From d54f087a2484695ff7ac214d39f2750fddcef2d5 Mon Sep 17 00:00:00 2001
From: HuangShujun <549702281@qq.com>
Date: Thu, 5 Dec 2019 10:07:10 +0200
Subject: [PATCH 387/449] To fix readdir-ahead memory leak

Glusterfs client process has memory leak if create several files under
one folder, and delete the folder. According to statedump, the ref
counts of readdir-ahead is bigger than zero in the inode table.

Readdir-ahead get parent inode by inode_parent in rda_mark_inode_dirty
when each rda_writev_cbk,the inode ref count of parent folder will be
increased in inode_parent, but readdir-ahead do not unref it later.

The correction is unref the parent inode at the end of
rda_mark_inode_dirty.

Upstream patch:
> Upstream patch link: https://review.gluster.org/c/glusterfs/+/23815
> Fixes: bz#1779055
> Signed-off-by: HuangShujun <549702281@qq.com>
> Change-Id: Iee68ab1089cbc2fbc4185b93720fb1f66ee89524

BUG: 1781550
Change-Id: Iee68ab1089cbc2fbc4185b93720fb1f66ee89524
Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/202312
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 xlators/performance/readdir-ahead/src/readdir-ahead.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xlators/performance/readdir-ahead/src/readdir-ahead.c b/xlators/performance/readdir-ahead/src/readdir-ahead.c
index 7fd4f8d..933941d 100644
--- a/xlators/performance/readdir-ahead/src/readdir-ahead.c
+++ b/xlators/performance/readdir-ahead/src/readdir-ahead.c
@@ -254,6 +254,7 @@ rda_mark_inode_dirty(xlator_t *this, inode_t *inode)
             }
         }
         UNLOCK(&parent->lock);
+        inode_unref(parent);
     }
 
     return;
-- 
1.8.3.1