summaryrefslogtreecommitdiffstats
path: root/xlators/nfs/server/src/nfs-fops.c
diff options
context:
space:
mode:
authorShehjar Tikoo <shehjart@gluster.com>2010-03-31 07:27:03 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-03-31 07:44:02 -0700
commitc4fd1cf7325972d8ff64ef3a2bea70edcf4f1085 (patch)
treeb91c42227b2881eb8b77d39aca3d8348966bc052 /xlators/nfs/server/src/nfs-fops.c
parent8b2949db0d56bdf5842abcb72437cc7dccd884df (diff)
nfs: Add generic nfs translator
Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 399 (NFS translator with Mount v3 and NFS v3 support) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=399
Diffstat (limited to 'xlators/nfs/server/src/nfs-fops.c')
-rw-r--r--xlators/nfs/server/src/nfs-fops.c1441
1 files changed, 1441 insertions, 0 deletions
diff --git a/xlators/nfs/server/src/nfs-fops.c b/xlators/nfs/server/src/nfs-fops.c
new file mode 100644
index 000000000..3d4968a8b
--- /dev/null
+++ b/xlators/nfs/server/src/nfs-fops.c
@@ -0,0 +1,1441 @@
+/*
+ Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3 of the License,
+ or (at your option) any later version.
+
+ GlusterFS is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "dict.h"
+#include "xlator.h"
+#include "iobuf.h"
+#include "call-stub.h"
+#include "stack.h"
+#include "nfs.h"
+#include "nfs-fops.h"
+#include "inode.h"
+#include "nfs-common.h"
+
+#include <libgen.h>
+#include <semaphore.h>
+
+#define nfs_stack_destroy(fram) \
+ do { \
+ (fram)->local = NULL; \
+ STACK_DESTROY ((fram)->root); \
+ } while (0) \
+
+
+struct nfs_fop_local *
+nfs_fop_local_init (xlator_t *xl)
+{
+ struct nfs_fop_local *l = NULL;
+ struct nfs_state *nfs = NULL;
+ if (!xl)
+ return NULL;
+
+ nfs = xlator_top_private (xl);
+ l = mem_get (nfs->foppool);
+
+ memset (l, 0, sizeof (*l));
+ return l;
+}
+
+void
+nfs_fop_local_wipe (xlator_t *xl, struct nfs_fop_local *l)
+{
+ struct nfs_state *nfs = NULL;
+
+ if ((!xl) || (!l))
+ return;
+
+ nfs = xlator_top_private (xl);
+
+ if (l->iobref)
+ iobref_unref (l->iobref);
+
+ if (l->parent)
+ inode_unref (l->parent);
+
+ if (l->inode)
+ inode_unref (l->inode);
+
+ if (l->newparent)
+ inode_unref (l->newparent);
+
+ mem_put (nfs->foppool, l);
+
+ return;
+}
+
+call_frame_t *
+nfs_create_frame (xlator_t *xl, nfs_user_t *nfu)
+{
+ call_frame_t *frame = NULL;
+ int x = 0;
+ int y = 0;
+
+ if ((!xl) || (!nfu) || (nfu->ngrps > NFS_NGROUPS))
+ return NULL;
+
+ frame = create_frame (xl, (call_pool_t *)xl->ctx->pool);
+ if (!frame)
+ goto err;
+ frame->root->uid = nfu->uid;
+ frame->root->gid = nfu->gids[NFS_PRIMGID_IDX];
+ if (nfu->ngrps == 1)
+ goto err; /* Done, we only got primary gid */
+
+ frame->root->ngrps = nfu->ngrps - 1;
+
+ gf_log (GF_NFS, GF_LOG_TRACE,"uid: %d, gid %d, gids: %d",
+ frame->root->uid, frame->root->gid, frame->root->ngrps);
+ for(y = 0, x = 1; y < frame->root->ngrps; x++,y++) {
+ gf_log (GF_NFS, GF_LOG_TRACE, "gid: %d", nfu->gids[x]);
+ frame->root->groups[y] = nfu->gids[x];
+ }
+
+err:
+ return frame;
+}
+
+#define nfs_fop_handle_frame_create(fram, xla, nfuser, retval, errlabel) \
+ do { \
+ fram = nfs_create_frame (xla, (nfuser)); \
+ if (!fram) { \
+ retval = (-ENOMEM); \
+ gf_log (GF_NFS, GF_LOG_ERROR,"Frame creation failed");\
+ goto errlabel; \
+ } \
+ } while (0) \
+
+/* Look into the inode and parent inode of a loc and save enough state
+ * for us to determine in the callback whether to funge the ino in the stat buf
+ * with 1 for the parent.
