This is a note to let you know that I've just added the patch titled
NFS: Do cleanup before resetting pageio read/write to mds
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfs-do-cleanup-before-resetting-pageio-read-write-to-mds.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 6f29b9bba7b08c6b1d6f2cc4cf750b342fc1946c Mon Sep 17 00:00:00 2001
From: Kinglong Mee <[email protected]>
Date: Sun, 20 Sep 2015 23:03:28 +0800
Subject: NFS: Do cleanup before resetting pageio read/write to mds
From: Kinglong Mee <[email protected]>
commit 6f29b9bba7b08c6b1d6f2cc4cf750b342fc1946c upstream.
There is a reference leak of layout segment after resetting
pageio read/write to mds.
Signed-off-by: Kinglong Mee <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfs/read.c | 3 +++
fs/nfs/write.c | 3 +++
2 files changed, 6 insertions(+)
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -72,6 +72,9 @@ void nfs_pageio_reset_read_mds(struct nf
{
struct nfs_pgio_mirror *mirror;
+ if (pgio->pg_ops && pgio->pg_ops->pg_cleanup)
+ pgio->pg_ops->pg_cleanup(pgio);
+
pgio->pg_ops = &nfs_pgio_rw_ops;
/* read path should never have more than one mirror */
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1331,6 +1331,9 @@ void nfs_pageio_reset_write_mds(struct n
{
struct nfs_pgio_mirror *mirror;
+ if (pgio->pg_ops && pgio->pg_ops->pg_cleanup)
+ pgio->pg_ops->pg_cleanup(pgio);
+
pgio->pg_ops = &nfs_pgio_rw_ops;
nfs_pageio_stop_mirroring(pgio);
Patches currently in stable-queue which might be from [email protected] are
queue-4.1/nfs-do-cleanup-before-resetting-pageio-read-write-to-mds.patch
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