diff options
| author | Anand Avati <avati@redhat.com> | 2013-01-18 14:04:23 -0800 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-01-28 12:35:57 -0800 |
| commit | cc96adbe4604ea5fd462d8db77486c2f963baf43 (patch) | |
| tree | 40d5ea5d0e04539c3413f38481d9b9854d52b6c4 /xlators/performance/quick-read/src/quick-read.c | |
| parent | 99e63168c498cf57f3f8fabab1d2b86a4ea639ce (diff) | |
quick-read: refactor
- peel out 'open behind' functionality into a separate translator
- issue where, if file size had grown by revalidate, data was not flushed
- removed unnecessary acquistion of table->lock (e.g in qr_lookup())
- keep inode ctx persistent, prune only data (effectively changing the
order of lock acquisition from INODE -> TABLE)
- validation with readdirplus
- use variable size iobufs to simply cached reads
Change-Id: If1586d0298fd1697ddff9fd7008efb3d286d436a
BUG: 846240
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4403
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Diffstat (limited to 'xlators/performance/quick-read/src/quick-read.c')
| -rw-r--r-- | xlators/performance/quick-read/src/quick-read.c | 3695 |
1 files changed, 405 insertions, 3290 deletions
diff --git a/xlators/performance/quick-read/src/quick-read.c b/xlators/performance/quick-read/src/quick-read.c index 867900b902c..34e27138f26 100644 --- a/xlators/performance/quick-read/src/quick-read.c +++ b/xlators/performance/quick-read/src/quick-read.c @@ -11,182 +11,102 @@ #include "quick-read.h" #include "statedump.h" -#define QR_DEFAULT_CACHE_SIZE 134217728 +qr_inode_t *qr_inode_ctx_get (xlator_t *this, inode_t *inode); +void __qr_inode_prune (qr_inode_table_t *table, qr_inode_t *qr_inode); -struct volume_options options[]; -void -_fd_unref (fd_t *fd); - -void -qr_local_free (qr_local_t *local) +int +__qr_inode_ctx_set (xlator_t *this, inode_t *inode, qr_inode_t *qr_inode) { - if (local == NULL) { - goto out; - } - - if (local->stub != NULL) { - call_stub_destroy (local->stub); - } + uint64_t value = 0; + int ret = -1; - GF_FREE (local->path); + value = (long) qr_inode; - mem_put (local); + ret = __inode_ctx_set (inode, this, &value); -out: - return; + return ret; } -qr_local_t * -qr_local_new (xlator_t *this) -{ - qr_local_t *local = NULL; - - local = mem_get0 (this->local_pool); - if (local == NULL) { - goto out; - } - - LOCK_INIT (&local->lock); - INIT_LIST_HEAD (&local->list); -out: - return local; -} - - -int32_t -qr_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, - off_t offset, uint32_t flags, dict_t *xdata); - - -static void -qr_loc_wipe (loc_t *loc) +qr_inode_t * +__qr_inode_ctx_get (xlator_t *this, inode_t *inode) { - if (loc == NULL) { - goto out; - } + qr_inode_t *qr_inode = NULL; + uint64_t value = 0; + int ret = -1; - if (loc->path) { - GF_FREE ((char *)loc->path); - loc->path = NULL; - } + ret = __inode_ctx_get (inode, this, &value); + if (ret) + return NULL; - if (loc->inode) { - inode_unref (loc->inode); - loc->inode = NULL; - } - - if (loc->parent) { - inode_unref (loc->parent); - loc->parent = NULL; - } + qr_inode = (void *) ((long) value); -out: - return; + return qr_inode; } -static int32_t -qr_loc_fill (loc_t *loc, inode_t *inode, char *path) +qr_inode_t * +qr_inode_ctx_get (xlator_t *this, inode_t *inode) { - int32_t ret = -1; - - GF_VALIDATE_OR_GOTO_WITH_ERROR ("quick-read", loc, out, errno, EINVAL); - GF_VALIDATE_OR_GOTO_WITH_ERROR ("quick-read", inode, out, errno, - EINVAL); - GF_VALIDATE_OR_GOTO_WITH_ERROR ("quick-read", path, out, errno, EINVAL); - - loc->inode = inode_ref (inode); - uuid_copy (loc->gfid, inode->gfid); + qr_inode_t *qr_inode = NULL; - loc->path = gf_strdup (path); - if (!loc->path) - goto out; - - ret = 0; -out: - if (ret == -1) { - qr_loc_wipe (loc); - } + LOCK (&inode->lock); + { + qr_inode = __qr_inode_ctx_get (this, inode); + } + UNLOCK (&inode->lock); - return ret; + return qr_inode; } -void -qr_resume_pending_ops (qr_fd_ctx_t *qr_fd_ctx, int32_t op_ret, int32_t op_errno) +qr_inode_t * +qr_inode_new (xlator_t *this, inode_t *inode) { - call_stub_t *stub = NULL, *tmp = NULL; - struct list_head waiting_ops = {0, }; - - GF_VALIDATE_OR_GOTO ("quick-read", qr_fd_ctx, out); - - INIT_LIST_HEAD (&waiting_ops); - - LOCK (&qr_fd_ctx->lock); - { - qr_fd_ctx->open_in_transit = 0; - list_splice_init (&qr_fd_ctx->waiting_ops, - &waiting_ops); - } - UNLOCK (&qr_fd_ctx->lock); + qr_inode_t *qr_inode = NULL; - if (!list_empty (&waiting_ops)) { - list_for_each_entry_safe (stub, tmp, &waiting_ops, list) { - list_del_init (&stub->list); - if (op_ret < 0) { - qr_local_t *local = NULL; + qr_inode = GF_CALLOC (1, sizeof (*qr_inode), gf_qr_mt_qr_inode_t); + if (!qr_inode) + return NULL; - local = stub->frame->local; - local->op_ret = op_ret; - local->op_errno = op_errno; - } + INIT_LIST_HEAD (&qr_inode->lru); - call_resume (stub); - } - } + qr_inode->priority = 0; /* initial priority */ -out: - return; + return qr_inode; } -static void -qr_fd_ctx_free (qr_fd_ctx_t *qr_fd_ctx) +qr_inode_t * +qr_inode_ctx_get_or_new (xlator_t *this, inode_t *inode) { - GF_VALIDATE_OR_GOTO ("quick-read", qr_fd_ctx, out); + qr_inode_t *qr_inode = NULL; + int ret = -1; + qr_private_t *priv = NULL; - GF_ASSERT (list_empty (&qr_fd_ctx->waiting_ops)); + priv = this->private; - LOCK (&qr_fd_ctx->fd->inode->lock); - { - list_del_init (&qr_fd_ctx->inode_list); - } - UNLOCK (&qr_fd_ctx->fd->inode->lock); - - GF_FREE (qr_fd_ctx->path); - GF_FREE (qr_fd_ctx); - -out: - return; -} - - -static inline uint32_t -is_match (const char *path, const char *pattern) -{ - int32_t ret = 0; - uint32_t match = 0; + LOCK (&inode->lock); + { + qr_inode = __qr_inode_ctx_get (this, inode); + if (qr_inode) + goto unlock; - GF_VALIDATE_OR_GOTO ("quick-read", path, out); - GF_VALIDATE_OR_GOTO ("quick-read", pattern, out); + qr_inode = qr_inode_new (this, inode); + if (!qr_inode) + goto unlock; - ret = fnmatch (pattern, path, FNM_NOESCAPE); - match = (ret == 0); + ret = __qr_inode_ctx_set (this, inode, qr_inode); + if (ret) { + __qr_inode_prune (&priv->table, qr_inode); + GF_FREE (qr_inode); + } + } +unlock: + UNLOCK (&inode->lock); -out: - return match; + return qr_inode; } @@ -196,3230 +116,527 @@ qr_get_priority (qr_conf_t *conf, const char *path) uint32_t priority = 0; struct qr_priority *curr = NULL; - GF_VALIDATE_OR_GOTO ("quick-read", conf, out); - GF_VALIDATE_OR_GOTO ("quick-read", path, out); - list_for_each_entry (curr, &conf->priority_list, list) { - if (is_match (path, curr->pattern)) + if (fnmatch (curr->pattern, path, FNM_NOESCAPE) == 0) priority = curr->priority; } -out: return priority; } -/* To be called with this-priv->table.lock held */ -qr_inode_t * -__qr_inode_alloc (xlator_t *this, char *path, inode_t *inode) +void +__qr_inode_register (qr_inode_table_t *table, qr_inode_t *qr_inode) { - qr_inode_t *qr_inode = NULL; - qr_private_t *priv = NULL; - int priority = 0; - - GF_VALIDATE_OR_GOTO ("quick-read", this, out); - GF_VALIDATE_OR_GOTO (this->name, path, out); - GF_VALIDATE_OR_GOTO (this->name, inode, out); - - priv = this->private; - GF_VALIDATE_OR_GOTO (this->name, priv, out); + if (!qr_inode->data) + return; - qr_inode = GF_CALLOC (1, sizeof (*qr_inode), gf_qr_mt_qr_inode_t); - if (qr_inode == NULL) { - goto out; - } + if (list_empty (&qr_inode->lru)) + /* first time addition of this qr_inode into table */ + table->cache_used += qr_inode->size; + else + list_del_init (&qr_inode->lru); - INIT_LIST_HEAD (&qr_inode->lru); - INIT_LIST_HEAD (&qr_inode->fd_list); - - priority = qr_get_priority (&priv->conf, path); - - list_add_tail (&qr_inode->lru, &priv->table.lru[priority]); - - qr_inode->inode = inode; - qr_inode->priority = priority; -out: - return qr_inode; + list_add_tail (&qr_inode->lru, &table->lru[qr_inode->priority]); } -/* To be called with qr_inode->table->lock held */ void -__qr_inode_free (qr_inode_t *qr_inode) +qr_inode_set_priority (xlator_t *this, inode_t *inode, const char *path) { - qr_fd_ctx_t *fdctx = NULL, *tmp_fdctx = NULL; + uint32_t priority = 0; + qr_inode_table_t *table = NULL; + qr_inode_t *qr_inode = NULL; + qr_private_t *priv = NULL; + qr_conf_t *conf = NULL; - GF_VALIDATE_OR_GOTO ("quick-read", qr_inode, out); + qr_inode = qr_inode_ctx_get (this, inode); + if (!qr_inode) + return; - if (qr_inode->xattr) { - dict_unref (qr_inode->xattr); - } + priv = this->private; + table = &priv->table; + conf = &priv->conf; - list_del (&qr_inode->lru); + if (path) + priority = qr_get_priority (conf, path); + else + /* retain existing priority, just bump LRU */ + priority = qr_inode->priority; - LOCK (&qr_inode->inode->lock); - { - list_for_each_entry_safe (fdctx, tmp_fdctx, &qr_inode->fd_list, - inode_list) { - list_del_init (&fdctx->inode_list); - } - } - UNLOCK (&qr_inode->inode->lock); + LOCK (&table->lock); + { + qr_inode->priority = priority; - GF_FREE (qr_inode); -out: - return; + __qr_inode_register (table, qr_inode); + } + UNLOCK (&table->lock); } + /* To be called with priv->table.lock held */ void -__qr_cache_prune (xlator_t *this) -{ - qr_private_t *priv = NULL; - qr_conf_t *conf = NULL; - qr_inode_table_t *table = NULL; - qr_inode_t *curr = NULL, *next = NULL; - int32_t index = 0; - uint64_t size_to_prune = 0; - uint64_t size_pruned = 0; - - GF_VALIDATE_OR_GOTO ("quick-read", this, out); - priv = this->private; - GF_VALIDATE_OR_GOTO (this->name, priv, out); - - table = &priv->table; - conf = &priv->conf; - - size_to_prune = table->cache_used - conf->cache_size; - - for (index=0; index < conf->max_pri; index++) { - list_for_each_entry_safe (curr, next, &table->lru[index], lru) { - size_pruned += curr->stbuf.ia_size; - inode_ctx_del (curr->inode, this, NULL); - __qr_inode_free (curr); - if (size_pruned >= size_to_prune) - goto done; - } - } - -done: - table->cache_used -= size_pruned; - -out: - return; -} - -/* To be called with table->lock held */ -inline char -__qr_need_cache_prune (qr_conf_t *conf, qr_inode_table_t *table) +__qr_inode_prune (qr_inode_table_t *table, qr_inode_t *qr_inode) { - char need_prune = 0; + GF_FREE (qr_inode->data); + qr_inode->data = NULL; - GF_VALIDATE_OR_GOTO ("quick-read", conf, out); - GF_VALIDATE_OR_GOTO ("quick-read", table, out); + if (!list_empty (&qr_inode->lru)) { + table->cache_used -= qr_inode->size; + qr_inode->size = 0; - need_prune = (table->cache_used > conf->cache_size); + list_del_init (&qr_inode->lru); + } -out: - return need_prune; + memset (&qr_inode->buf, 0, sizeof (qr_inode->buf)); } -int32_t -qr_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) -{ - data_t *content = NULL; - qr_inode_t *qr_inode = NULL; - uint64_t value = 0; - int ret = -1; - qr_conf_t *conf = NULL; - qr_inode_table_t *table = NULL; - qr_private_t *priv = NULL; - qr_local_t *local = NULL; - - GF_ASSERT (frame); - - if ((op_ret == -1) || (xdata == NULL)) { - goto out; - } - - if ((this == NULL) || (this->private == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "quick-read configuration is not found"); - op_ret = -1; - op_errno = EINVAL; - goto out; - } - - priv = this->private; - conf = &priv->conf; - table = &priv->table; - - local = frame->local; - - if (buf->ia_size > conf->max_file_size) { - goto out; - } - - if (IA_ISDIR (buf->ia_type)) { - goto out; - } - - if (inode == NULL) { - op_ret = -1; - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, - "lookup returned a NULL inode"); - goto out; - } - - content = dict_get (xdata, GF_CONTENT_KEY); - if (content == NULL) { - goto out; - } - - LOCK (&table->lock); - { - ret = inode_ctx_get (inode, this, &value); - if (ret == -1) { - qr_inode = __qr_inode_alloc (this, local->path, inode); - if (qr_inode == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto unlock; - } - - ret = inode_ctx_put (inode, this, - (uint64_t)(long)qr_inode); - if (ret == -1) { - __qr_inode_free (qr_inode); - qr_inode = NULL; - op_ret = -1; - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, - "cannot set quick-read context in " - "inode (gfid:%s)", - uuid_utoa (inode->gfid)); - goto unlock; - } - } else { - qr_inode = (qr_inode_t *)(long)value; - if (qr_inode == NULL) { - op_ret = -1; - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, - "cannot find quick-read context in " - "inode (gfid:%s)", - uuid_utoa (inode->gfid)); - goto unlock; - } - } - - /* - * Create our own internal dict and migrate the file content - * over to it so it isn't floating around in other translator - * caches. - */ - if (qr_inode->xattr) { - dict_unref (qr_inode->xattr); - qr_inode->xattr = NULL; - table->cache_used -= qr_inode->stbuf.ia_size; - } - - qr_inode->xattr = dict_new(); - if (!qr_inode->xattr) { - op_ret = -1; - op_errno = ENOMEM; - goto unlock; - } - - if (dict_set(qr_inode->xattr, GF_CONTENT_KEY, content) < 0) { - op_ret = -1; - op_errno = ENOMEM; - goto unlock; - } - - dict_del(xdata, GF_CONTENT_KEY); - - qr_inode->stbuf = *buf; - table->cache_used += buf->ia_size; - - gettimeofday (&qr_inode->tv, NULL); - if (__qr_need_cache_prune (conf, table)) { - __qr_cache_prune (this); - } - } -unlock: - UNLOCK (&table->lock); - -out: - /* - * FIXME: content size in dict can be greater than the size application - * requested for. Applications need to be careful till this is fixed. - */ - QR_STACK_UNWIND (lookup, frame, op_ret, op_errno, inode, buf, xdata, - postparent); - - return 0; -} - - -int32_t -qr_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, - dict_t *xdata) +void +qr_inode_prune (xlator_t *this, inode_t *inode) { - qr_conf_t *conf = NULL; - dict_t *new_req_dict = NULL; - int32_t op_ret = -1, op_errno = EINVAL; - data_t *content = NULL; - uint64_t requested_size = 0, size = 0, value = 0; - char cached = 0; - qr_inode_t *qr_inode = NULL; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - qr_local_t *local = NULL; - - GF_ASSERT (frame); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, loc, unwind); - - priv = this->private; - GF_VALIDATE_OR_GOTO (frame->this->name, priv, unwind); - - conf = &priv->conf; - if (conf == NULL) { - op_ret = -1; - op_errno = EINVAL; - goto unwind; - } - - table = &priv->table; - - local = qr_local_new (this); - GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, local, unwind, op_errno, - ENOMEM); - - frame->local = local; - - local->path = gf_strdup (loc->path); - GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, local, unwind, op_errno, - ENOMEM); - LOCK (&table->lock); - { - op_ret = inode_ctx_get (loc->inode, this, &value); - if (op_ret == 0) { - qr_inode = (qr_inode_t *)(long)value; - if (qr_inode != NULL) { - if (qr_inode->xattr) { - cached = 1; - } - } - } - } - UNLOCK (&table->lock); - - if ((xdata == NULL) && (conf->max_file_size > 0)) { - new_req_dict = xdata = dict_new (); - if (xdata == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - } - - if (!cached) { - if (xdata) { - content = dict_get (xdata, GF_CONTENT_KEY); - if (content) { - requested_size = data_to_uint64 (content); - } - } - - if ((conf->max_file_size > 0) - && (conf->max_file_size != requested_size)) { - size = (conf->max_file_size > requested_size) ? - conf->max_file_size : requested_size; - - op_ret = dict_set (xdata, GF_CONTENT_KEY, - data_from_uint64 (size)); - if (op_ret < 0) { - op_ret = -1; - op_errno = ENOMEM; - gf_log (this->name, GF_LOG_WARNING, - "cannot set key in request dict to " - "request file " - "content during lookup cbk"); - goto unwind; - } - } - } - - STACK_WIND (frame, qr_lookup_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lookup, loc, xdata); - - if (new_req_dict) { - dict_unref (new_req_dict); - } - - return 0; + qr_private_t *priv = NULL; + qr_inode_table_t *table = NULL; + qr_inode_t *qr_inode = NULL; -unwind: - QR_STACK_UNWIND (lookup, frame, op_ret, op_errno, NULL, NULL, - NULL, NULL); + qr_inode = qr_inode_ctx_get (this, inode); + if (!qr_inode) + return; - if (new_req_dict) { - dict_unref (new_req_dict); - } + priv = this->private; + table = &priv->table; - return 0; + LOCK (&table->lock); + { + __qr_inode_prune (table, qr_inode); + } + UNLOCK (&table->lock); } -int32_t -qr_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, - int32_t op_errno, fd_t *fd, dict_t *xdata) +/* To be called with priv->table.lock held */ +void +__qr_cache_prune (qr_inode_table_t *table, qr_conf_t *conf) { - uint64_t value = 0; - int32_t ret = -1; - qr_local_t *local = NULL; - qr_inode_t *qr_inode = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - call_stub_t *stub = NULL, *tmp = NULL; - char is_open = 0; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - struct list_head waiting_ops; - - GF_ASSERT (frame); - - priv = this->private; - table = &priv->table; - - local = frame->local; - if (local != NULL) { - is_open = local->is_open; - } - - INIT_LIST_HEAD (&waiting_ops); - - ret = fd_ctx_get (fd, this, &value); - if ((ret == -1) && (op_ret != -1)) { - op_ret = -1; - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, - "cannot find quick-read context in fd (%p) opened on " - "inode (gfid: %s)", fd, uuid_utoa (fd->inode->gfid)); - goto out; - } + qr_inode_t *curr = NULL; + qr_inode_t *next = NULL; + int index = 0; + size_t size_pruned = 0; - if (value) { - qr_fd_ctx = (qr_fd_ctx_t *) (long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - qr_fd_ctx->open_in_transit = 0; - - if (op_ret == 0) { - qr_fd_ctx->opened = 1; - } - list_splice_init (&qr_fd_ctx->waiting_ops, - &waiting_ops); - } - UNLOCK (&qr_fd_ctx->lock); - - if (local && local->is_open - && ((local->open_flags & O_TRUNC) == O_TRUNC)) { - LOCK (&table->lock); - { - ret = inode_ctx_del (fd->inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long) value; - - if (qr_inode != NULL) { - __qr_inode_free (qr_inode); - } - } - } - UNLOCK (&table->lock); - } + for (index = 0; index < conf->max_pri; index++) { + list_for_each_entry_safe (curr, next, &table->lru[index], lru) { - if (!list_empty (&waiting_ops)) { - list_for_each_entry_safe (stub, tmp, &waiting_ops, - list) { - list_del_init (&stub->list); - if (op_ret < 0) { - qr_local_t *local = NULL; + size_pruned += curr->size; - local = stub->frame->local; - local->op_ret = op_ret; - local->op_errno = op_errno; - } + __qr_inode_prune (table, curr); - call_resume (stub); - } + if (table->cache_used < conf->cache_size) + return; } } -out: - if (is_open) { - QR_STACK_UNWIND (open, frame, op_ret, op_errno, fd, xdata); - } else { - STACK_DESTROY (frame->root); - } - return 0; + return; } -int32_t -qr_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, - fd_t *fd, dict_t *xdata) +void +qr_cache_prune (xlator_t *this) { - qr_inode_t *qr_inode = NULL; - int32_t ret = -1; - uint64_t filep = 0; - char content_cached = 0; - qr_fd_ctx_t *qr_fd_ctx = NULL, *tmp_fd_ctx = NULL; - int32_t op_ret = -1, op_errno = EINVAL; - qr_local_t *local = NULL; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - - GF_ASSERT (frame); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this->private, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); + qr_private_t *priv = NULL; + qr_conf_t *conf = NULL; + qr_inode_table_t *table = NULL; priv = this->private; table = &priv->table; + conf = &priv->conf; - tmp_fd_ctx = qr_fd_ctx = GF_CALLOC (1, sizeof (*qr_fd_ctx), - gf_qr_mt_qr_fd_ctx_t); - if (qr_fd_ctx == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - - LOCK_INIT (&qr_fd_ctx->lock); - INIT_LIST_HEAD (&qr_fd_ctx->waiting_ops); - INIT_LIST_HEAD (&qr_fd_ctx->inode_list); - qr_fd_ctx->fd = fd; - - qr_fd_ctx->path = gf_strdup (loc->path); - if (qr_fd_ctx->path == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - - qr_fd_ctx->flags = flags; - - ret = fd_ctx_set (fd, this, (uint64_t)(long)qr_fd_ctx); - if (ret == -1) { - op_ret = -1; - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, - "cannot set quick-read context in " - "fd (%p) opened on inode (gfid:%s)", fd, - uuid_utoa (fd->inode->gfid)); - goto unwind; - } - - tmp_fd_ctx = NULL; - - local = qr_local_new (this); - if (local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - - local->is_open = 1; - local->open_flags = flags; - frame->local = local; - LOCK (&table->lock); - { - ret = inode_ctx_get (fd->inode, this, &filep); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long) filep; - if (qr_inode) { - if (qr_inode->xattr) { - content_cached = 1; - } - } - } - } - UNLOCK (&table->lock); - - if (content_cached && (flags & O_DIRECTORY)) { - op_ret = -1; - op_errno = ENOTDIR; - gf_log (this->name, GF_LOG_WARNING, - "open with O_DIRECTORY flag received on non-directory"); - goto unwind; - } - - if (!content_cached || ((flags & O_ACCMODE) == O_WRONLY) - || ((flags & O_TRUNC) == O_TRUNC) - || ((flags & O_DIRECT) == O_DIRECT)) { - LOCK (&qr_fd_ctx->lock); - { - /* - * we really need not set this flag, since open is - * not yet unwound. - */ - - qr_fd_ctx->open_in_transit = 1; - if ((flags & O_DIRECT) == O_DIRECT) { - qr_fd_ctx->disabled = 1; - } - } - UNLOCK (&qr_fd_ctx->lock); - goto wind; - } else { - op_ret = 0; - op_errno = 0; - - LOCK (&fd->inode->lock); - { - list_add_tail (&qr_fd_ctx->inode_list, - &qr_inode->fd_list); - } - UNLOCK (&fd->inode->lock); - } - -unwind: - if (tmp_fd_ctx != NULL) { - qr_fd_ctx_free (tmp_fd_ctx); - } - - QR_STACK_UNWIND (open, frame, op_ret, op_errno, fd, NULL); - return 0; - -wind: - STACK_WIND (frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, loc, flags, fd, - xdata); - return 0; -} - - -static inline time_t -qr_time_elapsed (struct timeval *now, struct timeval *then) -{ - time_t time_elapsed = 0; - - GF_VALIDATE_OR_GOTO ("quick-read", now, out); - GF_VALIDATE_OR_GOTO ("quick-read", then, out); - - time_elapsed = now->tv_sec - then->tv_sec; - -out: - return time_elapsed; + LOCK (&table->lock); + { + if (table->cache_used > conf->cache_size) + __qr_cache_prune (table, conf); + } + UNLOCK (&table->lock); } -static inline char -qr_need_validation (qr_conf_t *conf, qr_inode_t *qr_inode) +void * +qr_content_extract (dict_t *xdata) { - struct timeval now = {0, }; - char need_validation = 0; + data_t *data = NULL; + void *content = NULL; - GF_VALIDATE_OR_GOTO ("quick-read", conf, out); - GF_VALIDATE_OR_GOTO ("quick-read", qr_inode, out); + data = dict_get (xdata, GF_CONTENT_KEY); + if (!data) + return NULL; - gettimeofday (&now, NULL); + content = GF_CALLOC (1, data->len, gf_qr_mt_content_t); + if (!content) + return NULL; - if (qr_time_elapsed (&now, &qr_inode->tv) >= conf->cache_timeout) - need_validation = 1; + memcpy (content, data->data, data->len); -out: - return need_validation; + return content; } -static int32_t -qr_validate_cache_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *buf, - dict_t *xdata) +void +qr_content_update (xlator_t *this, qr_inode_t *qr_inode, void *data, + struct iatt *buf) { - qr_inode_t *qr_inode = NULL; - qr_local_t *local = NULL; - uint64_t value = 0; - int32_t ret = 0; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - call_stub_t *stub = NULL; - - GF_ASSERT (frame); - if (this == NULL) { - op_ret = -1; - op_errno = EINVAL; - gf_log (frame->this->name, GF_LOG_WARNING, - "xlator object (this) is NULL"); - goto unwind; - } - - local = frame->local; - if ((local == NULL) || ((local->fd) == NULL)) { - op_ret = -1; - op_errno = EINVAL; - gf_log (frame->this->name, GF_LOG_WARNING, - (local == NULL) ? "local is NULL" - : "fd is not stored in local"); - goto unwind; - } - - local->just_validated = 1; - - if (op_ret == -1) { - goto unwind; - } + qr_private_t *priv = NULL; + qr_inode_table_t *table = NULL; priv = this->private; table = &priv->table; - LOCK (&table->lock); - { - ret = inode_ctx_get (local->fd->inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long) value; - } + LOCK (&table->lock); + { + __qr_inode_prune (table, qr_inode); - if (qr_inode != NULL) { - gettimeofday (&qr_inode->tv, NULL); + qr_inode->data = data; + qr_inode->size = buf->ia_size; - if ((qr_inode->stbuf.ia_mtime != buf->ia_mtime) - || (qr_inode->stbuf.ia_mtime_nsec - != buf->ia_mtime_nsec)) { - inode_ctx_del (local->fd->inode, this, NULL); - __qr_inode_free (qr_inode); - } - } - } - UNLOCK (&table->lock); + qr_inode->ia_mtime = buf->ia_mtime; + qr_inode->ia_mtime_nsec = buf->ia_mtime_nsec; - stub = local->stub; - local->stub = NULL; + qr_inode->buf = *buf; - call_resume (stub); + gettimeofday (&qr_inode->last_refresh, NULL); - return 0; + __qr_inode_register (table, qr_inode); + } + UNLOCK (&table->lock); -unwind: - /* this is actually unwind of readv */ - QR_STACK_UNWIND (readv, frame, op_ret, op_errno, NULL, -1, NULL, NULL, - NULL); - return 0; + qr_cache_prune (this); } -int32_t -qr_validate_cache_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - dict_t *xdata) +gf_boolean_t +qr_size_fits (qr_conf_t *conf, struct iatt *buf) { - qr_local_t *local = NULL; - int32_t op_ret = -1, op_errno = -1; - - GF_ASSERT (frame); - GF_VALIDATE_OR_GOTO (frame->this->name, this, out); - - local = frame->local; - if (local == NULL) { - op_ret = -1; - op_errno = EINVAL; - } else { - op_ret = local->op_ret; - op_errno = local->op_errno; - } - -out: - if (op_ret == -1) { - qr_validate_cache_cbk (frame, NULL, this, op_ret, op_errno, - NULL, NULL); - } else { - STACK_WIND (frame, qr_validate_cache_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fstat, fd, xdata); - } - - return 0; + return (buf->ia_size <= conf->max_file_size); } -int -qr_validate_cache (call_frame_t *frame, xlator_t *this, fd_t *fd, - call_stub_t *stub) +gf_boolean_t +qr_mtime_equal (qr_inode_t *qr_inode, struct iatt *buf) { - int ret = -1; - int flags = 0; - uint64_t value = 0; - loc_t loc = {0, }; - char *path = NULL; - qr_local_t *local = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - call_stub_t *validate_stub = NULL; - char need_open = 0, can_wind = 0, validate_cbk_called = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - GF_VALIDATE_OR_GOTO (frame->this->name, this, out); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, out); - GF_VALIDATE_OR_GOTO (frame->this->name, stub, out); - - if (frame->local == NULL) { - local = qr_local_new (this); - if (local == NULL) { - goto out; - } - } else { - local = frame->local; - } - - local->fd = fd; - local->stub = stub; - frame->local = local; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - validate_stub = fop_fstat_stub (frame, - qr_validate_cache_helper, - fd, NULL); - if (validate_stub == NULL) { - ret = -1; - if (need_open) { - qr_fd_ctx->open_in_transit = 0; - } - goto unlock; - } - - list_add_tail (&validate_stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - - if (ret == -1) { - goto out; - } - } else { - can_wind = 1; - } - - if (need_open) { - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - validate_cbk_called = 1; - goto out; - } - - ret = qr_loc_fill (&loc, fd->inode, path); - if (ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - validate_cbk_called = 1; - STACK_DESTROY (open_frame->root); - goto out; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, - &loc, flags, fd, NULL); - - qr_loc_wipe (&loc); - } else if (can_wind) { - STACK_WIND (frame, qr_validate_cache_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fstat, fd, NULL); - } - - ret = 0; -out: - if ((ret < 0) && !validate_cbk_called) { - if (frame->local == NULL) { - call_stub_destroy (stub); - } - - qr_validate_cache_cbk (frame, NULL, this, -1, errno, NULL, NULL); - } - return ret; -} - - -int32_t -qr_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, dict_t *xdata) -{ - GF_ASSERT (frame); - - QR_STACK_UNWIND (readv, frame, op_ret, op_errno, vector, count, - stbuf, iobref, xdata); - return 0; + return (qr_inode->ia_mtime == buf->ia_mtime && + qr_inode->ia_mtime_nsec == buf->ia_mtime_nsec); } -int32_t -qr_readv_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, - off_t offset, uint32_t flags, dict_t *xdata) -{ - qr_local_t *local = NULL; - int32_t op_errno = EINVAL, ret = 0; - uint64_t value = 0; - qr_fd_ctx_t *fdctx = NULL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding read call", - fdctx ? fdctx->path : NULL, strerror (errno)); - goto unwind; - } - - STACK_WIND (frame, qr_readv_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->readv, fd, size, offset, flags, - xdata); - return 0; - -unwind: - QR_STACK_UNWIND (readv, frame, -1, op_errno, NULL, 0, NULL, NULL, NULL); - return 0; -} - - -int32_t -qr_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, - off_t offset, uint32_t read_flags, dict_t *xdata) +void +__qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf) { - qr_inode_t *qr_inode = NULL; - int32_t ret = -1, op_ret = -1, op_errno = -1; - uint64_t value = 0; - int count = -1, flags = 0, i = 0; - char content_cached = 0, need_validation = 0; - char need_open = 0, can_wind = 0, need_unwind = 0; - struct iobuf *iobuf = NULL; - struct iobref *iobref = NULL; - struct iatt stbuf = {0, }; - data_t *content = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - call_stub_t *stub = NULL; - loc_t loc = {0, }; - qr_conf_t *conf = NULL; - struct iovec *vector = NULL; - char *path = NULL; - off_t start = 0, end = 0; - size_t len = 0; - struct iobuf_pool *iobuf_pool = NULL; - qr_local_t *local = NULL; - char just_validated = 0; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - call_frame_t *open_frame = NULL; - - op_ret = 0; + qr_private_t *priv = NULL; + qr_inode_table_t *table = NULL; + qr_conf_t *conf = NULL; priv = this->private; - conf = &priv->conf; table = &priv->table; + conf = &priv->conf; - local = frame->local; - - if (local != NULL) { - just_validated = local->just_validated; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - if (qr_fd_ctx != NULL) { - if (qr_fd_ctx->disabled) { - goto out; - } - } - } - - iobuf_pool = this->ctx->iobuf_pool; - - LOCK (&table->lock); - { - ret = inode_ctx_get (fd->inode, this, &value); - if (ret) - goto unlock; - - qr_inode = (qr_inode_t *)(long)value; - if (!qr_inode || !qr_inode->xattr) - goto unlock; - - if (!just_validated - && qr_need_validation (conf, qr_inode)) { - need_validation = 1; - goto unlock; - } - - content = dict_get (qr_inode->xattr, GF_CONTENT_KEY); - - stbuf = qr_inode->stbuf; - content_cached = 1; - list_move_tail (&qr_inode->lru, - &table->lru[qr_inode->priority]); - - if (offset > content->len) { - op_ret = 0; - end = content->len; - } else { - if ((offset + size) > content->len) { - op_ret = content->len - offset; - end = content->len; - } else { - op_ret = size; - end = offset + size; - } - } - - count = (op_ret / iobuf_pool->default_page_size); - if ((op_ret % iobuf_pool->default_page_size) != 0) { - count++; - } - - if (count == 0) { - op_ret = 0; - goto unlock; - } - - vector = GF_CALLOC (count, sizeof (*vector), gf_qr_mt_iovec); - if (vector == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - goto unlock; - } - - iobref = iobref_new (); - if (iobref == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - goto unlock; - } - - for (i = 0; i < count; i++) { - /* TODO: Now that we have support for variable - io-buf-sizes, i guess we need to get rid of - default size here */ - iobuf = iobuf_get (iobuf_pool); - if (iobuf == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - goto unlock; - } - - start = offset + (iobuf_pool->default_page_size * i); - - if (start > end) { - len = 0; - } else { - len = (iobuf_pool->default_page_size > - ((end - start)) ? (end - start) : - iobuf_pool->default_page_size); - - memcpy (iobuf->ptr, content->data + start, len); - } - - iobref_add (iobref, iobuf); - iobuf_unref (iobuf); - - vector[i].iov_base = iobuf->ptr; - vector[i].iov_len = len; - } - } -unlock: - UNLOCK (&table->lock); - -out: - if (content_cached || need_unwind) { - QR_STACK_UNWIND (readv, frame, op_ret, op_errno, vector, - count, &stbuf, iobref, NULL); - - } else if (need_validation) { - stub = fop_readv_stub (frame, qr_readv, fd, size, offset, - read_flags, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - goto out; - } - - qr_validate_cache (frame, this, fd, stub); - } else { - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - if (frame->local == NULL) { - frame->local - = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto fdctx_unlock; - } - } - - stub = fop_readv_stub (frame, - qr_readv_helper, - fd, size, - offset, - read_flags, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto fdctx_unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - fdctx_unlock: - UNLOCK (&qr_fd_ctx->lock); - - if (op_ret == -1) { - need_unwind = 1; - goto out; - } - } else { - can_wind = 1; - } - - if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, - &loc, flags, fd, NULL); - - qr_loc_wipe (&loc); - } else if (can_wind) { - STACK_WIND (frame, qr_readv_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->readv, fd, size, - offset, read_flags, xdata); - } - } - -ret: - GF_FREE (vector); - - if (iobref) { - iobref_unref (iobref); - } - - return 0; -} - - -int32_t -qr_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) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (writev, frame, op_ret, op_errno, prebuf, postbuf, - xdata); - return 0; -} - - -int32_t -qr_writev_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iovec *vector, int32_t count, off_t off, - uint32_t flags, struct iobref *iobref, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); + if (qr_size_fits (conf, buf) && qr_mtime_equal (qr_inode, buf)) { + qr_inode->buf = *buf; - if (local->op_ret < 0) { - op_errno = local->op_errno; + gettimeofday (&qr_inode->last_refresh, NULL); - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } + __qr_inode_register (table, qr_inode); + } else { + __qr_inode_prune (table, qr_inode); + } - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding write call", - fdctx ? fdctx->path : NULL, strerror (errno)); - goto unwind; - } - - STACK_WIND (frame, qr_writev_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->writev, fd, vector, count, off, - flags, iobref, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (writev, frame, -1, op_errno, NULL, NULL, NULL); - return 0; + return; } -int32_t -qr_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *vector, - int32_t count, off_t off, uint32_t wr_flags, struct iobref *iobref, - dict_t *xdata) +void +qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf) { - uint64_t value = 0; - int flags = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_inode_t *qr_inode = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t op_ret = -1, op_errno = -1, ret = -1; - char can_wind = 0, need_unwind = 0, need_open = 0; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; - call_frame_t *open_frame = NULL; + qr_private_t *priv = NULL; + qr_inode_table_t *table = NULL; priv = this->private; table = &priv->table; - ret = fd_ctx_get (fd, this, &value); - - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - LOCK (&table->lock); - { - ret = inode_ctx_get (fd->inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long)value; - if (qr_inode != NULL) { - inode_ctx_del (fd->inode, this, NULL); - __qr_inode_free (qr_inode); - } - } - } - UNLOCK (&table->lock); - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_writev_stub (frame, qr_writev_helper, - fd, vector, count, off, - wr_flags, iobref, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - - if (need_unwind) { - QR_STACK_UNWIND (writev, frame, op_ret, op_errno, NULL, NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_writev_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->writev, fd, vector, count, - off, wr_flags, iobref, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; + LOCK (&table->lock); + { + __qr_content_refresh (this, qr_inode, buf); + } + UNLOCK (&table->lock); } -int32_t -qr_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, - int32_t op_errno, struct iatt *buf, dict_t *xdata) +gf_boolean_t +__qr_cache_is_fresh (xlator_t *this, qr_inode_t *qr_inode) { - QR_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata); - return 0; -} - - -int32_t -qr_fstat_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); + qr_conf_t *conf = NULL; + struct timeval now; + struct timeval diff; - if (local->op_ret < 0) { - op_errno = local->op_errno; + gettimeofday (&now, NULL); - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } + timersub (&now, &qr_inode->last_refresh, &diff); - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fstat call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_fstat_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fstat, fd, xdata); - return 0; + if (diff.tv_sec >= conf->cache_timeout) + return _gf_false; -unwind: - QR_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL); - return 0; + return _gf_true; } -int32_t -qr_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) -{ - qr_fd_ctx_t *qr_fd_ctx = NULL; - char need_open = 0, can_wind = 0, need_unwind = 0; - uint64_t value = 0; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - call_stub_t *stub = NULL; - loc_t loc = {0, }; - char *path = NULL; - int flags = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto unwind; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fstat_stub (frame, qr_fstat_helper, - fd, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -unwind: - if (need_unwind) { - QR_STACK_UNWIND (fstat, frame, op_ret, op_errno, NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fstat_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fstat, fd, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_fsetattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, - struct iatt *preop, struct iatt *postop, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (fsetattr, frame, op_ret, op_errno, preop, postop, - xdata); - return 0; -} - - -int32_t -qr_fsetattr_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iatt *stbuf, int32_t valid, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fsetattr " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_fsetattr_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fsetattr, fd, stbuf, - valid, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (fsetattr, frame, -1, op_errno, NULL, NULL, NULL); - return 0; -} - - -int32_t -qr_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iatt *stbuf, int32_t valid, dict_t *xdata) -{ - uint64_t value = 0; - int flags = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" : - "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fsetattr_stub (frame, - qr_fsetattr_helper, - fd, stbuf, valid, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (fsetattr, frame, op_ret, op_errno, NULL, NULL, - NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fsetattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsetattr, fd, stbuf, - valid, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_fsetxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno, xdata); - return 0; -} - - -int32_t -qr_fsetxattr_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - dict_t *dict, int32_t flags, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fsetxattr " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_fsetxattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsetxattr, fd, dict, flags, - xdata); - return 0; - -unwind: - QR_STACK_UNWIND (fsetxattr, frame, -1, op_errno, NULL); - return 0; -} - - -int32_t -qr_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, - int32_t flags, dict_t *xdata) -{ - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - int open_flags = 0; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) " - "is NULL" : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - open_flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fsetxattr_stub (frame, - qr_fsetxattr_helper, - fd, dict, flags, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fsetxattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsetxattr, fd, dict, - flags, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, open_flags, - fd, NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_fgetxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *dict, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict, xdata); - return 0; -} - - -int32_t -qr_fgetxattr_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - const char *name, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fgetxattr " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_fgetxattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fgetxattr, fd, name, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (fgetxattr, frame, -1, op_errno, NULL, NULL); - return 0; -} - - -int32_t -qr_fgetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, const char *name, - dict_t *xdata) -{ - int flags = 0; - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - /* - * FIXME: Can quick-read use the extended attributes stored in the - * cache? this needs to be discussed. - */ - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" : - "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fgetxattr_stub (frame, - qr_fgetxattr_helper, - fd, name, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (open, frame, op_ret, op_errno, NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fgetxattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fgetxattr, fd, name, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_flush_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, - int32_t op_errno, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (flush, frame, op_ret, op_errno, xdata); - return 0; -} - - -int32_t -qr_flush_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding flush call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_flush_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->flush, fd, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (flush, frame, -1, op_errno, NULL); - return 