+ */
+#define nfs_fop_save_root_ino(locl, loc) \
+ do { \
+ if ((loc)->ino == 1) \
+ (locl)->rootinode = 1; \
+ else if (((loc)->parent) && ((loc)->parent->ino == 1)) \
+ (locl)->rootparentinode = 1; \
+ } while (0) \
+
+/* Do the same for an fd */
+#define nfs_fop_save_root_fd_ino(locl, fdesc) \
+ do { \
+ if ((fdesc)->inode->ino == 1) \
+ (locl)->rootinode = 1; \
+ } while (0) \
+
+
+
+/* Use the state saved by the previous macro to funge the ino in the appropriate
+ * structure.
+ */
+#define nfs_fop_restore_root_ino(locl, preattr, postattr, prepar, postpar) \
+ do { \
+ if ((locl)->rootinode) { \
+ if ((preattr)) { \
+ ((struct iatt *)(preattr))->ia_ino = 1; \
+ ((struct iatt *)(preattr))->ia_dev = 0; \
+ } \
+ if ((postattr)) { \
+ ((struct iatt *)(postattr))->ia_ino = 1; \
+ ((struct iatt *)(postattr))->ia_dev = 0; \
+ } \
+ } else if ((locl)->rootparentinode) { \
+ if ((prepar)) { \
+ ((struct iatt *)(prepar))->ia_ino = 1; \
+ ((struct iatt *)(prepar))->ia_dev = 0; \
+ } \
+ if ((postpar)) { \
+ ((struct iatt *)(postpar))->ia_ino = 1; \
+ ((struct iatt *)(postpar))->ia_dev = 0; \
+ } \
+ } \
+ } while (0) \
+
+/* If the newly created, inode's parent is root, we'll need to funge the ino
+ * in the parent attr when we receive them in the callback.
+ */
+#define nfs_fop_newloc_save_root_ino(locl, newloc) \
+ do { \
+ if ((newloc)->ino == 1) \
+ (locl)->newrootinode = 1; \
+ else if (((newloc)->parent) && ((newloc)->parent->ino == 1)) \
+ (locl)->newrootparentinode = 1; \
+ } while (0) \
+
+
+#define nfs_fop_newloc_restore_root_ino(locl, preattr, postattr, prepar, postpar) \
+ do { \
+ if ((locl)->newrootinode) { \
+ if ((preattr)) \
+ ((struct iatt *)(preattr))->ia_ino = 1; \
+ if ((postattr)) \
+ ((struct iatt *)(postattr))->ia_ino = 1; \
+ } else if ((locl)->newrootparentinode) { \
+ if ((prepar)) \
+ ((struct iatt *)(prepar))->ia_ino = 1; \
+ if ((postpar)) \
+ ((struct iatt *)(postpar))->ia_ino = 1; \
+ } \
+ } while (0) \
+
+/* Fops Layer Explained
+ * The fops layer has three types of functions. They can all be identified by
+ * their names. Here are the three patterns:
+ *
+ * nfs_fop_<fopname>
+ * This is the lowest level function that knows nothing about states and
+ * callbacks. At most this is required to create a frame and call the
+ * fop. The idea here is to provide a convenient way to call fops than
+ * directly use STACK_WINDs. If this type of interface is used, the caller's
+ * callback is responsible for doing the relevant GlusterFS state
+ * maintenance operations on the data returned in the callbacks.
