diff options
Diffstat (limited to 'xlators/cluster/afr/src/afr-open.c')
| -rw-r--r-- | xlators/cluster/afr/src/afr-open.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr-open.c b/xlators/cluster/afr/src/afr-open.c index ae5851860..4b328e184 100644 --- a/xlators/cluster/afr/src/afr-open.c +++ b/xlators/cluster/afr/src/afr-open.c @@ -55,6 +55,72 @@ #include "afr-self-heal.h" #include "afr-self-heal-common.h" +int +afr_stale_child_up (afr_local_t *local, xlator_t *this) +{ + int i = 0; + afr_private_t *priv = NULL; + int up = -1; + + priv = this->private; + + if (!local->fresh_children) + local->fresh_children = afr_children_create (priv->child_count); + if (!local->fresh_children) + goto out; + + afr_inode_get_read_ctx (this, local->fd->inode, local->fresh_children); + if (priv->child_count == afr_get_children_count (local->fresh_children, + priv->child_count)) + goto out; + + for (i = 0; i < priv->child_count; i++) { + if (!local->child_up[i]) + continue; + if (afr_is_child_present (local->fresh_children, + priv->child_count, i)) + continue; + up = i; + break; + } +out: + return up; +} + +void +afr_perform_data_self_heal (call_frame_t *frame, xlator_t *this) +{ + afr_local_t *local = NULL; + afr_self_heal_t *sh = NULL; + afr_private_t *priv = NULL; + inode_t *inode = NULL; + int st_child = -1; + char reason[64] = {0}; + + local = frame->local; + sh = &local->self_heal; + priv = this->private; + inode = local->fd->inode; + + if (!IA_ISREG (inode->ia_type)) + goto out; + + st_child = afr_stale_child_up (local, this); + if (st_child < 0) + goto out; + + sh->do_data_self_heal = _gf_true; + sh->do_metadata_self_heal = _gf_true; + sh->do_gfid_self_heal = _gf_true; + sh->do_missing_entry_self_heal = _gf_true; + + snprintf (reason, sizeof (reason), "stale subvolume %d detected", + st_child); + afr_launch_self_heal (frame, this, inode, _gf_true, inode->ia_type, + reason, NULL, NULL); +out: + return; +} int afr_open_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, @@ -62,7 +128,11 @@ afr_open_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, struct iatt *postbuf) { afr_local_t * local = frame->local; + afr_private_t *priv = NULL; + priv = this->private; + if (afr_open_only_data_self_heal (priv->data_self_heal)) + afr_perform_data_self_heal (frame, this); AFR_STACK_UNWIND (open, frame, local->op_ret, local->op_errno, local->fd); return 0; @@ -80,7 +150,9 @@ afr_open_cbk (call_frame_t *frame, void *cookie, int ret = 0; int call_count = -1; int child_index = (long) cookie; + afr_private_t *priv = NULL; + priv = this->private; local = frame->local; LOCK (&frame->lock); @@ -133,6 +205,8 @@ unlock: this, this->fops->ftruncate, fd, 0); } else { + if (afr_open_only_data_self_heal (priv->data_self_heal)) + afr_perform_data_self_heal (frame, this); AFR_STACK_UNWIND (open, frame, local->op_ret, local->op_errno, local->fd); } @@ -153,6 +227,7 @@ afr_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, int32_t op_ret = -1; int32_t op_errno = 0; int32_t wind_flags = flags & (~O_TRUNC); + //We can't let truncation to happen outside transaction. VALIDATE_OR_GOTO (frame, out); VALIDATE_OR_GOTO (this, out); |