3.16-stable review patch. If anyone has any objections, please let me know.
------------------
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 {
/*
--
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