0; -} - - -int32_t -qr_flush (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) -{ - uint64_t value = 0; - call_stub_t *stub = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char can_wind = 0, need_unwind = 0; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - if (qr_fd_ctx->opened) { - can_wind = 1; - } else if (qr_fd_ctx->open_in_transit) { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_flush_stub (frame, qr_flush_helper, - fd, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } else { - op_ret = 0; - need_unwind = 1; - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (flush, frame, op_ret, op_errno, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_flush_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->flush, fd, xdata); - } - - return 0; -} - - -int32_t -qr_fentrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (fentrylk, frame, op_ret, op_errno, xdata); - return 0; -} - - -int32_t -qr_fentrylk_helper (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) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fentrylk " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND(frame, qr_fentrylk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fentrylk, volume, fd, basename, - cmd, type, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (fentrylk, frame, -1, op_errno, NULL); - return 0; -} - - -int32_t -qr_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) -{ - int flags = 0; - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fentrylk_stub (frame, - qr_fentrylk_helper, - volume, fd, basename, - cmd, type, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (fentrylk, frame, op_ret, op_errno, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fentrylk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fentrylk, volume, fd, - basename, cmd, type, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_finodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (finodelk, frame, op_ret, op_errno, xdata); - return 0; -} - - -int32_t -qr_finodelk_helper (call_frame_t *frame, xlator_t *this, const char *volume, - fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding finodelk " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_finodelk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->finodelk, volume, fd, cmd, lock, - xdata); - return 0; - -unwind: - QR_STACK_UNWIND (finodelk, frame, -1, op_errno, NULL); - return 0; -} - - -int32_t -qr_finodelk (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, - int32_t cmd, struct gf_flock *lock, dict_t *xdata) -{ - int flags = 0; - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_finodelk_stub (frame, - qr_finodelk_helper, - volume, fd, cmd, - lock, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (finodelk, frame, op_ret, op_errno, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_finodelk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->finodelk, volume, fd, - cmd, lock, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_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, - dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (fsync, frame, op_ret, op_errno, prebuf, postbuf, xdata); - return 0; -} - - -int32_t -qr_fsync_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags, - dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; - - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding fsync call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_fsync_cbk, FIRST_CHILD (this), - FIRST_CHILD(this)->fops->fsync, fd, flags, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (fsync, frame, -1, op_errno, NULL, NULL, NULL); - return 0; -} - - -int32_t -qr_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags, - dict_t *xdata) -{ - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - int open_flags = 0; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - open_flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_fsync_stub (frame, qr_fsync_helper, - fd, flags, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (fsync, frame, op_ret, op_errno, NULL, NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_fsync_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsync, fd, flags, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, open_flags, - fd, NULL); - - qr_loc_wipe (&loc); - } - -ret: - return 0; -} - - -int32_t -qr_ftruncate_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) +int +qr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, inode_t *inode_ret, + struct iatt *buf, dict_t *xdata, struct iatt *postparent) { - int32_t ret = 0; - uint64_t value = 0; + void *content = NULL; qr_inode_t *qr_inode = NULL; - qr_local_t *local = NULL; - qr_private_t *priv = NULL; - qr_inode_table_t *table = NULL; + inode_t *inode = NULL; - GF_ASSERT (frame); + inode = frame->local; + frame->local = NULL; if (op_ret == -1) { + qr_inode_prune (this, inode); goto out; - } - - local = frame->local; - if ((local == NULL) || (local->fd == NULL) - || (local->fd->inode == NULL)) { - op_ret = -1; - op_errno = EINVAL; - gf_log (frame->this->name, GF_LOG_WARNING, "cannot get inode"); - goto out; - } - - if ((this == NULL) || (this->private == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "cannot get quick read configuration from xlator " - "object"); - op_ret = -1; - op_errno = EINVAL; - goto out; - } - - priv = this->private; - table = &priv->table; - - LOCK (&table->lock); - { - ret = inode_ctx_get (local->fd->inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long) value; - - if (qr_inode) { - if (qr_inode->stbuf.ia_size != postbuf->ia_size) - { - inode_ctx_del (local->fd->inode, this, - NULL); - __qr_inode_free (qr_inode); - } - } - } - } - UNLOCK (&table->lock); - + } + + if (dict_get (xdata, "sh-failed")) { + qr_inode_prune (this, inode); + goto out; + } + + content = qr_content_extract (xdata); + + if (content) { + /* new content came along, always replace old content */ + qr_inode = qr_inode_ctx_get_or_new (this, inode); + if (!qr_inode) + /* no harm done */ + goto out; + + qr_content_update (this, qr_inode, content, buf); + } else { + /* purge old content if necessary */ + qr_inode = qr_inode_ctx_get (this, inode); + if (!qr_inode) + /* usual path for large files */ + goto out; + + qr_content_refresh (this, qr_inode, buf); + } out: - QR_STACK_UNWIND (ftruncate, frame, op_ret, op_errno, prebuf, - postbuf, xdata); - return 0; -} - - -int32_t -qr_ftruncate_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, - off_t offset, dict_t *xdata) -{ - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; + if (inode) + inode_unref (inode); - GF_ASSERT (frame); - - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); - - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } - - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding ftruncate " - "call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; - } - - STACK_WIND (frame, qr_ftruncate_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); - return 0; - -unwind: - QR_STACK_UNWIND (ftruncate, frame, -1, op_errno, NULL, NULL, NULL); + STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, inode_ret, + buf, xdata, postparent); return 0; } -int32_t -qr_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, - dict_t *xdata) +int +qr_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) { - int flags = 0; - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_local_t *local = NULL; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - local = qr_local_new (this); - if (local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - goto out; - } - - local->fd = fd; - frame->local = local; - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - stub = fop_ftruncate_stub (frame, - qr_ftruncate_helper, - fd, offset, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (ftruncate, frame, op_ret, op_errno, NULL, - NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_ftruncate_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); + qr_private_t *priv = NULL; + qr_conf_t *conf = NULL; + qr_inode_t *qr_inode = NULL; + int ret = -1; - qr_loc_wipe (&loc); - } + priv = this->private; + conf = &priv->conf; -ret: - return 0; -} + qr_inode = qr_inode_ctx_get (this, loc->inode); + if (qr_inode && qr_inode->data) + /* cached. only validate in qr_lookup_cbk */ + goto wind; + + if (!xdata) + goto