+ *
+ * nfs_fop_<fopname>_sync
+ * These are synchronous versions of the above fops. The idea is that
+ * if the user wants to wait for the fop to complete, this is the interface to
+ * use. The caller is responsible for doing the relevant GlusterFS
+ * state maintenance operations on the call_stub_t that is returned, including
+ * calling call_stub_destroy.
+ *
+ * nfs_<fopname>_sync
+ * This is help callers avoid the need to pass a pathloc to the
+ * nfs_fop_<fopname>_sync versions of the same fops.
+ *
+ * nfs_<fopname>
+ * Unlike the nfs_fop_<fopname> variety, this is the stateful type of fop, in
+ * that it silently performs all the relevant GlusterFS state maintainence
+ * operations on the data returned to the callbacks, leaving the caller's
+ * callback to just use the data returned for whatever it needs to do with that
+ * data, for eg. the nfs_lookup, will take care of looking up the inodes,
+ * revalidating them if needed and linking new inodes into the table, while
+ * the caller's callback, for eg, the NFSv3 LOOKUP callback can just use
+ * the stat bufs returned to create file handle, map the file handle into the
+ * fh cache and finally encode the fh and the stat bufs into a NFS reply.
+ *
+ */
+
+int32_t
+nfs_fop_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 *xattr, struct iatt *postparent)
+{
+ struct nfs_fop_local *local = NULL;
+ fop_lookup_cbk_t progcbk;
+
+ nfl_to_prog_data (this, local, progcbk, frame);
+ nfs_fop_restore_root_ino (local, buf, NULL, NULL, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, inode, buf,
+ xattr, postparent);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_lookup (xlator_t *xl, nfs_user_t *nfu, loc_t *loc,
+ fop_lookup_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!loc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Lookup: %s", loc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, loc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_lookup_cbk, xl, xl, xl->fops->lookup,
+ loc, NULL);
+
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_stat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *buf)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_stat_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, buf);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_stat (xlator_t *xl, nfs_user_t *nfu, loc_t *loc,
+ fop_stat_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!loc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Stat: %s", loc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, loc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_stat_cbk, xl, xl, xl->fops->stat,
+ loc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *buf)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_fstat_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, buf);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_fstat (xlator_t *xl, nfs_user_t *nfu, fd_t *fd,
+ fop_fstat_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!fd) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "FStat");
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_fd_ino (nfl, fd);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_fstat_cbk, xl, xl, xl->fops->fstat,
+ fd);
+
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_opendir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, fd_t *fd)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_opendir_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, fd);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_opendir (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,fd_t *dirfd,
+ fop_opendir_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!dirfd) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Opendir: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_opendir_cbk, xl, xl,
+ xl->fops->opendir, pathloc, dirfd);
+ ret = 0;
+
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+int
+nfs_fop_flush_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_flush_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_flush (xlator_t *xl, nfs_user_t *nfu, fd_t *fd,
+ fop_flush_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!fd) || (!nfu))
+ return ret;
+
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_flush_cbk, xl, xl, xl->fops->flush,
+ fd);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, gf_dirent_t *entries)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_readdirp_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, entries);
+
+ nfs_stack_destroy (frame);
+
+ return 0;
+}
+
+
+int
+nfs_fop_readdirp (xlator_t *xl, nfs_user_t *nfu, fd_t *dirfd,
+ size_t bufsize, off_t offset, fop_readdirp_cbk_t cbk,
+ void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!dirfd) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "readdir");
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_readdirp_cbk, xl, xl,
+ xl->fops->readdirp, dirfd, bufsize, offset);
+
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct statvfs *buf)
+{
+
+ struct nfs_fop_local *nfl = NULL;
+ fop_statfs_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, buf);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_statfs (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,
