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 4.2-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-4.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 6f29b9bba7b08c6b1d6f2cc4cf750b342fc1946c Mon Sep 17 00:00:00 2001 From: Kinglong Mee <kinglongmee@xxxxxxxxx> Date: Sun, 20 Sep 2015 23:03:28 +0800 Subject: NFS: Do cleanup before resetting pageio read/write to mds From: Kinglong Mee <kinglongmee@xxxxxxxxx> commit 6f29b9bba7b08c6b1d6f2cc4cf750b342fc1946c upstream. There is a reference leak of layout segment after resetting pageio read/write to mds. Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx> Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -1351,6 +1351,9 @@ 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 kinglongmee@xxxxxxxxx are queue-4.2/nfs-do-cleanup-before-resetting-pageio-read-write-to-mds.patch queue-4.2/nfsv4-recovery-of-recalled-read-delegations-is-broken.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html