From 674a9985b8e35288225f2b67829a7dee3bf761da Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Fri, 17 Apr 2020 14:43:49 +0900 Subject: [Backport 674a9985b8e3] exfat: properly set s_time_gran The s_time_gran superblock field indicates the on-disk nanosecond granularity of timestamps, and for exfat that seems to be 10ms, so set s_time_gran to 10000000ns. Without this, in-memory timestamps change when they get re-read from disk. Signed-off-by: Eric Sandeen Signed-off-by: Namjae Jeon --- src/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/super.c b/src/super.c index cb5eac38102d92d9312667fdaa722f6a00d2ad16..ee42ecf59059a6c9bf61f5b6ec19efde21a4d897 100644 --- a/src/super.c +++ b/src/super.c @@ -529,7 +529,7 @@ static int exfat_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_magic = EXFAT_SUPER_MAGIC; sb->s_op = &exfat_sops; - sb->s_time_gran = 1; + sb->s_time_gran = 10 * NSEC_PER_MSEC; sb->s_time_min = EXFAT_MIN_TIMESTAMP_SECS; sb->s_time_max = EXFAT_MAX_TIMESTAMP_SECS; -- 2.31.1