linux-kernel - [ PATCH ] Memory leak fix for bug 57101.

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Message-ID: <D2393EB95A9993478029A6FE6A290A9F15F504C9@szxeml510-mbx.china.huawei.com>
Date:	Thu, 25 Apr 2013 10:05:44 +0000
From:	Anurup m <anurup.m@...wei.com>
To:	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>
CC:	shyju pv <shyju.pv@...wei.com>,
	Sanil kumar <sanil.kumar@...wei.com>,
	Nataraj m <nataraj.m@...wei.com>
Subject: [ PATCH ] Memory leak fix for bug 57101.  

Hi All,

There is a kernel memory leak observed when the proc file /proc/fs/fscache/stats is read.
The reason is that in fscache_stats_open, single_open is called and respective release function is not called during release.
Hence fix with correct release function - single_release. The patch is as below

diff -uprN -X linux-3.9-rc8-vanilla/Documentation/dontdiff linux-3.9-rc8-vanilla/fs/fscache/stats.c linux-3.9-rc8.mod/fs/fscache/stats.c 
--- linux-3.9-rc8-vanilla/fs/fscache/stats.c        2013-04-22 03:08:45.000000000 +0530 
+++ linux-3.9-rc8.mod/fs/fscache/stats.c        2013-04-24 23:03:31.531296160 +0530 
@@ -287,5 +287,5 @@ const struct file_operations fscache_sta 
         .open                = fscache_stats_open, 
         .read                = seq_read, 
         .llseek                = seq_lseek, 
-        .release        = seq_release, 
+        .release        = single_release, 
 };

Regards,
Anurup M
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