diff options
Diffstat (limited to 'xlators/cluster/afr/src/afr-open.c')
-rw-r--r-- | xlators/cluster/afr/src/afr-open.c | 196 |
1 files changed, 66 insertions, 130 deletions
diff --git a/xlators/cluster/afr/src/afr-open.c b/xlators/cluster/afr/src/afr-open.c index c0be197f212..643a5d692df 100644 --- a/xlators/cluster/afr/src/afr-open.c +++ b/xlators/cluster/afr/src/afr-open.c @@ -249,189 +249,126 @@ out: return 0; } -//NOTE: this function should be called with holding the lock on -//fd to which fd_ctx belongs -void -afr_get_resumable_calls (xlator_t *this, afr_fd_ctx_t *fd_ctx, - struct list_head *list) -{ - afr_fd_paused_call_t *paused_call = NULL; - afr_fd_paused_call_t *tmp = NULL; - afr_local_t *call_local = NULL; - afr_private_t *priv = NULL; - int i = 0; - gf_boolean_t call = _gf_false; - - priv = this->private; - list_for_each_entry_safe (paused_call, tmp, &fd_ctx->paused_calls, - call_list) { - call = _gf_true; - call_local = paused_call->frame->local; - for (i = 0; i < priv->child_count; i++) { - if (call_local->child_up[i] && - (fd_ctx->opened_on[i] == AFR_FD_OPENING)) - call = _gf_false; - } - - if (call) { - list_del_init (&paused_call->call_list); - list_add (&paused_call->call_list, list); - } - } -} - -void -afr_resume_calls (xlator_t *this, struct list_head *list) -{ - afr_fd_paused_call_t *paused_call = NULL; - afr_fd_paused_call_t *tmp = NULL; - afr_local_t *call_local = NULL; - - list_for_each_entry_safe (paused_call, tmp, list, call_list) { - list_del_init (&paused_call->call_list); - call_local = paused_call->frame->local; - call_local->fop_call_continue (paused_call->frame, this); - GF_FREE (paused_call); - } -} - int afr_openfd_fix_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) + int32_t op_ret, int32_t op_errno, fd_t *fd, + dict_t *xdata) { - afr_local_t *local = NULL; - afr_private_t *priv = NULL; - afr_fd_ctx_t *fd_ctx = NULL; - int call_count = 0; - int child_index = (long) cookie; - struct list_head paused_calls = {0}; - gf_boolean_t fop_paused = _gf_false; - fd_t *local_fd = NULL; + afr_local_t *local = NULL; + afr_private_t *priv = NULL; + afr_fd_ctx_t *fd_ctx = NULL; + int call_count = 0; + int child_index = (long) cookie; priv = this->private; local = frame->local; - fop_paused = local->fop_paused; if (op_ret >= 0) { - gf_log (this->name, GF_LOG_INFO, "fd for %s opened " + gf_log (this->name, GF_LOG_DEBUG, "fd for %s opened " "successfully on subvolume %s", local->loc.path, priv->children[child_index]->name); + } else { + gf_log (this->name, GF_LOG_ERROR, "Failed to open %s " + "on subvolume %s", local->loc.path, + priv->children[child_index]->name); } - local_fd = fd_ref (local->fd); - call_count = afr_frame_return (frame); - //Note: Do not access any thing using the frame outside call_count 0 - - //Note: No frame locking needed for this block of code - fd_ctx = afr_fd_ctx_get (local_fd, this); + fd_ctx = afr_fd_ctx_get (local->fd, this); if (!fd_ctx) { gf_log (this->name, GF_LOG_WARNING, - "failed to get fd context, %p", local_fd); + "failed to get fd context, %p", local->fd); goto out; } - LOCK (&local_fd->lock); + LOCK (&local->fd->lock); { if (op_ret >= 0) { fd_ctx->opened_on[child_index] = AFR_FD_OPENED; } else { fd_ctx->opened_on[child_index] = AFR_FD_NOT_OPENED; } - if (call_count == 0) { - INIT_LIST_HEAD (&paused_calls); - afr_get_resumable_calls (this, fd_ctx, &paused_calls); - } } - UNLOCK (&local_fd->lock); + UNLOCK (&local->fd->lock); out: - if (call_count == 0) { - afr_resume_calls (this, &paused_calls); - //If the fop is paused then resume_calls