+ fop_statfs_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Statfs: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_statfs_cbk, xl, xl, xl->fops->statfs
+ ,pathloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_create_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, fd, inode, buf,
+ preparent, postparent);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_create (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc, int flags,
+ mode_t mode, fd_t *fd, fop_create_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Create: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_create_cbk, xl, xl, xl->fops->create
+ , pathloc, flags, mode, fd);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *pre,
+ struct iatt *post)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_setattr_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, pre, post, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, pre, post);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+
+int
+nfs_fop_setattr (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,
+ struct iatt *buf, int32_t valid, fop_setattr_cbk_t cbk,
+ void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Setattr: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_setattr_cbk, xl, xl,
+ xl->fops->setattr, pathloc, buf, valid);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_mkdir_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_mkdir (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc, mode_t mode,
+ fop_mkdir_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Mkdir: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_mkdir_cbk, xl, xl, xl->fops->mkdir,
+ pathloc, mode);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_symlink_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+int
+nfs_fop_symlink (xlator_t *xl, nfs_user_t *nfu, char *target,
+ loc_t *pathloc, fop_symlink_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!target) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Symlink: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_symlink_cbk, xl, xl,
+ xl->fops->symlink, target, pathloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_readlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, const char *path,
+ struct iatt *buf)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_readlink_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, path, buf);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_readlink (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,
+ size_t size, fop_readlink_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Readlink: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_readlink_cbk, xl, xl,
+ xl->fops->readlink, pathloc, size);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_mknod_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_mknod (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc, mode_t mode,
+ dev_t dev, fop_mknod_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Mknod: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_mknod_cbk, xl, xl, xl->fops->mknod,
+ pathloc, mode, dev);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+
+}
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = frame->local;
+ fop_rmdir_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, NULL, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, preparent,
+ postparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+
+int
+nfs_fop_rmdir (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,
+ fop_rmdir_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Rmdir: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_rmdir_cbk, xl, xl, xl->fops->rmdir,
+ pathloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = frame->local;
+ fop_unlink_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, NULL, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, preparent,
+ postparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_unlink (xlator_t *xl, nfs_user_t *nfu, loc_t *pathloc,
+ fop_unlink_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!pathloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Unlink: %s", pathloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, pathloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_unlink_cbk, xl, xl, xl->fops->unlink,
+ pathloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_link_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, buf, NULL, preparent, postparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_link (xlator_t *xl, nfs_user_t *nfu, loc_t *oldloc, loc_t *newloc,
+ fop_link_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!oldloc) || (!newloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Link: %s -> %s", newloc->path,
+ oldloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, newloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_link_cbk, xl, xl, xl->fops->link,
+ oldloc, newloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+
+ struct nfs_fop_local *nfl = NULL;
+ fop_rename_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ /* The preattr arg needs to be NULL instead of @buf because it is
+ * possible that the new parent is not root whereas the source dir
+ * could've been. That is handled in the next macro.
