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| author | Arnd Bergmann <arnd@arndb.de> | 2018-02-06 15:39:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-06 18:32:45 -0800 |
| commit | fb04b91bc2c3a83e9e2ba9c5ce0f0124dd3ffef0 (patch) | |
| tree | 00e48e16224695ef3eb0cf0b29a57a51a90fea6a /fs/nilfs2/super.c | |
| parent | ca3a45697be3ad59aa8f8f83d0e277b49f4b5680 (diff) | |
| download | linux-stable-fb04b91bc2c3a83e9e2ba9c5ce0f0124dd3ffef0.tar.gz linux-stable-fb04b91bc2c3a83e9e2ba9c5ce0f0124dd3ffef0.tar.bz2 linux-stable-fb04b91bc2c3a83e9e2ba9c5ce0f0124dd3ffef0.zip | |
nilfs2: use time64_t internally
The superblock and segment timestamps are used only internally in nilfs2
and can be read out using sysfs.
Since we are using the old 'get_seconds()' interface and store the data
as timestamps, the behavior differs slightly between 64-bit and 32-bit
kernels, the latter will show incorrect timestamps after 2038 in sysfs,
and presumably fail completely in 2106 as comparisons go wrong.
This changes nilfs2 to use time64_t with ktime_get_real_seconds() to
handle timestamps, making the behavior consistent and correct on both
32-bit and 64-bit machines.
The on-disk format already uses 64-bit timestamps, so nothing changes
there.
Link: http://lkml.kernel.org/r/20180122211050.1286441-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/super.c')
| -rw-r--r-- | fs/nilfs2/super.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 3073b646e1ba..6ffeca84d7c3 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -283,10 +283,10 @@ int nilfs_commit_super(struct super_block *sb, int flag) { struct the_nilfs *nilfs = sb->s_fs_info; struct nilfs_super_block **sbp = nilfs->ns_sbp; - time_t t; + time64_t t; /* nilfs->ns_sem must be locked by the caller. */ - t = get_seconds(); + t = ktime_get_real_seconds(); nilfs->ns_sbwtime = t; sbp[0]->s_wtime = cpu_to_le64(t); sbp[0]->s_sum = 0; |