diff options
Diffstat (limited to 'xlators/features')
| -rw-r--r-- | xlators/features/index/src/index.c | 581 | ||||
| -rw-r--r-- | xlators/features/index/src/index.h | 15 |
2 files changed, 501 insertions, 95 deletions
diff --git a/xlators/features/index/src/index.c b/xlators/features/index/src/index.c index 5de8d9b4668..1d64ef2bf6e 100644 --- a/xlators/features/index/src/index.c +++ b/xlators/features/index/src/index.c @@ -13,6 +13,7 @@ #include "syscall.h" #define XATTROP_SUBDIR "xattrop" +#define DIRTY_SUBDIR "dirty" call_stub_t * __index_dequeue (struct list_head *callstubs) @@ -77,6 +78,7 @@ index_worker (void *data) return NULL; } + int __index_inode_ctx_get (inode_t *inode, xlator_t *this, index_inode_ctx_t **ctx) { @@ -234,17 +236,17 @@ make_file_path (char *base, const char *subdir, const char *filename, } static int -is_index_file_current (char *filename, uuid_t priv_index) +is_index_file_current (char *filename, uuid_t priv_index, char *subdir) { char current_index[GF_UUID_BUF_SIZE + 16] = {0, }; snprintf (current_index, sizeof current_index, - "xattrop-%s", uuid_utoa(priv_index)); + "%s-%s", subdir, uuid_utoa(priv_index)); return (!strcmp(filename, current_index)); } static void -check_delete_stale_index_file (xlator_t *this, char *filename) +check_delete_stale_index_file (xlator_t *this, char *filename, char *subdir) { int ret = 0; struct stat st = {0}; @@ -253,16 +255,105 @@ check_delete_stale_index_file (xlator_t *this, char *filename) priv = this->private; - if (is_index_file_current (filename, priv->index)) + if (is_index_file_current (filename, priv->index, subdir)) return; - make_file_path (priv->index_basepath, XATTROP_SUBDIR, + make_file_path (priv->index_basepath, subdir, filename, filepath, sizeof (filepath)); ret = sys_stat (filepath, &st); if (!ret && st.st_nlink == 1) sys_unlink (filepath); } +static void +index_set_link_count (index_priv_t *priv, int64_t count, + index_xattrop_type_t type) +{ + switch (type) { + case PENDING: + LOCK (&priv->lock); + { + priv->pending_count = count; + } + UNLOCK (&priv->lock); + break; + default: + break; + } +} + +static void +index_get_link_count (index_priv_t *priv, int64_t *count, + index_xattrop_type_t type) +{ + switch (type) { + case PENDING: + LOCK (&priv->lock); + { + *count = priv->pending_count; + } + UNLOCK (&priv->lock); + break; + default: + break; + } +} + +static void +index_dec_link_count (index_priv_t *priv, index_xattrop_type_t type) +{ + switch (type) { + case PENDING: + LOCK (&priv->lock); + { + priv->pending_count--; + if (priv->pending_count == 0) + priv->pending_count--; + } + UNLOCK (&priv->lock); + break; + default: + break; + } +} + +int +index_get_type_from_vgfid (index_priv_t *priv, uuid_t vgfid) +{ + if (!gf_uuid_compare (priv->xattrop_vgfid, vgfid)) + return PENDING; + if (!gf_uuid_compare (priv->dirty_vgfid, vgfid)) { + return DIRTY; + } + return -1; +} + +char* +index_get_subdir_from_vgfid (index_priv_t *priv, uuid_t vgfid) +{ + + if (!gf_uuid_compare (priv->xattrop_vgfid, vgfid)) + return XATTROP_SUBDIR; + if (!gf_uuid_compare (priv->dirty_vgfid, vgfid)) { + return DIRTY_SUBDIR; + } + return NULL; +} + +char* +index_get_subdir_from_type (index_xattrop_type_t type) +{ + + switch (type) { + case PENDING: + return XATTROP_SUBDIR; + case DIRTY: + return DIRTY_SUBDIR; + default: + return NULL; + } +} + static int