diff options
Diffstat (limited to 'xlators/features/namespace/src')
| -rw-r--r-- | xlators/features/namespace/src/Makefile.am | 17 | ||||
| -rw-r--r-- | xlators/features/namespace/src/namespace.c | 1344 | ||||
| -rw-r--r-- | xlators/features/namespace/src/namespace.h | 23 |
3 files changed, 1384 insertions, 0 deletions
diff --git a/xlators/features/namespace/src/Makefile.am b/xlators/features/namespace/src/Makefile.am new file mode 100644 index 00000000000..e355d42cf4e --- /dev/null +++ b/xlators/features/namespace/src/Makefile.am @@ -0,0 +1,17 @@ +xlator_LTLIBRARIES = namespace.la +xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features + +namespace_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS) + +namespace_la_SOURCES = namespace.c +namespace_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la + +noinst_HEADERS = namespace.h + +AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ + -I$(top_srcdir)/rpc/xdr/src -I$(top_builddir)/rpc/xdr/src \ + -I$(top_srcdir)/xlators/lib/src + +AM_CFLAGS = -Wall $(GF_CFLAGS) + +CLEANFILES = diff --git a/xlators/features/namespace/src/namespace.c b/xlators/features/namespace/src/namespace.c new file mode 100644 index 00000000000..86c5ebee900 --- /dev/null +++ b/xlators/features/namespace/src/namespace.c @@ -0,0 +1,1344 @@ +/* + * 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. + * + * xlators/features/namespace: + * This translator tags each request with a namespace hash, + * which then can be used in later translators to track and + * throttle fops per namespace. + */ + +#include <sys/types.h> + +#include <glusterfs/defaults.h> +#include <glusterfs/hashfn.h> +#include <glusterfs/logging.h> +#include "namespace.h" + +/* Return codes for common path parsing functions. */ +enum _path_parse_result { + PATH_PARSE_RESULT_NO_PATH = 0, + PATH_PARSE_RESULT_FOUND = 1, + PATH_PARSE_RESULT_IS_GFID = 2, +}; + +typedef enum _path_parse_result path_parse_result_t; + +/* Clean up an ns_local struct. Wipe a loc (its inode is ref'd, so we're good.) + */ +static inline void +ns_local_cleanup(ns_local_t *local) +{ + if (!local) { + return; + } + + loc_wipe(&local->loc); + GF_FREE(local); +} + +/* Create a new ns_local. We ref the inode, fake a new loc struct, and stash + * the stub given to us. */ +static inline ns_local_t * +ns_local_new(call_stub_t *stub, inode_t *inode) +{ + ns_local_t *local = NULL; + loc_t loc = { + 0, + }; + + if (!stub || !inode) { + goto out; + } + + local = GF_CALLOC(1, sizeof(ns_local_t), 0); + if (local == NULL) { + goto out; + } + + /* Set up a fake loc_t struct to give to the getxattr call. */ + gf_uuid_copy(loc.gfid, inode->gfid); + loc.inode = inode_ref(inode); + + /* If for some reason inode_ref() fails, then just give up. */ + if (!loc.inode) { + GF_FREE(local); + goto out; + } + + local->stub = stub; + local->loc = loc; + +out: + return local; +} + +/* Try parsing a path string. If the path string is a GFID, then return + * with PATH_PARSE_RESULT_IS_GFID. If we have no namespace (i.e. '/') then + * return PATH_PARSE_RESULT_NO_PATH and set the hash to 1. Otherwise, hash the + * namespace and store it in the info struct. */ +static path_parse_result_t +parse_path(ns_info_t *info, const char *path) +{ + int len = 0; + const char *ns_begin = path; + const char *ns_end = NULL; + + if (!path || strlen(path) == 0) { + return PATH_PARSE_RESULT_NO_PATH; + } + + if (path[0] == '<') { + return PATH_PARSE_RESULT_IS_GFID; + } + + /* Right now we only want the top-level directory, so + * skip the initial '/' and read until the next '/'. */ + while (*ns_begin == '/') { + ns_begin++; + } + + /* ns_end will point to the next '/' or NULL if there is no delimiting + * '/' (i.e. "/directory" or the top level "/") */ + ns_end = strchr(ns_begin, '/'); + len = ns_end ? (ns_end - ns_begin) : strlen(ns_begin); + + if (len != 0) { + info->hash = SuperFastHash(ns_begin, len); + } else { + /* If our substring is empty, then we can hash '/' instead. + * '/' is used in the namespace config for the top-level + * namespace. */ + info->hash = SuperFastHash("/", 