From 3589a9190b927f68339f6c4779196360dd453a70 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Fri, 8 May 2015 16:37:28 -0700 Subject: [PATCH] f2fs: avoid value overflow in showing current status This patch fixes overflow when do cat /sys/kernel/debug/f2fs/status. If a section is relatively large, dist value can be overflowed. Reported-by: Yossi Goldfill Signed-off-by: Jaegeuk Kim --- fs/f2fs/debug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index f50acbc50998..efbc83f07305 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -94,7 +94,8 @@ static void update_general_status(struct f2fs_sb_info *sbi) static void update_sit_info(struct f2fs_sb_info *sbi) { struct f2fs_stat_info *si = F2FS_STAT(sbi); - unsigned int blks_per_sec, hblks_per_sec, total_vblocks, bimodal, dist; + unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; + unsigned long long bimodal, dist; unsigned int segno, vblocks; int ndirty = 0;