diff options
Diffstat (limited to 'xlators/cluster')
| -rw-r--r-- | xlators/cluster/afr/src/afr-common.c | 1 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr-dir-read.c | 55 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr.c | 8 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr.h | 2 |
4 files changed, 41 insertions, 25 deletions
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c index 2e339986621..35201085444 100644 --- a/xlators/cluster/afr/src/afr-common.c +++ b/xlators/cluster/afr/src/afr-common.c @@ -2462,6 +2462,7 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd) pthread_mutex_init (&fd_ctx->delay_lock, NULL); INIT_LIST_HEAD (&fd_ctx->paused_calls); INIT_LIST_HEAD (&fd_ctx->entries); + fd_ctx->call_child = -1; ret = __fd_ctx_set (fd, this, (uint64_t)(long) fd_ctx); if (ret) diff --git a/xlators/cluster/afr/src/afr-dir-read.c b/xlators/cluster/afr/src/afr-dir-read.c index ce91ffba729..c201d45fd68 100644 --- a/xlators/cluster/afr/src/afr-dir-read.c +++ b/xlators/cluster/afr/src/afr-dir-read.c @@ -497,6 +497,9 @@ afr_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, local = frame->local; + if ((priv->readdir_failover == _gf_false) && (op_ret < 0)) + goto out; + read_child = (long) cookie; last_index = &local->cont.readdir.last_index; fresh_children = local->fresh_children; @@ -593,15 +596,14 @@ int32_t afr_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t offset, int whichop, dict_t *dict) { - afr_private_t * priv = NULL; - xlator_t ** children = NULL; - int call_child = 0; - afr_local_t *local = NULL; - uint64_t ctx = 0; - afr_fd_ctx_t *fd_ctx = NULL; - int ret = -1; - int32_t op_errno = 0; - uint64_t read_child = 0; + afr_private_t *priv = NULL; + xlator_t **children = NULL; + int call_child = 0; + afr_local_t *local = NULL; + afr_fd_ctx_t *fd_ctx = NULL; + int ret = -1; + int32_t op_errno = 0; + uint64_t read_child = 0; VALIDATE_OR_GOTO (frame, out); VALIDATE_OR_GOTO (this, out); @@ -626,29 +628,33 @@ afr_do_readdir (call_frame_t *frame, xlator_t *this, read_child = afr_inode_get_read_ctx (this, fd->inode, local->fresh_children); ret = afr_get_call_child (this, local->child_up, read_child, - local->fresh_children, - &call_child, - &local->cont.readdir.last_index); + local->fresh_children, + &call_child, + &local->cont.readdir.last_index); if (ret < 0) { op_errno = -ret; goto out; } + fd_ctx = afr_fd_ctx_get (fd, this); + if (!fd_ctx) { + op_errno = EBADF; + goto out; + } + + if ((offset == 0) || (fd_ctx->call_child == -1)) { + fd_ctx->call_child = call_child; + } else if ((priv->readdir_failover == _gf_false) && + (call_child != fd_ctx->call_child)) { + op_errno = EBADF; + goto out; + } + local->fd = fd_ref (fd); local->cont.readdir.size = size; local->cont.readdir.dict = (dict)? dict_ref (dict) : NULL; if (priv->strict_readdir) { - ret = fd_ctx_get (fd, this, &ctx); - if (ret < 0) { - gf_log (this->name, GF_LOG_INFO, - "could not get fd ctx for fd=%p", fd); - op_errno = -ret; - goto out; - } - - fd_ctx = (afr_fd_ctx_t *)(long) ctx; - if (fd_ctx->last_tried != call_child) { gf_log (this->name, GF_LOG_TRACE, "first up child has changed from %d to %d, " @@ -675,10 +681,9 @@ afr_do_readdir (call_frame_t *frame, xlator_t *this, children[call_child]->fops->readdirp, fd, size, offset, dict); - ret = 0; + return 0; out: - if (ret < 0) - AFR_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL); + AFR_STACK_UNWIND (readdir, frame, -1, op_errno, NULL, NULL); return 0; } diff --git a/xlators/cluster/afr/src/afr.c b/xlators/cluster/afr/src/afr.c index c120ba57b5f..cdc7a609b4d 100644 --- a/xlators/cluster/afr/src/afr.c +++ b/xlators/cluster/afr/src/afr.c @@ -189,6 +189,8 @@ reconfigure (xlator_t *this, dict_t *options) GF_OPTION_RECONF (AFR_SH_READDIR_SIZE_KEY, priv->sh_readdir_size, options, size, out); /* Reset this so we re-discover in case the topology changed. */ + GF_OPTION_RECONF ("readdir-failover", priv->readdir_failover, options, + bool, out); priv->did_discovery = _gf_false; ret = 0; @@ -332,6 +334,7 @@ init (xlator_t *this) fix_quorum_options(this,priv,qtype); GF_OPTION_INIT ("post-op-delay-secs", priv->post_op_delay_secs, uint32, out); + GF_OPTION_INIT ("readdir-failover", priv->readdir_failover, bool, out); priv->wait_count = 1; @@ -758,5 +761,10 @@ struct volume_options options[] = { .max = 131072, .default_value = "1KB", }, + { .key = {"readdir-failover"}, + .type = GF_OPTION_TYPE_BOOL, + .description = "readdir(p) will not failover if this option is off", + .default_value = "on", + }, { .key = {NULL} }, }; diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h index 48dfbf37eb8..7de8d82436c 100644 --- a/xlators/cluster/afr/src/afr.h +++ b/xlators/cluster/afr/src/afr.h @@ -160,6 +160,7 @@ typedef struct _afr_private { afr_self_heald_t shd; gf_boolean_t choose_local; gf_boolean_t did_discovery; + gf_boolean_t readdir_failover; uint64_t sh_readdir_size; } afr_private_t; @@ -710,6 +711,7 @@ typedef struct { pthread_mutex_t delay_lock; gf_timer_t *delay_timer; call_frame_t *delay_frame; + int call_child; } afr_fd_ctx_t; |