diff options
Diffstat (limited to 'xlators/features/locks/src')
| -rw-r--r-- | xlators/features/locks/src/locks.h | 4 | ||||
| -rw-r--r-- | xlators/features/locks/src/posix.c | 614 |
2 files changed, 339 insertions, 279 deletions
diff --git a/xlators/features/locks/src/locks.h b/xlators/features/locks/src/locks.h index f761b3d4a00..b72cbe0a67b 100644 --- a/xlators/features/locks/src/locks.h +++ b/xlators/features/locks/src/locks.h @@ -164,15 +164,15 @@ typedef struct { typedef struct { gf_boolean_t entrylk_count_req; gf_boolean_t inodelk_count_req; - gf_boolean_t inodelk_dom_count_req; gf_boolean_t posixlk_count_req; gf_boolean_t parent_entrylk_req; + data_t *inodelk_dom_count_req; + dict_t *xdata; /* used by {f,}truncate */ loc_t loc; fd_t *fd; off_t offset; - dict_t *xdata; enum {TRUNCATE, FTRUNCATE} op; } pl_local_t; diff --git a/xlators/features/locks/src/posix.c b/xlators/features/locks/src/posix.c index d17d0bbe108..7dca2d0cb5f 100644 --- a/xlators/features/locks/src/posix.c +++ b/xlators/features/locks/src/posix.c @@ -44,6 +44,281 @@ static int format_brickname(char *); int pl_lockinfo_get_brickname (xlator_t *, inode_t *, int32_t *); static int fetch_pathinfo(xlator_t *, inode_t *, int32_t *, char **); +#define PL_STACK_UNWIND(fop, xdata, frame, op_ret, params ...) \ + do { \ + pl_local_t *__local = NULL; \ + inode_t *__parent = NULL; \ + inode_t *__inode = NULL; \ + char *__name = NULL; \ + dict_t *__unref = NULL; \ + \ + __local = frame->local; \ + if (op_ret >= 0 && pl_needs_xdata_response (frame->local)) {\ + if (xdata) \ + dict_ref (xdata); \ + else \ + xdata = dict_new(); \ + if (xdata) { \ + __unref = xdata; \ + pl_get_xdata_rsp_args (__local, \ + #fop, &__parent, &__inode, \ + &__name); \ + pl_set_xdata_response (frame->this, \ + __local, __parent, __inode, __name, \ + xdata); \ + } \ + } \ + frame->local = NULL; \ + STACK_UNWIND_STRICT (fop, frame, op_ret, params); \ + if (__local) { \ + if (__local->inodelk_dom_count_req) \ + data_unref (__local->inodelk_dom_count_req);\ + loc_wipe (&__local->loc); \ + if (__local->fd) \ + fd_unref (__local->fd); \ + mem_put (__local); \ + } \ + if (__unref) \ + dict_unref (__unref); \ + } while (0) + +#define PL_LOCAL_GET_REQUESTS(frame, this, xdata, __fd, __loc) \ + do { \ + if (pl_has_xdata_requests (xdata)) { \ + frame->local = mem_get0 (this->local_pool); \ + pl_local_t *__local = frame->local; \ + if (__local) { \ + if (__fd) \ + __local->fd = fd_ref (__fd); \ + else \ + loc_copy (&__local->loc, __loc);\ + pl_get_xdata_requests (__local, xdata); \ + } \ + } \ + } while (0) + +gf_boolean_t +pl_has_xdata_requests (dict_t *xdata) +{ + char *reqs[] = {GLUSTERFS_ENTRYLK_COUNT, GLUSTERFS_INODELK_COUNT, + GLUSTERFS_INODELK_DOM_COUNT, GLUSTERFS_POSIXLK_COUNT, + GLUSTERFS_PARENT_ENTRYLK, NULL}; + int i = 0; + + if (!xdata) + return _gf_false; + + for (i = 0; reqs[i]; i++) + if (dict_get (xdata, reqs[i])) + return _gf_true; + + return _gf_false; +} + +void +pl_get_xdata_requests (pl_local_t *local, dict_t *xdata) +{ + if (!local || !xdata) + return; + + if (dict_get (xdata, GLUSTERFS_ENTRYLK_COUNT)) { + local->entrylk_count_req = 1; + dict_del (xdata, GLUSTERFS_ENTRYLK_COUNT); + } + if (dict_get (xdata, GLUSTERFS_INODELK_COUNT)) { + local->inodelk_count_req = 1; + dict_del (xdata, GLUSTERFS_INODELK_COUNT); + } + + local->inodelk_dom_count_req = dict_get (xdata, GLUSTERFS_INODELK_DOM_COUNT); + if (local->inodelk_dom_count_req) { + data_ref (local->inodelk_dom_count_req); + dict_del (xdata, GLUSTERFS_INODELK_DOM_COUNT); + } + + if (dict_get (xdata, GLUSTERFS_POSIXLK_COUNT)) { + local->posixlk_count_req = 1; + dict_del (xdata, GLUSTERFS_POSIXLK_COUNT); + } + + if (dict_get (xdata, GLUSTERFS_PARENT_ENTRYLK)) { + local->parent_entrylk_req = 1; + dict_del (xdata, GLUSTERFS_PARENT_ENTRYLK); + } +} + +gf_boolean_t +pl_needs_xdata_response (pl_local_t *local) +{ + if (!local) + return _gf_false; + + if (local->parent_entrylk_req) + return _gf_true; + + if (local->entrylk_count_req) + return _gf_true; + + if (local->inodelk_dom_count_req) + return _gf_true; + + if (local->inodelk_count_req) + return _gf_true; + + if (local->posixlk_count_req) + return _gf_true; + return _gf_false; +} + +void +pl_get_xdata_rsp_args (pl_local_t *local, char *fop, inode_t **parent, + inode_t **inode, char **name) +{ + if (strcmp (fop, "lookup") == 0) { + *parent = local->loc.parent; + *inode = local->loc.inode; + *name = (char *)local->loc.name; + } else { + if (local->fd) { + *inode = local->fd->inode; + } else { + *inode = local->loc.parent; + } + } +} + +int32_t +__get_posixlk_count (xlator_t *this, pl_inode_t *pl_inode) +{ + posix_lock_t *lock = NULL; + int32_t count = 0; + + list_for_each_entry (lock, &pl_inode->ext_list, list) { + + count++; + } + + return count; +} + +int32_t +get_posixlk_count (xlator_t *this, inode_t *inode) +{ + pl_inode_t *pl_inode = NULL; + uint64_t tmp_pl_inode = 0; + int ret = 0; + int32_t count = 0; + + ret = inode_ctx_get (inode, this, &tmp_pl_inode); + if (ret != 0) { + goto out; + } + + pl_inode = (pl_inode_t *)(long) tmp_pl_inode; + + pthread_mutex_lock (&pl_inode->mutex); + { + count = __get_posixlk_count (this, pl_inode); + } + pthread_mutex_unlock (&pl_inode->mutex); + +out: + return count; +} + +void +pl_parent_entrylk_xattr_fill (xlator_t *this, inode_t *parent, + char *basename, dict_t *dict) +{ + uint32_t entrylk = 0; + int ret = -1; + + if (!parent || !basename || !strlen (basename)) + goto out; + entrylk = check_entrylk_on_basename (this, parent, basename); +out: + ret = dict_set_uint32 (dict, GLUSTERFS_PARENT_ENTRYLK, entrylk); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, + " dict_set failed on key %s", GLUSTERFS_PARENT_ENTRYLK); + } +} + +void +pl_entrylk_xattr_fill (xlator_t *this, inode_t *inode, + dict_t *dict) +{ + int32_t count = 0; + int ret = -1; + + count = get_entrylk_count (this, inode); + ret = dict_set_int32 (dict, GLUSTERFS_ENTRYLK_COUNT, count); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, + " dict_set failed on key %s", GLUSTERFS_ENTRYLK_COUNT); + } + +} + +void +pl_inodelk_xattr_fill (xlator_t *this, inode_t *inode, dict_t *dict, + char *domname) +{ + int32_t count = 0; + int ret = -1; + + + count = get_inodelk_count (this, inode, domname); + + ret = dict_set_int32 (dict, GLUSTERFS_INODELK_COUNT, count); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, "Failed to set count for " + "key %s", GLUSTERFS_INODELK_COUNT); + } + + return; +} + +void +pl_posixlk_xattr_fill (xlator_t *this, inode_t *inode, + dict_t *dict) +{ + int32_t count = 0; + int ret = -1; + + count = get_posixlk_count (this, inode); + ret = dict_set_int32 (dict, GLUSTERFS_POSIXLK_COUNT, count); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, + " dict_set failed on key %s", GLUSTERFS_POSIXLK_COUNT); + } + +} + +void +pl_set_xdata_response (xlator_t *this, pl_local_t *local, inode_t *parent, + inode_t *inode, char *name, dict_t *xdata) +{ + if (!xdata || !local) + return; + + if (local->parent_entrylk_req && parent && name && strlen (name)) + pl_parent_entrylk_xattr_fill (this, parent, name, xdata); + + if (local->entrylk_count_req && inode) + pl_entrylk_xattr_fill (this, inode, xdata); + + if (local->inodelk_dom_count_req && inode) + pl_inodelk_xattr_fill (this, inode, xdata, + data_to_str (local->inodelk_dom_count_req)); + + if (local->inodelk_count_req && inode) + pl_inodelk_xattr_fill (this, inode, xdata, NULL); + + if (local->posixlk_count_req && inode) + pl_posixlk_xattr_fill (this, inode, xdata); +} + static pl_fdctx_t * pl_new_fdctx () { @@ -905,12 +1180,8 @@ unwind: } int32_t -pl_opendir_cbk (call_frame_t *frame, - void *cookie, - xlator_t *this, - int32_t op_ret, - int32_t op_errno, - fd_t *fd, dict_t *xdata) +pl_opendir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, fd_t *fd, dict_t *xdata) { pl_fdctx_t *fdctx = NULL; @@ -925,25 +1196,19 @@ pl_opendir_cbk (call_frame_t *frame, } unwind: - STACK_UNWIND_STRICT (opendir, - frame, - op_ret, - op_errno, - fd, xdata); + PL_STACK_UNWIND (opendir, xdata, frame, op_ret, op_errno, fd, xdata); + return 0; } int32_t pl_opendir (call_frame_t *frame, xlator_t *this, - loc_t *loc, fd_t *fd, dict_t *xdata) + loc_t *loc, fd_t *fd, dict_t *xdata) { - STACK_WIND (frame, - pl_opendir_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->opendir, - loc, fd, xdata); + PL_LOCAL_GET_REQUESTS (frame, this, xdata, fd, NULL); + STACK_WIND (frame, pl_opendir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, loc, fd, xdata); return 0; - } int @@ -1023,7 +1288,6 @@ unwind: return 0; } - int pl_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata) @@ -1055,8 +1319,8 @@ pl_create_cbk (call_frame_t *frame, void *cookie, } unwind: - STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, fd, inode, buf, - preparent, postparent, xdata); + PL_STACK_UNWIND (create, xdata, frame, op_ret, op_errno, fd, inode, buf, + preparent, postparent, xdata); return 0; } @@ -1067,12 +1331,32 @@ pl_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) { + PL_LOCAL_GET_REQUESTS (frame, this, xdata, NULL, loc); STACK_WIND (frame, pl_create_cbk, FIRST_CHILD (this), FIRST_CHILD (this)->fops->create, loc, flags, mode, umask, fd, xdata); return 0; } +int32_t +pl_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + PL_STACK_UNWIND (unlink, xdata, frame, op_ret, op_errno, preparent, + postparent, xdata); + return 0; +} + +int32_t +pl_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, + dict_t *xdata) +{ + PL_LOCAL_GET_REQUESTS (frame, this, xdata, NULL, loc); + STACK_WIND (frame, pl_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); + return 0; +} int pl_readv_cbk (call_frame_t *frame, void *cookie, xlator_t *this, @@ -1080,8 +1364,8 @@ pl_readv_cbk (call_frame_t *frame, void *cookie, xlator_t *this, struct iovec *vector, int32_t count, struct iatt *stbuf, struct iobref *iobref, dict_t *xdata) { - STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, - vector, count, stbuf, iobref, xdata); + PL_STACK_UNWIND (readv, xdata, frame, op_ret, op_errno, + vector, count, stbuf, iobref, xdata); return 0; } @@ -1091,13 +1375,12 @@ pl_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata) { - STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf, - xdata); + PL_STACK_UNWIND (writev, xdata, frame, op_ret, op_errno, prebuf, + postbuf, xdata); return 0; } - void do_blocked_rw (pl_inode_t *pl_inode) { @@ -1177,6 +1460,8 @@ pl_readv (call_frame_t *frame, xlator_t *this, priv = this->private; pl_inode = pl_inode_get (this, fd->inode); + PL_LOCAL_GET_REQUESTS (frame, this, xdata, fd, NULL); + if (priv->mandatory && pl_inode->mandatory) { region.fl_start = offset; region.fl_end = offset + size - 1; @@ -1271,6 +1556,8 @@ pl_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, priv = this->private; pl_inode = pl_inode_get (this, fd->inode); + PL_LOCAL_GET_REQUESTS (frame, this, xdata, fd, NULL); + if (priv->mandatory && pl_inode->mandatory) { region.fl_start = offset; region.fl_end = offset + iov_length (vector, count) - 1; @@ -1322,10 +1609,11 @@ pl_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, } - if (wind_needed) + if (wind_needed) { STACK_WIND (frame, pl_writev_cbk, FIRST_CHILD (this), FIRST_CHILD (this)->fops->writev, fd, vector, count, offset, flags, iobref, xdata); + } if (op_ret == -1) STACK_UNWIND_STRICT (writev, frame, -1, op_errno, NULL, NULL, @@ -1872,224 +2160,24 @@ out: } int32_t -__get_posixlk_count (xlator_t *this, pl_inode_t *pl_inode) -{ - posix_lock_t *lock = NULL; - int32_t count = 0; - - list_for_each_entry (lock, &pl_inode->ext_list, list) { - - count++; - } - - return count; -} - -int32_t -get_posixlk_count (xlator_t *this, inode_t *inode) -{ - pl_inode_t *pl_inode = NULL; - uint64_t tmp_pl_inode = 0; - int ret = 0; - int32_t count = 0; - - ret = inode_ctx_get (inode, this, &tmp_pl_inode); - if (ret != 0) { - goto out; - } - - pl_inode = (pl_inode_t *)(long) tmp_pl_inode; - - pthread_mutex_lock (&pl_inode->mutex); - { - count =__get_posixlk_count (this, pl_inode); - } - pthread_mutex_unlock (&pl_inode->mutex); - -out: - return count; -} - -void -pl_parent_entrylk_xattr_fill (xlator_t *this, inode_t *parent, - char *basename, dict_t *dict) -{ - uint32_t entrylk = 0; - int ret = -1; - - if (!parent || !basename || !strlen (basename)) - goto out; - entrylk = check_entrylk_on_basename (this, parent, basename); -out: - ret = dict_set_uint32 (dict, GLUSTERFS_PARENT_ENTRYLK, entrylk); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, - " dict_set failed on key %s", GLUSTERFS_PARENT_ENTRYLK); - } -} - -void -pl_entrylk_xattr_fill (xlator_t *this, inode_t *inode, - dict_t *dict) +pl_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) { - int32_t count = 0; - int ret = -1; - - count = get_entrylk_count (this, inode); - ret = dict_set_int32 (dict, GLUSTERFS_ENTRYLK_COUNT, count); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, - " dict_set failed on key %s", GLUSTERFS_ENTRYLK_COUNT); - } - -} - -void -pl_inodelk_xattr_fill (xlator_t *this, inode_t *inode, dict_t *dict, - gf_boolean_t per_dom) -{ - int32_t count = 0; - int ret = -1; - char *domname = NULL; - - - if (per_dom){ - ret = dict_get_str (dict, GLUSTERFS_INODELK_DOM_COUNT, - &domname); - if (ret) { - gf_log (this->name, GF_LOG_ERROR, "Failed to get " - "value for key %s",GLUSTERFS_INODELK_DOM_COUNT); - goto out; - } - } - - count = get_inodelk_count (this, inode, domname); - - ret = dict_set_int32 (dict, GLUSTERFS_INODELK_COUNT, count); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, "Failed to set count for " - "key %s", GLUSTERFS_INODELK_COUNT); - } - -out: - return; -} - -void -pl_posixlk_xattr_fill (xlator_t *this, inode_t *inode, - dict_t *dict) -{ - int32_t count = 0; - int ret = -1; - - count = get_posixlk_count (this, inode); - ret = dict_set_int32 (dict, GLUSTERFS_POSIXLK_COUNT, count); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, - " dict_set failed on key %s", GLUSTERFS_POSIXLK_COUNT); - } - -} - -int32_t -pl_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) -{ - pl_local_t *local = NULL; - - GF_VALIDATE_OR_GOTO (this->name, frame->local, out); - - if (op_ret) - goto out; - - local = frame->local; - - if (local->parent_entrylk_req) - pl_parent_entrylk_xattr_fill (this, local->loc.parent, - (char*)local->loc.name, xdata); - if (local->entrylk_count_req) - pl_entrylk_xattr_fill (this, inode, xdata); - if (local->inodelk_count_req) - pl_inodelk_xattr_fill (this, inode, xdata, _gf_false); - if (local->inodelk_dom_count_req) - pl_inodelk_xattr_fill (this, inode, xdata, _gf_true); - if (local->posixlk_count_req) - pl_posixlk_xattr_fill (this, inode, xdata); - - -out: - local = frame->local; - frame->local = NULL; - - if (local != NULL) { - loc_wipe (&local->loc); - mem_put (local); - } - - STACK_UNWIND_STRICT ( - lookup, - frame, - op_ret, - op_errno, - inode, - buf, - xdata, - postparent); + PL_STACK_UNWIND (lookup, xdata, frame, op_ret, op_errno, inode, buf, + xdata, postparent); return 0; } int32_t -pl_lookup (call_frame_t *frame, - xlator_t *this, - loc_t *loc, - dict_t *xdata) +pl_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) { - pl_local_t *local = NULL; - int ret = -1; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - local = mem_get0 (this->local_pool); - GF_VALIDATE_OR_GOTO (this->name, local, out); - - if (xdata) { - if (dict_get (xdata, GLUSTERFS_ENTRYLK_COUNT)) - local->entrylk_count_req = 1; - if (dict_get (xdata, GLUSTERFS_INODELK_COUNT)) - local->inodelk_count_req = 1; - if (dict_get (xdata, GLUSTERFS_INODELK_DOM_COUNT)) - local->inodelk_dom_count_req = 1; - if (dict_get (xdata, GLUSTERFS_POSIXLK_COUNT)) - local->posixlk_count_req = 1; - if (dict_get (xdata, GLUSTERFS_PARENT_ENTRYLK)) - local->parent_entrylk_req = 1; - } - - frame->local = local; - loc_copy (&local->loc, loc); - - STACK_WIND (frame, - pl_lookup_cbk, - FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lookup, - loc, xdata); - ret = 0; -out: - if (ret == -1) - STACK_UNWIND_STRICT (lookup, frame, -1, 0, NULL, - NULL, NULL, NULL); - + PL_LOCAL_GET_REQUESTS (frame, this, xdata, NULL, loc); + STACK_WIND (frame, pl_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xdata); return 0; } + int pl_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret, int op_errno, gf_dirent_t *entries, dict_t *xdata) @@ -2097,64 +2185,36 @@ pl_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, pl_local_t *local = NULL; gf_dirent_t *entry = NULL; - local = frame->local; - if (op_ret <= 0) goto unwind; + local = frame->local; + if (!local) + goto unwind; + list_for_each_entry (entry, &entries->list, list) { - if (local->entrylk_count_req) - pl_entrylk_xattr_fill (this, entry->inode, entry->dict); - if (local->inodelk_count_req) - pl_inodelk_xattr_fill (this, entry->inode, entry->dict, - _gf_false); - if (local->inodelk_dom_count_req) - pl_inodelk_xattr_fill (this, entry->inode, entry->dict, - _gf_true); - if (local->posixlk_count_req) - pl_posixlk_xattr_fill (this, entry->inode, entry->dict); + pl_set_xdata_response (this, local, local->fd->inode, + entry->inode, entry->d_name, + entry->dict); } unwind: - frame->local = NULL; - STACK_UNWIND_STRICT (readdirp, frame, op_ret, op_errno, entries, xdata); - - if (local) - mem_put (local); + PL_STACK_UNWIND (readdirp, xdata, frame, op_ret, op_errno, entries, + xdata); return 0; } int pl_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, - off_t offset, dict_t *dict) + off_t offset, dict_t *xdata) { - pl_local_t *local = NULL; - - local = mem_get0 (this->local_pool); - GF_VALIDATE_OR_GOTO (this->name, local, out); - - if (dict) { - if (dict_get (dict, GLUSTERFS_ENTRYLK_COUNT)) - local->entrylk_count_req = 1; - if (dict_get (dict, GLUSTERFS_INODELK_COUNT)) - local->inodelk_count_req = 1; - if (dict_get (dict, GLUSTERFS_INODELK_DOM_COUNT)) - local->inodelk_dom_count_req = 1; - if (dict_get (dict, GLUSTERFS_POSIXLK_COUNT)) - local->posixlk_count_req = 1; - } - - frame->local = local; - + PL_LOCAL_GET_REQUESTS (frame, this, xdata, fd, NULL); STACK_WIND (frame, pl_readdirp_cbk, FIRST_CHILD(this), FIRST_CHILD(this)->fops->readdirp, - fd, size, offset, dict); + fd, size, offset, xdata); return 0; -out: - STACK_UNWIND_STRICT (readdirp, frame, -1, ENOMEM, NULL, NULL); - return 0; } |