commit 80c545055dc7c1f7f487176fe0aac17896a4b7af
author Jaegeuk Kim <jaegeuk@kernel.org> Thu Aug 20 08:51:56 2015 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> Mon Aug 24 09:37:21 2015 -0700
tree b8c4ffbb9aa10da0c26ab5f7caf264e68803b685
parent dac2ddefe62841efc0b6cdcb0bbf3e3594aa01bf

f2fs: use __GFP_NOFAIL to avoid infinite loop

__GFP_NOFAIL can avoid retrying the whole path of kmem_cache_alloc and
bio_alloc.
And, it also fixes the use cases of GFP_ATOMIC correctly.

Suggested-by: Chao Yu <chao2.yu@samsung.com>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/segment.c

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 6273e2c..78e6d0696 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1753,7 +1753,7 @@
 static struct sit_entry_set *grab_sit_entry_set(void)
 {
 	struct sit_entry_set *ses =
-			f2fs_kmem_cache_alloc(sit_entry_set_slab, GFP_ATOMIC);
+			f2fs_kmem_cache_alloc(sit_entry_set_slab, GFP_NOFS);
 
 	ses->entry_cnt = 0;
 	INIT_LIST_HEAD(&ses->set_list);