1); + } + + info->found = _gf_true; + return PATH_PARSE_RESULT_FOUND; +} + +/* Cache namespace info stored in the stack (info) into the inode. */ +static int +ns_inode_ctx_put(inode_t *inode, xlator_t *this, ns_info_t *info) +{ + ns_info_t *cached_ns_info = NULL; + uint64_t ns_as_64 = 0; + int ret = -1; + + if (!inode || !this) { + gf_log(this ? this->name : "namespace", GF_LOG_WARNING, + "Need a valid inode and xlator to cache ns_info."); + ret = -1; + goto out; + } + + cached_ns_info = GF_CALLOC(1, sizeof(ns_info_t), 0); + + /* If we've run out of memory, then return ENOMEM. */ + if (cached_ns_info == NULL) { + gf_log(this->name, GF_LOG_WARNING, "No memory to cache ns_info."); + ret = -(ENOMEM); + goto out; + } + + *cached_ns_info = *info; + ns_as_64 = (uint64_t)(uintptr_t)cached_ns_info; + + ret = inode_ctx_put(inode, this, ns_as_64); + + if (ret) { + goto out; + } + + ret = 0; +out: + if (ret && cached_ns_info) { + GF_FREE(cached_ns_info); + } + + return ret; +} + +/* Retrieve namespace info cached in the inode into the stack for use in later + * translators. */ +static int +ns_inode_ctx_get(inode_t *inode, xlator_t *this, ns_info_t *info) +{ + ns_info_t *cached_ns_info = NULL; + uint64_t ns_as_64 = 0; + int ret = -1; + + if (!inode) { + ret = -ENOENT; + goto out; + } + + ret = inode_ctx_get(inode, this, &ns_as_64); + + if (!ret) { + cached_ns_info = (ns_info_t *)(uintptr_t)ns_as_64; + *info = *cached_ns_info; + } + +out: + return ret; +} + +/* This callback is the top of the unwind path of our attempt to get the path + * manually from the posix translator. We'll try to parse the path returned + * if it exists, then cache the hash if possible. Then just return to the + * default stub that we provide in the local, since there's nothing else to do + * once we've gotten the namespace hash. */ +int32_t +get_path_resume_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *dict, + dict_t *xdata) +{ + path_parse_result_t ret = PATH_PARSE_RESULT_NO_PATH; + call_frame_t *resume_frame = NULL; + ns_local_t *local = NULL; + call_stub_t *stub = NULL; + ns_info_t *info = NULL; + char *path = NULL; + + GF_VALIDATE_OR_GOTO(this->name, frame, out); + local = frame->local; + + GF_VALIDATE_OR_GOTO(this->name, local, out); + stub = local->stub; + + GF_VALIDATE_OR_GOTO(this->name, stub, out); + /* Get the ns_info from the frame that we will eventually resume, + * not the frame that we're going to destroy (frame). */ + resume_frame = stub->frame; + + GF_VALIDATE_OR_GOTO(this->name, resume_frame, out); + GF_VALIDATE_OR_GOTO(this->name, resume_frame->root, out); + info = &resume_frame->root->ns_info; + + GF_VALIDATE_OR_GOTO(this->name, dict, out); + + /* If we get a value back for the GET_ANCESTRY_PATH_KEY, then we + * try to access it and parse it like a path. */ + if (!op_ret && !dict_get_str(dict, GET_ANCESTRY_PATH_KEY, &path)) { + gf_log(this->name, GF_LOG_DEBUG, "G>P %s retrieved path %s", + uuid_utoa(local->loc.gfid), path); + /* Now let's parse a path, finally. */ + ret = parse_path(info, path); + } + + if (ret == PATH_PARSE_RESULT_FOUND) { + /* If we finally found namespace, then stash it. */ + ns_inode_ctx_put(local->loc.inode, this, info); + + gf_log(this->name, GF_LOG_DEBUG, "G>P %s %10u namespace found %s", + uuid_utoa(local->loc.inode->gfid), info->hash, path); + } else if (ret == PATH_PARSE_RESULT_NO_PATH) { + gf_log(this->name, GF_LOG_WARNING, "G>P %s has no path", + uuid_utoa(local->loc.inode->gfid)); + } else if (ret == PATH_PARSE_RESULT_IS_GFID) { + gf_log(this->name, GF_LOG_WARNING, + "G>P %s winding failed, still have gfid", + uuid_utoa(local->loc.inode->gfid)); + } + +out: + /* Make sure to clean up local finally. */ + + if (frame) { + frame->local = NULL; + STACK_DESTROY(frame->root); + } + + if (local) { + ns_local_cleanup(local); + } + + if (stub) { + call_resume(stub); + } + + return 0; +} + +/* This function tries first to set a namespace based on the information that + * it can retrieve from an `loc_t`. This includes first looking for a cached + * namespace in the inode, then trying to parse the path string in