diff options
| author | Ravishankar N <ravishankar@redhat.com> | 2013-10-15 22:37:44 +0530 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-10-16 19:30:14 -0700 |
| commit | dfe698bae7f4bbc5f506d29473888239a82156fc (patch) | |
| tree | a15a53b0e0d9d7bc2535e7bee4051f0471d2123e /xlators/cluster/afr | |
| parent | 656db3a8e0601ba0a6af303b971111fbbed29906 (diff) | |
afr: check for split-brain before proceeding with fops
Bail out of fops if split brain has been detected during lookup
Change-Id: Id387dbb1a25eec4a121dedceadc6069bdea24b5d
BUG: 1010834
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/5988
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/cluster/afr')
| -rw-r--r-- | xlators/cluster/afr/src/afr-inode-read.c | 24 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr.h | 21 |
2 files changed, 33 insertions, 12 deletions
diff --git a/xlators/cluster/afr/src/afr-inode-read.c b/xlators/cluster/afr/src/afr-inode-read.c index 00dd22214cb..e06e3b2f24d 100644 --- a/xlators/cluster/afr/src/afr-inode-read.c +++ b/xlators/cluster/afr/src/afr-inode-read.c @@ -117,6 +117,8 @@ afr_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask, children = priv->children; + AFR_SBRAIN_CHECK_LOC (loc, out); + AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; @@ -232,6 +234,8 @@ afr_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) children = priv->children; + AFR_SBRAIN_CHECK_LOC (loc, out); + AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; @@ -348,10 +352,7 @@ afr_fstat (call_frame_t *frame, xlator_t *this, VALIDATE_OR_GOTO (fd->inode, out); - if (afr_is_split_brain (this, fd->inode)) { - op_errno = EIO; - goto out; - } + AFR_SBRAIN_CHECK_FD (fd, out); AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; @@ -472,6 +473,8 @@ afr_readlink (call_frame_t *frame, xlator_t *this, children = priv->children; + AFR_SBRAIN_CHECK_LOC (loc, out); + AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; @@ -1472,6 +1475,8 @@ afr_getxattr (call_frame_t *frame, xlator_t *this, children = priv->children; + AFR_SBRAIN_CHECK_LOC (loc, out); + AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; @@ -1727,10 +1732,8 @@ afr_fgetxattr (call_frame_t *frame, xlator_t *this, children = priv->children; - if (afr_is_split_brain (this, fd->inode)) { - op_errno = EIO; - goto out; - } + AFR_SBRAIN_CHECK_FD (fd, out); + AFR_LOCAL_ALLOC_OR_GOTO (local, out); frame->local = local; @@ -1886,10 +1889,7 @@ afr_readv (call_frame_t *frame, xlator_t *this, priv = this->private; children = priv->children; - if (afr_is_split_brain (this, fd->inode)) { - op_errno = EIO; - goto out; - } + AFR_SBRAIN_CHECK_FD (fd, out); AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out); local = frame->local; diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h index fcd46c6edca..12dce541cf3 100644 --- a/xlators/cluster/afr/src/afr.h +++ b/xlators/cluster/afr/src/afr.h @@ -1162,6 +1162,27 @@ afr_xattr_array_destroy (dict_t **xattr, unsigned int child_count); } while (0); +#define AFR_SBRAIN_MSG "Failed on %s as split-brain is seen. Returning EIO." + +#define AFR_SBRAIN_CHECK_FD(fd, label) do { \ + if (fd->inode && afr_is_split_brain (this, fd->inode)) { \ + op_errno = EIO; \ + gf_log (this->name, GF_LOG_WARNING, \ + AFR_SBRAIN_MSG ,uuid_utoa (fd->inode->gfid)); \ + goto label; \ + } \ +} while (0) + +#define AFR_SBRAIN_CHECK_LOC(loc, label) do { \ + if (loc->inode && afr_is_split_brain (this, loc->inode)) { \ + op_errno = EIO; \ + loc_path (loc, NULL); \ + gf_log (this->name, GF_LOG_WARNING, \ + AFR_SBRAIN_MSG , loc->path); \ + goto label; \ + } \ +} while (0) + int afr_fd_report_unstable_write (xlator_t *this, fd_t *fd); |