will continue the fop - if (fop_paused) - goto done; - - if (local->fop_call_continue) - local->fop_call_continue (frame, this); - else - AFR_STACK_DESTROY (frame); - } + call_count = afr_frame_return (frame); + if (call_count == 0) + AFR_STACK_DESTROY (frame); -done: - fd_unref (local_fd); return 0; } -int -afr_fix_open (call_frame_t *frame, xlator_t *this, afr_fd_ctx_t *fd_ctx, - int need_open_count, int *need_open) +void +afr_fix_open (xlator_t *this, fd_t *fd, size_t need_open_count, int *need_open) { - afr_local_t *local = NULL; - afr_private_t *priv = NULL; - int i = 0; - call_frame_t *open_frame = NULL; - afr_local_t *open_local = NULL; - int ret = -1; - ia_type_t ia_type = IA_INVAL; - int32_t op_errno = 0; - - GF_ASSERT (fd_ctx); - GF_ASSERT (need_open_count > 0); - GF_ASSERT (need_open); + afr_private_t *priv = NULL; + int i = 0; + call_frame_t *frame = NULL; + afr_local_t *local = NULL; + int ret = -1; + int32_t op_errno = 0; + afr_fd_ctx_t *fd_ctx = NULL; - local = frame->local; priv = this->private; - if (!local->fop_call_continue) { - open_frame = copy_frame (frame); - if (!open_frame) { - ret = -ENOMEM; - goto out; - } - AFR_LOCAL_ALLOC_OR_GOTO (open_frame->local, out); - open_local = open_frame->local; - ret = afr_local_init (open_local, priv, &op_errno); - if (ret < 0) - goto out; - loc_copy (&open_local->loc, &local->loc); - open_local->fd = fd_ref (local->fd); - } else { - ret = 0; - open_frame = frame; - open_local = local; + + if (!afr_is_fd_fixable (fd) || !need_open || !need_open_count) + goto out; + + fd_ctx = afr_fd_ctx_get (fd, this); + if (!fd_ctx) { + ret = -1; + goto out; } - open_local->call_count = need_open_count; + frame = create_frame (this, this->ctx->pool); + if (!frame) { + ret = -1; + goto out; + } - gf_log (this->name, GF_LOG_DEBUG, "need open count: %d", + AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); + local = frame->local; + ret = afr_local_init (local, priv, &op_errno); + if (ret < 0) + goto out; + + local->loc.inode = inode_ref (fd->inode); + ret = loc_path (&local->loc, NULL); + if (ret < 0) + goto out; + + local->fd = fd_ref (fd); + local->call_count = need_open_count; + + gf_log (this->name, GF_LOG_DEBUG, "need open count: %zd", need_open_count); - ia_type = open_local->fd->inode->ia_type; - GF_ASSERT (ia_type != IA_INVAL); for (i = 0; i < priv->child_count; i++) { if (!need_open[i]) continue; - if (IA_IFDIR == ia_type) { + + if (IA_IFDIR == fd->inode->ia_type) { gf_log (this->name, GF_LOG_DEBUG, "opening fd for dir %s on subvolume %s", local->loc.path, priv->children[i]->name); - STACK_WIND_COOKIE (open_frame, afr_openfd_fix_open_cbk, + STACK_WIND_COOKIE (frame, afr_openfd_fix_open_cbk, (void*) (long) i, priv->children[i], priv->children[i]->fops->opendir, - &open_local->loc, open_local->fd, + &local->loc, local->fd, NULL); } else { gf_log (this->name, GF_LOG_DEBUG, "opening fd for file %s on subvolume %s", local->loc.path, priv->children[i]->name); - STACK_WIND_COOKIE (open_frame, afr_openfd_fix_open_cbk, + STACK_WIND_COOKIE (frame, afr_openfd_fix_open_cbk, (void *)(long) i, priv->children[i], priv->children[i]->fops->open, - &open_local->loc, + &local->loc, fd_ctx->flags & (~O_TRUNC), - open_local->fd, NULL); + local->fd, NULL); } } @@ -439,8 +376,7 @@ afr_fix_open (call_frame_t *frame, xlator_t *this, afr_fd_ctx_t *fd_ctx, ret = 0; out: if (op_errno) - ret = -op_errno; - if (ret && open_frame) - AFR_STACK_DESTROY (open_frame); - return ret; + ret = -1; //For handling ALLOC_OR_GOTO + if (ret && frame) + AFR_STACK_DESTROY (frame); } |