the `loc_t` + * struct. If this fails, then it will try to call inode_path. */ +static path_parse_result_t +set_ns_from_loc(const char *fn, call_frame_t *frame, xlator_t *this, loc_t *loc) +{ + path_parse_result_t ret = PATH_PARSE_RESULT_NO_PATH; + ns_private_t *priv = (ns_private_t *)this->private; + ns_info_t *info = &frame->root->ns_info; + char *path = NULL; + + info->hash = 0; + info->found = _gf_false; + + if (!priv->tag_namespaces) { + return ret; + } + + /* This is our first pass at trying to get a path. Try getting + * from the inode context, then from the loc's path itself. */ + if (!loc || !loc->path || !loc->inode) { + ret = PATH_PARSE_RESULT_NO_PATH; + } else if (!ns_inode_ctx_get(loc->inode, this, info)) { + ret = PATH_PARSE_RESULT_FOUND; + } else { + ret = parse_path(info, loc->path); + gf_log(this->name, GF_LOG_DEBUG, "%s: LOC retrieved path %s", fn, + loc->path); + + if (ret == PATH_PARSE_RESULT_FOUND) { + ns_inode_ctx_put(loc->inode, this, info); + } + } + + /* Keep trying by calling inode_path next, making sure to copy + the loc's gfid into its inode if necessary. */ + if (ret == PATH_PARSE_RESULT_IS_GFID) { + if (gf_uuid_is_null(loc->inode->gfid)) { + gf_uuid_copy(loc->inode->gfid, loc->gfid); + } + + if (inode_path(loc->inode, NULL, &path) >= 0 && path) { + ret = parse_path(info, loc->path); + gf_log(this->name, GF_LOG_DEBUG, "%s: LOC retrieved path %s", fn, + path); + + if (ret == PATH_PARSE_RESULT_FOUND) { + ns_inode_ctx_put(loc->inode, this, info); + } + } + + if (path) { + GF_FREE(path); + } + } + + /* Report our status, and if we have a GFID, we'll eventually try a + * GET_ANCESTRY_PATH_KEY wind when we return from this function. */ + if (ret == PATH_PARSE_RESULT_FOUND) { + gf_log(this->name, GF_LOG_DEBUG, + "%s: LOC %s %10u namespace found for %s", fn, + uuid_utoa(loc->inode->gfid), info->hash, loc->path); + } else if (ret == PATH_PARSE_RESULT_NO_PATH) { + gf_log(this->name, GF_LOG_WARNING, "%s: LOC has no path", fn); + } else if (ret == PATH_PARSE_RESULT_IS_GFID) { + /* Make sure to copy the inode's gfid for the eventual wind. */ + if (gf_uuid_is_null(loc->inode->gfid)) { + gf_uuid_copy(loc->inode->gfid, loc->gfid); + } + + gf_log(this->name, GF_LOG_DEBUG, "%s: LOC %s winding, looking for path", + fn, uuid_utoa(loc->inode->gfid)); + } + + return ret; +} + +/* This function tries first to set a namespace based on the information that + * it can retrieve from an `fd_t`. This includes first looking for a cached + * namespace in the inode, then trying to call inode_path manually. */ +static path_parse_result_t +set_ns_from_fd(const char *fn, call_frame_t *frame, xlator_t *this, fd_t *fd) +{ + path_parse_result_t ret = PATH_PARSE_RESULT_NO_PATH; + ns_private_t *priv = (ns_private_t *)this->private; + ns_info_t *info = &frame->root->ns_info; + char *path = NULL; + + info->hash = 0; + info->found = _gf_false; + + if (!priv->tag_namespaces) { + return ret; + } + + /* This is our first pass at trying to get a path. Try getting + * from the inode context, then inode_path. */ + if (!fd || !fd->inode) { + ret = PATH_PARSE_RESULT_NO_PATH; + } else if (!ns_inode_ctx_get(fd->inode, this, info)) { + ret = PATH_PARSE_RESULT_FOUND; + } else if (inode_path(fd->inode, NULL, &path) >= 0 && path) { + ret = parse_path(info, path); + gf_log(this->name, GF_LOG_DEBUG, "%s: FD retrieved path %s", fn, path); + + if (ret == PATH_PARSE_RESULT_FOUND) { + ns_inode_ctx_put(fd->inode, this, info); + } + } + + if (path) { + GF_FREE(path); + } + + /* Report our status, and if we have a GFID, we'll eventually try a + * GET_ANCESTRY_PATH_KEY wind when we return from this function. */ + if (ret == PATH_PARSE_RESULT_FOUND) { + gf_log(this->name, GF_LOG_DEBUG, "%s: FD %s %10u namespace found", fn, + uuid_utoa(fd->inode->gfid), info->hash); + } else if (ret == PATH_PARSE_RESULT_NO_PATH) { + gf_log(this->name, GF_LOG_WARNING, "%s: FD has no path", fn); + } else if (ret == PATH_PARSE_RESULT_IS_GFID) { + gf_log(this->name, GF_LOG_DEBUG, "%s: FD %s winding, looking for path", + fn, uuid_utoa(fd->inode->gfid)); + } + + return