From 3a98eaa0735fbe272525729e54497088d699005c Mon Sep 17 00:00:00 2001
From: Pranith Kumar K <pkarampu@redhat.com>
Date: Thu, 19 May 2016 16:24:09 +0530
Subject: [PATCH 162/167] cluster/afr: Do not inode_link in afr
Race is explained at
https://bugzilla.redhat.com/show_bug.cgi?id=1337405#c0
This patch also handles performing of self-heal with shd-pid.
Also performs the healing with this->itable's inode rather than
main itable.
>BUG: 1337405
>Change-Id: Id657a6623b71998b027b1dff6af5bbdf8cab09c9
>Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
>Reviewed-on: http://review.gluster.org/14422
>Smoke: Gluster Build System <jenkins@build.gluster.com>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
>Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
release-3.7: https://review.gluster.org/14456
BUG: 1331280
Change-Id: Ibd9c0e70b82fca3719bed0cfd1313ed6a3065da9
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/74772
---
.../bug-1134691-afr-lookup-metadata-heal.t | 3 +-
xlators/cluster/afr/src/afr-common.c | 6 +--
xlators/cluster/afr/src/afr-self-heal-metadata.c | 42 ++++++++++++++++++++
xlators/cluster/afr/src/afr-self-heal.h | 3 +
4 files changed, 48 insertions(+), 6 deletions(-)
diff --git a/tests/bugs/replicate/bug-1134691-afr-lookup-metadata-heal.t b/tests/bugs/replicate/bug-1134691-afr-lookup-metadata-heal.t
index f43c7ce..44c2ed2 100644
--- a/tests/bugs/replicate/bug-1134691-afr-lookup-metadata-heal.t
+++ b/tests/bugs/replicate/bug-1134691-afr-lookup-metadata-heal.t
@@ -8,8 +8,9 @@ cleanup;
TEST glusterd
TEST pidof glusterd
TEST $CLI volume create $V0 replica 3 $H0:$B0/brick{0,1,2}
-TEST $CLI volume start $V0
+TEST $CLI volume set $V0 performance.stat-prefetch off
TEST $CLI volume set $V0 cluster.self-heal-daemon off
+TEST $CLI volume start $V0
TEST glusterfs --volfile-id=/$V0 --volfile-server=$H0 $M0 --attribute-timeout=0 --entry-timeout=0
cd $M0
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index 6e84b81..3bed0c5 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -1962,13 +1962,9 @@ afr_lookup_sh_metadata_wrap (void *opaque)
if (first == -1)
goto out;
- inode = inode_link (local->inode, NULL, NULL, &replies[first].poststat);
- if(!inode)
+ if (afr_selfheal_metadata_by_stbuf (this, &replies[first].poststat))
goto out;
- afr_selfheal_metadata (frame, this, inode);
- inode_unref (inode);
-
afr_local_replies_wipe (local, this->private);
dict = dict_new ();
diff --git a/xlators/cluster/afr/src/afr-self-heal-metadata.c b/xlators/cluster/afr/src/afr-self-heal-metadata.c
index d6daadc..014d53b 100644
--- a/xlators/cluster/afr/src/afr-self-heal-metadata.c
+++ b/xlators/cluster/afr/src/afr-self-heal-metadata.c
@@ -435,3 +435,45 @@ unlock:
afr_replies_wipe (locked_replies, priv->child_count);
return ret;
}
+
+int
+afr_selfheal_metadata_by_stbuf (xlator_t *this, struct iatt *stbuf)
+{
+ inode_t *inode = NULL;
+ inode_t *link_inode = NULL;
+ call_frame_t *frame = NULL;
+ int ret = 0;
+
+ if (gf_uuid_is_null (stbuf->ia_gfid)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ inode = inode_new (this->itable);
+ if (!inode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ link_inode = inode_link (inode, NULL, NULL, stbuf);
+ if (!link_inode) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ frame = afr_frame_create (this);
+ if (!frame) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = afr_selfheal_metadata (frame, this, link_inode);
+out:
+ if (inode)
+ inode_unref (inode);
+ if (link_inode)
+ inode_unref (link_inode);
+ if (frame)
+ AFR_STACK_DESTROY (frame);
+ return ret;
+}
diff --git a/xlators/cluster/afr/src/afr-self-heal.h b/xlators/cluster/afr/src/afr-self-heal.h
index afc086c..f54eb9c 100644
--- a/xlators/cluster/afr/src/afr-self-heal.h
+++ b/xlators/cluster/afr/src/afr-self-heal.h
@@ -277,4 +277,7 @@ afr_locked_fill (call_frame_t *frame, xlator_t *this,
int
afr_choose_source_by_policy (afr_private_t *priv, unsigned char *sources,
afr_transaction_type type);
+
+int
+afr_selfheal_metadata_by_stbuf (xlator_t *this, struct iatt *stbuf);
#endif /* !_AFR_SELFHEAL_H */
--
1.7.1