diff options
Diffstat (limited to 'xlators/features/marker/src')
| -rw-r--r-- | xlators/features/marker/src/Makefile.am | 17 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-common.c | 69 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-common.h | 27 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-mem-types.h | 25 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-quota-helper.c | 414 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-quota-helper.h | 76 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-quota.c | 2520 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker-quota.h | 130 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker.c | 2862 | ||||
| -rw-r--r-- | xlators/features/marker/src/marker.h | 138 |
10 files changed, 6278 insertions, 0 deletions
diff --git a/xlators/features/marker/src/Makefile.am b/xlators/features/marker/src/Makefile.am new file mode 100644 index 000000000..a7c676472 --- /dev/null +++ b/xlators/features/marker/src/Makefile.am @@ -0,0 +1,17 @@ +xlator_LTLIBRARIES = marker.la +xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features + +marker_la_LDFLAGS = -module -avoid-version + +marker_la_SOURCES = marker.c marker-quota.c marker-quota-helper.c marker-common.c +marker_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la + +noinst_HEADERS = marker-mem-types.h marker.h marker-quota.h marker-quota-helper.h marker-common.h $(top_builddir)/xlators/lib/src/libxlator.h + +AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ + -I$(top_srcdir)/xlators/lib/src + +AM_CFLAGS = -Wall -fno-strict-aliasing $(GF_CFLAGS) + +CLEANFILES = + diff --git a/xlators/features/marker/src/marker-common.c b/xlators/features/marker/src/marker-common.c new file mode 100644 index 000000000..84a718add --- /dev/null +++ b/xlators/features/marker/src/marker-common.c @@ -0,0 +1,69 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif +#include <fnmatch.h> +#include "marker-common.h" + +marker_inode_ctx_t * +marker_inode_ctx_new () +{ + marker_inode_ctx_t *ctx = NULL; + + ctx = GF_CALLOC (1, sizeof (marker_inode_ctx_t), + gf_marker_mt_marker_inode_ctx_t); + if (ctx == NULL) + goto out; + + ctx->quota_ctx = NULL; +out: + return ctx; +} + +int32_t +marker_force_inode_ctx_get (inode_t *inode, xlator_t *this, + marker_inode_ctx_t **ctx) +{ + int32_t ret = -1; + uint64_t ctx_int = 0; + + LOCK (&inode->lock); + { + ret = __inode_ctx_get (inode, this, &ctx_int); + if (ret == 0) + *ctx = (marker_inode_ctx_t *) (unsigned long)ctx_int; + else { + *ctx = marker_inode_ctx_new (); + if (*ctx == NULL) + goto unlock; + + ret = __inode_ctx_put (inode, this, + (uint64_t )(unsigned long) *ctx); + if (ret == -1) { + GF_FREE (*ctx); + goto unlock; + } + ret = 0; + } + } +unlock: UNLOCK (&inode->lock); + + return ret; +} + +int +marker_filter_quota_xattr (dict_t *dict, char *key, + data_t *value, void *data) +{ + dict_del (dict, key); + return 0; +} diff --git a/xlators/features/marker/src/marker-common.h b/xlators/features/marker/src/marker-common.h new file mode 100644 index 000000000..23dd846cb --- /dev/null +++ b/xlators/features/marker/src/marker-common.h @@ -0,0 +1,27 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _MARKER_COMMON_H +#define _MARKER_COMMON_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "inode.h" +#include "xlator.h" +#include "marker.h" + +int32_t +marker_force_inode_ctx_get (inode_t *, xlator_t *, marker_inode_ctx_t **); + +int +marker_filter_quota_xattr (dict_t *, char *, data_t *, void *); +#endif diff --git a/xlators/features/marker/src/marker-mem-types.h b/xlators/features/marker/src/marker-mem-types.h new file mode 100644 index 000000000..1f74d5048 --- /dev/null +++ b/xlators/features/marker/src/marker-mem-types.h @@ -0,0 +1,25 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef __MARKER_MEM_TYPES_H__ +#define __MARKER_MEM_TYPES_H__ + +#include "mem-types.h" + +enum gf_marker_mem_types_ { + gf_marker_mt_marker_conf_t = gf_common_mt_end + 1, + gf_marker_mt_loc_t, + gf_marker_mt_volume_mark, + gf_marker_mt_int64_t, + gf_marker_mt_quota_inode_ctx_t, + gf_marker_mt_marker_inode_ctx_t, + gf_marker_mt_inode_contribution_t, + gf_marker_mt_end +}; +#endif diff --git a/xlators/features/marker/src/marker-quota-helper.c b/xlators/features/marker/src/marker-quota-helper.c new file mode 100644 index 000000000..af5fed132 --- /dev/null +++ b/xlators/features/marker/src/marker-quota-helper.c @@ -0,0 +1,414 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "locking.h" +#include "marker-quota.h" +#include "marker-common.h" +#include "marker-quota-helper.h" +#include "marker-mem-types.h" + +int +mq_loc_fill (loc_t *loc, inode_t *inode, inode_t *parent, char *path) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", loc, out); + GF_VALIDATE_OR_GOTO ("marker", inode, out); + GF_VALIDATE_OR_GOTO ("marker", path, out); + /* Not checking for parent because while filling + * loc of root, parent will be NULL + */ + + if (inode) { + loc->inode = inode_ref (inode); + } + + if (parent) + loc->parent = inode_ref (parent); + + loc->path = gf_strdup (path); + if (!loc->path) { + gf_log ("loc fill", GF_LOG_ERROR, "strdup failed"); + goto loc_wipe; + } + + loc->name = strrchr (loc->path, '/'); + if (loc->name) + loc->name++; + else + goto loc_wipe; + + ret = 0; +loc_wipe: + if (ret < 0) + loc_wipe (loc); +out: + return ret; +} + + +int32_t +mq_inode_loc_fill (const char *parent_gfid, inode_t *inode, loc_t *loc) +{ + char *resolvedpath = NULL; + inode_t *parent = NULL; + int ret = -1; + + if ((!inode) || (!loc)) + return ret; + + if ((inode) && __is_root_gfid (inode->gfid)) { + loc->parent = NULL; + goto ignore_parent; + } + + if (parent_gfid == NULL) + parent = inode_parent (inode, 0, NULL); + else + parent = inode_find (inode->table, + (unsigned char *) parent_gfid); + + if (parent == NULL) + goto err; + +ignore_parent: + ret = inode_path (inode, NULL, &resolvedpath); + if (ret < 0) + goto err; + + ret = mq_loc_fill (loc, inode, parent, resolvedpath); + if (ret < 0) + goto err; + +err: + if (parent) + inode_unref (parent); + + GF_FREE (resolvedpath); + + return ret; +} + + +quota_inode_ctx_t * +mq_alloc_inode_ctx () +{ + int32_t ret = -1; + quota_inode_ctx_t *ctx = NULL; + + QUOTA_ALLOC (ctx, quota_inode_ctx_t, ret); + if (ret == -1) + goto out; + + ctx->size = 0; + ctx->dirty = 0; + ctx->updation_status = _gf_false; + LOCK_INIT (&ctx->lock); + INIT_LIST_HEAD (&ctx->contribution_head); +out: + return ctx; +} + +inode_contribution_t * +mq_get_contribution_node (inode_t *inode, quota_inode_ctx_t *ctx) +{ + inode_contribution_t *contri = NULL; + inode_contribution_t *temp = NULL; + + if (!inode || !ctx) + goto out; + + list_for_each_entry (temp, &ctx->contribution_head, contri_list) { + if (uuid_compare (temp->gfid, inode->gfid) == 0) { + contri = temp; + goto out; + } + } +out: + return contri; +} + + +int32_t +mq_delete_contribution_node (dict_t *dict, char *key, + inode_contribution_t *contribution) +{ + if (dict_get (dict, key) != NULL) + goto out; + + QUOTA_FREE_CONTRIBUTION_NODE (contribution); +out: + return 0; +} + + +inode_contribution_t * +__mq_add_new_contribution_node (xlator_t *this, quota_inode_ctx_t *ctx, loc_t *loc) +{ + int32_t ret = 0; + inode_contribution_t *contribution = NULL; + + if (!loc->parent) { + if (!uuid_is_null (loc->pargfid)) + loc->parent = inode_find (loc->inode->table, + loc->pargfid); + if (!loc->parent) + loc->parent = inode_parent (loc->inode, loc->pargfid, + loc->name); + if (!loc->parent) + goto out; + } + + list_for_each_entry (contribution, &ctx->contribution_head, contri_list) { + if (loc->parent && + uuid_compare (contribution->gfid, loc->parent->gfid) == 0) { + goto out; + } + } + + QUOTA_ALLOC (contribution, inode_contribution_t, ret); + if (ret == -1) + goto out; + + contribution->contribution = 0; + + uuid_copy (contribution->gfid, loc->parent->gfid); + + LOCK_INIT (&contribution->lock); + INIT_LIST_HEAD (&contribution->contri_list); + + list_add_tail (&contribution->contri_list, &ctx->contribution_head); + +out: + return contribution; +} + + +inode_contribution_t * +mq_add_new_contribution_node (xlator_t *this, quota_inode_ctx_t *ctx, loc_t *loc) +{ + inode_contribution_t *contribution = NULL; + + if ((ctx == NULL) || (loc == NULL)) + return NULL; + + if (strcmp (loc->path, "/") == 0) + return NULL; + + LOCK (&ctx->lock); + { + contribution = __mq_add_new_contribution_node (this, ctx, loc); + } + UNLOCK (&ctx->lock); + + return contribution; +} + + +int32_t +mq_dict_set_contribution (xlator_t *this, dict_t *dict, + loc_t *loc) +{ + int32_t ret = -1; + char contri_key [512] = {0, }; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", dict, out); + GF_VALIDATE_OR_GOTO ("marker", loc, out); + GF_VALIDATE_OR_GOTO ("marker", loc->parent, out); + + GET_CONTRI_KEY (contri_key, loc->parent->gfid, ret); + if (ret < 0) { + ret = -1; + goto out; + } + + ret = dict_set_int64 (dict, contri_key, 0); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "unable to set dict value on %s.", + loc->path); + goto out; + } + + ret = 0; +out: + return ret; +} + + +int32_t +mq_inode_ctx_get (inode_t *inode, xlator_t *this, + quota_inode_ctx_t **ctx) +{ + int32_t ret = -1; + uint64_t ctx_int = 0; + marker_inode_ctx_t *mark_ctx = NULL; + + GF_VALIDATE_OR_GOTO ("marker", inode, out); + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", ctx, out); + + ret = inode_ctx_get (inode, this, &ctx_int); + if (ret < 0) { + ret = -1; + *ctx = NULL; + goto out; + } + + mark_ctx = (marker_inode_ctx_t *) (unsigned long)ctx_int; + if (mark_ctx->quota_ctx == NULL) { + ret = -1; + goto out; + } + + *ctx = mark_ctx->quota_ctx; + + ret = 0; + +out: + return ret; +} + + +quota_inode_ctx_t * +__mq_inode_ctx_new (inode_t *inode, xlator_t *this) +{ + int32_t ret = -1; + quota_inode_ctx_t *quota_ctx = NULL; + marker_inode_ctx_t *mark_ctx = NULL; + + ret = marker_force_inode_ctx_get (inode, this, &mark_ctx); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "marker_force_inode_ctx_get() failed"); + goto out; + } + + LOCK (&inode->lock); + { + if (mark_ctx->quota_ctx == NULL) { + quota_ctx = mq_alloc_inode_ctx (); + if (quota_ctx == NULL) { + ret = -1; + goto unlock; + } + mark_ctx->quota_ctx = quota_ctx; + } else { + quota_ctx = mark_ctx->quota_ctx; + } + + ret = 0; + } +unlock: + UNLOCK (&inode->lock); +out: + return quota_ctx; +} + + +quota_inode_ctx_t * +mq_inode_ctx_new (inode_t * inode, xlator_t *this) +{ + return __mq_inode_ctx_new (inode, this); +} + +quota_local_t * +mq_local_new () +{ + quota_local_t *local = NULL; + + local = mem_get0 (THIS->local_pool); + if (!local) + goto out; + + local->ref = 1; + LOCK_INIT (&local->lock); + + local->ctx = NULL; + local->contri = NULL; + +out: + return local; +} + +quota_local_t * +mq_local_ref (quota_local_t *local) +{ + LOCK (&local->lock); + { + local->ref ++; + } + UNLOCK (&local->lock); + + return local; +} + + +int32_t +mq_local_unref (xlator_t *this, quota_local_t *local) +{ + int32_t ref = 0; + if (local == NULL) + goto out; + + QUOTA_SAFE_DECREMENT (&local->lock, local->ref, ref); + + if (ref != 0) + goto out; + + if (local->fd != NULL) + fd_unref (local->fd); + + loc_wipe (&local->loc); + + loc_wipe (&local->parent_loc); + + LOCK_DESTROY (&local->lock); + + mem_put (local); +out: + return 0; +} + + +inode_contribution_t * +mq_get_contribution_from_loc (xlator_t *this, loc_t *loc) +{ + int32_t ret = 0; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret < 0) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "cannot get marker-quota context from inode " + "(gfid:%s, path:%s)", + uuid_utoa (loc->inode->gfid), loc->path); + goto err; + } + + contribution = mq_get_contribution_node (loc->parent, ctx); + if (contribution == NULL) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "inode (gfid:%s, path:%s) has " + "no contribution towards parent (gfid:%s)", + uuid_utoa (loc->inode->gfid), + loc->path, uuid_utoa (loc->parent->gfid)); + goto err; + } + +err: + return contribution; +} diff --git a/xlators/features/marker/src/marker-quota-helper.h b/xlators/features/marker/src/marker-quota-helper.h new file mode 100644 index 000000000..6cdd14881 --- /dev/null +++ b/xlators/features/marker/src/marker-quota-helper.h @@ -0,0 +1,76 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#ifndef _MARKER_QUOTA_HELPER_H +#define _MARKER_QUOTA_HELPER + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "marker.h" + +#define QUOTA_FREE_CONTRIBUTION_NODE(_contribution) \ + do { \ + list_del (&_contribution->contri_list); \ + GF_FREE (_contribution); \ + } while (0) + +#define QUOTA_SAFE_INCREMENT(lock, var) \ + do { \ + LOCK (lock); \ + var ++; \ + UNLOCK (lock); \ + } while (0) + +#define QUOTA_SAFE_DECREMENT(lock, var, value) \ + do { \ + LOCK (lock); \ + { \ + value = --var; \ + } \ + UNLOCK (lock); \ + } while (0) + +inode_contribution_t * +mq_add_new_contribution_node (xlator_t *, quota_inode_ctx_t *, loc_t *); + +int32_t +mq_dict_set_contribution (xlator_t *, dict_t *, loc_t *); + +quota_inode_ctx_t * +mq_inode_ctx_new (inode_t *, xlator_t *); + +int32_t +mq_inode_ctx_get (inode_t *, xlator_t *, quota_inode_ctx_t **); + +int32_t +mq_delete_contribution_node (dict_t *, char *, inode_contribution_t *); + +int32_t +mq_inode_loc_fill (const char *, inode_t *, loc_t *); + +quota_local_t * +mq_local_new (); + +quota_local_t * +mq_local_ref (quota_local_t *); + +int32_t +mq_local_unref (xlator_t *, quota_local_t *); + +inode_contribution_t * +mq_get_contribution_node (inode_t *, quota_inode_ctx_t *); + +inode_contribution_t * +mq_get_contribution_from_loc (xlator_t *this, loc_t *loc); + +#endif diff --git a/xlators/features/marker/src/marker-quota.c b/xlators/features/marker/src/marker-quota.c new file mode 100644 index 000000000..6f9af6e13 --- /dev/null +++ b/xlators/features/marker/src/marker-quota.c @@ -0,0 +1,2520 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "dict.h" +#include "xlator.h" +#include "defaults.h" +#include "libxlator.h" +#include "common-utils.h" +#include "byte-order.h" +#include "marker-quota.h" +#include "marker-quota-helper.h" + +int +mq_loc_copy (loc_t *dst, loc_t *src) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", dst, out); + GF_VALIDATE_OR_GOTO ("marker", src, out); + + if (src->inode == NULL || + src->path == NULL) { + gf_log ("marker", GF_LOG_WARNING, + "src loc is not valid"); + goto out; + } + + ret = loc_copy (dst, src); +out: + return ret; +} + +int32_t +mq_get_local_err (quota_local_t *local, + int32_t *val) +{ + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", local, out); + GF_VALIDATE_OR_GOTO ("marker", val, out); + + LOCK (&local->lock); + { + *val = local->err; + } + UNLOCK (&local->lock); + + ret = 0; +out: + return ret; +} + +int32_t +mq_get_ctx_updation_status (quota_inode_ctx_t *ctx, + gf_boolean_t *status) +{ + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", ctx, out); + GF_VALIDATE_OR_GOTO ("marker", status, out); + + LOCK (&ctx->lock); + { + *status = ctx->updation_status; + } + UNLOCK (&ctx->lock); + + ret = 0; +out: + return ret; +} + + +int32_t +mq_set_ctx_updation_status (quota_inode_ctx_t *ctx, + gf_boolean_t status) +{ + int32_t ret = -1; + + if (ctx == NULL) + goto out; + + LOCK (&ctx->lock); + { + ctx->updation_status = status; + } + UNLOCK (&ctx->lock); + + ret = 0; +out: + return ret; +} + +int32_t +mq_test_and_set_ctx_updation_status (quota_inode_ctx_t *ctx, + gf_boolean_t *status) +{ + int32_t ret = -1; + gf_boolean_t temp = _gf_false; + + GF_VALIDATE_OR_GOTO ("marker", ctx, out); + GF_VALIDATE_OR_GOTO ("marker", status, out); + + LOCK (&ctx->lock); + { + temp = *status; + *status = ctx->updation_status; + ctx->updation_status = temp; + } + UNLOCK (&ctx->lock); + + ret = 0; +out: + return ret; +} + +void +mq_assign_lk_owner (xlator_t *this, call_frame_t *frame) +{ + marker_conf_t *conf = NULL; + uint64_t lk_owner = 0; + + conf = this->private; + + LOCK (&conf->lock); + { + if (++conf->quota_lk_owner == 0) { + ++conf->quota_lk_owner; + } + + lk_owner = conf->quota_lk_owner; + } + UNLOCK (&conf->lock); + + set_lk_owner_from_uint64 (&frame->root->lk_owner, lk_owner); + + return; +} + + +int32_t +mq_loc_fill_from_name (xlator_t *this, loc_t *newloc, loc_t *oldloc, + uint64_t ino, char *name) +{ + int32_t ret = -1; + int32_t len = 0; + char *path = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", newloc, out); + GF_VALIDATE_OR_GOTO ("marker", oldloc, out); + GF_VALIDATE_OR_GOTO ("marker", name, out); + + newloc->inode = inode_new (oldloc->inode->table); + + if (!newloc->inode) { + ret = -1; + goto out; + } + + newloc->parent = inode_ref (oldloc->inode); + uuid_copy (newloc->pargfid, oldloc->inode->gfid); + + len = strlen (oldloc->path); + + if (oldloc->path [len - 1] == '/') + ret = gf_asprintf ((char **) &path, "%s%s", + oldloc->path, name); + else + ret = gf_asprintf ((char **) &path, "%s/%s", + oldloc->path, name); + + if (ret < 0) + goto out; + + newloc->path = path; + + newloc->name = strrchr (newloc->path, '/'); + + if (newloc->name) + newloc->name++; + + gf_log (this->name, GF_LOG_DEBUG, "path = %s name =%s", + newloc->path, newloc->name); +out: + return ret; +} + +int32_t +mq_dirty_inode_updation_done (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + QUOTA_STACK_DESTROY (frame, this); + + return 0; +} + +int32_t +mq_release_lock_on_dirty_inode (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + struct gf_flock lock = {0, }; + quota_local_t *local = NULL; + loc_t loc = {0, }; + int ret = -1; + + local = frame->local; + + if (op_ret == -1) { + local->err = -1; + + mq_dirty_inode_updation_done (frame, NULL, this, 0, 0, NULL); + + return 0; + } + + if (op_ret == 0) + local->ctx->dirty = 0; + + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + ret = loc_copy (&loc, &local->loc); + if (ret == -1) { + local->err = -1; + frame->local = NULL; + mq_dirty_inode_updation_done (frame, NULL, this, 0, 0, NULL); + return 0; + } + + if (local->loc.inode == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "Inode is NULL, so can't stackwind."); + goto out; + } + + STACK_WIND (frame, + mq_dirty_inode_updation_done, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &loc, F_SETLKW, &lock, NULL); + + loc_wipe (&loc); + + return 0; +out: + mq_dirty_inode_updation_done (frame, NULL, this, -1, 0, NULL); + + return 0; +} + +int32_t +mq_mark_inode_undirty (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, + dict_t *xdata) +{ + int32_t ret = -1; + int64_t *size = NULL; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + + local = (quota_local_t *) frame->local; + + if (op_ret == -1) + goto err; + + if (!dict) + goto wind; + + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, (void **) &size); + if (ret) + goto wind; + + LOCK (&local->ctx->lock); + { + local->ctx->size = ntoh64 (*size); + } + UNLOCK (&local->ctx->lock); + +wind: + newdict = dict_new (); + if (!newdict) + goto err; + + ret = dict_set_int8 (newdict, QUOTA_DIRTY_KEY, 0); + if (ret) + goto err; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + STACK_WIND (frame, mq_release_lock_on_dirty_inode, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, + &local->loc, newdict, 0, NULL); + ret = 0; + +err: + if (op_ret == -1 || ret == -1) { + local->err = -1; + + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + } + + if (newdict) + dict_unref (newdict); + + return 0; +} + +int32_t +mq_update_size_xattr (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *dict, struct iatt *postparent) +{ + int32_t ret = -1; + dict_t *new_dict = NULL; + int64_t *size = NULL; + int64_t *delta = NULL; + quota_local_t *local = NULL; + + local = frame->local; + + if (op_ret == -1) + goto err; + + if (dict == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "Dict is null while updating the size xattr %s", + local->loc.path?local->loc.path:""); + goto err; + } + + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, (void **) &size); + if (!size) { + gf_log (this->name, GF_LOG_WARNING, + "failed to get the size, %s", + local->loc.path?local->loc.path:""); + goto err; + } + + QUOTA_ALLOC_OR_GOTO (delta, int64_t, ret, err); + + *delta = hton64 (local->sum - ntoh64 (*size)); + + gf_log (this->name, GF_LOG_DEBUG, "calculated size = %"PRId64", " + "original size = %"PRIu64 + " path = %s diff = %"PRIu64, local->sum, ntoh64 (*size), + local->loc.path, ntoh64 (*delta)); + + new_dict = dict_new (); + if (!new_dict); + + ret = dict_set_bin (new_dict, QUOTA_SIZE_KEY, delta, 8); + if (ret) + goto err; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_mark_inode_undirty, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, &local->loc, + GF_XATTROP_ADD_ARRAY64, new_dict, NULL); + + ret = 0; + +err: + if (op_ret == -1 || ret == -1) { + local->err = -1; + + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + } + + if (new_dict) + dict_unref (new_dict); + + return 0; +} + +int32_t +mq_test_and_set_local_err(quota_local_t *local, + int32_t *val) +{ + int tmp = 0; + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", local, out); + GF_VALIDATE_OR_GOTO ("marker", val, out); + + LOCK (&local->lock); + { + tmp = local->err; + local->err = *val; + *val = tmp; + } + UNLOCK (&local->lock); + + ret = 0; +out: + return ret; +} + +int32_t +mq_get_dirty_inode_size (call_frame_t *frame, xlator_t *this) +{ + int32_t ret = -1; + dict_t *dict = NULL; + quota_local_t *local = NULL; + + local = (quota_local_t *) frame->local; + + dict = dict_new (); + if (!dict) { + ret = -1; + goto err; + } + + ret = dict_set_int64 (dict, QUOTA_SIZE_KEY, 0); + if (ret) + goto err; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_update_size_xattr, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, &local->loc, dict); + ret =0; + +err: + if (ret) { + local->err = -1; + + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + } + + if (dict) + dict_unref (dict); + + return 0; +} + +int32_t +mq_get_child_contribution (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + inode_t *inode, + struct iatt *buf, + dict_t *dict, + struct iatt *postparent) +{ + int32_t ret = -1; + int32_t val = 0; + char contri_key [512] = {0, }; + int64_t *contri = NULL; + quota_local_t *local = NULL; + + local = frame->local; + + frame->local = NULL; + + QUOTA_STACK_DESTROY (frame, this); + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_ERROR, "%s", + strerror (op_errno)); + val = -2; + if (!mq_test_and_set_local_err (local, &val) && + val != -2) + mq_release_lock_on_dirty_inode (local->frame, NULL, + this, 0, 0, NULL); + + goto exit; + } + + ret = mq_get_local_err (local, &val); + if (!ret && val == -2) + goto exit; + + GET_CONTRI_KEY (contri_key, local->loc.inode->gfid, ret); + if (ret < 0) + goto out; + + if (!dict) + goto out; + + if (dict_get_bin (dict, contri_key, (void **) &contri) == 0) + local->sum += ntoh64 (*contri); + +out: + LOCK (&local->lock); + { + val = --local->dentry_child_count; + } + UNLOCK (&local->lock); + + if (val == 0) { + mq_dirty_inode_readdir (local->frame, NULL, this, + 0, 0, NULL, NULL); + } + mq_local_unref (this, local); + + return 0; +exit: + mq_local_unref (this, local); + return 0; +} + +int32_t +mq_readdir_cbk (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + gf_dirent_t *entries, dict_t *xdata) +{ + char contri_key [512] = {0, }; + int32_t ret = 0; + int32_t val = 0; + off_t offset = 0; + int32_t count = 0; + dict_t *dict = NULL; + quota_local_t *local = NULL; + gf_dirent_t *entry = NULL; + call_frame_t *newframe = NULL; + loc_t loc = {0, }; + + local = mq_local_ref (frame->local); + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "readdir failed %s", strerror (op_errno)); + local->err = -1; + + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + + goto end; + } else if (op_ret == 0) { + mq_get_dirty_inode_size (frame, this); + + goto end; + } + + local->dentry_child_count = 0; + + list_for_each_entry (entry, (&entries->list), list) { + gf_log (this->name, GF_LOG_DEBUG, "entry = %s", entry->d_name); + + if ((!strcmp (entry->d_name, ".")) || (!strcmp (entry->d_name, + ".."))) { + gf_log (this->name, GF_LOG_DEBUG, "entry = %s", + entry->d_name); + continue; + } + + offset = entry->d_off; + count++; + } + + if (count == 0) { + mq_get_dirty_inode_size (frame, this); + goto end; + + } + + local->frame = frame; + + LOCK (&local->lock); + { + local->dentry_child_count = count; + local->d_off = offset; + } + UNLOCK (&local->lock); + + + list_for_each_entry (entry, (&entries->list), list) { + gf_log (this->name, GF_LOG_DEBUG, "entry = %s", entry->d_name); + + if ((!strcmp (entry->d_name, ".")) || (!strcmp (entry->d_name, + ".."))) { + gf_log (this->name, GF_LOG_DEBUG, "entry = %s", + entry->d_name); + continue; + } + + ret = mq_loc_fill_from_name (this, &loc, &local->loc, + entry->d_ino, entry->d_name); + if (ret < 0) + goto out; + + ret = 0; + + LOCK (&local->lock); + { + if (local->err != -2) { + newframe = copy_frame (frame); + if (!newframe) { + ret = -1; + } + } else + ret = -1; + } + UNLOCK (&local->lock); + + if (ret == -1) + goto out; + + newframe->local = mq_local_ref (local); + + dict = dict_new (); + if (!dict) { + ret = -1; + goto out; + } + + GET_CONTRI_KEY (contri_key, local->loc.inode->gfid, ret); + if (ret < 0) + goto out; + + ret = dict_set_int64 (dict, contri_key, 0); + if (ret) + goto out; + + STACK_WIND (newframe, + mq_get_child_contribution, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, + &loc, dict); + + offset = entry->d_off; + + loc_wipe (&loc); + + newframe = NULL; + + out: + if (dict) { + dict_unref (dict); + dict = NULL; + } + + if (ret) { + val = -2; + mq_test_and_set_local_err (local, &val); + + if (newframe) { + newframe->local = NULL; + mq_local_unref(this, local); + QUOTA_STACK_DESTROY (newframe, this); + } + + break; + } + } + + if (ret && val != -2) { + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + } +end: + mq_local_unref (this, local); + + return 0; +} + +int32_t +mq_dirty_inode_readdir (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + fd_t *fd, dict_t *xdata) +{ + quota_local_t *local = NULL; + + local = frame->local; + + if (op_ret == -1) { + local->err = -1; + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + return 0; + } + + if (local->fd == NULL) + local->fd = fd_ref (fd); + + STACK_WIND (frame, + mq_readdir_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdir, + local->fd, READDIR_BUF, local->d_off, xdata); + + return 0; +} + +int32_t +mq_check_if_still_dirty (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + inode_t *inode, + struct iatt *buf, + dict_t *dict, + struct iatt *postparent) +{ + int8_t dirty = -1; + int32_t ret = -1; + fd_t *fd = NULL; + quota_local_t *local = NULL; + + local = frame->local; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_ERROR, "failed to get " + "the dirty xattr for %s", local->loc.path); + goto err; + } + + if (!dict) { + ret = -1; + goto err; + } + + ret = dict_get_int8 (dict, QUOTA_DIRTY_KEY, &dirty); + if (ret) + goto err; + + //the inode is not dirty anymore + if (dirty == 0) { + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + + return 0; + } + + fd = fd_create (local->loc.inode, frame->root->pid); + + local->d_off = 0; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + GF_UUID_ASSERT (local->loc.gfid); + STACK_WIND(frame, + mq_dirty_inode_readdir, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, + &local->loc, fd, NULL); + + ret = 0; + +err: + if (op_ret == -1 || ret == -1) { + local->err = -1; + mq_release_lock_on_dirty_inode (frame, NULL, this, 0, 0, NULL); + } + + if (fd != NULL) { + fd_unref (fd); + } + + return 0; +} + +int32_t +mq_get_dirty_xattr (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = -1; + dict_t *xattr_req = NULL; + quota_local_t *local = NULL; + + if (op_ret == -1) { + mq_dirty_inode_updation_done (frame, NULL, this, 0, 0, NULL); + return 0; + } + + local = frame->local; + + xattr_req = dict_new (); + if (xattr_req == NULL) { + ret = -1; + goto err; + } + + ret = dict_set_int8 (xattr_req, QUOTA_DIRTY_KEY, 0); + if (ret) + goto err; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, + mq_check_if_still_dirty, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, + &local->loc, + xattr_req); + ret = 0; + +err: + if (ret) { + local->err = -1; + mq_release_lock_on_dirty_inode(frame, NULL, this, 0, 0, NULL); + } + + if (xattr_req) + dict_unref (xattr_req); + + return 0; +} + +/* return 1 when dirty updation started + * 0 other wise + */ +int32_t +mq_update_dirty_inode (xlator_t *this, + loc_t *loc, + quota_inode_ctx_t *ctx, + inode_contribution_t *contribution) +{ + int32_t ret = -1; + quota_local_t *local = NULL; + gf_boolean_t status = _gf_false; + struct gf_flock lock = {0, }; + call_frame_t *frame = NULL; + + ret = mq_get_ctx_updation_status (ctx, &status); + if (ret == -1 || status == _gf_true) { + ret = 0; + goto out; + } + + frame = create_frame (this, this->ctx->pool); + if (frame == NULL) { + ret = -1; + goto out; + } + + mq_assign_lk_owner (this, frame); + + local = mq_local_new (); + if (local == NULL) + goto fr_destroy; + + frame->local = local; + ret = mq_loc_copy (&local->loc, loc); + if (ret < 0) + goto fr_destroy; + + local->ctx = ctx; + + local->contri = contribution; + + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + + if (local->loc.inode == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_WARNING, + "Inode is NULL, so can't stackwind."); + goto fr_destroy; + } + + STACK_WIND (frame, + mq_get_dirty_xattr, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->loc, F_SETLKW, &lock, NULL); + return 1; + +fr_destroy: + QUOTA_STACK_DESTROY (frame, this); +out: + + return 0; +} + + +int32_t +mq_inode_creation_done (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + quota_local_t *local = NULL; + + if (frame == NULL) + return 0; + + local = frame->local; + + if (local != NULL) { + mq_initiate_quota_txn (this, &local->loc); + } + + QUOTA_STACK_DESTROY (frame, this); + + return 0; +} + + +int32_t +mq_xattr_creation_release_lock (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + struct gf_flock lock = {0, }; + quota_local_t *local = NULL; + + local = frame->local; + + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + STACK_WIND (frame, + mq_inode_creation_done, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->loc, + F_SETLKW, &lock, NULL); + + return 0; +} + + +int32_t +mq_create_dirty_xattr (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, + dict_t *xdata) +{ + int32_t ret = -1; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + + if (op_ret < 0) { + goto err; + } + + local = frame->local; + + if (local->loc.inode->ia_type == IA_IFDIR) { + newdict = dict_new (); + if (!newdict) { + goto err; + } + + ret = dict_set_int8 (newdict, QUOTA_DIRTY_KEY, 0); + if (ret == -1) { + goto err; + } + + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_xattr_creation_release_lock, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, + &local->loc, newdict, 0, NULL); + } else { + mq_xattr_creation_release_lock (frame, NULL, this, 0, 0, NULL); + } + + ret = 0; + +err: + if (ret < 0) { + mq_xattr_creation_release_lock (frame, NULL, this, 0, 0, NULL); + } + + if (newdict != NULL) + dict_unref (newdict); + + return 0; +} + + +int32_t +mq_create_xattr (xlator_t *this, call_frame_t *frame) +{ + int32_t ret = 0; + int64_t *value = NULL; + int64_t *size = NULL; + dict_t *dict = NULL; + char key[512] = {0, }; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contri = NULL; + + if (frame == NULL || this == NULL) + return 0; + + local = frame->local; + + ret = mq_inode_ctx_get (local->loc.inode, this, &ctx); + if (ret < 0) { + ctx = mq_inode_ctx_new (local->loc.inode, this); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "mq_inode_ctx_new failed"); + ret = -1; + goto out; + } + } + + dict = dict_new (); + if (!dict) + goto out; + + if (local->loc.inode->ia_type == IA_IFDIR) { + QUOTA_ALLOC_OR_GOTO (size, int64_t, ret, err); + ret = dict_set_bin (dict, QUOTA_SIZE_KEY, size, 8); + if (ret < 0) + goto free_size; + } + + if (strcmp (local->loc.path, "/") != 0) { + contri = mq_add_new_contribution_node (this, ctx, &local->loc); + if (contri == NULL) + goto err; + + QUOTA_ALLOC_OR_GOTO (value, int64_t, ret, err); + GET_CONTRI_KEY (key, local->loc.parent->gfid, ret); + + ret = dict_set_bin (dict, key, value, 8); + if (ret < 0) + goto free_value; + } + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_create_dirty_xattr, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, &local->loc, + GF_XATTROP_ADD_ARRAY64, dict, NULL); + ret = 0; + +free_size: + if (ret < 0) { + GF_FREE (size); + } + +free_value: + if (ret < 0) { + GF_FREE (value); + } + +err: + dict_unref (dict); + +out: + if (ret < 0) { + mq_xattr_creation_release_lock (frame, NULL, this, 0, 0, NULL); + } + + return 0; +} + + +int32_t +mq_check_n_set_inode_xattr (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, int32_t op_errno, + inode_t *inode, struct iatt *buf, dict_t *dict, + struct iatt *postparent) +{ + quota_local_t *local = NULL; + int64_t *size = NULL, *contri = NULL; + int8_t dirty = 0; + int32_t ret = 0; + char contri_key[512] = {0, }; + + if (op_ret < 0) { + goto out; + } + + local = frame->local; + + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) + goto create_xattr; + + ret = dict_get_int8 (dict, QUOTA_DIRTY_KEY, &dirty); + if (ret < 0) + goto create_xattr; + + //check contribution xattr if not root + if (strcmp (local->loc.path, "/") != 0) { + GET_CONTRI_KEY (contri_key, local->loc.parent->gfid, ret); + if (ret < 0) + goto out; + + ret = dict_get_bin (dict, contri_key, (void **) &contri); + if (ret < 0) + goto create_xattr; + } + +out: + mq_xattr_creation_release_lock (frame, NULL, this, 0, 0, NULL); + return 0; + +create_xattr: + if (uuid_is_null (local->loc.gfid)) { + uuid_copy (local->loc.gfid, buf->ia_gfid); + } + + mq_create_xattr (this, frame); + return 0; +} + + +int32_t +mq_get_xattr (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + dict_t *xattr_req = NULL; + quota_local_t *local = NULL; + int32_t ret = 0; + + if (op_ret < 0) { + goto lock_err; + } + + local = frame->local; + + xattr_req = dict_new (); + if (xattr_req == NULL) { + goto err; + } + + ret = mq_req_xattr (this, &local->loc, xattr_req); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, "cannot request xattr"); + goto err; + } + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_check_n_set_inode_xattr, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, &local->loc, xattr_req); + + dict_unref (xattr_req); + + return 0; + +err: + mq_xattr_creation_release_lock (frame, NULL, this, 0, 0, NULL); + + if (xattr_req) + dict_unref (xattr_req); + return 0; + +lock_err: + mq_inode_creation_done (frame, NULL, this, 0, 0, NULL); + return 0; +} + + +int32_t +mq_set_inode_xattr (xlator_t *this, loc_t *loc) +{ + struct gf_flock lock = {0, }; + quota_local_t *local = NULL; + int32_t ret = 0; + call_frame_t *frame = NULL; + + frame = create_frame (this, this->ctx->pool); + if (!frame) { + ret = -1; + goto err; + } + + local = mq_local_new (); + if (local == NULL) { + goto err; + } + + frame->local = local; + + ret = loc_copy (&local->loc, loc); + if (ret < 0) { + goto err; + } + + frame->local = local; + + lock.l_len = 0; + lock.l_start = 0; + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + + STACK_WIND (frame, + mq_get_xattr, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->loc, F_SETLKW, &lock, NULL); + + return 0; + +err: + QUOTA_STACK_DESTROY (frame, this); + + return 0; +} + + +int32_t +mq_get_parent_inode_local (xlator_t *this, quota_local_t *local) +{ + int32_t ret = -1; + quota_inode_ctx_t *ctx = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", local, out); + + local->contri = NULL; + + loc_wipe (&local->loc); + + ret = mq_loc_copy (&local->loc, &local->parent_loc); + if (ret < 0) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "loc copy failed"); + goto out; + } + + loc_wipe (&local->parent_loc); + + ret = mq_inode_loc_fill (NULL, local->loc.parent, + &local->parent_loc); + if (ret < 0) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "failed to build parent loc of %s", + local->loc.path); + goto out; + } + + ret = mq_inode_ctx_get (local->loc.inode, this, &ctx); + if (ret < 0) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "inode ctx get failed"); + goto out; + } + + local->ctx = ctx; + + if (list_empty (&ctx->contribution_head)) { + gf_log_callingfn (this->name, GF_LOG_WARNING, + "contribution node list is empty which " + "is an error"); + ret = -1; + goto out; + } + + local->contri = (inode_contribution_t *) ctx->contribution_head.next; + + ret = 0; +out: + return ret; +} + + +int32_t +mq_xattr_updation_done (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + dict_t *dict, dict_t *xdata) +{ + QUOTA_STACK_DESTROY (frame, this); + return 0; +} + + +int32_t +mq_inodelk_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = 0; + gf_boolean_t status = _gf_false; + quota_local_t *local = NULL; + + local = frame->local; + + if (op_ret == -1 || local->err) { + if (op_ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "unlocking failed on path (%s)(%s)", + local->parent_loc.path, strerror (op_errno)); + } + mq_xattr_updation_done (frame, NULL, this, 0, 0, NULL, NULL); + + return 0; + } + + gf_log (this->name, GF_LOG_DEBUG, + "inodelk released on %s", local->parent_loc.path); + + if ((strcmp (local->parent_loc.path, "/") == 0) + || (local->delta == 0)) { + mq_xattr_updation_done (frame, NULL, this, 0, 0, NULL, NULL); + } else { + ret = mq_get_parent_inode_local (this, local); + if (ret < 0) { + mq_xattr_updation_done (frame, NULL, this, 0, 0, NULL, + NULL); + goto out; + } + status = _gf_true; + + ret = mq_test_and_set_ctx_updation_status (local->ctx, &status); + if (ret == 0 && status == _gf_false) { + mq_get_lock_on_parent (frame, this); + } else { + mq_xattr_updation_done (frame, NULL, this, 0, 0, NULL, + NULL); + } + } +out: + return 0; +} + + +//now release lock on the parent inode +int32_t +mq_release_parent_lock (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + int32_t ret = 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + struct gf_flock lock = {0, }; + + local = frame->local; + + if (local->err != 0) { + gf_log_callingfn (this->name, + (local->err == ENOENT) ? GF_LOG_DEBUG + : GF_LOG_WARNING, + "An operation during quota updation " + "of path (%s) failed (%s)", local->loc.path, + strerror (local->err)); + } + + ret = mq_inode_ctx_get (local->parent_loc.inode, this, &ctx); + if (ret < 0) + goto wind; + + LOCK (&ctx->lock); + { + ctx->dirty = 0; + } + UNLOCK (&ctx->lock); + + if (local->parent_loc.inode == NULL) { + gf_log (this->name, GF_LOG_DEBUG, + "Invalid parent inode."); + goto err; + } + +wind: + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + STACK_WIND (frame, + mq_inodelk_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->parent_loc, + F_SETLKW, &lock, NULL); + + return 0; +err: + mq_xattr_updation_done (frame, NULL, this, + 0, 0 , NULL, NULL); + return 0; +} + + +int32_t +mq_mark_undirty (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + dict_t *dict, dict_t *xdata) +{ + int32_t ret = -1; + int64_t *size = NULL; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + local = frame->local; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_WARNING, "%s occurred while" + " updating the size of %s", strerror (op_errno), + local->parent_loc.path); + + goto err; + } + + //update the size of the parent inode + if (dict != NULL) { + ret = mq_inode_ctx_get (local->parent_loc.inode, this, &ctx); + if (ret < 0) { + op_errno = EINVAL; + goto err; + } + + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) { + op_errno = EINVAL; + goto err; + } + + LOCK (&ctx->lock); + { + if (size) + ctx->size = ntoh64 (*size); + gf_log (this->name, GF_LOG_DEBUG, "%s %"PRId64, + local->parent_loc.path, ctx->size); + } + UNLOCK (&ctx->lock); + } + + newdict = dict_new (); + if (!newdict) { + op_errno = ENOMEM; + goto err; + } + + ret = dict_set_int8 (newdict, QUOTA_DIRTY_KEY, 0); + + if (ret == -1) { + op_errno = -ret; + goto err; + } + + uuid_copy (local->parent_loc.gfid, local->parent_loc.inode->gfid); + GF_UUID_ASSERT (local->parent_loc.gfid); + + STACK_WIND (frame, mq_release_parent_lock, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, + &local->parent_loc, newdict, 0, NULL); + + ret = 0; +err: + if (op_ret == -1 || ret == -1) { + local->err = op_errno; + + mq_release_parent_lock (frame, NULL, this, 0, 0, NULL); + } + + if (newdict) + dict_unref (newdict); + + return 0; +} + + +int32_t +mq_update_parent_size (call_frame_t *frame, + void *cookie, + xlator_t *this, + int32_t op_ret, + int32_t op_errno, + dict_t *dict, dict_t *xdata) +{ + int64_t *size = NULL; + int32_t ret = -1; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + local = frame->local; + + if (op_ret == -1) { + gf_log (this->name, ((op_errno == ENOENT) ? GF_LOG_DEBUG : + GF_LOG_WARNING), + "xattrop call failed: %s", strerror (op_errno)); + + goto err; + } + + LOCK (&local->contri->lock); + { + local->contri->contribution += local->delta; + } + UNLOCK (&local->contri->lock); + + gf_log (this->name, GF_LOG_DEBUG, "%s %"PRId64 "%"PRId64, + local->loc.path, local->ctx->size, + local->contri->contribution); + + if (dict == NULL) { + op_errno = EINVAL; + goto err; + } + + ret = mq_inode_ctx_get (local->parent_loc.inode, this, &ctx); + if (ret < 0) { + op_errno = EINVAL; + goto err; + } + + newdict = dict_new (); + if (!newdict) { + op_errno = ENOMEM; + ret = -1; + goto err; + } + + QUOTA_ALLOC_OR_GOTO (size, int64_t, ret, err); + + *size = hton64 (local->delta); + + ret = dict_set_bin (newdict, QUOTA_SIZE_KEY, size, 8); + if (ret < 0) { + op_errno = -ret; + goto err; + } + + if (uuid_is_null (local->parent_loc.gfid)) + uuid_copy (local->parent_loc.gfid, + local->parent_loc.inode->gfid); + GF_UUID_ASSERT (local->parent_loc.gfid); + + STACK_WIND (frame, + mq_mark_undirty, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, + &local->parent_loc, + GF_XATTROP_ADD_ARRAY64, + newdict, NULL); + ret = 0; +err: + if (op_ret == -1 || ret < 0) { + local->err = op_errno; + mq_release_parent_lock (frame, NULL, this, 0, 0, NULL); + } + + if (newdict) + dict_unref (newdict); + + return 0; +} + +int32_t +mq_update_inode_contribution (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *dict, + struct iatt *postparent) +{ + int32_t ret = -1; + int64_t *size = NULL, size_int = 0, contri_int = 0; + int64_t *contri = NULL; + int64_t *delta = NULL; + char contri_key [512] = {0, }; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + local = frame->local; + + if (op_ret == -1) { + gf_log (this->name, ((op_errno == ENOENT) ? GF_LOG_DEBUG : + GF_LOG_WARNING), + "failed to get size and contribution of path (%s)(%s)", + local->loc.path, strerror (op_errno)); + goto err; + } + + ctx = local->ctx; + contribution = local->contri; + + //prepare to update size & contribution of the inode + GET_CONTRI_KEY (contri_key, contribution->gfid, ret); + if (ret == -1) { + op_errno = ENOMEM; + goto err; + } + + LOCK (&ctx->lock); + { + if (local->loc.inode->ia_type == IA_IFDIR ) { + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, + (void **) &size); + if (ret < 0) { + op_errno = EINVAL; + goto unlock; + } + + ctx->size = ntoh64 (*size); + } else + ctx->size = buf->ia_blocks * 512; + + size_int = ctx->size; + } +unlock: + UNLOCK (&ctx->lock); + + if (ret < 0) { + goto err; + } + + ret = dict_get_bin (dict, contri_key, (void **) &contri); + + LOCK (&contribution->lock); + { + if (ret < 0) + contribution->contribution = 0; + else + contribution->contribution = ntoh64 (*contri); + + contri_int = contribution->contribution; + } + UNLOCK (&contribution->lock); + + gf_log (this->name, GF_LOG_DEBUG, "%s %"PRId64 "%"PRId64, + local->loc.path, size_int, contri_int); + + local->delta = size_int - contri_int; + + if (local->delta == 0) { + mq_mark_undirty (frame, NULL, this, 0, 0, NULL, NULL); + return 0; + } + + newdict = dict_new (); + if (newdict == NULL) { + op_errno = ENOMEM; + ret = -1; + goto err; + } + + QUOTA_ALLOC_OR_GOTO (delta, int64_t, ret, err); + + *delta = hton64 (local->delta); + + ret = dict_set_bin (newdict, contri_key, delta, 8); + if (ret < 0) { + op_errno = -ret; + ret = -1; + goto err; + } + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, + mq_update_parent_size, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, + &local->loc, + GF_XATTROP_ADD_ARRAY64, + newdict, NULL); + ret = 0; + +err: + if (op_ret == -1 || ret < 0) { + local->err = op_errno; + + mq_release_parent_lock (frame, NULL, this, 0, 0, NULL); + } + + if (newdict) + dict_unref (newdict); + + return 0; +} + +int32_t +mq_fetch_child_size_and_contri (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + int32_t ret = -1; + char contri_key [512] = {0, }; + dict_t *newdict = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + + local = frame->local; + + if (op_ret == -1) { + gf_log (this->name, (op_errno == ENOENT) ? GF_LOG_DEBUG + : GF_LOG_WARNING, + "couldnt mark inode corresponding to path (%s) dirty " + "(%s)", local->parent_loc.path, strerror (op_errno)); + goto err; + } + + VALIDATE_OR_GOTO (local->ctx, err); + VALIDATE_OR_GOTO (local->contri, err); + + gf_log (this->name, GF_LOG_DEBUG, "%s marked dirty", local->parent_loc.path); + + //update parent ctx + ret = mq_inode_ctx_get (local->parent_loc.inode, this, &ctx); + if (ret == -1) { + op_errno = EINVAL; + goto err; + } + + LOCK (&ctx->lock); + { + ctx->dirty = 1; + } + UNLOCK (&ctx->lock); + + newdict = dict_new (); + if (newdict == NULL) { + op_errno = ENOMEM; + goto err; + } + + if (local->loc.inode->ia_type == IA_IFDIR) { + ret = dict_set_int64 (newdict, QUOTA_SIZE_KEY, 0); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "dict_set failed."); + goto err; + } + } + + GET_CONTRI_KEY (contri_key, local->contri->gfid, ret); + if (ret < 0) { + op_errno = ENOMEM; + goto err; + } + + ret = dict_set_int64 (newdict, contri_key, 0); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "dict_set failed."); + goto err; + } + + mq_set_ctx_updation_status (local->ctx, _gf_false); + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND (frame, mq_update_inode_contribution, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, &local->loc, newdict); + + ret = 0; + +err: + if ((op_ret == -1) || (ret < 0)) { + local->err = op_errno; + + mq_set_ctx_updation_status (local->ctx, _gf_false); + + mq_release_parent_lock (frame, NULL, this, 0, 0, NULL); + } + + if (newdict) + dict_unref (newdict); + + return 0; +} + +int32_t +mq_markdirty (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = -1; + dict_t *dict = NULL; + quota_local_t *local = NULL; + + local = frame->local; + + if (op_ret == -1){ + gf_log (this->name, (op_errno == ENOENT) ? GF_LOG_DEBUG + : GF_LOG_WARNING, "acquiring locks failed on %s (%s)", + local->parent_loc.path, strerror (op_errno)); + + local->err = op_errno; + + mq_set_ctx_updation_status (local->ctx, _gf_false); + + mq_inodelk_cbk (frame, NULL, this, 0, 0, NULL); + + return 0; + } + + gf_log (this->name, GF_LOG_TRACE, + "inodelk succeeded on %s", local->parent_loc.path); + + dict = dict_new (); + if (!dict) { + ret = -1; + goto err; + } + + ret = dict_set_int8 (dict, QUOTA_DIRTY_KEY, 1); + if (ret == -1) + goto err; + + uuid_copy (local->parent_loc.gfid, + local->parent_loc.inode->gfid); + GF_UUID_ASSERT (local->parent_loc.gfid); + + STACK_WIND (frame, mq_fetch_child_size_and_contri, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, + &local->parent_loc, dict, 0, NULL); + + ret = 0; +err: + if (ret == -1) { + local->err = 1; + + mq_set_ctx_updation_status (local->ctx, _gf_false); + + mq_release_parent_lock (frame, NULL, this, 0, 0, NULL); + } + + if (dict) + dict_unref (dict); + + return 0; +} + + +int32_t +mq_get_lock_on_parent (call_frame_t *frame, xlator_t *this) +{ + struct gf_flock lock = {0, }; + quota_local_t *local = NULL; + + GF_VALIDATE_OR_GOTO ("marker", frame, fr_destroy); + + local = frame->local; + gf_log (this->name, GF_LOG_DEBUG, "taking lock on %s", + local->parent_loc.path); + + if (local->parent_loc.inode == NULL) { + gf_log (this->name, GF_LOG_DEBUG, + "parent inode is not valid, aborting " + "transaction."); + goto fr_destroy; + } + + lock.l_len = 0; + lock.l_start = 0; + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + + STACK_WIND (frame, + mq_markdirty, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->parent_loc, F_SETLKW, &lock, NULL); + + return 0; + +fr_destroy: + QUOTA_STACK_DESTROY (frame, this); + + return -1; +} + + +int +mq_start_quota_txn (xlator_t *this, loc_t *loc, + quota_inode_ctx_t *ctx, + inode_contribution_t *contri) +{ + int32_t ret = -1; + call_frame_t *frame = NULL; + quota_local_t *local = NULL; + + frame = create_frame (this, this->ctx->pool); + if (frame == NULL) + goto err; + + mq_assign_lk_owner (this, frame); + + local = mq_local_new (); + if (local == NULL) + goto fr_destroy; + + frame->local = local; + + ret = mq_loc_copy (&local->loc, loc); + if (ret < 0) + goto fr_destroy; + + ret = mq_inode_loc_fill (NULL, local->loc.parent, + &local->parent_loc); + if (ret < 0) + goto fr_destroy; + + local->ctx = ctx; + local->contri = contri; + + ret = mq_get_lock_on_parent (frame, this); + if (ret == -1) + goto err; + + return 0; + +fr_destroy: + QUOTA_STACK_DESTROY (frame, this); +err: + mq_set_ctx_updation_status (ctx, _gf_false); + + return -1; +} + + +int +mq_initiate_quota_txn (xlator_t *this, loc_t *loc) +{ + int32_t ret = -1; + gf_boolean_t status = _gf_false; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", loc, out); + GF_VALIDATE_OR_GOTO ("marker", loc->inode, out); + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret == -1) { + gf_log (this->name, GF_LOG_WARNING, + "inode ctx get failed, aborting quota txn"); + ret = -1; + goto out; + } + + contribution = mq_get_contribution_node (loc->parent, ctx); + if (contribution == NULL) + goto out; + + /* To improve performance, donot start another transaction + * if one is already in progress for same inode + */ + status = _gf_true; + + ret = mq_test_and_set_ctx_updation_status (ctx, &status); + if (ret < 0) + goto out; + + if (status == _gf_false) { + mq_start_quota_txn (this, loc, ctx, contribution); + } + + ret = 0; +out: + return ret; +} + + +/* int32_t */ +/* validate_inode_size_contribution (xlator_t *this, loc_t *loc, int64_t size, */ +/* int64_t contribution) */ +/* { */ +/* if (size != contribution) { */ +/* mq_initiate_quota_txn (this, loc); */ +/* } */ + +/* return 0; */ +/* } */ + + +int32_t +mq_inspect_directory_xattr (xlator_t *this, + loc_t *loc, + dict_t *dict, + struct iatt buf) +{ + int32_t ret = 0; + int8_t dirty = -1; + int64_t *size = NULL, size_int = 0; + int64_t *contri = NULL, contri_int = 0; + char contri_key [512] = {0, }; + gf_boolean_t not_root = _gf_false; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret < 0) { + ctx = mq_inode_ctx_new (loc->inode, this); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "mq_inode_ctx_new failed"); + ret = -1; + goto err; + } + } + + if (strcmp (loc->path, "/") != 0) { + contribution = mq_add_new_contribution_node (this, ctx, loc); + if (contribution == NULL) { + if (!uuid_is_null (loc->inode->gfid)) + gf_log (this->name, GF_LOG_WARNING, + "cannot add a new contribution node"); + ret = -1; + goto err; + } + } + + ret = dict_get_bin (dict, QUOTA_SIZE_KEY, (void **) &size); + if (ret < 0) + goto out; + + ret = dict_get_int8 (dict, QUOTA_DIRTY_KEY, &dirty); + if (ret < 0) + goto out; + + if (strcmp (loc->path, "/") != 0) { + not_root = _gf_true; + + GET_CONTRI_KEY (contri_key, contribution->gfid, ret); + if (ret < 0) + goto out; + + ret = dict_get_bin (dict, contri_key, (void **) &contri); + if (ret < 0) + goto out; + + LOCK (&contribution->lock); + { + contribution->contribution = ntoh64 (*contri); + contri_int = contribution->contribution; + } + UNLOCK (&contribution->lock); + } + + LOCK (&ctx->lock); + { + ctx->size = ntoh64 (*size); + ctx->dirty = dirty; + size_int = ctx->size; + } + UNLOCK (&ctx->lock); + + gf_log (this->name, GF_LOG_DEBUG, "size=%"PRId64 + " contri=%"PRId64, size_int, contri_int); + + if (dirty) { + ret = mq_update_dirty_inode (this, loc, ctx, contribution); + } + + if ((!dirty || ret == 0) && (not_root == _gf_true) && + (size_int != contri_int)) { + mq_initiate_quota_txn (this, loc); + } + + ret = 0; +out: + if (ret) + mq_set_inode_xattr (this, loc); +err: + return ret; +} + +int32_t +mq_inspect_file_xattr (xlator_t *this, + loc_t *loc, + dict_t *dict, + struct iatt buf) +{ + int32_t ret = -1; + uint64_t contri_int = 0, size = 0; + int64_t *contri_ptr = NULL; + char contri_key [512] = {0, }; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret < 0) { + ctx = mq_inode_ctx_new (loc->inode, this); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "mq_inode_ctx_new failed"); + ret = -1; + goto out; + } + } + + contribution = mq_add_new_contribution_node (this, ctx, loc); + if (contribution == NULL) + goto out; + + LOCK (&ctx->lock); + { + ctx->size = 512 * buf.ia_blocks; + size = ctx->size; + } + UNLOCK (&ctx->lock); + + list_for_each_entry (contribution, &ctx->contribution_head, + contri_list) { + GET_CONTRI_KEY (contri_key, contribution->gfid, ret); + if (ret < 0) + continue; + + ret = dict_get_bin (dict, contri_key, (void **) &contri_int); + if (ret == 0) { + contri_ptr = (int64_t *)(unsigned long)contri_int; + + LOCK (&contribution->lock); + { + contribution->contribution = ntoh64 (*contri_ptr); + contri_int = contribution->contribution; + } + UNLOCK (&contribution->lock); + + gf_log (this->name, GF_LOG_DEBUG, + "size=%"PRId64 " contri=%"PRId64, size, contri_int); + + if (size != contri_int) { + mq_initiate_quota_txn (this, loc); + } + } else + mq_initiate_quota_txn (this, loc); + } + +out: + return ret; +} + +int32_t +mq_xattr_state (xlator_t *this, + loc_t *loc, + dict_t *dict, + struct iatt buf) +{ + if (buf.ia_type == IA_IFREG || + buf.ia_type == IA_IFLNK) { + mq_inspect_file_xattr (this, loc, dict, buf); + } else if (buf.ia_type == IA_IFDIR) + mq_inspect_directory_xattr (this, loc, dict, buf); + + return 0; +} + +int32_t +mq_req_xattr (xlator_t *this, + loc_t *loc, + dict_t *dict) +{ + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", dict, out); + + if (!loc) + goto set_size; + + //if not "/" then request contribution + if (strcmp (loc->path, "/") == 0) + goto set_size; + + ret = mq_dict_set_contribution (this, dict, loc); + if (ret == -1) + goto out; + +set_size: + ret = dict_set_uint64 (dict, QUOTA_SIZE_KEY, 0); + if (ret < 0) { + ret = -1; + goto out; + } + + ret = dict_set_int8 (dict, QUOTA_DIRTY_KEY, 0); + if (ret < 0) { + ret = -1; + goto out; + } + + ret = 0; + +out: + return ret; +} + + +int32_t +mq_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + QUOTA_STACK_DESTROY (frame, this); + + return 0; +} + +int32_t +_mq_inode_remove_done (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = 0; + char contri_key [512] = {0, }; + quota_local_t *local = NULL; + + local = (quota_local_t *) frame->local; + + if (op_ret == -1 || local->err == -1) { + mq_removexattr_cbk (frame, NULL, this, -1, 0, NULL); + return 0; + } + + frame->local = NULL; + + if (local->hl_count > 1) { + GET_CONTRI_KEY (contri_key, local->contri->gfid, ret); + + STACK_WIND (frame, mq_removexattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, + &local->loc, contri_key, NULL); + ret = 0; + } else { + mq_removexattr_cbk (frame, NULL, this, 0, 0, NULL); + } + + if (strcmp (local->parent_loc.path, "/") != 0) { + ret = mq_get_parent_inode_local (this, local); + if (ret < 0) + goto out; + + mq_start_quota_txn (this, &local->loc, local->ctx, local->contri); + } +out: + mq_local_unref (this, local); + + return 0; +} + +int32_t +mq_inode_remove_done (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, + dict_t *xdata) +{ + int32_t ret = -1; + struct gf_flock lock = {0, }; + quota_inode_ctx_t *ctx = NULL; + quota_local_t *local = NULL; + int64_t contribution = 0; + + local = frame->local; + if (op_ret == -1) + local->err = -1; + + ret = mq_inode_ctx_get (local->parent_loc.inode, this, &ctx); + + LOCK (&local->contri->lock); + { + contribution = local->contri->contribution; + } + UNLOCK (&local->contri->lock); + + if (contribution == local->size) { + if (ret == 0) { + LOCK (&ctx->lock); + { + ctx->size -= contribution; + } + UNLOCK (&ctx->lock); + + LOCK (&local->contri->lock); + { + local->contri->contribution = 0; + } + UNLOCK (&local->contri->lock); + } + } + + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + STACK_WIND (frame, + _mq_inode_remove_done, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->parent_loc, + F_SETLKW, &lock, NULL); + return 0; +} + +int32_t +mq_reduce_parent_size_xattr (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = -1; + int64_t *size = NULL; + dict_t *dict = NULL; + quota_local_t *local = NULL; + + local = frame->local; + if (op_ret == -1) { + gf_log (this->name, GF_LOG_WARNING, + "inodelk set failed on %s", local->parent_loc.path); + QUOTA_STACK_DESTROY (frame, this); + return 0; + } + + VALIDATE_OR_GOTO (local->contri, err); + + dict = dict_new (); + if (dict == NULL) { + ret = -1; + goto err; + } + + QUOTA_ALLOC_OR_GOTO (size, int64_t, ret, err); + + *size = hton64 (-local->size); + + ret = dict_set_bin (dict, QUOTA_SIZE_KEY, size, 8); + if (ret < 0) + goto err; + + uuid_copy (local->parent_loc.gfid, + local->parent_loc.inode->gfid); + GF_UUID_ASSERT (local->parent_loc.gfid); + + STACK_WIND (frame, mq_inode_remove_done, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, &local->parent_loc, + GF_XATTROP_ADD_ARRAY64, dict, NULL); + dict_unref (dict); + return 0; + +err: + local->err = 1; + mq_inode_remove_done (frame, NULL, this, -1, 0, NULL, NULL); + if (dict) + dict_unref (dict); + return 0; +} + +int32_t +mq_reduce_parent_size (xlator_t *this, loc_t *loc, int64_t contri) +{ + int32_t ret = -1; + struct gf_flock lock = {0,}; + call_frame_t *frame = NULL; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", loc, out); + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret < 0) + goto out; + + contribution = mq_get_contribution_node (loc->parent, ctx); + if (contribution == NULL) + goto out; + + local = mq_local_new (); + if (local == NULL) { + ret = -1; + goto out; + } + + if (contri >= 0) { + local->size = contri; + } else { + LOCK (&contribution->lock); + { + local->size = contribution->contribution; + } + UNLOCK (&contribution->lock); + } + + if (local->size == 0) { + ret = 0; + goto out; + } + + ret = mq_loc_copy (&local->loc, loc); + if (ret < 0) + goto out; + + local->ctx = ctx; + local->contri = contribution; + + ret = mq_inode_loc_fill (NULL, loc->parent, &local->parent_loc); + if (ret < 0) + goto out; + + frame = create_frame (this, this->ctx->pool); + if (!frame) { + ret = -1; + goto out; + } + + mq_assign_lk_owner (this, frame); + + frame->local = local; + + lock.l_len = 0; + lock.l_start = 0; + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + + if (local->parent_loc.inode == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_DEBUG, + "Inode is NULL, so can't stackwind."); + goto out; + } + + STACK_WIND (frame, + mq_reduce_parent_size_xattr, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->parent_loc, F_SETLKW, &lock, NULL); + local = NULL; + ret = 0; + +out: + if (local != NULL) + mq_local_unref (this, local); + + return ret; +} + + +int32_t +init_quota_priv (xlator_t *this) +{ + return 0; +} + + +int32_t +mq_rename_update_newpath (xlator_t *this, loc_t *loc) +{ + int32_t ret = -1; + quota_inode_ctx_t *ctx = NULL; + inode_contribution_t *contribution = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", loc, out); + GF_VALIDATE_OR_GOTO ("marker", loc->inode, out); + + ret = mq_inode_ctx_get (loc->inode, this, &ctx); + if (ret < 0) + goto out; + + contribution = mq_add_new_contribution_node (this, ctx, loc); + if (contribution == NULL) { + ret = -1; + goto out; + } + + mq_initiate_quota_txn (this, loc); +out: + return ret; +} + +int32_t +mq_forget (xlator_t *this, quota_inode_ctx_t *ctx) +{ + inode_contribution_t *contri = NULL; + inode_contribution_t *next = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO ("marker", ctx, out); + + list_for_each_entry_safe (contri, next, &ctx->contribution_head, + contri_list) { + list_del (&contri->contri_list); + GF_FREE (contri); + } + + LOCK_DESTROY (&ctx->lock); + GF_FREE (ctx); +out: + return 0; +} diff --git a/xlators/features/marker/src/marker-quota.h b/xlators/features/marker/src/marker-quota.h new file mode 100644 index 000000000..385760ac4 --- /dev/null +++ b/xlators/features/marker/src/marker-quota.h @@ -0,0 +1,130 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _MARKER_QUOTA_H +#define _MARKER_QUOTA_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "xlator.h" +#include "marker-mem-types.h" + +#define QUOTA_XATTR_PREFIX "trusted.glusterfs" +#define QUOTA_DIRTY_KEY "trusted.glusterfs.quota.dirty" + +#define CONTRIBUTION "contri" +#define CONTRI_KEY_MAX 512 +#define READDIR_BUF 4096 + + +#define QUOTA_STACK_DESTROY(_frame, _this) \ + do { \ + quota_local_t *_local = NULL; \ + _local = _frame->local; \ + _frame->local = NULL; \ + STACK_DESTROY (_frame->root); \ + mq_local_unref (_this, _local); \ + } while (0) + + +#define QUOTA_ALLOC(var, type, ret) \ + do { \ + ret = 0; \ + var = GF_CALLOC (sizeof (type), 1, \ + gf_marker_mt_##type); \ + if (!var) { \ + gf_log ("", GF_LOG_ERROR, \ + "out of memory"); \ + ret = -1; \ + } \ + } while (0); + +#define QUOTA_ALLOC_OR_GOTO(var, type, ret, label) \ + do { \ + var = GF_CALLOC (sizeof (type), 1, \ + gf_marker_mt_##type); \ + if (!var) { \ + gf_log ("", GF_LOG_ERROR, \ + "out of memory"); \ + ret = -1; \ + goto label; \ + } \ + ret = 0; \ + } while (0); + +#define GET_CONTRI_KEY(var, _gfid, _ret) \ + do { \ + char _gfid_unparsed[40]; \ + uuid_unparse (_gfid, _gfid_unparsed); \ + _ret = snprintf (var, CONTRI_KEY_MAX, QUOTA_XATTR_PREFIX \ + ".%s.%s." CONTRIBUTION, "quota", \ + _gfid_unparsed); \ + } while (0); + +#define QUOTA_SAFE_INCREMENT(lock, var) \ + do { \ + LOCK (lock); \ + var ++; \ + UNLOCK (lock); \ + } while (0) + +struct quota_inode_ctx { + int64_t size; + int8_t dirty; + gf_boolean_t updation_status; + gf_lock_t lock; + struct list_head contribution_head; +}; +typedef struct quota_inode_ctx quota_inode_ctx_t; + +struct inode_contribution { + struct list_head contri_list; + int64_t contribution; + uuid_t gfid; + gf_lock_t lock; +}; +typedef struct inode_contribution inode_contribution_t; + +int32_t +mq_get_lock_on_parent (call_frame_t *, xlator_t *); + +int32_t +mq_req_xattr (xlator_t *, loc_t *, dict_t *); + +int32_t +init_quota_priv (xlator_t *); + +int32_t +mq_xattr_state (xlator_t *, loc_t *, dict_t *, struct iatt); + +int32_t +mq_set_inode_xattr (xlator_t *, loc_t *); + +int +mq_initiate_quota_txn (xlator_t *, loc_t *); + +int32_t +mq_dirty_inode_readdir (call_frame_t *, void *, xlator_t *, + int32_t, int32_t, fd_t *, dict_t *); + +int32_t +mq_reduce_parent_size (xlator_t *, loc_t *, int64_t); + +int32_t +mq_rename_update_newpath (xlator_t *, loc_t *); + +int32_t +mq_inspect_file_xattr (xlator_t *this, loc_t *loc, dict_t *dict, struct iatt buf); + +int32_t +mq_forget (xlator_t *, quota_inode_ctx_t *); +#endif diff --git a/xlators/features/marker/src/marker.c b/xlators/features/marker/src/marker.c new file mode 100644 index 000000000..6a2c85691 --- /dev/null +++ b/xlators/features/marker/src/marker.c @@ -0,0 +1,2862 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "xlator.h" +#include "defaults.h" +#include "libxlator.h" +#include "marker.h" +#include "marker-mem-types.h" +#include "marker-quota.h" +#include "marker-quota-helper.h" +#include "marker-common.h" +#include "byte-order.h" + +#define _GF_UID_GID_CHANGED 1 + +void +fini (xlator_t *this); + +int32_t +marker_start_setxattr (call_frame_t *, xlator_t *); + +marker_local_t * +marker_local_ref (marker_local_t *local) +{ + GF_VALIDATE_OR_GOTO ("marker", local, err); + + LOCK (&local->lock); + { + local->ref++; + } + UNLOCK (&local->lock); + + return local; +err: + return NULL; +} + +int +marker_loc_fill (loc_t *loc, inode_t *inode, inode_t *parent, char *path) +{ + int ret = -1; + + if (!loc) + return ret; + + if (inode) { + loc->inode = inode_ref (inode); + if (uuid_is_null (loc->gfid)) { + uuid_copy (loc->gfid, loc->inode->gfid); + } + } + + if (parent) + loc->parent = inode_ref (parent); + + if (path) { + loc->path = gf_strdup (path); + if (!loc->path) { + gf_log ("loc fill", GF_LOG_ERROR, "strdup failed"); + goto loc_wipe; + } + + loc->name = strrchr (loc->path, '/'); + if (loc->name) + loc->name++; + } + + ret = 0; +loc_wipe: + if (ret < 0) + loc_wipe (loc); + + return ret; +} + +int +marker_inode_loc_fill (inode_t *inode, loc_t *loc) +{ + char *resolvedpath = NULL; + int ret = -1; + inode_t *parent = NULL; + + if ((!inode) || (!loc)) + return ret; + + parent = inode_parent (inode, NULL, NULL); + + ret = inode_path (inode, NULL, &resolvedpath); + if (ret < 0) + goto err; + + ret = marker_loc_fill (loc, inode, parent, resolvedpath); + if (ret < 0) + goto err; + +err: + if (parent) + inode_unref (parent); + + GF_FREE (resolvedpath); + + return ret; +} + +int32_t +marker_trav_parent (marker_local_t *local) +{ + int32_t ret = 0; + loc_t loc = {0, }; + inode_t *parent = NULL; + int8_t need_unref = 0; + + if (!local->loc.parent) { + parent = inode_parent (local->loc.inode, NULL, NULL); + if (parent) + need_unref = 1; + } else + parent = local->loc.parent; + + ret = marker_inode_loc_fill (parent, &loc); + + if (ret < 0) { + ret = -1; + goto out; + } + + loc_wipe (&local->loc); + + local->loc = loc; +out: + if (need_unref) + inode_unref (parent); + + return ret; +} + +int32_t +marker_error_handler (xlator_t *this, marker_local_t *local, int32_t op_errno) +{ + marker_conf_t *priv = NULL; + const char *path = NULL; + + priv = (marker_conf_t *) this->private; + path = local + ? (local->loc.path + ? local->loc.path : uuid_utoa(local->loc.gfid)) + : "<nul>"; + + gf_log (this->name, GF_LOG_CRITICAL, + "Indexing gone corrupt at %s (reason: %s)." + " Geo-replication slave content needs to be revalidated", + path, strerror (op_errno)); + unlink (priv->timestamp_file); + + return 0; +} + +int32_t +marker_local_unref (marker_local_t *local) +{ + int32_t var = 0; + + if (local == NULL) + return -1; + + LOCK (&local->lock); + { + var = --local->ref; + } + UNLOCK (&local->lock); + + if (var != 0) + goto out; + + loc_wipe (&local->loc); + loc_wipe (&local->parent_loc); + if (local->xdata) + dict_unref (local->xdata); + + if (local->oplocal) { + marker_local_unref (local->oplocal); + local->oplocal = NULL; + } + mem_put (local); +out: + return 0; +} + +int32_t +stat_stampfile (xlator_t *this, marker_conf_t *priv, + struct volume_mark **status) +{ + struct stat buf = {0, }; + struct volume_mark *vol_mark = NULL; + + vol_mark = GF_CALLOC (sizeof (struct volume_mark), 1, + gf_marker_mt_volume_mark); + + vol_mark->major = 1; + vol_mark->minor = 0; + + GF_ASSERT (sizeof (priv->volume_uuid_bin) == 16); + memcpy (vol_mark->uuid, priv->volume_uuid_bin, 16); + + if (stat (priv->timestamp_file, &buf) != -1) { + vol_mark->retval = 0; + vol_mark->sec = htonl (buf.st_ctime); + vol_mark->usec = htonl (ST_CTIM_NSEC (&buf)/1000); + } else + vol_mark->retval = 1; + + *status = vol_mark; + + return 0; +} + +int32_t +marker_getxattr_stampfile_cbk (call_frame_t *frame, xlator_t *this, + const char *name, struct volume_mark *vol_mark, + dict_t *xdata) +{ + int32_t ret = -1; + dict_t *dict = NULL; + + if (vol_mark == NULL){ + STACK_UNWIND_STRICT (getxattr, frame, -1, ENOMEM, NULL, NULL); + + goto out; + } + + dict = dict_new (); + + ret = dict_set_bin (dict, (char *)name, vol_mark, + sizeof (struct volume_mark)); + if (ret) + gf_log (this->name, GF_LOG_WARNING, "failed to set key %s", + name); + + STACK_UNWIND_STRICT (getxattr, frame, 0, 0, dict, xdata); + + dict_unref (dict); +out: + return 0; +} + +int32_t +call_from_special_client (call_frame_t *frame, xlator_t *this, const char *name) +{ + struct volume_mark *vol_mark = NULL; + marker_conf_t *priv = NULL; + gf_boolean_t ret = _gf_true; + + priv = (marker_conf_t *)this->private; + + if (frame->root->pid != GF_CLIENT_PID_GSYNCD || name == NULL || + strcmp (name, MARKER_XATTR_PREFIX "." VOLUME_MARK) != 0) { + ret = _gf_false; + goto out; + } + + stat_stampfile (this, priv, &vol_mark); + + marker_getxattr_stampfile_cbk (frame, this, name, vol_mark, NULL); +out: + return ret; +} + +int32_t +marker_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, + dict_t *xdata) +{ + if (cookie) { + gf_log (this->name, GF_LOG_DEBUG, + "Filtering the quota extended attributes"); + + dict_foreach_fnmatch (dict, "trusted.glusterfs.quota*", + marker_filter_quota_xattr, NULL); + } + + STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict, xdata); + return 0; +} + +int32_t +marker_getxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + gf_boolean_t ret = _gf_false; + marker_conf_t *priv = NULL; + unsigned long cookie = 0; + + priv = this->private; + + if (priv == NULL || (priv->feature_enabled & GF_XTIME) == 0) + goto wind; + + gf_log (this->name, GF_LOG_DEBUG, "USER:PID = %d", frame->root->pid); + + ret = call_from_special_client (frame, this, name); +wind: + if (ret == _gf_false) { + if (name == NULL) { + /* Signifies that marker translator + * has to filter the quota's xattr's, + * this is to prevent afr from performing + * self healing on marker-quota xattrs' + */ + cookie = 1; + } + STACK_WIND_COOKIE (frame, marker_getxattr_cbk, (void *)cookie, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, loc, + name, xdata); + } + + return 0; +} + + +int32_t +marker_setxattr_done (call_frame_t *frame) +{ + marker_local_t *local = NULL; + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_DESTROY (frame->root); + + marker_local_unref (local); + + return 0; +} + +int +marker_specific_setxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + int32_t ret = 0; + int32_t done = 0; + marker_local_t *local = NULL; + + local = (marker_local_t*) frame->local; + + if (op_ret == -1 && op_errno == ENOSPC) { + marker_error_handler (this, local, op_errno); + done = 1; + goto out; + } + + if (local) { + if (local->loc.path && strcmp (local->loc.path, "/") == 0) { + done = 1; + goto out; + } + if (__is_root_gfid (local->loc.gfid)) { + done = 1; + goto out; + } + } + + ret = marker_trav_parent (local); + + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, "Error occurred " + "while traversing to the parent, stopping marker"); + + done = 1; + + goto out; + } + + marker_start_setxattr (frame, this); + +out: + if (done) { + marker_setxattr_done (frame); + } + + return 0; +} + +int32_t +marker_start_setxattr (call_frame_t *frame, xlator_t *this) +{ + int32_t ret = -1; + dict_t *dict = NULL; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + local = (marker_local_t*) frame->local; + + if (!local) + goto out; + + dict = dict_new (); + + if (!dict) + goto out; + + if (local->loc.inode && uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + ret = dict_set_static_bin (dict, priv->marker_xattr, + (void *)local->timebuf, 8); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, + "failed to set marker xattr (%s)", local->loc.path); + goto out; + } + + STACK_WIND (frame, marker_specific_setxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, &local->loc, dict, 0, + NULL); + + ret = 0; +out: + if (dict) + dict_unref (dict); + + return ret; +} + +void +marker_gettimeofday (marker_local_t *local) +{ + struct timeval tv = {0, }; + + gettimeofday (&tv, NULL); + + local->timebuf [0] = htonl (tv.tv_sec); + local->timebuf [1] = htonl (tv.tv_usec); + + return; +} + +int32_t +marker_create_frame (xlator_t *this, marker_local_t *local) +{ + call_frame_t *frame = NULL; + + frame = create_frame (this, this->ctx->pool); + + frame->local = (void *) local; + + marker_start_setxattr (frame, this); + + return 0; +} + +int32_t +marker_xtime_update_marks (xlator_t *this, marker_local_t *local) +{ + marker_conf_t *priv = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO (this->name, local, out); + + priv = this->private; + + if ((local->pid == GF_CLIENT_PID_GSYNCD + && !(priv->feature_enabled & GF_XTIME_GSYNC_FORCE)) + || (local->pid == GF_CLIENT_PID_DEFRAG)) + goto out; + + marker_gettimeofday (local); + + marker_local_ref (local); + + marker_create_frame (this, local); +out: + return 0; +} + + +int32_t +marker_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "error occurred " + "while Creating a file %s", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (mkdir, frame, op_ret, op_errno, inode, + buf, preparent, postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_set_inode_xattr (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); + +out: + marker_local_unref (local); + + return 0; +} + +int +marker_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + mode_t umask, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_mkdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mkdir, loc, mode, umask, xdata); + + return 0; +err: + STACK_UNWIND_STRICT (mkdir, frame, -1, ENOMEM, NULL, + NULL, NULL, NULL, NULL); + return 0; +} + + +int32_t +marker_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "error occurred " + "while Creating a file %s", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, fd, inode, buf, + preparent, postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_set_inode_xattr (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); + +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_create_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->create, loc, flags, mode, umask, + fd, xdata); + return 0; +err: + STACK_UNWIND_STRICT (create, frame, -1, ENOMEM, NULL, NULL, NULL, NULL, + NULL, NULL); + + return 0; +} + + +int32_t +marker_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "error occurred " + "while write, %s", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); + +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_writev (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + struct iovec *vector, + int32_t count, + off_t offset, uint32_t flags, + struct iobref *iobref, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_writev_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->writev, fd, vector, count, offset, + flags, iobref, xdata); + return 0; +err: + STACK_UNWIND_STRICT (writev, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_rmdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "error occurred " + "rmdir %s", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (rmdir, frame, op_ret, op_errno, preparent, + postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_reduce_parent_size (this, &local->loc, -1); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags, + dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_rmdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rmdir, loc, flags, xdata); + return 0; +err: + STACK_UNWIND_STRICT (rmdir, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, + "%s occurred in unlink", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno, preparent, + postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if ((priv->feature_enabled & GF_QUOTA) && (local->ia_nlink == 1)) + mq_reduce_parent_size (this, &local->loc, -1); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + + +int32_t +marker_unlink_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *buf, + dict_t *xdata) +{ + marker_local_t *local = NULL; + + local = frame->local; + if (op_ret < 0) { + goto err; + } + + if (local == NULL) { + op_errno = EINVAL; + goto err; + } + + local->ia_nlink = buf->ia_nlink; + + STACK_WIND (frame, marker_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, &local->loc, local->xflag, + local->xdata); + return 0; +err: + frame->local = NULL; + STACK_UNWIND_STRICT (unlink, frame, -1, op_errno, NULL, NULL, NULL); + marker_local_unref (local); + return 0; +} + + +int32_t +marker_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, + dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto unlink_wind; + + local = mem_get0 (this->local_pool); + local->xflag = xflag; + if (xdata) + local->xdata = dict_ref (xdata); + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; + + if (uuid_is_null (loc->gfid) && loc->inode) + uuid_copy (loc->gfid, loc->inode->gfid); + + STACK_WIND (frame, marker_unlink_stat_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->stat, loc, xdata); + return 0; + +unlink_wind: + STACK_WIND (frame, marker_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); + return 0; +err: + frame->local = NULL; + STACK_UNWIND_STRICT (unlink, frame, -1, ENOMEM, NULL, NULL, NULL); + marker_local_unref (local); + return 0; +} + + +int32_t +marker_link_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "linking a file ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (link, frame, op_ret, op_errno, inode, buf, + preparent, postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc, + dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, newloc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_link_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->link, oldloc, newloc, xdata); + return 0; +err: + STACK_UNWIND_STRICT (link, frame, -1, ENOMEM, NULL, NULL, NULL, NULL, + NULL); + + return 0; +} + + +int32_t +marker_rename_done (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + loc_t newloc = {0, }; + marker_conf_t *priv = NULL; + + local = frame->local; + oplocal = local->oplocal; + + priv = this->private; + + frame->local = NULL; + + if (op_ret < 0) { + if (local->err == 0) { + local->err = op_errno; + } + + gf_log (this->name, GF_LOG_WARNING, + "inodelk (UNLOCK) failed on path:%s (gfid:%s) (%s)", + local->parent_loc.path, + uuid_utoa (local->parent_loc.inode->gfid), + strerror (op_errno)); + } + + if (local->stub != NULL) { + call_resume (local->stub); + local->stub = NULL; + } else if (local->err != 0) { + STACK_UNWIND_STRICT (rename, frame, -1, local->err, NULL, NULL, + NULL, NULL, NULL, NULL); + } + + mq_reduce_parent_size (this, &oplocal->loc, oplocal->contribution); + + if (local->loc.inode != NULL) { + mq_reduce_parent_size (this, &local->loc, local->contribution); + } + + newloc.inode = inode_ref (oplocal->loc.inode); + newloc.path = gf_strdup (local->loc.path); + newloc.name = strrchr (newloc.path, '/'); + if (newloc.name) + newloc.name++; + newloc.parent = inode_ref (local->loc.parent); + + mq_rename_update_newpath (this, &newloc); + + loc_wipe (&newloc); + + if (priv->feature_enabled & GF_XTIME) { + //update marks on oldpath + uuid_copy (local->loc.gfid, oplocal->loc.inode->gfid); + marker_xtime_update_marks (this, oplocal); + marker_xtime_update_marks (this, local); + } + + marker_local_unref (local); + marker_local_unref (oplocal); + return 0; +} + + +int32_t +marker_rename_release_newp_lock (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + struct gf_flock lock = {0, }; + + local = frame->local; + oplocal = local->oplocal; + + if (op_ret < 0) { + if (local->err == 0) { + local->err = op_errno; + } + + gf_log (this->name, GF_LOG_WARNING, + "inodelk (UNLOCK) failed on %s (gfid:%s) (%s)", + oplocal->parent_loc.path, + uuid_utoa (oplocal->parent_loc.inode->gfid), + strerror (op_errno)); + } + + if (local->next_lock_on == NULL) { + marker_rename_done (frame, NULL, this, 0, 0, NULL); + goto out; + } + + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + STACK_WIND (frame, + marker_rename_done, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &local->parent_loc, F_SETLKW, &lock, NULL); + +out: + return 0; +} + + +int32_t +marker_rename_release_oldp_lock (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + struct gf_flock lock = {0, }; + + local = frame->local; + oplocal = local->oplocal; + + if ((op_ret < 0) && (op_errno != ENOATTR)) { + local->err = op_errno; + } + + //Reset frame uid and gid if set. + if (cookie == (void *) _GF_UID_GID_CHANGED) + MARKER_RESET_UID_GID (frame, frame->root, local); + + lock.l_type = F_UNLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + lock.l_pid = 0; + + STACK_WIND (frame, + marker_rename_release_newp_lock, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, &oplocal->parent_loc, F_SETLKW, &lock, NULL); + return 0; +} + + +int32_t +marker_rename_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *buf, + struct iatt *preoldparent, struct iatt *postoldparent, + struct iatt *prenewparent, struct iatt *postnewparent, + dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + marker_local_t *oplocal = NULL; + call_stub_t *stub = NULL; + int32_t ret = 0; + char contri_key [512] = {0, }; + loc_t newloc = {0, }; + + local = (marker_local_t *) frame->local; + + if (local != NULL) { + oplocal = local->oplocal; + } + + priv = this->private; + + if (op_ret < 0) { + if (local != NULL) { + local->err = op_errno; + } + + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "renaming a file ", strerror (op_errno)); + } + + if (priv->feature_enabled & GF_QUOTA) { + if ((op_ret < 0) || (local == NULL)) { + goto quota_err; + } + + stub = fop_rename_cbk_stub (frame, default_rename_cbk, op_ret, + op_errno, buf, preoldparent, + postoldparent, prenewparent, + postnewparent, xdata); + if (stub == NULL) { + local->err = ENOMEM; + goto quota_err; + } + + local->stub = stub; + + GET_CONTRI_KEY (contri_key, oplocal->loc.parent->gfid, ret); + if (ret < 0) { + local->err = ENOMEM; + goto quota_err; + } + + /* Removexattr requires uid and gid to be 0, + * reset them in the callback. + */ + MARKER_SET_UID_GID (frame, local, frame->root); + + newloc.inode = inode_ref (oplocal->loc.inode); + newloc.path = gf_strdup (local->loc.path); + newloc.name = strrchr (newloc.path, '/'); + if (newloc.name) + newloc.name++; + newloc.parent = inode_ref (local->loc.parent); + uuid_copy (newloc.gfid, oplocal->loc.inode->gfid); + + STACK_WIND_COOKIE (frame, marker_rename_release_oldp_lock, + frame->cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, + &newloc, contri_key, NULL); + + loc_wipe (&newloc); + } else { + frame->local = NULL; + + STACK_UNWIND_STRICT (rename, frame, op_ret, op_errno, buf, + preoldparent, postoldparent, prenewparent, + postnewparent, xdata); + + if ((op_ret < 0) || (local == NULL)) { + goto out; + } + + if (priv->feature_enabled & GF_XTIME) { + //update marks on oldpath + uuid_copy (local->loc.gfid, oplocal->loc.inode->gfid); + marker_xtime_update_marks (this, oplocal); + marker_xtime_update_marks (this, local); + } + } + +out: + if (!