+ */
+ nfs_fop_restore_root_ino (nfl, NULL, NULL, preoldparent, postoldparent);
+ nfs_fop_newloc_restore_root_ino (nfl, buf, NULL, prenewparent,
+ postnewparent);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, buf,
+ preoldparent, postoldparent, prenewparent,
+ postnewparent);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_rename (xlator_t *xl, nfs_user_t *nfu, loc_t *oldloc,
+ loc_t *newloc, fop_rename_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!oldloc) || (!newloc) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Rename: %s -> %s", oldloc->path,
+ newloc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, oldloc);
+ nfs_fop_newloc_save_root_ino (nfl, newloc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_rename_cbk, xl, xl, xl->fops->rename,
+ oldloc, newloc);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, fd_t *fd)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_open_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, fd);
+ nfs_stack_destroy (frame);
+
+ return 0;
+}
+
+int
+nfs_fop_open (xlator_t *xl, nfs_user_t *nfu, loc_t *loc, int32_t flags,
+ fd_t *fd, int32_t wbflags, fop_open_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!loc) || (!fd) || (!nfu))
+ return ret;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Open: %s", loc->path);
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_open_cbk, xl, xl, xl->fops->open,
+ loc, flags, fd, wbflags);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_writev_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, prebuf, postbuf, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, prebuf,postbuf);
+
+ nfs_stack_destroy (frame);
+
+ return 0;
+}
+
+
+int
+nfs_fop_write (xlator_t *xl, nfs_user_t *nfu, fd_t *fd, struct iobuf *srciob,
+ struct iovec *vector, int32_t count, off_t offset,
+ fop_writev_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!fd) || (!vector) || (!nfu) || (!srciob))
+ return ret;
+
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_fd_ino (nfl, fd);
+
+ nfl->iobref = iobref_new ();
+ if (!nfl->iobref) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "iobref creation failed");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ iobref_add (nfl->iobref, srciob);
+ STACK_WIND_COOKIE (frame, nfs_fop_writev_cbk, xl, xl, xl->fops->writev
+ , fd, vector, count, offset, nfl->iobref);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ nfs_fop_local_wipe (xl, nfl);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_fsync_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, prebuf, postbuf, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, prebuf,postbuf);
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+
+int
+nfs_fop_fsync (xlator_t *xl, nfs_user_t *nfu, fd_t *fd, int32_t datasync,
+ fop_fsync_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!fd))
+ return ret;
+
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_fd_ino (nfl, fd);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_fsync_cbk, xl, xl,
+ xl->fops->fsync, fd, datasync);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_readv_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iovec *vector,
+ int32_t count, struct iatt *stbuf, struct iobref *iobref)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_readv_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, stbuf, NULL, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, vector, count,
+ stbuf, iobref);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_read (xlator_t *xl, nfs_user_t *nfu, fd_t *fd, size_t size,
+ off_t offset, fop_readv_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!fd) || (!nfu))
+ return ret;
+
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_fd_ino (nfl, fd);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_readv_cbk, xl, xl, xl->fops->readv, fd
+ , size, offset);
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int32_t
+nfs_fop_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)
+{
+ struct nfs_fop_local *nfl = NULL;
+ fop_truncate_cbk_t progcbk = NULL;
+
