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| author | Arnd Bergmann <arnd@arndb.de> | 2018-08-21 21:59:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:49 -0700 |
| commit | 21a1a52dbdd5c9dc17c546bbdb95038f53515d2c (patch) | |
| tree | 523229f8ff9767c3e44b68c160a73f70a7f246d5 /fs/nilfs2 | |
| parent | cbf6898fd69455092c43cd573b38d42c86ddb1e0 (diff) | |
| download | lwn-21a1a52dbdd5c9dc17c546bbdb95038f53515d2c.tar.gz lwn-21a1a52dbdd5c9dc17c546bbdb95038f53515d2c.zip | |
nilfs2: use 64-bit superblock timstamps
The mount time field in the superblock uses a 64-bit timestamp, but
calling get_seconds() may truncate the current time to 32 bits.
This changes it to ktime_get_real_seconds() to avoid the potential
overflow.
Link: http://lkml.kernel.org/r/20180620075041.4154396-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
| -rw-r--r-- | fs/nilfs2/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 6ffeca84d7c3..1b9067cf4511 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -834,7 +834,7 @@ static int nilfs_setup_super(struct super_block *sb, int is_mount) sbp[0]->s_max_mnt_count = cpu_to_le16(NILFS_DFL_MAX_MNT_COUNT); sbp[0]->s_mnt_count = cpu_to_le16(mnt_count + 1); - sbp[0]->s_mtime = cpu_to_le64(get_seconds()); + sbp[0]->s_mtime = cpu_to_le64(ktime_get_real_seconds()); skip_mount_setup: sbp[0]->s_state = |