From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 6 Feb 2016 19:59:38 +0000 (-0500)
Subject: orangefs: avoid freeing a slot twice in wait_for_direct_io()
X-Git-Tag: v4.6-rc1~2^2~63
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e17be9fd4d51302c41b17e22f9ec96751f47951b;p=linux-block.git

orangefs: avoid freeing a slot twice in wait_for_direct_io()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
---

diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index d865b58fb1fc..40b38057b826 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -210,6 +210,7 @@ populate_shared_memory:
 	 */
 	if (ret == -EAGAIN && op_state_purged(new_op)) {
 		orangefs_bufmap_put(bufmap, buffer_index);
+		buffer_index = -1;
 		gossip_debug(GOSSIP_FILE_DEBUG,
 			     "%s:going to repopulate_shared_memory.\n",
 			     __func__);