index_fill_readdir (fd_t *fd, index_fd_ctx_t *fctx, DIR *dir, off_t off, size_t size, gf_dirent_t *entries) @@ -321,7 +412,13 @@ index_fill_readdir (fd_t *fd, index_fd_ctx_t *fctx, DIR *dir, off_t off, if (!strncmp (entry->d_name, XATTROP_SUBDIR"-", strlen (XATTROP_SUBDIR"-"))) { - check_delete_stale_index_file (this, entry->d_name); + check_delete_stale_index_file (this, entry->d_name, + XATTROP_SUBDIR); + continue; + } else if (!strncmp (entry->d_name, DIRTY_SUBDIR"-", + strlen (DIRTY_SUBDIR"-"))) { + check_delete_stale_index_file (this, entry->d_name, + DIRTY_SUBDIR); continue; } @@ -382,7 +479,8 @@ out: } int -index_add (xlator_t *this, uuid_t gfid, const char *subdir) +index_add (xlator_t *this, uuid_t gfid, const char *subdir, + index_xattrop_type_t type) { int32_t op_errno = 0; char gfid_path[PATH_MAX] = {0}; @@ -451,7 +549,7 @@ out: } int -index_del (xlator_t *this, uuid_t gfid, const char *subdir) +index_del (xlator_t *this, uuid_t gfid, const char *subdir, int type) { int32_t op_errno __attribute__((unused)) = 0; index_priv_t *priv = NULL; @@ -471,72 +569,149 @@ index_del (xlator_t *this, uuid_t gfid, const char *subdir) ret = -errno; goto out; } + index_dec_link_count (priv, type); ret = 0; out: return ret; } +static gf_boolean_t +_is_xattr_in_watchlist (dict_t *d, char *k, data_t *v, void *tmp) +{ + const char *data = tmp; + + if (!strncmp (k, tmp, strlen (k))) + return _gf_true; + + return _gf_false; +} + +static gf_boolean_t +is_xattr_in_watchlist (dict_t *this, char *key, data_t *value, void *matchdata) +{ + int ret = -1; + + //matchdata is a list of xattrs + //key is strncmp'ed with each xattr in matchdata. + //ret will be 0 if key pattern is not present in the matchdata + //else ret will be count number of xattrs the key pattern-matches with. + ret = dict_foreach_match (matchdata, _is_xattr_in_watchlist, key, + dict_null_foreach_fn, NULL); + + if (ret > 0) + return _gf_true; + return _gf_false; +} + +static int +index_find_xattr_type (dict_t *d, char *k, data_t *v) +{ + int idx = -1; + index_priv_t *priv = THIS->private; + + if (is_xattr_in_watchlist (d, k, v, + priv->dirty_watchlist)) + idx = DIRTY; + else if (is_xattr_in_watchlist (d, k, v, + priv->pending_watchlist)) + idx = PENDING; + + return idx; +} + +int +index_fill_zero_array (dict_t *d, char *k, data_t *v, void *adata) +{ + int idx = -1; + int *zfilled = adata; + //zfilled array contains `state` for all types xattrs. + //state : whether the gfid file of this file exists in + //corresponding xattr directory or not. + + idx = index_find_xattr_type (d, k, v); + if (idx == -1) + return 0; + zfilled[idx] = 0; + return 0; +} + static int _check_key_is_zero_filled (dict_t *d, char *k, data_t *v, void *tmp) { + int *zfilled = tmp; + int idx = -1; + + idx = index_find_xattr_type (d, k, v); + if (idx == -1) + return 0; + + /* Along with checking that the value of a key is zero filled + * the key's corresponding index should be assigned + * appropriate value. + * zfilled[idx] will be 0(false) if value not zero. + * will be 1(true) if value is zero. + */ if (mem_0filled ((const char*)v->data, v->len)) { - /* -1 means, no more iterations, treat as 'break' */ - return -1; + zfilled[idx] = 0; + return 0; } + + /* If zfilled[idx] was previously 0, it means at least + * one xattr of its "kind" is non-zero. Keep its value + * the same. + */ + if (zfilled[idx]) + zfilled[idx] = 1; return 0; } void -_index_action (xlator_t *this, inode_t *inode, gf_boolean_t zero_xattr) +_index_action (xlator_t *this, inode_t *inode, int *zfilled) { int ret = 0; + int i = 0; index_inode_ctx_t *ctx = NULL; + char *subdir = NULL; ret = index_inode_ctx_get (inode, this, &ctx); if (ret) { - gf_log (this->name, GF_LOG_ERROR, "Not able to %s %s -> index", - zero_xattr?"del":"add", uuid_utoa (inode->gfid)); + gf_log (this->name, GF_LOG_ERROR, "Not able to get" + " inode context for %s.", uuid_utoa (inode->gfid)); goto out; } - if (zero_xattr) { - if (ctx->state == NOTIN) - goto out; - ret = index_del (this, inode->gfid, XATTROP_SUBDIR); - if (!ret) - ctx->state = NOTIN; - } else { - if (ctx->state == IN) - goto out; - ret = index_add (this, inode->gfid, XATTROP_SUBDIR); - if (!ret) - ctx->state = IN; + for (i = 0; i < XATTROP_TYPE_END; i++) { + subdir = index_get_subdir_from_type (i); + if (zfilled[i] == 1) { + if (ctx->state[i] == NOTIN) + continue; + ret = index_del (this, inode->gfid, subdir, i); + if (!ret) + ctx->state[i] = NOTIN; + } else if (zfilled[i] == 0){ + if (ctx->state[i] == IN) + continue; + ret = index_add (this, inode->gfid, subdir, i); + if (!ret) + ctx->state[i] = IN; + } } out: return; } -static gf_boolean_t -is_xattr_in_watchlist (dict_t *this, char *key, data_t *value, void *matchdata) -{ - if (dict_get (matchdata, key)) - return _gf_true; - - return _gf_false; -} - void xattrop_index_action (xlator_t *this, inode_t *inode, dict_t *xattr, dict_match_t match, void *match_data) { gf_boolean_t zero_xattr = _gf_true; - int ret = 0; + int ret = 0, i = 0; + int zfilled[XATTROP_TYPE_END] = {0,}; + memset (zfilled, -1, sizeof (zfilled)); ret = dict_foreach_match (xattr, match, match_data, - _check_key_is_zero_filled, NULL); - if (ret == -1) - zero_xattr = _gf_false; - _index_action (this, inode, zero_xattr); + _check_key_is_zero_filled, zfilled); + _index_action (this, inode, zfilled); return; } @@ -551,11 +726,11 @@ index_xattrop_track (xlator_t *this, gf_xattrop_flags_t flags, dict_t *dict) if (flags != GF_XATTROP_ADD_ARRAY64) return _gf_false; - if (!priv->xattrop64_watchlist) + if (!priv->pending_watchlist) return _gf_false; if (dict_foreach_match (dict, is_xattr_in_watchlist, - priv->xattrop64_watchlist, dict_null_foreach_fn, + priv->pending_watchlist, dict_null_foreach_fn, NULL) > 0) return _gf_true; @@ -569,10 +744,12 @@ __index_fd_ctx_get (fd_t *fd, xlator_t *this, index_fd_ctx_t **ctx) index_fd_ctx_t *fctx = NULL; uint64_t tmpctx = 0; char index_dir[PATH_MAX] = {0}; + char *subdir = NULL; index_priv_t *priv = NULL; priv = this->private; - if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid)) { + if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid) && + (gf_uuid_compare (fd->inode->gfid, priv->dirty_vgfid))) { ret = -EINVAL; goto out; } @@ -589,7 +766,8 @@ __index_fd_ctx_get (fd_t *fd, xlator_t *this, index_fd_ctx_t **ctx) goto out; } - make_index_dir_path (priv->index_basepath, XATTROP_SUBDIR, + subdir = index_get_subdir_from_vgfid (priv, fd->inode->gfid); + make_index_dir_path (priv->index_basepath, subdir, index_dir, sizeof (index_dir)); fctx->dir = sys_opendir (index_dir); if (!fctx->dir) { @@ -701,8 +879,12 @@ index_xattrop_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xattr, dict_t *xdata) { - return xattrop_cbk (frame, cookie, this, op_ret, op_errno, xattr, xdata, - dict_match_everything, NULL); + index_priv_t *priv = this->private; + + xattrop_cbk (frame, cookie, this, op_ret, op_errno, + xattr, xdata, is_xattr_in_watchlist, + priv->complete_watchlist); + return 0; } int32_t @@ -713,27 +895,60 @@ index_xattrop64_cbk (call_frame_t *frame, void *cookie, xlator_t *this, index_priv_t *priv = this->private; return xattrop_cbk (frame, cookie, this, op_ret, op_errno, xattr, xdata, - is_xattr_in_watchlist, priv->xattrop64_watchlist); + is_xattr_in_watchlist, priv->pending_watchlist); } -int -index_xattrop_wrapper (call_frame_t *frame, xlator_t *this, loc_t *loc, - gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata) +void +index_xattrop_do (call_frame_t *frame, xlator_t *this, loc_t *loc, + fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr, + dict_t *xdata) { fop_xattrop_cbk_t cbk = NULL; + int zfilled[XATTROP_TYPE_END] = {0,}; + int ret = -1, i = 0; + index_priv_t *priv = this->private; + //In wind phase bring the gfid into index. This way if the brick crashes //just after posix performs xattrop before _cbk reaches index xlator //we will still have the gfid in index. - _index_action (this, frame->local, _gf_false); + memset (zfilled, -1, sizeof (zfilled)); + + /* Foreach xattr, set corresponding index of zfilled to 1 + * zfilled[index] = 1 implies the xattr's value is zero filled + * and should be added in its corresponding subdir. + * + * zfilled should be set to 1 only for those index that + * exist in xattr variable. This is to distinguish + * between different types of volumes. + * For e.g., if the check is not made, + * zfilled[DIRTY] is set to 1 for EC volumes, + * index file will be tried to create in indices/dirty dir + * which doesn't exist for an EC volume. + */ + ret = dict_foreach (xattr, index_fill_zero_array, zfilled); + + _index_action (this, frame->local, zfilled); if (optype == GF_XATTROP_ADD_ARRAY) cbk = index_xattrop_cbk; else cbk = index_xattrop64_cbk; - STACK_WIND (frame, cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->xattrop, loc, optype, xattr, - xdata); + if (loc) + STACK_WIND (frame, cbk, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->xattrop, + loc, optype, xattr, xdata); + else + STACK_WIND (frame, cbk, FIRST_CHILD (this), + FIRST_CHILD (this)->fops->fxattrop, fd, + optype, xattr, xdata); +} + +int +index_xattrop_wrapper (call_frame_t *frame, xlator_t *this, loc_t *loc, + gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata) +{ + index_xattrop_do (frame, this, loc, NULL, optype, xattr, xdata); return 0; } @@ -741,20 +956,7 @@ int index_fxattrop_wrapper (call_frame_t *frame, xlator_t *this, fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata) { - fop_fxattrop_cbk_t cbk = NULL; - //In wind phase bring the gfid into index. This way if the brick crashes - //just after posix performs xattrop before _cbk reaches index xlator - //we will still have the gfid in index. - _index_action (this, frame->local, _gf_false); - - if (optype == GF_XATTROP_ADD_ARRAY) - cbk = index_xattrop_cbk; - else - cbk = index_xattrop64_cbk; - - STACK_WIND (frame, cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fxattrop, fd, optype, xattr, - xdata); + index_xattrop_do (frame, this, NULL, fd, optype, xattr, xdata); return 0; } @@ -869,7 +1071,16 @@ index_getxattr_wrapper (call_frame_t *frame, xlator_t *this, "gfid set failed"); goto done; } - } else if (strcmp (name, GF_XATTROP_INDEX_COUNT) == 0) { + } else if (strcmp (name, GF_XATTROP_DIRTY_GFID) == 0) { + ret = dict_set_static_bin (xattr, (char*)name, priv->dirty_vgfid, + sizeof (priv->dirty_vgfid)); + if (ret) { + ret = -ENOMEM; + gf_log (this->name, GF_LOG_ERROR, "dirty index " + "gfid set failed"); + goto done; + } + } else if (strcmp (name, GF_XATTROP_INDEX_COUNT) == 0) { count = index_entry_count (this, XATTROP_SUBDIR); ret = dict_set_uint64 (xattr, (char *)name, count); @@ -879,6 +1090,16 @@ index_getxattr_wrapper (call_frame_t *frame, xlator_t *this, "count set failed"); goto done; } + } else if (strcmp (name, GF_XATTROP_DIRTY_COUNT) == 0) { + count = index_entry_count (this, DIRTY_SUBDIR); + + ret = dict_set_uint64 (xattr, (char *)name, count); + if (ret) { + ret = -ENOMEM; + gf_log (this->name, GF_LOG_ERROR, "dirty index " + "count set failed"); + goto done; + } } done: if (ret) @@ -906,19 +1127,21 @@ index_lookup_wrapper (call_frame_t *frame, xlator_t *this, struct iatt postparent = {0,}; dict_t *xattr = NULL; gf_boolean_t is_dir = _gf_false; + char *subdir = NULL; priv = this->private; VALIDATE_OR_GOTO (loc, done); - if (!gf_uuid_compare (loc->gfid, priv->xattrop_vgfid)) { - make_index_dir_path (priv->index_basepath, XATTROP_SUBDIR, + subdir = index_get_subdir_from_vgfid (priv, loc->gfid); + if (subdir) { + make_index_dir_path (priv->index_basepath, subdir, path, sizeof (path)); is_dir = _gf_true; - } else if (!gf_uuid_compare (loc->pargfid, priv->xattrop_vgfid)) { - make_file_path (priv->index_basepath, XATTROP_SUBDIR, + } else { + subdir = index_get_subdir_from_vgfid (priv, loc->pargfid); + make_file_path (priv->index_basepath, subdir, loc->name, path, sizeof (path)); } - ret = sys_lstat (path, &lstatbuf); if (ret) { gf_log (this->name, GF_LOG_DEBUG, "Stat failed on index dir " @@ -939,7 +1162,7 @@ index_lookup_wrapper (call_frame_t *frame, xlator_t *this, iatt_from_stat (&stbuf, &lstatbuf); if (is_dir) - gf_uuid_copy (stbuf.ia_gfid, priv->xattrop_vgfid); + gf_uuid_copy (stbuf.ia_gfid, loc->gfid); else gf_uuid_generate (stbuf.ia_gfid); stbuf.ia_ino = -1; @@ -1002,14 +1225,18 @@ index_unlink_wrapper (call_frame_t *frame, xlator_t *this, loc_t *loc, int flag, int32_t op_ret = 0; int32_t op_errno = 0; int ret = 0; + int type = -1; struct iatt preparent = {0}; struct iatt postparent = {0}; char index_dir[PATH_MAX] = {0}; struct stat lstatbuf = {0}; uuid_t gfid = {0}; + char *subdir = NULL; priv = this->private; - make_index_dir_path (priv->index_basepath, XATTROP_SUBDIR, + type = index_get_type_from_vgfid (priv, loc->pargfid); + subdir = index_get_subdir_from_type (type); + make_index_dir_path (priv->index_basepath, subdir, index_dir, sizeof (index_dir)); ret = sys_lstat (index_dir, &lstatbuf); if (ret < 0) { @@ -1019,10 +1246,10 @@ index_unlink_wrapper (call_frame_t *frame, xlator_t *this, loc_t *loc, int flag, } iatt_from_stat (&preparent, &lstatbuf); - gf_uuid_copy (preparent.ia_gfid, priv->xattrop_vgfid); + gf_uuid_copy (preparent.ia_gfid, loc->pargfid); preparent.ia_ino = -1; gf_uuid_parse (loc->name, gfid); - ret = index_del (this, gfid, XATTROP_SUBDIR); + ret = index_del (this, gfid, subdir, type); if (ret < 0) { op_ret = -1; op_errno = -ret; @@ -1036,7 +1263,7 @@ index_unlink_wrapper (call_frame_t *frame, xlator_t *this, loc_t *loc, int flag, goto done; } iatt_from_stat (&postparent, &lstatbuf); - gf_uuid_copy (postparent.ia_gfid, priv->xattrop_vgfid); + gf_uuid_copy (postparent.ia_gfid, loc->pargfid); postparent.ia_ino = -1; done: INDEX_STACK_UNWIND (unlink, frame, op_ret, op_errno, &preparent, @@ -1054,7 +1281,9 @@ index_getxattr (call_frame_t *frame, xlator_t *this, priv = this->private; if (!name || (strcmp (GF_XATTROP_INDEX_GFID, name) && - strcmp (GF_XATTROP_INDEX_COUNT, name))) + strcmp (GF_XATTROP_INDEX_COUNT, name) && + strcmp (GF_XATTROP_DIRTY_GFID, name) && + strcmp (GF_XATTROP_DIRTY_COUNT, name))) goto out; stub = fop_getxattr_stub (frame, index_getxattr_wrapper, loc, name, @@ -1071,17 +1300,115 @@ out: return 0; } +int64_t +index_fetch_link_count (xlator_t *this, index_xattrop_type_t type) +{ + char index_dir[PATH_MAX] = {0}; + char index_path[PATH_MAX] = {0}; + index_priv_t *priv = this->private; + char *subdir = NULL; + DIR *dirp = NULL; + struct dirent *entry = NULL; + struct stat lstatbuf = {0}; + int ret = -1; + int64_t count = -1; + struct dirent buf; + + subdir = index_get_subdir_from_type (type); + make_index_dir_path (priv->index_basepath, subdir, + index_dir, sizeof (index_dir)); + + dirp = sys_opendir (index_dir); + if (!dirp) + goto out; + + while (readdir_r (dirp, &buf, &entry) == 0) { + if (!entry) { + if (count == -1) + count = 0; + goto out; + } else if (!strcmp (entry->d_name, ".") || + !strcmp (entry->d_name, "..")) { + continue; + } else if (!strncmp (entry->d_name, subdir, strlen (subdir))) { + make_file_path (priv->index_basepath, subdir, + entry->d_name, index_path, + sizeof (index_path)); + ret = sys_lstat (index_path, &lstatbuf); + if (ret < 0) { + count = -2; + continue; + } else { + count = lstatbuf.st_nlink - 1; + if (count == 0) + continue; + else + break; + } + } else { + count = 1; + goto out; + } + } +out: + if (dirp) + sys_closedir (dirp); + return count; +} + +int32_t +index_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 *xdata, struct iatt *postparent) +{ + int ret = -1; + char *dir = NULL; + index_priv_t *priv = this->private; + int64_t count = -1; + + xdata = (xdata) ? dict_ref (xdata) : dict_new (); + if (!xdata) + goto out; + + index_get_link_count (priv, &count, PENDING); + if (count < 0) { + count = index_fetch_link_count (this, PENDING); + index_set_link_count (priv, count, PENDING); + } + + if (count == 0) { + ret = dict_set_int8 (xdata, "link-count", 0); + if (ret < 0) + goto out; + } else { + ret = dict_set_int8 (xdata, "link-count", 1); + if (ret < 0) + goto out; + } + +out: + STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, inode, buf, + xdata, postparent); + if (xdata) + dict_unref (xdata); + return 0; +} + int32_t index_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req) { call_stub_t *stub = NULL; index_priv_t *priv = NULL; + char *flag = NULL; + int ret = -1; priv = this->private; if (gf_uuid_compare (loc->gfid, priv->xattrop_vgfid) && - gf_uuid_compare (loc->pargfid, priv->xattrop_vgfid)) + gf_uuid_compare (loc->pargfid, priv->xattrop_vgfid) && + gf_uuid_compare (loc->gfid, priv->dirty_vgfid) && + gf_uuid_compare (loc->pargfid, priv->dirty_vgfid)) goto normal; stub = fop_lookup_stub (frame, index_lookup_wrapper, loc, xattr_req); @@ -1093,8 +1420,14 @@ index_lookup (call_frame_t *frame, xlator_t *this, worker_enqueue (this, stub); return 0; normal: - STACK_WIND (frame, default_lookup_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + ret = dict_get_str (xattr_req, "link-count", &flag); + if (!