[PATCH] f2fs: fix wrong sum_page pointer in f2fs_gc

From: Jaegeuk Kim
Date: Wed Oct 12 2016 - 19:23:23 EST


This patch fixes using a wrong pointer for sum_page in f2fs_gc.

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/gc.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e48142f..9c18917 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -854,16 +854,16 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,

for (segno = start_segno; segno < end_segno; segno++) {

- if (get_valid_blocks(sbi, segno, 1) == 0 ||
- unlikely(f2fs_cp_error(sbi)))
- goto next;
-
/* find segment summary of victim */
sum_page = find_get_page(META_MAPPING(sbi),
GET_SUM_BLOCK(sbi, segno));
- f2fs_bug_on(sbi, !PageUptodate(sum_page));
f2fs_put_page(sum_page, 0);

+ if (get_valid_blocks(sbi, segno, 1) == 0 ||
+ !PageUptodate(sum_page) ||
+ unlikely(f2fs_cp_error(sbi)))
+ goto next;
+
sum = page_address(sum_page);
f2fs_bug_on(sbi, type != GET_SUM_TYPE((&sum->footer)));

--
2.8.3