diff options
Diffstat (limited to 'xlators/cluster/afr/src')
| -rw-r--r-- | xlators/cluster/afr/src/afr-open.c | 183 |
1 files changed, 176 insertions, 7 deletions
diff --git a/xlators/cluster/afr/src/afr-open.c b/xlators/cluster/afr/src/afr-open.c index ee8830a9ae9..44ba22ee77a 100644 --- a/xlators/cluster/afr/src/afr-open.c +++ b/xlators/cluster/afr/src/afr-open.c @@ -359,6 +359,51 @@ out: } +static int +afr_prepare_loc (call_frame_t *frame, fd_t *fd) +{ + afr_local_t *local = NULL; + char *name = NULL; + char *path = NULL; + int ret = 0; + + if (!fd) + return -1; + + local = frame->local; + ret = inode_path (fd->inode, NULL, (char **)&path); + if (ret == -1) + return -1; + + if (local->loc.path) { + if (strcmp (path, local->loc.path)) + gf_log (frame->this->name, GF_LOG_DEBUG, + "overwriting old loc->path %s with %s", + local->loc.path, path); + GF_FREE ((char *)local->loc.path); + } + local->loc.path = path; + + name = strrchr (local->loc.path, '/'); + if (name) + name++; + local->loc.name = name; + + if (local->loc.inode) { + inode_unref (local->loc.inode); + } + local->loc.inode = inode_ref (fd->inode); + + if (local->loc.parent) { + inode_unref (local->loc.parent); + } + + local->loc.parent = inode_parent (local->loc.inode, 0, NULL); + + return 0; +} + + int afr_openfd_sh (call_frame_t *frame, xlator_t *this) { @@ -369,10 +414,7 @@ afr_openfd_sh (call_frame_t *frame, xlator_t *this) local = frame->local; sh = &local->self_heal; - inode_path (local->fd->inode, NULL, (char **)&local->loc.path); - local->loc.name = strrchr (local->loc.path, '/'); - local->loc.inode = inode_ref (local->fd->inode); - local->loc.parent = inode_parent (local->fd->inode, 0, NULL); + afr_prepare_loc (frame, local->fd); /* forcibly trigger missing-entries self-heal */ @@ -440,8 +482,9 @@ out: } + int -afr_openfd_flush (call_frame_t *frame, xlator_t *this, fd_t *fd) +afr_openfd_xaction (call_frame_t *frame, xlator_t *this, fd_t *fd) { afr_local_t * local = NULL; @@ -453,8 +496,6 @@ afr_openfd_flush (call_frame_t *frame, xlator_t *this, fd_t *fd) local->op = GF_FOP_FLUSH; - local->fd = fd_ref (fd); - local->transaction.fop = afr_openfd_sh; local->transaction.done = afr_openfd_flush_done; @@ -471,3 +512,131 @@ out: return 0; } + + +int +afr_openfd_xaction_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, fd_t *fd) +{ + afr_internal_lock_t *int_lock = NULL; + afr_local_t *local = NULL; + afr_private_t *priv = NULL; + + int ret = 0; + + uint64_t ctx = 0; + afr_fd_ctx_t *fd_ctx = NULL; + + int call_count = 0; + int child_index = (long) cookie; + + priv = this->private; + local = frame->local; + int_lock = &local->internal_lock; + + LOCK (&frame->lock); + { + if (op_ret >= 0) { + ret = fd_ctx_get (fd, this, &ctx); + + if (ret < 0) { + goto out; + } + + fd_ctx = (afr_fd_ctx_t *)(long) ctx; + + fd_ctx->opened_on[child_index] = 1; + + gf_log (this->name, GF_LOG_TRACE, + "fd for %s opened successfully on subvolume %s", + local->loc.path, priv->children[child_index]->name); + } + } +out: + UNLOCK (&frame->lock); + + call_count = afr_frame_return (frame); + + if (call_count == 0) { + afr_openfd_xaction (frame, this, local->fd); + } + + return 0; +} + + +int +afr_openfd_flush (call_frame_t *frame, xlator_t *this, fd_t *fd) +{ + afr_local_t *local = NULL; + afr_private_t *priv = NULL; + + uint64_t ctx; + afr_fd_ctx_t *fd_ctx; + + int no_open = 0; + int ret = 0; + int i; + int call_count = 0; + + priv = this->private; + local = frame->local; + + /* + * Some subvolumes might have come up on which we never + * opened this fd in the first place. Re-open fd's on those + * subvolumes now. + */ + + local->fd = fd_ref (fd); + + ret = fd_ctx_get (fd, this, &ctx); + + if (ret < 0) { + no_open = 1; + goto out; + } + + fd_ctx = (afr_fd_ctx_t *)(long) ctx; + + LOCK (&local->fd->lock); + { + call_count = __unopened_count (priv->child_count, + fd_ctx->opened_on, + local->child_up); + } + UNLOCK (&local->fd->lock); + + if (call_count == 0) { + no_open = 1; + goto out; + } + + afr_prepare_loc (frame, fd); + + local->call_count = call_count; + + for (i = 0; i < priv->child_count; i++) { + if (!fd_ctx->opened_on[i] && local->child_up[i]) { + gf_log (this->name, GF_LOG_TRACE, + "opening fd for %s on subvolume %s", + local->loc.path, priv->children[i]->name); + + STACK_WIND_COOKIE (frame, afr_openfd_xaction_open_cbk, + (void *)(long) i, + priv->children[i], + priv->children[i]->fops->open, + &local->loc, fd_ctx->flags, fd, + fd_ctx->wbflags); + + if (!--call_count) + break; + } + } + +out: + if (no_open) + afr_openfd_xaction (frame, this, fd); + + return 0; +} |