All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH] f2fs: add a segment and section num check in sanity_check_raw_super
@ 2015-12-26  2:46 Yunlei He
  2015-12-26  2:55 ` He YunLei
  0 siblings, 1 reply; 6+ messages in thread
From: Yunlei He @ 2015-12-26  2:46 UTC (permalink / raw)
  To: linux-f2fs-devel, jaegeuk, chao2.yu

This patch add a mismatch check between segment and section in
sanity_check_raw_super.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
---
 fs/f2fs/super.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c3070c1..b51a690 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1036,6 +1036,17 @@ static int sanity_check_raw_super(struct super_block *sb,
 		return 1;
 	}
 
+	/* check seg # corresponding to sec # */
+	if (le32_to_cpu(raw_super->segment_count)
+			* le32_to_cpu(raw_super->segs_per_sec)
+				!= le32_to_cpu(raw_super->section_count)) {
+		f2fs_msg(sb, KERN_INFO,
+			"Mismatch seg num (%u) and sec num (%u) \n",
+			le32_to_cpu(raw_super->segment_count),
+			le32_to_cpu(raw_super->section_count));
+		return 1;
+	}
+
 	/* Currently, support 512/1024/2048/4096 bytes sector size */
 	if (le32_to_cpu(raw_super->log_sectorsize) >
 				F2FS_MAX_LOG_SECTOR_SIZE ||
-- 
1.9.1


------------------------------------------------------------------------------

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2015-12-31  1:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-12-26  2:46 [PATCH] f2fs: add a segment and section num check in sanity_check_raw_super Yunlei He
2015-12-26  2:55 ` He YunLei
2015-12-28 23:10   ` Jaegeuk Kim
2015-12-29  0:58     ` He YunLei
2015-12-29  1:46       ` Jaegeuk Kim
2015-12-31  1:02         ` He YunLei

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.