diff options
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
| -rw-r--r-- | xlators/storage/posix/src/posix.c | 70 |
1 files changed, 56 insertions, 14 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c index 6d7fc24b2da..1e139e5c32b 100644 --- a/xlators/storage/posix/src/posix.c +++ b/xlators/storage/posix/src/posix.c @@ -109,6 +109,37 @@ static char *disallow_removexattrs[] = { NULL }; +gf_boolean_t +posix_symlinks_match (xlator_t *this, loc_t *loc, uuid_t gfid) +{ + struct posix_private *priv = NULL; + char linkname_actual[PATH_MAX] = {0,}; + char linkname_expected[PATH_MAX] = {0}; + char *dir_handle = NULL; + size_t len = 0; + size_t handle_size = 0; + gf_boolean_t ret = _gf_false; + + priv = this->private; + handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length); + dir_handle = alloca0 (handle_size); + + snprintf (linkname_expected, handle_size, "../../%02x/%02x/%s/%s", + loc->pargfid[0], loc->pargfid[1], uuid_utoa (loc->pargfid), + loc->name); + + MAKE_HANDLE_GFID_PATH (dir_handle, this, gfid, NULL); + len = sys_readlink (dir_handle, linkname_actual, PATH_MAX); + if (len < 0) + goto out; + linkname_actual[len] = '\0'; + + if (!strncmp (linkname_actual, linkname_expected, handle_size)) + ret = _gf_true; + +out: + return ret; +} dict_t* posix_dict_set_nlink (dict_t *req, dict_t *res, int32_t nlink) @@ -1573,19 +1604,29 @@ posix_mkdir (call_frame_t *frame, xlator_t *this, posix_handle_path (this, uuid_req, NULL, gfid_path, size); - gf_msg (this->name, GF_LOG_WARNING, 0, - P_MSG_DIR_OF_SAME_ID, "mkdir (%s): gfid (%s) " - "is already associated with directory (%s). " - "Hence, both directories will share same gfid " - "and this can lead to inconsistencies.", - loc->path, uuid_utoa (uuid_req), - gfid_path ? gfid_path : "<NULL>"); - - gf_event (EVENT_POSIX_SAME_GFID, "gfid=%s;path=%s;" - "newpath=%s;brick=%s:%s", - uuid_utoa (uuid_req), - gfid_path ? gfid_path : "<NULL>", loc->path, - priv->hostname, priv->base_path); + if (frame->root->pid != GF_CLIENT_PID_SELF_HEALD) { + gf_msg (this->name, GF_LOG_WARNING, 0, + P_MSG_DIR_OF_SAME_ID, "mkdir (%s): " + "gfid (%s) is already associated with " + "directory (%s). Hence, both " + "directories will share same gfid and " + "this can lead to inconsistencies.", + loc->path, uuid_utoa (uuid_req), + gfid_path ? gfid_path : "<NULL>"); + + gf_event (EVENT_POSIX_SAME_GFID, "gfid=%s;" + "path=%s;newpath=%s;brick=%s:%s", + uuid_utoa (uuid_req), + gfid_path ? gfid_path : "<NULL>", + loc->path, priv->hostname, + priv->base_path); + } + if (!posix_symlinks_match (this, loc, uuid_req)) + /* For afr selfheal of dir renames, we need to + * remove the old symlink in order for + * posix_gfid_set to set the symlink to the + * new dir.*/ + posix_handle_unset (this, stbuf.ia_gfid, NULL); } } else if (!uuid_req && frame->root->pid != GF_SERVER_PID_TRASH) { op_ret = -1; @@ -2276,7 +2317,8 @@ posix_rmdir (call_frame_t *frame, xlator_t *this, op_errno = errno; if (op_ret == 0) { - posix_handle_unset (this, stbuf.ia_gfid, NULL); + if (posix_symlinks_match (this, loc, stbuf.ia_gfid)) + posix_handle_unset (this, stbuf.ia_gfid, NULL); } if (op_errno == EEXIST) |