(priv->feature_enabled & GF_QUOTA)) { + marker_local_unref (local); + marker_local_unref (oplocal); + } + + return 0; + +quota_err: + marker_rename_release_oldp_lock (frame, NULL, this, 0, 0, NULL); + return 0; +} + + +int32_t +marker_do_rename (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + char contri_key[512] = {0, }; + int32_t ret = 0; + int64_t *contribution = 0; + + local = frame->local; + oplocal = local->oplocal; + + //Reset frame uid and gid if set. + if (cookie == (void *) _GF_UID_GID_CHANGED) + MARKER_RESET_UID_GID (frame, frame->root, local); + + if ((op_ret < 0) && (op_errno != ENOATTR)) { + local->err = op_errno; + gf_log (this->name, GF_LOG_WARNING, + "fetching contribution values from %s (gfid:%s) " + "failed (%s)", local->loc.path, + uuid_utoa (local->loc.inode->gfid), + strerror (op_errno)); + goto err; + } + + if (local->loc.inode != NULL) { + GET_CONTRI_KEY (contri_key, local->loc.parent->gfid, ret); + if (ret < 0) { + local->err = errno; + goto err; + } + + if (dict_get_bin (dict, contri_key, + (void **) &contribution) == 0) { + local->contribution = ntoh64 (*contribution); + } + } + + STACK_WIND (frame, marker_rename_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rename, &oplocal->loc, + &local->loc, NULL); + + return 0; + +err: + marker_rename_release_oldp_lock (frame, NULL, this, 0, 0, NULL); + return 0; +} + + +int32_t +marker_get_newpath_contribution (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *dict, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + char contri_key[512] = {0, }; + int32_t ret = 0; + int64_t *contribution = 0; + + local = frame->local; + oplocal = local->oplocal; + + //Reset frame uid and gid if set. + if (cookie == (void *) _GF_UID_GID_CHANGED) + MARKER_RESET_UID_GID (frame, frame->root, local); + + if ((op_ret < 0) && (op_errno != ENOATTR)) { + local->err = op_errno; + gf_log (this->name, GF_LOG_WARNING, + "fetching contribution values from %s (gfid:%s) " + "failed (%s)", oplocal->loc.path, + uuid_utoa (oplocal->loc.inode->gfid), + strerror (op_errno)); + goto err; + } + + GET_CONTRI_KEY (contri_key, oplocal->loc.parent->gfid, ret); + if (ret < 0) { + local->err = errno; + goto err; + } + + if (dict_get_bin (dict, contri_key, (void **) &contribution) == 0) + oplocal->contribution = ntoh64 (*contribution); + + if (local->loc.inode != NULL) { + GET_CONTRI_KEY (contri_key, local->loc.parent->gfid, ret); + if (ret < 0) { + local->err = errno; + goto err; + } + + /* getxattr requires uid and gid to be 0, + * reset them in the callback. + */ + MARKER_SET_UID_GID (frame, local, frame->root); + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, local->loc.inode->gfid); + + GF_UUID_ASSERT (local->loc.gfid); + + STACK_WIND_COOKIE (frame, marker_do_rename, + frame->cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, + &local->loc, contri_key, NULL); + } else { + marker_do_rename (frame, NULL, this, 0, 0, NULL, NULL); + } + + return 0; +err: + marker_rename_release_oldp_lock (frame, NULL, this, 0, 0, NULL); + return 0; +} + + +int32_t +marker_get_oldpath_contribution (call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + char contri_key[512] = {0, }; + int32_t ret = 0; + + local = frame->local; + oplocal = local->oplocal; + + if (op_ret < 0) { + local->err = op_errno; + gf_log (this->name, GF_LOG_WARNING, + "cannot hold inodelk on %s (gfid:%s) (%s)", + local->next_lock_on->path, + uuid_utoa (local->next_lock_on->inode->gfid), + strerror (op_errno)); + goto lock_err; + } + + GET_CONTRI_KEY (contri_key, oplocal->loc.parent->gfid, ret); + if (ret < 0) { + local->err = errno; + goto quota_err; + } + + /* getxattr requires uid and gid to be 0, + * reset them in the callback. + */ + MARKER_SET_UID_GID (frame, local, frame->root); + + if (uuid_is_null (oplocal->loc.gfid)) + uuid_copy (oplocal->loc.gfid, + oplocal->loc.inode->gfid); + + GF_UUID_ASSERT (oplocal->loc.gfid); + + STACK_WIND_COOKIE (frame, marker_get_newpath_contribution, + frame->cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, + &oplocal->loc, contri_key, NULL); + return 0; + +quota_err: + marker_rename_release_oldp_lock (frame, NULL, this, 0, 0, NULL); + return 0; + +lock_err: + if ((local->next_lock_on == NULL) + || (local->next_lock_on == &local->parent_loc)) { + local->next_lock_on = NULL; + marker_rename_release_oldp_lock (frame, NULL, this, 0, 0, NULL); + } else { + marker_rename_release_newp_lock (frame, NULL, this, 0, 0, NULL); + } + + return 0; +} + + +int32_t +marker_rename_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL, *oplocal = NULL; + loc_t *loc = NULL; + struct gf_flock lock = {0, }; + + local = frame->local; + oplocal = local->oplocal; + + if (op_ret < 0) { + if (local->next_lock_on != &oplocal->parent_loc) { + loc = &oplocal->parent_loc; + } else { + loc = &local->parent_loc; + } + + local->err = op_errno; + gf_log (this->name, GF_LOG_WARNING, + "cannot hold inodelk on %s (gfid:%s) (%s)", + loc->path, uuid_utoa (loc->inode->gfid), + strerror (op_errno)); + goto err; + } + + if (local->next_lock_on != NULL) { + lock.l_len = 0; + lock.l_start = 0; + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + + STACK_WIND (frame, + marker_get_oldpath_contribution, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, local->next_lock_on, + F_SETLKW, &lock, NULL); + } else { + marker_get_oldpath_contribution (frame, 0, this, 0, 0, NULL); + } + + return 0; + +err: + marker_rename_done (frame, NULL, this, 0, 0, NULL); + return 0; +} + + +int32_t +marker_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, + loc_t *newloc, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_local_t *oplocal = NULL; + marker_conf_t *priv = NULL; + struct gf_flock lock = {0, }; + loc_t *lock_on = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto rename_wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + oplocal = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, oplocal); + + frame->local = local; + + local->oplocal = marker_local_ref (oplocal); + + ret = loc_copy (&local->loc, newloc); + if (ret < 0) + goto err; + + ret = loc_copy (&oplocal->loc, oldloc); + if (ret < 0) + goto err; + + if (!(priv->feature_enabled & GF_QUOTA)) { + goto rename_wind; + } + + ret = mq_inode_loc_fill (NULL, newloc->parent, &local->parent_loc); + if (ret < 0) + goto err; + + ret = mq_inode_loc_fill (NULL, oldloc->parent, &oplocal->parent_loc); + if (ret < 0) + goto err; + + if ((newloc->inode != NULL) && (newloc->parent != oldloc->parent) + && (uuid_compare (newloc->parent->gfid, + oldloc->parent->gfid) < 0)) { + lock_on = &local->parent_loc; + local->next_lock_on = &oplocal->parent_loc; + } else { + lock_on = &oplocal->parent_loc; + if ((newloc->inode != NULL) && (newloc->parent + != oldloc->parent)) { + local->next_lock_on = &local->parent_loc; + } + } + + lock.l_len = 0; + lock.l_start = 0; + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + + STACK_WIND (frame, + marker_rename_inodelk_cbk, + FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, + this->name, lock_on, + F_SETLKW, &lock, NULL); + + return 0; + +rename_wind: + STACK_WIND (frame, marker_rename_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rename, oldloc, newloc, xdata); + + return 0; +err: + STACK_UNWIND_STRICT (rename, frame, -1, ENOMEM, NULL, + NULL, NULL, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "truncating a file ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); + +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset, + dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_truncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); + return 0; +err: + STACK_UNWIND_STRICT (truncate, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "truncating a file ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_ftruncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); + return 0; +err: + STACK_UNWIND_STRICT (ftruncate, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_symlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "creating symlinks ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (symlink, frame, op_ret, op_errno, inode, buf, + preparent, postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_set_inode_xattr (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int +marker_symlink (call_frame_t *frame, xlator_t *this, const char *linkpath, + loc_t *loc, mode_t umask, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_symlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->symlink, linkpath, loc, umask, + xdata); + return 0; +err: + STACK_UNWIND_STRICT (symlink, frame, -1, ENOMEM, NULL, + NULL, NULL, NULL, NULL); + return 0; +} + + +int32_t +marker_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "creating symlinks ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, inode, + buf, preparent, postparent, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + priv = this->private; + + if ((priv->feature_enabled & GF_QUOTA) && (S_ISREG (local->mode))) { + mq_set_inode_xattr (this, &local->loc); + } + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int +marker_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + dev_t rdev, mode_t umask, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + local->mode = mode; + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_mknod_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mknod, loc, mode, rdev, umask, + xdata); + return 0; +err: + STACK_UNWIND_STRICT (mknod, frame, -1, ENOMEM, NULL, + NULL, NULL, NULL, NULL); + return 0; +} + + +int32_t +marker_fallocate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "fallocating a file ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (fallocate, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode, + off_t offset, size_t len, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_fallocate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, len, + xdata); + return 0; +err: + STACK_UNWIND_STRICT (fallocate, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_discard_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred during discard", + strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (discard, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + size_t len, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_discard_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->discard, fd, offset, len, xdata); + return 0; +err: + STACK_UNWIND_STRICT (discard, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + +int32_t +marker_zerofill_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred during zerofill", + strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (zerofill, frame, op_ret, op_errno, prebuf, + postbuf, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) + mq_initiate_quota_txn (this, &local->loc); + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + size_t len, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_zerofill_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->zerofill, fd, offset, len, xdata); + return 0; +err: + STACK_UNWIND_STRICT (zerofill, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +/* when a call from the special client is received on + * key trusted.glusterfs.volume-mark with value "RESET" + * or if the value is 0length, update the change the + * access time and modification time via touching the + * timestamp file. + */ +int32_t +call_from_sp_client_to_reset_tmfile (call_frame_t *frame, + xlator_t *this, + dict_t *dict) +{ + int32_t fd = 0; + int32_t op_ret = 0; + int32_t op_errno = 0; + data_t *data = NULL; + marker_conf_t *priv = NULL; + + if (frame == NULL || this == NULL || dict == NULL) + return -1; + + priv = this->private; + + data = dict_get (dict, "trusted.glusterfs.volume-mark"); + if (data == NULL) + return -1; + + if (frame->root->pid != GF_CLIENT_PID_GSYNCD) { + op_ret = -1; + op_errno = EPERM; + + goto out; + } + + if (data->len == 0 || (data->len == 5 && + memcmp (data->data, "RESET", 5) == 0)) { + fd = open (priv->timestamp_file, O_WRONLY|O_TRUNC); + if (fd != -1) { + /* TODO check whether the O_TRUNC would update the + * timestamps on a zero length file on all machies. + */ + close (fd); + } + + if (fd != -1 || errno == ENOENT) { + op_ret = 0; + op_errno = 0; + } else { + op_ret = -1; + op_errno = errno; + } + } else { + op_ret = -1; + op_errno = EINVAL; + } +out: + STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, NULL); + + return 0; +} + + +int32_t +marker_setxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred in " + "setxattr ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, + int32_t flags, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + ret = call_from_sp_client_to_reset_tmfile (frame, this, dict); + if (ret == 0) + return 0; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_setxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, loc, dict, flags, xdata); + return 0; +err: + STACK_UNWIND_STRICT (setxattr, frame, -1, ENOMEM, NULL); + + return 0; +} + + +int32_t +marker_fsetxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "%s occurred while " + "creating symlinks ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, + int32_t flags, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + ret = call_from_sp_client_to_reset_tmfile (frame, this, dict); + if (ret == 0) + return 0; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_fsetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); + return 0; +err: + STACK_UNWIND_STRICT (fsetxattr, frame, -1, ENOMEM, NULL); + + return 0; +} + + +int32_t +marker_fsetattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *statpre, + struct iatt *statpost, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_ERROR, "%s occurred while " + "creating symlinks ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (fsetattr, frame, op_ret, op_errno, statpre, + statpost, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + + +int32_t +marker_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iatt *stbuf, int32_t