ret; +} + +/* This macro does the work of winding down a call of `getxattr` in the case + * that we have to retrieve the path manually. It assumes that there is a label + * called `wind` and the existence of several basic variables (frame, this), + * but otherwise is general enough for any fop (fd- or loc-based.) */ +#define GET_ANCESTRY_PATH_WIND(fop, inode, args...) \ + do { \ + ns_info_t *info = &frame->root->ns_info; \ + call_frame_t *new_frame = NULL; \ + ns_local_t *local = NULL; \ + call_stub_t *stub = NULL; \ + \ + gf_log(this->name, GF_LOG_DEBUG, " %s winding, looking for path", \ + uuid_utoa(inode->gfid)); \ + \ + new_frame = create_frame(this, this->ctx->pool); \ + if (!new_frame) { \ + gf_log(this->name, GF_LOG_ERROR, \ + "Cannot allocate new call frame."); \ + goto wind; \ + } \ + \ + stub = fop_##fop##_stub(frame, default_##fop, args); \ + if (!stub) { \ + gf_log(this->name, GF_LOG_ERROR, \ + "Cannot allocate function stub."); \ + goto wind; \ + } \ + \ + new_frame->root->uid = 0; \ + new_frame->root->gid = 0; \ + /* Put a phony "not found" NS info into this call. */ \ + new_frame->root->ns_info = *info; \ + \ + local = ns_local_new(stub, inode); \ + if (!local) { \ + gf_log(this->name, GF_LOG_ERROR, \ + "Cannot allocate function local."); \ + goto wind; \ + } \ + \ + new_frame->local = local; \ + /* After allocating a new frame, a call stub (to \ + * resume our current fop), and a local variables \ + * struct (for our loc to getxattr and our resume \ + * stub), call getxattr and unwind to get_path_resume_cbk. \ + */ \ + STACK_WIND(new_frame, get_path_resume_cbk, FIRST_CHILD(this), \ + FIRST_CHILD(this)->fops->getxattr, &local->loc, \ + GET_ANCESTRY_PATH_KEY, NULL); \ + } while (0) + +int32_t +ns_rmdir(call_frame_t *frame, xlator_t *this, loc_t *loc, int xflags, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(rmdir, loc->inode, loc, xflags, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_rmdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rmdir, loc, xflags, xdata); + return 0; +} + +int32_t +ns_unlink(call_frame_t *frame, xlator_t *this, loc_t *loc, int xflags, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(unlink, loc->inode, loc, xflags, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, xflags, xdata); + return 0; +} + +int32_t +ns_rename(call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, + newloc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(rename, newloc->inode, oldloc, newloc, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_rename_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rename, oldloc, newloc, xdata); + return 0; +} + +int32_t +ns_link(call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, + newloc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(link, newloc->inode, oldloc, newloc, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_link_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->link, oldloc, newloc, xdata); + return 0; +} + +int32_t +ns_mkdir(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + mode_t umask, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(mkdir, loc->inode, loc, mode, umask, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_mkdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mkdir, loc, mode, umask, xdata); + return 0; +} + +int32_t +ns_symlink(call_frame_t *frame, xlator_t *this, const char *linkname, + loc_t *loc, mode_t umask, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(symlink, loc->inode, linkname, loc, umask, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_symlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->symlink, linkname, loc, umask, xdata); + return 0; +} + +int32_t +ns_mknod(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + dev_t dev, mode_t umask, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(mknod, loc->inode, loc, mode, dev, umask, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_mknod_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mknod, loc, mode, dev, umask, xdata); + return 0; +} + +int32_t +ns_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) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(create, loc->inode, loc, flags, mode, umask, fd, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_create_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->create, loc, flags, mode, umask, fd, + xdata); + return 0; +} + +int32_t +ns_fsetattr(call_frame_t *frame, xlator_t *this, fd_t *fd, struct iatt *stbuf, + int32_t valid, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fsetattr, fd->inode, fd, stbuf, valid, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fsetattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetattr, fd, stbuf, valid, xdata); + return 0; +} + +int32_t +ns_setattr(call_frame_t *frame, xlator_t *this, loc_t *loc, struct iatt *stbuf, + int32_t valid, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(setattr, loc->inode, loc, stbuf, valid, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_setattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setattr, loc, stbuf, valid, xdata); + return 0; +} + +int32_t +ns_fremovexattr(call_frame_t *frame, xlator_t *this, fd_t *fd, const char *name, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fremovexattr, fd->inode, fd, name, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fremovexattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fremovexattr, fd, name, xdata); + return 0; +} + +int32_t +ns_removexattr(call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(removexattr, loc->inode, loc, name, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_removexattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, loc, name, xdata); + return 0; +} + +int32_t +ns_setxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, + int32_t flags, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(setxattr, loc->inode, loc, dict, flags, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_setxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->setxattr, loc, dict, flags, xdata); + return 0; +} + +int32_t +ns_fsetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, + int32_t flags, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fsetxattr, fd->inode, fd, dict, flags, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fsetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); + return 0; +} + +int32_t +ns_truncate(call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(truncate, loc->inode, loc, offset, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_truncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); + return 0; +} + +int32_t +ns_ftruncate(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(ftruncate, fd->inode, fd, offset, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_ftruncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); + return 0; +} + +int32_t +ns_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) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(writev, fd->inode, fd, vector, count, offset, + flags, iobref, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_writev_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->writev, fd, vector, count, offset, + flags, iobref, xdata); + return 0; +} + +int32_t +ns_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(lookup, loc->inode, loc, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xdata); + return 0; +} + +int32_t +ns_stat(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(stat, loc->inode, loc, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_stat_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->stat, loc, xdata); + return 0; +} + +int32_t +ns_fstat(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fstat, fd->inode, fd, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fstat_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fstat, fd, xdata); + return 0; +} + +int32_t +ns_readlink(call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(readlink, loc->inode, loc, size, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_readlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readlink, loc, size, xdata); + return 