wind; + + ret = 0; + if (conf->max_file_size) + ret = dict_set (xdata, GF_CONTENT_KEY, + data_from_uint64 (conf->max_file_size)); + if (ret) + gf_log (this->name, GF_LOG_WARNING, + "cannot set key in request dict (%s)", + loc->path); +wind: + frame->local = inode_ref (loc->inode); + STACK_WIND (frame, qr_lookup_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xdata); -int32_t -qr_lk_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, - int32_t op_errno, struct gf_flock *lock, dict_t *xdata) -{ - GF_ASSERT (frame); - QR_STACK_UNWIND (lk, frame, op_ret, op_errno, lock, xdata); return 0; } -int32_t -qr_lk_helper (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd, - struct gf_flock *lock, dict_t *xdata) +int +qr_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, gf_dirent_t *entries, dict_t *xdata) { - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0; - int32_t op_errno = EINVAL; + gf_dirent_t *entry = NULL; + qr_inode_t *qr_inode = NULL; - GF_ASSERT (frame); + if (op_ret <= 0) + goto unwind; - local = frame->local; - GF_VALIDATE_OR_GOTO (frame->this->name, local, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, this, unwind); - GF_VALIDATE_OR_GOTO (frame->this->name, fd, unwind); + list_for_each_entry (entry, &entries->list, list) { + if (!entry->inode) + continue; - if (local->op_ret < 0) { - op_errno = local->op_errno; - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - fdctx = (qr_fd_ctx_t *)(long) value; - } + qr_inode = qr_inode_ctx_get (this, entry->inode); + if (!qr_inode) + /* no harm */ + continue; - gf_log (this->name, GF_LOG_WARNING, - "open failed on path (%s) (%s), unwinding lk call", - fdctx ? fdctx->path : NULL, strerror (op_errno)); - goto unwind; + qr_content_refresh (this, qr_inode, &entry->d_stat); } - STACK_WIND (frame, qr_lk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lk, fd, cmd, lock, xdata); - - return 0; - unwind: - QR_STACK_UNWIND (lk, frame, -1, op_errno, lock, xdata); - return 0; + STACK_UNWIND_STRICT (readdirp, frame, op_ret, op_errno, entries, xdata); + return 0; } -int32_t -qr_lk (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd, - struct gf_flock *lock, dict_t *xdata) +int +qr_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, + size_t size, off_t offset, dict_t *xdata) { - int flags = 0; - uint64_t value = 0; - call_stub_t *stub = NULL; - char *path = NULL; - loc_t loc = {0, }; - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = -1, op_ret = -1, op_errno = EINVAL; - char need_open = 0, can_wind = 0, need_unwind = 0; - call_frame_t *open_frame = NULL; - - GF_ASSERT (frame); - if ((this == NULL) || (fd == NULL)) { - gf_log (frame->this->name, GF_LOG_WARNING, - (this == NULL) ? "xlator object (this) is NULL" - : "fd is NULL"); - need_unwind = 1; - goto out; - } - - ret = fd_ctx_get (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long)value; - } - - if (qr_fd_ctx) { - LOCK (&qr_fd_ctx->lock); - { - path = qr_fd_ctx->path; - flags = qr_fd_ctx->flags; - - if (!(qr_fd_ctx->opened - || qr_fd_ctx->open_in_transit)) { - need_open = 1; - qr_fd_ctx->open_in_transit = 1; - } - - if (qr_fd_ctx->opened) { - can_wind = 1; - } else { - frame->local = qr_local_new (this); - if (frame->local == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_lk_stub (frame, qr_lk_helper, fd, - cmd, lock, xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - need_unwind = 1; - qr_fd_ctx->open_in_transit = 0; - goto unlock; - } - - list_add_tail (&stub->list, - &qr_fd_ctx->waiting_ops); - } - } - unlock: - UNLOCK (&qr_fd_ctx->lock); - } else { - can_wind = 1; - } - -out: - if (need_unwind) { - QR_STACK_UNWIND (lk, frame, op_ret, op_errno, NULL, NULL); - } else if (can_wind) { - STACK_WIND (frame, qr_lk_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->lk, fd, cmd, lock, xdata); - } else if (need_open) { - op_ret = qr_loc_fill (&loc, fd->inode, path); - if (op_ret == -1) { - qr_resume_pending_ops (qr_fd_ctx, -1, errno); - goto ret; - } - - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (qr_fd_ctx, -1, ENOMEM); - qr_loc_wipe (&loc); - goto ret; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, &loc, flags, fd, - NULL); + STACK_WIND (frame, qr_readdirp_cbk, + FIRST_CHILD (this), FIRST_CHILD (this)->fops->readdirp, + fd, size, offset, xdata); + return 0; +} - qr_loc_wipe (&loc); - } -ret: - return 0; -} +int +qr_readv_cached (call_frame_t *frame, qr_inode_t *qr_inode, size_t size, + off_t offset, uint32_t flags, dict_t *xdata) +{ + xlator_t *this = NULL; + qr_private_t *priv = NULL; + qr_inode_table_t *table = NULL; + int op_ret = -1; + struct iobuf *iobuf = NULL; + struct iobref *iobref = NULL; + struct iovec iov = {0, }; + struct iatt buf = {0, }; + + this = frame->this; + priv = this->private; + table = &priv->table; + + LOCK (&table->lock); + { + op_ret = -1; + + if (!qr_inode->data) + goto unlock; + if (offset >= qr_inode->size) + goto unlock; -int32_t -qr_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) -{ - QR_STACK_UNWIND (unlink, frame, op_ret, op_errno, preparent, - postparent, xdata); - return 0; -} + if (!__qr_cache_is_fresh (this, qr_inode)) + goto unlock; + op_ret = min (size, (qr_inode->size - offset)); -int32_t -qr_unlink_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, - dict_t *xdata) -{ - qr_local_t *local = NULL; - uint32_t open_count = 0; - qr_unlink_ctx_t *unlink_ctx = NULL, *tmp = NULL; + iobuf = iobuf_get2 (this->ctx->iobuf_pool, op_ret); + if (!iobuf) { + op_ret = -1; + goto unlock; + } - local = frame->local; + iobref = iobref_new (); + if (!iobref) { + op_ret = -1; + iobuf_unref (iobuf); + goto unlock; + } - LOCK (&local->lock); - { - open_count = --local->open_count; - } - UNLOCK (&local->lock); + iobref_add (iobref, iobuf); - if (open_count > 0) { - goto out; - } + memcpy (iobuf->ptr, qr_inode->data + offset, op_ret); - list_for_each_entry_safe (unlink_ctx, tmp, &local->list, list) { - fd_unref (unlink_ctx->fdctx->fd); - list_del_init (&unlink_ctx->list); - GF_FREE (unlink_ctx); - } + buf = qr_inode->buf; - if (local->op_ret < 0) { - /* unwind even if we couldn't open one fd */ - QR_STACK_UNWIND (unlink, frame, -1, local->op_errno, NULL, NULL, - NULL); - } else { - STACK_WIND (frame, qr_unlink_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); - } + /* bump LRU */ + __qr_inode_register (table, qr_inode); + } +unlock: + UNLOCK (&table->lock); -out: - return 0; -} + if (op_ret > 0) { + iov.iov_base = iobuf->ptr; + iov.iov_len = op_ret; + STACK_UNWIND_STRICT (readv, frame, op_ret, 0, &iov, 1, + &buf, iobref, xdata); + } -qr_unlink_ctx_t * -qr_unlink_ctx_new () -{ - qr_unlink_ctx_t *ctx = NULL; + if (iobuf) + iobuf_unref (iobuf); - ctx = GF_CALLOC (1, sizeof (*ctx), gf_qr_mt_qr_unlink_ctx_t); - if (ctx == NULL) { - goto out; - } + if (iobref) + iobref_unref (iobref); - INIT_LIST_HEAD (&ctx->list); -out: - return ctx; + return op_ret; } -int32_t -qr_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int xflag, - dict_t *xdata) +int +qr_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, uint32_t flags, dict_t *xdata) { - int32_t op_errno = -1, ret = -1, op_ret = -1; - uint64_t value = 0; - char need_open = 0; - qr_local_t *local = NULL; - qr_fd_ctx_t *fdctx = NULL; - call_frame_t *open_frame = NULL; - call_stub_t *stub = NULL; - qr_inode_t *qr_inode = NULL; - uint32_t open_count = 0; - qr_unlink_ctx_t *unlink_ctx = NULL; - - ret = inode_ctx_get (loc->inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(unsigned long)value; - } + qr_inode_t *qr_inode = NULL; - if (qr_inode == NULL) { - goto wind; - } - - local = qr_local_new (this); - GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, local, unwind, op_errno, - ENOMEM); - - frame->local = local; - - op_ret = 0; - - LOCK (&loc->inode->lock); - { - list_for_each_entry (fdctx, &qr_inode->fd_list, inode_list) { - need_open = 0; - - LOCK (&fdctx->lock); - { - if (qr_inode->stbuf.ia_nlink == 1) { - fdctx->disabled = 1; - } - - if ((fdctx->opened) - || (strcmp (loc->path, fdctx->path) != 0)) { - goto unlock; - } - - if (!