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Subject[PATCH] nilfs2: use 64-bit superblock timstamps
Date
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.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
fs/nilfs2/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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 =
--
2.9.0
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