+ nfl_to_prog_data (this, nfl, progcbk, frame);
+ nfs_fop_restore_root_ino (nfl, prebuf, postbuf, NULL, NULL);
+ if (progcbk)
+ progcbk (frame, cookie, this, op_ret, op_errno, prebuf,postbuf);
+
+ nfs_stack_destroy (frame);
+ return 0;
+}
+
+
+int
+nfs_fop_truncate (xlator_t *xl, nfs_user_t *nfu, loc_t *loc, off_t offset,
+ fop_truncate_cbk_t cbk, void *local)
+{
+ call_frame_t *frame = NULL;
+ int ret = -EFAULT;
+ struct nfs_fop_local *nfl = NULL;
+
+ if ((!xl) || (!loc) || (!nfu))
+ return ret;
+
+ nfs_fop_handle_frame_create (frame, xl, nfu, ret, err);
+ nfs_fop_handle_local_init (frame, xl, nfl, cbk, local, ret, err);
+ nfs_fop_save_root_ino (nfl, loc);
+
+ STACK_WIND_COOKIE (frame, nfs_fop_truncate_cbk, xl, xl,
+ xl->fops->truncate, loc, offset);
+
+ ret = 0;
+err:
+ if (ret < 0) {
+ if (frame)
+ nfs_stack_destroy (frame);
+ }
+
+ return ret;
+}
+
+
+int
+nfs_fop_lookup_sync_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 *xattr,
+ struct iatt *postparent)
+{
+ nfs_syncfop_t *sf = frame->local;
+
+ if (!sf)
+ return -1;
+
+ if (op_ret == -1)
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync lookup failed: %s",
+ strerror (op_errno));
+ else
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync lookup done");
+
+ sf->replystub = fop_lookup_cbk_stub (frame, NULL, op_ret, op_errno,
+ inode, buf, xattr, postparent);
+ nfs_syncfop_notify (sf);
+ return 0;
+}
+
+
+call_stub_t *
+nfs_fop_lookup_sync (xlator_t *xl, nfs_user_t *nfu, loc_t *loc)
+{
+ nfs_syncfop_t *sf = NULL;
+ call_stub_t *reply = NULL;
+ int ret = -1;
+
+ if ((!xl) || (!loc) || (!nfu))
+ return NULL;
+
+ sf = nfs_syncfop_init ();
+ if (!sf) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "synclocal init failed");
+ goto err;
+ }
+
+ ret = nfs_fop_lookup (xl, nfu, loc, nfs_fop_lookup_sync_cbk, sf);
+ if (ret < 0) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "Sync lookup failed");
+ goto err;
+ }
+
+ reply = nfs_syncfop_wait (sf);
+
+err:
+ return reply;
+}
+
+
+
+int32_t
+nfs_fop_readdirp_sync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ gf_dirent_t *entries)
+{
+ nfs_syncfop_t *sf = frame->local;
+
+ if (op_ret == -1)
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync readdir failed: %s",
+ strerror (op_errno));
+ else
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync readdir done");
+
+ sf->replystub = fop_readdirp_cbk_stub (frame, NULL, op_ret, op_errno,
+ entries);
+
+ nfs_syncfop_notify (sf);
+ return 0;
+}
+
+
+/* This function does not update or map the st_dev in the d_stat of all the
+ * entries that were read. That mapping for the sync version of readdiring
+ * happens in the dcache.
+ */
+call_stub_t *
+nfs_fop_readdirp_sync (xlator_t *fopxl, nfs_user_t *nfu, fd_t *dirfd,
+ off_t offset, size_t bufsize)
+{
+ nfs_syncfop_t *sf = NULL;
+ call_stub_t *reply = NULL;
+ int ret = -1;
+
+ if ((!fopxl) || (!nfu) || (!dirfd))
+ return NULL;
+
+ sf = nfs_syncfop_init ();
+ if (!sf) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "sync fop local init failed");
+ goto ret;
+ }
+
+ ret = nfs_fop_readdirp (fopxl, nfu, dirfd, bufsize, offset,
+ nfs_fop_readdirp_sync_cbk, sf);
+ if (ret < 0) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "Fop readdir failed: %s",
+ strerror (-ret));
+ goto ret;
+ }
+
+ reply = nfs_syncfop_wait (sf);
+
+ret:
+ return reply;
+}
+
+
+
+nfs_syncfop_t *
+nfs_syncfop_init ()
+{
+ nfs_syncfop_t *sfl = NULL;
+
+ sfl = CALLOC (1, sizeof (*sfl));
+ if (!sfl) {
+ gf_log (GF_NFS, GF_LOG_ERROR, "Memory allocation failed");
+ return NULL;
+ }
+
+ sem_init (&sfl->replysig, 0, 0);
+
+ return sfl;
+}
+
+
+call_stub_t *
+nfs_syncfop_wait (nfs_syncfop_t *s)
+{
+ call_stub_t *replystub = NULL;
+
+ gf_log (GF_NFS, GF_LOG_TRACE, "Waiting for sync fop");
+ sem_wait (&s->replysig);
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync fop notification received");
+ replystub = s->replystub;
+ FREE (s);
+ return replystub;
+}
+
+
+void
+nfs_syncfop_notify (nfs_syncfop_t *s)
+{
+ sem_post (&s->replysig);
+ gf_log (GF_NFS, GF_LOG_TRACE, "Sync fop notified");
+}
+
+
+