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exfat: properly set s_time_gran

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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 <sandeen@sandeen.net>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
This commit is contained in:
Eric Sandeen 2020-04-17 15:40:01 +09:00 • committed by Namjae Jeon
commit b0333de3ff
1 changed files with 1 additions and 1 deletions
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super.c
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@ -762,7 +762,7 @@ static int exfat_fill_super(struct super_block *sb, void *data, int silent)
sb->s_op = &exfat_sops;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
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;
#endif