From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 29 Jul 2013 16:12:56 +0000 (-0400)
Subject: ext4: fix retry handling in ext4_ext_truncate()
X-Git-Tag: firefly_0821_release~6453^2~1119
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c7039e94cecff031efbdc8ccf7e316c1c6130971;p=firefly-linux-kernel-4.4.55.git

ext4: fix retry handling in ext4_ext_truncate()

commit 94eec0fc3520c759831763d866421b4d60b599b4 upstream.

We tested for ENOMEM instead of -ENOMEM.   Oops.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index fddf3d957004..dc1e03047226 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4389,7 +4389,7 @@ void ext4_ext_truncate(handle_t *handle, struct inode *inode)
 retry:
 	err = ext4_es_remove_extent(inode, last_block,
 				    EXT_MAX_BLOCKS - last_block);
-	if (err == ENOMEM) {
+	if (err == -ENOMEM) {
 		cond_resched();
 		congestion_wait(BLK_RW_ASYNC, HZ/50);
 		goto retry;