0; +} + +int32_t +ns_access(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(access, loc->inode, loc, mask, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_access_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->access, loc, mask, xdata); + return 0; +} + +int32_t +ns_open(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + fd_t *fd, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(open, fd->inode, loc, flags, fd, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_open_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->open, loc, flags, fd, xdata); + return 0; +} + +int32_t +ns_readv(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, uint32_t flags, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(readv, fd->inode, fd, size, offset, flags, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_readv_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readv, fd, size, offset, flags, xdata); + return 0; +} + +int32_t +ns_flush(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(flush, fd->inode, fd, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_flush_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->flush, fd, xdata); + return 0; +} + +int32_t +ns_fsync(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fsync, fd->inode, fd, datasync, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fsync_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsync, fd, datasync, xdata); + return 0; +} + +int32_t +ns_opendir(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(opendir, loc->inode, loc, fd, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_opendir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, loc, fd, xdata); + return 0; +} + +int32_t +ns_fsyncdir(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync, + dict_t *xdata) + +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fsyncdir, fd->inode, fd, datasync, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fsyncdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsyncdir, fd, datasync, xdata); + return 0; +} + +int32_t +ns_rchecksum(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + int32_t len, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(rchecksum, fd->inode, fd, offset, len, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_rchecksum_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->rchecksum, fd, offset, len, xdata); + return 0; +} + +int32_t +ns_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(statfs, loc->inode, loc, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_statfs_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->statfs, loc, xdata); + return 0; +} + +int32_t +ns_inodelk(call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, + int32_t cmd, struct gf_flock *flock, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(inodelk, loc->inode, volume, loc, cmd, flock, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_inodelk_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->inodelk, volume, loc, cmd, flock, + xdata); + return 0; +} + +int32_t +ns_finodelk(call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, + int32_t cmd, struct gf_flock *flock, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(finodelk, fd->inode, volume, fd, cmd, flock, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_finodelk_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->finodelk, volume, fd, cmd, flock, + xdata); + return 0; +} + +int32_t +ns_entrylk(call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, + const char *basename, entrylk_cmd cmd, entrylk_type type, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(entrylk, loc->inode, volume, loc, basename, cmd, + type, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_entrylk_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->entrylk, volume, loc, basename, cmd, + type, xdata); + return 0; +} + +int32_t +ns_fentrylk(call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, + const char *basename, entrylk_cmd cmd, entrylk_type type, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fentrylk, fd->inode, volume, fd, basename, cmd, + type, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fentrylk_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fentrylk, volume, fd, basename, cmd, + type, xdata); + return 0; +} + +int32_t +ns_fgetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, const char *name, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fgetxattr, fd->inode, fd, name, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fgetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fgetxattr, fd, name, xdata); + return 0; +} + +int32_t +ns_getxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, const char *name, + dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(getxattr, loc->inode, loc, name, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_getxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, loc, name, xdata); + return 0; +} + +int32_t +ns_lk(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd, + struct gf_flock *flock, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(lk, fd->inode, fd, cmd, flock, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_lk_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lk, fd, cmd, flock, xdata); + return 0; +} + +int32_t +ns_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(readdir, fd->inode, fd, size, offset, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_readdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdir, fd, size, offset, xdata); + + return 0; +} + +int32_t +ns_readdirp(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, dict_t *dict) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(readdirp, fd->inode, fd, size, offset, dict); + return 0; + } +wind: + STACK_WIND(frame, default_readdirp_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdirp, fd, size, offset, dict); + return 0; +} + +int32_t +ns_xattrop(call_frame_t *frame, xlator_t *this, loc_t *loc, + gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_loc(__FUNCTION__, frame, this, loc); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(xattrop, loc->inode, loc, flags, dict, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_xattrop_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->xattrop, loc, flags, dict, xdata); + + return 0; +} + +int32_t +ns_fxattrop(call_frame_t *frame, xlator_t *this, fd_t *fd, + gf_xattrop_flags_t flags, dict_t *dict, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fxattrop, fd->inode, fd, flags, dict, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fxattrop_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fxattrop, fd, flags, dict, xdata); + + return 0; +} + +int32_t +ns_getspec(call_frame_t *frame, xlator_t *this, const char *key, int32_t flag) +{ + STACK_WIND(frame, default_getspec_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getspec, key, flag); + return 0; +} + +int32_t +ns_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t keep_size, + off_t offset, size_t len, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(fallocate, fd->inode, fd, keep_size, offset, len, + xdata); + return 0; + } +wind: + STACK_WIND(frame, default_fallocate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, keep_size, offset, len, + xdata); + return 0; +} + +int32_t +ns_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + size_t len, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(discard, fd->inode, fd, offset, len, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_discard_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->discard, fd, offset, len, xdata); + return 0; +} + +int32_t +ns_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + off_t len, dict_t *xdata) +{ + path_parse_result_t ret = set_ns_from_fd(__FUNCTION__, frame, this, fd); + + if (ret == PATH_PARSE_RESULT_IS_GFID) { + GET_ANCESTRY_PATH_WIND(zerofill, fd->inode, fd, offset, len, xdata); + return 0; + } +wind: + STACK_WIND(frame, default_zerofill_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->zerofill, fd, offset, len, xdata); + return 0; +} + +int +ns_forget(xlator_t *this, inode_t *inode) +{ + uint64_t