valid, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = marker_inode_loc_fill (fd->inode, &local->loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_fsetattr_cbk, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->fsetattr, fd, stbuf, valid, xdata); + return 0; +err: + STACK_UNWIND_STRICT (fsetattr, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *statpre, + struct iatt *statpost, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + if (op_ret == -1) { + gf_log (this->name, ((op_errno == ENOENT) ? GF_LOG_DEBUG : + GF_LOG_ERROR), + "%s occurred during setattr of %s", + strerror (op_errno), + (local ? local->loc.path : "<nul>")); + } + + STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno, statpre, + statpost, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + struct iatt *stbuf, int32_t valid, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_setattr_cbk, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->setattr, loc, stbuf, valid, xdata); + return 0; +err: + STACK_UNWIND_STRICT (setattr, frame, -1, ENOMEM, NULL, NULL, NULL); + + return 0; +} + + +int32_t +marker_removexattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) +{ + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_ERROR, "%s occurred while " + "creating symlinks ", strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (removexattr, frame, op_ret, op_errno, xdata); + + if (op_ret == -1 || local == NULL) + goto out; + + priv = this->private; + + if (priv->feature_enabled & GF_XTIME) + marker_xtime_update_marks (this, local); +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_removexattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + + if (ret == -1) + goto err; +wind: + STACK_WIND (frame, marker_removexattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, loc, name, xdata); + return 0; +err: + STACK_UNWIND_STRICT (removexattr, frame, -1, ENOMEM, NULL); + + return 0; +} + + +int32_t +marker_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode, + struct iatt *buf, dict_t *dict, struct iatt *postparent) +{ + marker_conf_t *priv = NULL; + marker_local_t *local = NULL; + + if (op_ret == -1) { + gf_log (this->name, GF_LOG_TRACE, "lookup failed with %s", + strerror (op_errno)); + } + + local = (marker_local_t *) frame->local; + + frame->local = NULL; + + STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, inode, buf, + dict, postparent); + + if (op_ret == -1 || local == NULL) + goto out; + + /* copy the gfid from the stat structure instead of inode, + * since if the lookup is fresh lookup, then the inode + * would have not yet linked to the inode table which happens + * in protocol/server. + */ + if (uuid_is_null (local->loc.gfid)) + uuid_copy (local->loc.gfid, buf->ia_gfid); + + + priv = this->private; + + if (priv->feature_enabled & GF_QUOTA) { + mq_xattr_state (this, &local->loc, dict, *buf); + } + +out: + marker_local_unref (local); + + return 0; +} + +int32_t +marker_lookup (call_frame_t *frame, xlator_t *this, + loc_t *loc, dict_t *xattr_req) +{ + int32_t ret = 0; + marker_local_t *local = NULL; + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + local = mem_get0 (this->local_pool); + + MARKER_INIT_LOCAL (frame, local); + + ret = loc_copy (&local->loc, loc); + if (ret == -1) + goto err; + + if ((priv->feature_enabled & GF_QUOTA) && xattr_req) + mq_req_xattr (this, loc, xattr_req); +wind: + STACK_WIND (frame, marker_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + return 0; +err: + STACK_UNWIND_STRICT (lookup, frame, -1, 0, NULL, NULL, NULL, NULL); + + return 0; +} + +int +marker_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, gf_dirent_t *entries, + dict_t *xdata) +{ + gf_dirent_t *entry = NULL; + + if (op_ret <= 0) + goto unwind; + + list_for_each_entry (entry, &entries->list, list) { + /* TODO: fill things */ + } + +unwind: + STACK_UNWIND_STRICT (readdirp, frame, op_ret, op_errno, entries, xdata); + + return 0; +} + +int +marker_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, dict_t *dict) +{ + marker_conf_t *priv = NULL; + + priv = this->private; + + if (priv->feature_enabled == 0) + goto wind; + + if ((priv->feature_enabled & GF_QUOTA) && dict) + mq_req_xattr (this, NULL, dict); + +wind: + STACK_WIND (frame, marker_readdirp_cbk, + FIRST_CHILD(this), FIRST_CHILD(this)->fops->readdirp, + fd, size, offset, dict); + + return 0; +} + + +int32_t +mem_acct_init (xlator_t *this) +{ + int ret = -1; + + if (!this) + return ret; + + ret = xlator_mem_acct_init (this, gf_marker_mt_end + 1); + + if (ret != 0) { + gf_log(this->name, GF_LOG_ERROR, "Memory accounting init" + "failed"); + return ret; + } + + return ret; +} + + +int32_t +init_xtime_priv (xlator_t *this, dict_t *options) +{ + data_t *data = NULL; + int32_t ret = -1; + marker_conf_t *priv = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + GF_VALIDATE_OR_GOTO (this->name, options, out); + GF_VALIDATE_OR_GOTO (this->name, this->private, out); + + priv = this->private; + + if((data = dict_get (options, VOLUME_UUID)) != NULL) { + priv->volume_uuid = data->data; + + ret = uuid_parse (priv->volume_uuid, priv->volume_uuid_bin); + if (ret == -1) { + gf_log (this->name, GF_LOG_ERROR, + "invalid volume uuid %s", priv->volume_uuid); + goto out; + } + + ret = gf_asprintf (& (priv->marker_xattr), "%s.%s.%s", + MARKER_XATTR_PREFIX, priv->volume_uuid, + XTIME); + + if (ret == -1){ + priv->marker_xattr = NULL; + + gf_log (this->name, GF_LOG_ERROR, + "Failed to allocate memory"); + goto out; + } + + gf_log (this->name, GF_LOG_DEBUG, + "the volume-uuid = %s", priv->volume_uuid); + } else { + priv->volume_uuid = NULL; + + gf_log (this->name, GF_LOG_ERROR, + "please specify the volume-uuid" + "in the translator options"); + + return -1; + } + + if ((data = dict_get (options, TIMESTAMP_FILE)) != NULL) { + priv->timestamp_file = data->data; + + gf_log (this->name, GF_LOG_DEBUG, + "the timestamp-file is = %s", + priv->timestamp_file); + + } else { + priv->timestamp_file = NULL; + + gf_log (this->name, GF_LOG_ERROR, + "please specify the timestamp-file" + "in the translator options"); + + goto out; + } + + ret = 0; +out: + return ret; +} + +void +marker_xtime_priv_cleanup (xlator_t *this) +{ + marker_conf_t *priv = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + + priv = (marker_conf_t *) this->private; + + GF_VALIDATE_OR_GOTO (this->name, priv, out); + + GF_FREE (priv->volume_uuid); + + GF_FREE (priv->timestamp_file); + + GF_FREE (priv->marker_xattr); +out: + return; +} + +void +marker_priv_cleanup (xlator_t *this) +{ + marker_conf_t *priv = NULL; + + GF_VALIDATE_OR_GOTO ("marker", this, out); + + priv = (marker_conf_t *) this->private; + + GF_VALIDATE_OR_GOTO (this->name, priv, out); + + marker_xtime_priv_cleanup (this); + + LOCK_DESTROY (&priv->lock); + + GF_FREE (priv); +out: + return; +} + +int32_t +reconfigure (xlator_t *this, dict_t *options) +{ + int32_t ret = 0; + data_t *data = NULL; + gf_boolean_t flag = _gf_false; + marker_conf_t *priv = NULL; + + GF_ASSERT (this); + GF_ASSERT (this->private); + + priv = this->private; + + priv->feature_enabled = 0; + + GF_VALIDATE_OR_GOTO (this->name, options, out); + + data = dict_get (options, "quota"); + if (data) { + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag == _gf_true) { + ret = init_quota_priv (this); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "failed to initialize quota private"); + } else { + priv->feature_enabled |= GF_QUOTA; + } + } + } + + data = dict_get (options, "xtime"); + if (data) { + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag == _gf_true) { + marker_xtime_priv_cleanup (this); + + ret = init_xtime_priv (this, options); + if (ret < 0) { + gf_log (this->name, GF_LOG_WARNING, + "failed to initialize xtime private, " + "xtime updation will fail"); + } else { + priv->feature_enabled |= GF_XTIME; + data = dict_get (options, "gsync-force-xtime"); + if (!data) + goto out; + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag) + priv->feature_enabled |= GF_XTIME_GSYNC_FORCE; + } + } + } +out: + return ret; +} + + +int32_t +init (xlator_t *this) +{ + dict_t *options = NULL; + data_t *data = NULL; + int32_t ret = 0; + gf_boolean_t flag = _gf_false; + marker_conf_t *priv = NULL; + + if (!this->children) { + gf_log (this->name, GF_LOG_ERROR, + "marker translator needs subvolume defined."); + return -1; + } + + if (!this->parents) { + gf_log (this->name, GF_LOG_WARNING, + "Volume is dangling."); + return -1; + } + + options = this->options; + + ALLOCATE_OR_GOTO (this->private, marker_conf_t, err); + + priv = this->private; + + priv->feature_enabled = 0; + + LOCK_INIT (&priv->lock); + + data = dict_get (options, "quota"); + if (data) { + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag == _gf_true) { + ret = init_quota_priv (this); + if (ret < 0) + goto err; + + priv->feature_enabled |= GF_QUOTA; + } + } + + data = dict_get (options, "xtime"); + if (data) { + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag == _gf_true) { + ret = init_xtime_priv (this, options); + if (ret < 0) + goto err; + + priv->feature_enabled |= GF_XTIME; + data = dict_get (options, "gsync-force-xtime"); + if (!data) + goto cont; + ret = gf_string2boolean (data->data, &flag); + if (ret == 0 && flag) + priv->feature_enabled |= GF_XTIME_GSYNC_FORCE; + } + } + + cont: + this->local_pool = mem_pool_new (marker_local_t, 128); + if (!this->local_pool) { + gf_log (this->name, GF_LOG_ERROR, + "failed to create local_t's memory pool"); + goto err; + } + + return 0; +err: + marker_priv_cleanup (this); + + return -1; +} + +int32_t +marker_forget (xlator_t *this, inode_t *inode) +{ + marker_inode_ctx_t *ctx = NULL; + uint64_t value = 0; + + if (inode_ctx_del (inode, this, &value) != 0) + goto out; + + ctx = (marker_inode_ctx_t *)(unsigned long)value; + if (ctx == NULL) { + goto out; + } + + mq_forget (this, ctx->quota_ctx); + + GF_FREE (ctx); +out: + return 0; +} + +void +fini (xlator_t *this) +{ + marker_priv_cleanup (this); +} + +struct xlator_fops fops = { + .lookup = marker_lookup, + .create = marker_create, + .mkdir = marker_mkdir, + .writev = marker_writev, + .truncate = marker_truncate, + .ftruncate = marker_ftruncate, + .symlink = marker_symlink, + .link = marker_link, + .unlink = marker_unlink, + .rmdir = marker_rmdir, + .rename = marker_rename, + .mknod = marker_mknod, + .setxattr = marker_setxattr, + .fsetxattr = marker_fsetxattr, + .setattr = marker_setattr, + .fsetattr = marker_fsetattr, + .removexattr = marker_removexattr, + .getxattr = marker_getxattr, + .readdirp = marker_readdirp, + .fallocate = marker_fallocate, + .discard = marker_discard, + .zerofill = marker_zerofill, +}; + +struct xlator_cbks cbks = { + .forget = marker_forget +}; + +struct volume_options options[] = { + {.key = {"volume-uuid"}}, + {.key = {"timestamp-file"}}, + {.key = {"quota"}}, + {.key = {"xtime"}}, + {.key = {"gsync-force-xtime"}}, + {.key = {NULL}} +}; diff --git a/xlators/features/marker/src/marker.h b/xlators/features/marker/src/marker.h new file mode 100644 index 000000000..1a58f8cfc --- /dev/null +++ b/xlators/features/marker/src/marker.h @@ -0,0 +1,138 @@ +/* + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _MARKER_H +#define _MARKER_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "marker-quota.h" +#include "xlator.h" +#include "defaults.h" +#include "uuid.h" +#include "call-stub.h" + +#define MARKER_XATTR_PREFIX "trusted.glusterfs" +#define XTIME "xtime" +#define VOLUME_MARK "volume-mark" +#define VOLUME_UUID "volume-uuid" +#define TIMESTAMP_FILE "timestamp-file" + +enum { + GF_QUOTA = 1, + GF_XTIME = 2, + GF_XTIME_GSYNC_FORCE = 4, +}; + +/*initialize the local variable*/ +#define MARKER_INIT_LOCAL(_frame,_local) do { \ + _frame->local = _local; \ + _local->pid = _frame->root->pid; \ + memset (&_local->loc, 0, sizeof (loc_t)); \ + _local->ref = 1; \ + _local->uid = -1; \ + _local->gid = -1; \ + LOCK_INIT (&_local->lock); \ + _local->oplocal = NULL; \ + } while (0) + +/* try alloc and if it fails, goto label */ +#define ALLOCATE_OR_GOTO(var, type, label) do { \ + var = GF_CALLOC (sizeof (type), 1, \ + gf_marker_mt_##type); \ + if (!var) { \ + gf_log (this->name, GF_LOG_ERROR, \ + "out of memory :("); \ + goto label; \ + } \ + } while (0) + +#define _MARKER_SET_UID_GID(dest, src) \ + do { \ + if (src->uid != -1 && \ + src->gid != -1) { \ + dest->uid = src->uid; \ + dest->gid = src->gid; \ + } \ + } while (0) + +#define MARKER_SET_UID_GID(frame, dest, src) \ + do { \ + _MARKER_SET_UID_GID (dest, src); \ + frame->root->uid = 0; \ + frame->root->gid = 0; \ + frame->cookie = (void *) _GF_UID_GID_CHANGED; \ + } while (0) + +#define MARKER_RESET_UID_GID(frame, dest, src) \ + do { \ + _MARKER_SET_UID_GID (dest, src); \ + frame->cookie = NULL; \ + } while (0) + +struct marker_local{ + uint32_t timebuf[2]; + pid_t pid; + loc_t loc; + loc_t parent_loc; + loc_t *next_lock_on; + uid_t uid; + gid_t gid; + int32_t ref; + int32_t ia_nlink; + gf_lock_t lock; + mode_t mode; + int32_t err; + call_stub_t *stub; + int64_t contribution; + struct marker_local *oplocal; + + /* marker quota specific */ + int64_t delta; + int64_t d_off; + int64_t sum; + int64_t size; + int32_t hl_count; + int32_t dentry_child_count; + + fd_t *fd; + call_frame_t *frame; + + quota_inode_ctx_t *ctx; + inode_contribution_t *contri; + + int xflag; + dict_t *xdata; +}; +typedef struct marker_local marker_local_t; + +#define quota_local_t marker_local_t + +struct marker_inode_ctx { + struct quota_inode_ctx *quota_ctx; +}; +typedef struct marker_inode_ctx marker_inode_ctx_t; + +struct marker_conf{ + char feature_enabled; + char *size_key; + char *dirty_key; + char *volume_uuid; + uuid_t volume_uuid_bin; + char *timestamp_file; + char *marker_xattr; + uint64_t quota_lk_owner; + gf_lock_t lock; +}; +typedef struct marker_conf marker_conf_t; + +#endif |