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authorChao Yu <yuchao0@huawei.com>2018-06-04 23:20:17 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-06-04 14:31:11 -0700
commita1f72ac2c0a8d8a3488b31867c9255264331a4db (patch)
treef61d166a69bd130f8cade778733f9170a52ce4c0 /fs/f2fs/segment.c
parent1061fd484bd442392c7bd491f7f154b1ce233173 (diff)
f2fs: fix to update mtime correctly
If we change system time to the past, get_mtime() will return a overflowed time, and SIT_I(sbi)->max_mtime will be udpated incorrectly, this patch fixes the two issues. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
-rw-r--r--fs/f2fs/segment.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index f0f9593185a7..6dbdf2c48fba 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1822,8 +1822,9 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
(new_vblocks > sbi->blocks_per_seg)));
se->valid_blocks = new_vblocks;
- se->mtime = get_mtime(sbi);
- SIT_I(sbi)->max_mtime = se->mtime;
+ se->mtime = get_mtime(sbi, false);
+ if (se->mtime > SIT_I(sbi)->max_mtime)
+ SIT_I(sbi)->max_mtime = se->mtime;
/* Update valid block bitmap */
if (del > 0) {
@@ -3884,7 +3885,7 @@ static void init_min_max_mtime(struct f2fs_sb_info *sbi)
if (sit_i->min_mtime > mtime)
sit_i->min_mtime = mtime;
}
- sit_i->max_mtime = get_mtime(sbi);
+ sit_i->max_mtime = get_mtime(sbi, false);
up_write(&sit_i->sentry_lock);
}