(fdctx->opened - || fdctx->open_in_transit)) { - need_open = 1; - fdctx->open_in_transit = 1; - } - - if (!fdctx->opened) { - unlink_ctx = qr_unlink_ctx_new (); - if (unlink_ctx == NULL) { - op_ret = -1; - op_errno = ENOMEM; - fdctx->open_in_transit = 0; - goto unlock; - } - - stub = fop_unlink_stub (frame, - qr_unlink_helper, - loc, xflag, - xdata); - if (stub == NULL) { - op_ret = -1; - op_errno = ENOMEM; - fdctx->open_in_transit = 0; - GF_FREE (unlink_ctx); - goto unlock; - } - - list_add_tail (&stub->list, - &fdctx->waiting_ops); - - local->open_count++; - - unlink_ctx->need_open = need_open; - __fd_ref (fdctx->fd); - unlink_ctx->fdctx = fdctx; - list_add_tail (&unlink_ctx->list, - &local->list); - } - } - unlock: - UNLOCK (&fdctx->lock); + qr_inode = qr_inode_ctx_get (this, fd->inode); + if (!qr_inode) + goto wind; - if (op_ret == -1) { - break; - } - } - - open_count = local->open_count; - } - UNLOCK (&loc->inode->lock); - - if (op_ret == -1) { - goto unwind; - } - - if (open_count == 0) { - goto wind; - } - - /* no need to hold local->lock, since we are gaurded by condition - * local->open_count cannot be zero till we send open on - * all the required fds. qr_unlink_helper will not modify - * local->list till local->open_count becomes 0. - */ - list_for_each_entry (unlink_ctx, &local->list, list) { - if (!unlink_ctx->need_open) { - continue; - } - - fdctx = unlink_ctx->fdctx; - open_frame = create_frame (this, this->ctx->pool); - if (open_frame == NULL) { - qr_resume_pending_ops (fdctx, -1, ENOMEM); - continue; - } - - STACK_WIND (open_frame, qr_open_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->open, - loc, fdctx->flags, fdctx->fd, fdctx->xdata); - } - - return 0; - -unwind: - if (local && !list_empty (&local->list)) { - list_for_each_entry (unlink_ctx, &local->list, list) { - qr_resume_pending_ops (unlink_ctx->fdctx, -1, op_errno); - } - } else { - QR_STACK_UNWIND (unlink, frame, -1, op_errno, NULL, NULL, NULL); - } - - return 0; + if (qr_readv_cached (frame, qr_inode, size, offset, flags, xdata) != 0) + goto wind; + return 0; wind: - STACK_WIND (frame, qr_unlink_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->unlink, loc, xflag, xdata); - return 0; + STACK_WIND (frame, default_readv_cbk, + FIRST_CHILD (this), FIRST_CHILD (this)->fops->readv, + fd, size, offset, flags, xdata); + return 0; } -int32_t -qr_release (xlator_t *this, fd_t *fd) +int +qr_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags, + fd_t *fd, dict_t *xdata) { - qr_fd_ctx_t *qr_fd_ctx = NULL; - int32_t ret = 0; - uint64_t value = 0; - - GF_VALIDATE_OR_GOTO ("quick-read", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); + qr_inode_set_priority (this, fd->inode, loc->path); - ret = fd_ctx_del (fd, this, &value); - if (ret == 0) { - qr_fd_ctx = (qr_fd_ctx_t *)(long) value; - if (qr_fd_ctx) { - qr_fd_ctx_free (qr_fd_ctx); - } - } - -out: - return 0; + STACK_WIND (frame, default_open_cbk, + FIRST_CHILD (this), FIRST_CHILD (this)->fops->open, + loc, flags, fd, xdata); + return 0; } - -int32_t +int qr_forget (xlator_t *this, inode_t *inode) { qr_inode_t *qr_inode = NULL; - uint64_t value = 0; - int32_t ret = -1; - qr_private_t *priv = NULL; - GF_VALIDATE_OR_GOTO ("quick-read", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - GF_VALIDATE_OR_GOTO (this->name, inode, out); + qr_inode = qr_inode_ctx_get (this, inode); - priv = this->private; + if (!qr_inode) + return 0; - LOCK (&priv->table.lock); - { - ret = inode_ctx_del (inode, this, &value); - if (ret == 0) { - qr_inode = (qr_inode_t *)(long) value; - __qr_inode_free (qr_inode); - } - } - UNLOCK (&priv->table.lock); + qr_inode_prune (this, inode); -out: - return 0; + GF_FREE (qr_inode); + + return 0; } @@ -3427,32 +644,25 @@ int32_t qr_inodectx_dump (xlator_t *this, inode_t *inode) { qr_inode_t *qr_inode = NULL; - uint64_t value = 0; int32_t ret = -1; char key_prefix[GF_DUMP_MAX_BUF_LEN] = {0, }; char buf[256] = {0, }; - ret = inode_ctx_get (inode, this, &value); - if (ret != 0) { + qr_inode = qr_inode_ctx_get (this, inode); + if (!qr_inode) goto out; - } - - qr_inode = (qr_inode_t *)(long)value; - if (qr_inode == NULL) { - goto out; - } gf_proc_dump_build_key (key_prefix, "xlator.performance.quick-read", "inodectx"); gf_proc_dump_add_section (key_prefix); - gf_proc_dump_write ("entire-file-cached", "%s", qr_inode->xattr ? "yes" : "no"); + gf_proc_dump_write ("entire-file-cached", "%s", qr_inode->data ? "yes" : "no"); - if (qr_inode->tv.tv_sec) { - gf_time_fmt (buf, sizeof buf, qr_inode->tv.tv_sec, + if (qr_inode->last_refresh.tv_sec) { + gf_time_fmt (buf, sizeof buf, qr_inode->last_refresh.tv_sec, gf_timefmt_FT); snprintf (buf + strlen (buf), sizeof buf - strlen (buf), - ".%"GF_PRI_SUSECONDS, qr_inode->tv.tv_usec); + ".%"GF_PRI_SUSECONDS, qr_inode->last_refresh.tv_usec); gf_proc_dump_write ("last-cache-validation-time", "%s", buf); } @@ -3462,77 +672,6 @@ out: return ret; } -int32_t -qr_fdctx_dump (xlator_t *this, fd_t *fd) -{ - qr_fd_ctx_t *fdctx = NULL; - uint64_t value = 0; - int32_t ret = 0, i = 0; - char key[GF_DUMP_MAX_BUF_LEN] = {0, }; - char key_prefix[GF_DUMP_MAX_BUF_LEN] = {0, }; - call_stub_t *stub = NULL; - gf_boolean_t add_section = _gf_false; - - ret = fd_ctx_get (fd, this, &value); - if (ret != 0) { - goto out; - } - - fdctx = (qr_fd_ctx_t *)(long)value; - if (fdctx == NULL) { - goto out; - } - - gf_proc_dump_build_key (key_prefix, "xlator.performance.quick-read", - "fdctx"); - gf_proc_dump_add_section (key_prefix); - add_section = _gf_true; - - gf_proc_dump_write ("fd", "%p", fd); - - ret = TRY_LOCK (&fdctx->lock); - if (ret) - goto out; - { - gf_proc_dump_write ("path", "%s", fdctx->path); - - gf_proc_dump_write ("opened", "%s", fdctx->opened ? "yes" : "no"); - - gf_proc_dump_write ("open-in-progress", "%s", fdctx->open_in_transit ? - "yes" : "no"); - - gf_proc_dump_write ("caching disabled (for this fd)", "%s", - fdctx->disabled ? "yes" : "no"); - - gf_proc_dump_write ("flags", "%d", fdctx->flags); - - list_for_each_entry (stub, &fdctx->waiting_ops, list) { - gf_proc_dump_build_key (key, "", - "waiting-ops[%d].frame", i); - gf_proc_dump_write (key, "%"PRId64, - stub->frame->root->unique); - - gf_proc_dump_build_key (key, "", - "waiting-ops[%d].fop", i); - gf_proc_dump_write (key, "%s", gf_fop_list[stub->fop]); - - i++; - } - } - UNLOCK (&fdctx->lock); - - ret = 0; -out: - if (ret && fdctx) { - if (add_section == _gf_false) - gf_proc_dump_add_section (key_prefix); - - gf_proc_dump_write ("Unable to dump the state of fdctx", - "(Lock acquistion failed) fd: %p, gfid: %s", - fd, uuid_utoa (fd->inode->gfid)); - } - return ret; -} int qr_priv_dump (xlator_t *this) @@ -3553,14 +692,11 @@ qr_priv_dump (xlator_t *this) priv = this->private; conf = &priv->conf; - if (!conf) { - gf_log (this->name, GF_LOG_WARNING, "conf null in xlator"); + if (!conf) return -1; - } table = &priv->table; - gf_proc_dump_build_key (key_prefix, "xlator.performance.quick-read", "priv"); @@ -3570,13 +706,12 @@ qr_priv_dump (xlator_t *this) gf_proc_dump_write ("cache_timeout", "%d", conf->cache_timeout); if (!table) { - gf_log (this->name, GF_LOG_WARNING, "table is NULL"); goto out; } else { for (i = 0; i < conf->max_pri; i++) { list_for_each_entry (curr, &table->lru[i], lru) { file_count++; - total_size += curr->stbuf.ia_size; + total_size += curr->size; } } } @@ -3652,6 +787,7 @@ reconfigure (xlator_t *this, dict_t *options) qr_private_t *priv = NULL; qr_conf_t *conf = NULL; uint64_t cache_size_new = 0; + GF_VALIDATE_OR_GOTO ("quick-read", this, out); GF_VALIDATE_OR_GOTO (this->name, this->private, out); GF_VALIDATE_OR_GOTO (this->name, options, out); @@ -3845,14 +981,6 @@ init (xlator_t *this) INIT_LIST_HEAD (&priv->table.lru[i]); } - this->local_pool = mem_pool_new (qr_local_t, 64); - if (!this->local_pool) { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "failed to create local_t's memory pool"); - goto out; - } - ret = 0; this->private = priv; @@ -3924,31 +1052,18 @@ out: struct xlator_fops fops = { .lookup = qr_lookup, + .readdirp = qr_readdirp, .open = qr_open, .readv = qr_readv, - .writev = qr_writev, - .fstat = qr_fstat, - .fsetxattr = qr_fsetxattr, - .fgetxattr = qr_fgetxattr, - .flush = qr_flush, - .fentrylk = qr_fentrylk, - .finodelk = qr_finodelk, - .fsync = qr_fsync, - .ftruncate = qr_ftruncate, - .lk = qr_lk, - .fsetattr = qr_fsetattr, - .unlink = qr_unlink, }; struct xlator_cbks cbks = { .forget = qr_forget, - .release = qr_release, }; struct xlator_dumpops dumpops = { .priv = qr_priv_dump, .inodectx = qr_inodectx_dump, - .fdctx = qr_fdctx_dump }; struct volume_options options[] = { |