glusterfs/SOURCES/0120-glusterd-shd-Keep-a-ref-on-volinfo-until-attach-rpc-.patch
2021-09-09 17:41:22 +00:00

63 lines
2.3 KiB
Diff

From c429d3c63601e6ea15af76aa684c30bbeb746467 Mon Sep 17 00:00:00 2001
From: Mohammed Rafi KC <rkavunga@redhat.com>
Date: Tue, 23 Apr 2019 13:03:28 +0530
Subject: [PATCH 120/124] glusterd/shd: Keep a ref on volinfo until attach rpc
execute cbk
When svc attach execute for multiplexing a daemon, we have to keep
a ref on volinfo until it finish the execution. Because, if the attach
is an aysnc call, then a parallel volume delete can lead to free the
volinfo
> upstream patch : https://review.gluster.org/#/c/glusterfs/+/22606/
>Change-Id: Ibc02b89557baaed2f63db63d7fb1a7480444ae0d
>fixes: bz#1702185
>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Change-Id: Ibc02b89557baaed2f63db63d7fb1a7480444ae0d
BUG: 1702240
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/168616
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
xlators/mgmt/glusterd/src/glusterd-shd-svc.c | 3 +++
xlators/mgmt/glusterd/src/glusterd-svc-helper.c | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
index 19eca9f..a9eab42 100644
--- a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
+++ b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c
@@ -452,8 +452,11 @@ glusterd_shdsvc_start(glusterd_svc_t *svc, int flags)
}
if (shd->attached) {
+ glusterd_volinfo_ref(volinfo);
+ /* Unref will happen from glusterd_svc_attach_cbk */
ret = glusterd_attach_svc(svc, volinfo, flags);
if (ret) {
+ glusterd_volinfo_unref(volinfo);
gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLINFO_GET_FAIL,
"Failed to attach shd svc(volume=%s) to pid=%d. Starting"
"a new process",
diff --git a/xlators/mgmt/glusterd/src/glusterd-svc-helper.c b/xlators/mgmt/glusterd/src/glusterd-svc-helper.c
index 02945b1..f7be394 100644
--- a/xlators/mgmt/glusterd/src/glusterd-svc-helper.c
+++ b/xlators/mgmt/glusterd/src/glusterd-svc-helper.c
@@ -695,6 +695,10 @@ out:
if (flag) {
GF_FREE(flag);
}
+
+ if (volinfo)
+ glusterd_volinfo_unref(volinfo);
+
GF_ATOMIC_DEC(conf->blockers);
STACK_DESTROY(frame->root);
return 0;
--
1.8.3.1