(ret || strcmp (flag, GF_XATTROP_INDEX_COUNT))) { + STACK_WIND (frame, index_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + } else { + STACK_WIND (frame, default_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xattr_req); + } return 0; } @@ -1106,7 +1439,8 @@ index_opendir (call_frame_t *frame, xlator_t *this, index_priv_t *priv = NULL; priv = this->private; - if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid)) + if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid) && + gf_uuid_compare (fd->inode->gfid, priv->dirty_vgfid)) goto normal; frame->local = NULL; @@ -1127,7 +1461,8 @@ index_readdir (call_frame_t *frame, xlator_t *this, index_priv_t *priv = NULL; priv = this->private; - if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid)) + if (gf_uuid_compare (fd->inode->gfid, priv->xattrop_vgfid) && + gf_uuid_compare (fd->inode->gfid, priv->dirty_vgfid)) goto out; stub = fop_readdir_stub (frame, index_readdir_wrapper, fd, size, off, xdata); @@ -1151,7 +1486,8 @@ index_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, index_priv_t *priv = NULL; priv = this->private; - if (gf_uuid_compare (loc->pargfid, priv->xattrop_vgfid)) + if (gf_uuid_compare (loc->pargfid, priv->xattrop_vgfid) && + gf_uuid_compare (loc->pargfid, priv->dirty_vgfid)) goto out; stub = fop_unlink_stub (frame, index_unlink_wrapper, loc, xflag, xdata); @@ -1169,8 +1505,8 @@ out: } int -index_make_xattrop64_watchlist (xlator_t *this, index_priv_t *priv, - char *watchlist) +index_make_xattrop_watchlist (xlator_t *this, index_priv_t *priv, + char *watchlist, index_xattrop_type_t type) { char *delim = NULL; char *dup_watchlist = NULL; @@ -1216,7 +1552,16 @@ index_make_xattrop64_watchlist (xlator_t *this, index_priv_t *priv, key = strtok_r (NULL, delim, &saveptr); } - priv->xattrop64_watchlist = xattrs; + switch (type) { + case DIRTY: + priv->dirty_watchlist = xattrs; + break; + case PENDING: + priv->pending_watchlist = xattrs; + break; + default: + break; + } xattrs = NULL; ret = 0; @@ -1246,6 +1591,7 @@ int init (xlator_t *this) { int ret = -1; + int64_t count = -1; index_priv_t *priv = NULL; pthread_t thread; pthread_attr_t w_attr; @@ -1253,6 +1599,8 @@ init (xlator_t *this) gf_boolean_t cond_inited = _gf_false; gf_boolean_t attr_inited = _gf_false; char *watchlist = NULL; + char *dirtylist = NULL; + char *pendinglist = NULL; if (!this->children || this->children->next) { gf_log (this->name, GF_LOG_ERROR, @@ -1300,12 +1648,32 @@ init (xlator_t *this) GF_OPTION_INIT ("index-base", priv->index_basepath, path, out); GF_OPTION_INIT ("xattrop64-watchlist", watchlist, str, out); - ret = index_make_xattrop64_watchlist (this, priv, watchlist); + ret = index_make_xattrop_watchlist (this, priv, watchlist, + PENDING); + if (ret) + goto out; + + GF_OPTION_INIT ("xattrop-dirty-watchlist", dirtylist, str, out); + ret = index_make_xattrop_watchlist (this, priv, dirtylist, + DIRTY); + if (ret) + goto out; + + GF_OPTION_INIT ("xattrop-pending-watchlist", pendinglist, str, out); + ret = index_make_xattrop_watchlist (this, priv, pendinglist, + PENDING); if (ret) goto out; + if (priv->dirty_watchlist) + priv->complete_watchlist = dict_copy_with_ref (priv->dirty_watchlist, + priv->complete_watchlist); + if (priv->pending_watchlist) + priv->complete_watchlist = dict_copy_with_ref (priv->pending_watchlist, + priv->complete_watchlist); gf_uuid_generate (priv->index); gf_uuid_generate (priv->xattrop_vgfid); + gf_uuid_generate (priv->dirty_vgfid); INIT_LIST_HEAD (&priv->callstubs); this->private = priv; @@ -1314,6 +1682,16 @@ init (xlator_t *this) if (ret < 0) goto out; + if (priv->dirty_watchlist) { + ret = index_dir_create (this, DIRTY_SUBDIR); + if (ret < 0) + goto out; + } + + /*init indices files counts*/ + count = index_fetch_link_count (this, PENDING); + index_set_link_count (priv, count, PENDING); + ret = gf_thread_create (&thread, &w_attr, index_worker, this); if (ret) { gf_log (this->name, GF_LOG_WARNING, "Failed to create " @@ -1328,12 +1706,17 @@ out: pthread_cond_destroy (&priv->cond); if (mutex_inited) pthread_mutex_destroy (&priv->mutex); - if (priv && priv->xattrop64_watchlist) - dict_unref (priv->xattrop64_watchlist); + if (priv && priv->dirty_watchlist) + dict_unref (priv->dirty_watchlist); + if (priv && priv->pending_watchlist) + dict_unref (priv->pending_watchlist); + if (priv && priv->complete_watchlist) + dict_unref (priv->complete_watchlist); if (priv) GF_FREE (priv); this->private = NULL; } + if (attr_inited) pthread_attr_destroy (&w_attr); return ret; @@ -1351,8 +1734,12 @@ fini (xlator_t *this) LOCK_DESTROY (&priv->lock); pthread_cond_destroy (&priv->cond); pthread_mutex_destroy (&priv->mutex); - if (priv->xattrop64_watchlist) - dict_unref (priv->xattrop64_watchlist); + if (priv->dirty_watchlist) + dict_unref (priv->dirty_watchlist); + if (priv->pending_watchlist) + dict_unref (priv->pending_watchlist); + if (priv->complete_watchlist) + dict_unref (priv->complete_watchlist); GF_FREE (priv); out: return; @@ -1445,5 +1832,13 @@ struct volume_options options[] = { .type = GF_OPTION_TYPE_STR, .description = "Comma separated list of xattrs that are watched", }, + { .key = {"xattrop-dirty-watchlist" }, + .type = GF_OPTION_TYPE_STR, + .description = "Comma separated list of xattrs that are watched", + }, + { .key = {"xattrop-pending-watchlist" }, + .type = GF_OPTION_TYPE_STR, + .description = "Comma separated list of xattrs that are watched", + }, { .key = {NULL} }, }; diff --git a/xlators/features/index/src/index.h b/xlators/features/index/src/index.h index a8dfe067ae1..bec0152a145 100644 --- a/xlators/features/index/src/index.h +++ b/xlators/features/index/src/index.h @@ -26,10 +26,16 @@ typedef enum { NOTIN } index_state_t; +typedef enum { + PENDING, + DIRTY, + XATTROP_TYPE_END +} index_xattrop_type_t; + typedef struct index_inode_ctx { gf_boolean_t processing; struct list_head callstubs; - index_state_t state; + int state[XATTROP_TYPE_END]; } index_inode_ctx_t; typedef struct index_fd_ctx { @@ -39,13 +45,18 @@ typedef struct index_fd_ctx { typedef struct index_priv { char *index_basepath; + char *dirty_basepath; uuid_t index; gf_lock_t lock; uuid_t xattrop_vgfid;//virtual gfid of the xattrop index dir + uuid_t dirty_vgfid; // virtual gfid of the on-going/dirty index dir struct list_head callstubs; pthread_mutex_t mutex; pthread_cond_t cond; - dict_t *xattrop64_watchlist; + dict_t *dirty_watchlist; + dict_t *pending_watchlist; + dict_t *complete_watchlist; + int64_t pending_count; } index_priv_t; #define INDEX_STACK_UNWIND(fop, frame, params ...) \ |