ns_as_64 = 0; + ns_info_t *info = NULL; + + inode_ctx_del(inode, this, &ns_as_64); + + if (!ns_as_64) { + return 0; + } + + info = (ns_info_t *)(uintptr_t)ns_as_64; + GF_FREE(info); + + return 0; +} + +int32_t +init(xlator_t *this) +{ + int32_t ret = -1; + ns_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO(GF_NAMESPACE, this, out); + + if (!this->children || this->children->next) { + gf_log(this->name, GF_LOG_ERROR, + "translator needs a single subvolume."); + goto out; + } + + if (!this->parents) { + gf_log(this->name, GF_LOG_ERROR, + "dangling volume. please check volfile."); + goto out; + } + + priv = GF_CALLOC(1, sizeof(ns_private_t), 0); + + if (!priv) { + gf_log(this->name, GF_LOG_ERROR, "Can't allocate ns_priv structure."); + goto out; + } + + GF_OPTION_INIT("tag-namespaces", priv->tag_namespaces, bool, out); + + gf_log(this->name, GF_LOG_INFO, "Namespace xlator loaded"); + this->private = priv; + ret = 0; + +out: + if (ret) { + GF_FREE(priv); + } + + return ret; +} + +void +fini(xlator_t *this) +{ + GF_FREE(this->private); +} + +int +reconfigure(xlator_t *this, dict_t *options) +{ + int ret = -1; + ns_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + GF_VALIDATE_OR_GOTO(this->name, options, out); + + priv = (ns_private_t *)this->private; + + GF_OPTION_RECONF("tag-namespaces", priv->tag_namespaces, options, bool, + out); + + ret = 0; +out: + return ret; +} + +struct xlator_fops fops = { + .lookup = ns_lookup, + .stat = ns_stat, + .fstat = ns_fstat, + .truncate = ns_truncate, + .ftruncate = ns_ftruncate, + .access = ns_access, + .readlink = ns_readlink, + .mknod = ns_mknod, + .mkdir = ns_mkdir, + .unlink = ns_unlink, + .rmdir = ns_rmdir, + .symlink = ns_symlink, + .rename = ns_rename, + .link = ns_link, + .create = ns_create, + .open = ns_open, + .readv = ns_readv, + .writev = ns_writev, + .flush = ns_flush, + .fsync = ns_fsync, + .opendir = ns_opendir, + .readdir = ns_readdir, + .readdirp = ns_readdirp, + .fsyncdir = ns_fsyncdir, + .statfs = ns_statfs, + .setxattr = ns_setxattr, + .getxattr = ns_getxattr, + .fsetxattr = ns_fsetxattr, + .fgetxattr = ns_fgetxattr, + .removexattr = ns_removexattr, + .fremovexattr = ns_fremovexattr, + .lk = ns_lk, + .inodelk = ns_inodelk, + .finodelk = ns_finodelk, + .entrylk = ns_entrylk, + .fentrylk = ns_fentrylk, + .rchecksum = ns_rchecksum, + .xattrop = ns_xattrop, + .fxattrop = ns_fxattrop, + .setattr = ns_setattr, + .fsetattr = ns_fsetattr, + .getspec = ns_getspec, + .fallocate = ns_fallocate, + .discard = ns_discard, + .zerofill = ns_zerofill, +}; + +struct xlator_cbks cbks = { + .forget = ns_forget, +}; + +struct xlator_dumpops dumpops; + +struct volume_options options[] = { + { + .key = {"tag-namespaces"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "off", + .description = "This option enables this translator's functionality " + "that tags every fop with a namespace hash for later " + "throttling, stats collection, logging, etc.", + .op_version = {GD_OP_VERSION_4_1_0}, + .tags = {"namespace"}, + .flags = OPT_FLAG_SETTABLE | OPT_FLAG_CLIENT_OPT | OPT_FLAG_DOC, + }, + {.key = {NULL}}, +}; + +xlator_api_t xlator_api = { + .init = init, + .fini = fini, + .reconfigure = reconfigure, + .op_version = {GD_OP_VERSION_3_12_0}, + .dumpops = &dumpops, + .fops = &fops, + .cbks = &cbks, + .options = options, + .identifier = "namespace", + .category = GF_TECH_PREVIEW, +}; diff --git a/xlators/features/namespace/src/namespace.h b/xlators/features/namespace/src/namespace.h new file mode 100644 index 00000000000..3a9b84d6426 --- /dev/null +++ b/xlators/features/namespace/src/namespace.h @@ -0,0 +1,23 @@ +#ifndef __NAMESPACE_H__ +#define __NAMESPACE_H__ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include <glusterfs/xlator.h> +#include <glusterfs/call-stub.h> + +#define GF_NAMESPACE "namespace" + +typedef struct { + gf_boolean_t tag_namespaces; +} ns_private_t; + +typedef struct { + loc_t loc; /* We store a "fake" loc_t for the getxattr wind. */ + call_stub_t *stub; /* A stub back to the function we're resuming. */ +} ns_local_t; + +#endif /* __NAMESPACE_H__ */ |