This is a note to let you know that I've just added the patch titled
nfs: fix error handling in lock_and_join_requests
to the 3.16-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-fix-error-handling-in-lock_and_join_requests.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From trond.mykleb...@primarydata.com Thu Oct 2 16:49:47 2014
From: Trond Myklebust <trond.mykleb...@primarydata.com>
Date: Mon, 15 Sep 2014 14:14:42 -0400
Subject: nfs: fix error handling in lock_and_join_requests
To: stable@vger.kernel.org
Cc: Weston Andros Adamson <d...@primarydata.com>, linux-...@vger.kernel.org
Message-ID: <1410804885-17228-12-git-send-email-trond.mykleb...@primarydata.com>
From: Weston Andros Adamson <d...@primarydata.com>
commit 94970014c46223cbcdfbfc67b89596a412f9e3dd upstream.
This fixes handling of errors from nfs_page_group_lock in
nfs_lock_and_join_requests. It now releases the inode lock and the
reference to the head request.
Reported-by: Peng Tao <tao.p...@primarydata.com>
Signed-off-by: Weston Andros Adamson <d...@primarydata.com>
Reviewed-by: Peng Tao <tao.p...@primarydata.com>
Signed-off-by: Trond Myklebust <trond.mykleb...@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/nfs/write.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -455,8 +455,11 @@ try_again:
/* lock each request in the page group */
ret = nfs_page_group_lock(head, true);
- if (ret < 0)
+ if (ret < 0) {
+ spin_unlock(&inode->i_lock);
+ nfs_release_request(head);
return ERR_PTR(ret);
+ }
subreq = head;
do {
/*
Patches currently in stable-queue which might be from
trond.mykleb...@primarydata.com are
queue-3.16/nfs-move-nfs_pgio_data-and-remove-nfs_rw_header.patch
queue-3.16/nfs-use-blocking-page_group_lock-in-add_request.patch
queue-3.16/nfs-remove-pgio_header-refcount-related-cleanup.patch
queue-3.16/pnfs-add-pnfs_put_lseg_async.patch
queue-3.16/nfs-can_coalesce_requests-must-enforce-contiguity.patch
queue-3.16/nfs-disallow-duplicate-pages-in-pgio-page-vectors.patch
queue-3.16/nfs-fix-error-handling-in-lock_and_join_requests.patch
queue-3.16/nfs-change-nfs_page_group_lock-argument.patch
queue-3.16/nfsv4-nfs4_state_manager-vs.-nfs_server_remove_lists.patch
queue-3.16/nfsv4-fix-another-bug-in-the-close-open_downgrade-code.patch
queue-3.16/nfs-check-wait_on_bit_lock-err-in-page_group_lock.patch
queue-3.16/nfs-don-t-sleep-with-inode-lock-in-lock_and_join_requests.patch
queue-3.16/nfs-rename-members-of-nfs_pgio_data.patch
queue-3.16/nfs-fix-nonblocking-calls-to-nfs_page_group_lock.patch
queue-3.16/nfs-merge-nfs_pgio_data-into-_header.patch
queue-3.16/nfs-clear_request_commit-while-holding-i_lock.patch
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