The patch titled
Subject: nilfs2: use 64-bit superblock timstamps
has been added to the -mm tree. Its filename is
nilfs2-use-64-bit-superblock-timstamps.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/nilfs2-use-64-bit-superblock-timstamps.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/nilfs2-use-64-bit-superblock-timstamps.patch
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------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: 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@xxxxxxxx
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nilfs2/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/nilfs2/super.c~nilfs2-use-64-bit-superblock-timstamps fs/nilfs2/super.c
--- a/fs/nilfs2/super.c~nilfs2-use-64-bit-superblock-timstamps
+++ a/fs/nilfs2/super.c
@@ -834,7 +834,7 @@ static int nilfs_setup_super(struct supe
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 =
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
ocfs2-dlmglue-clean-up-timestamp-handling.patch
shmem-use-monotonic-time-for-i_generation.patch
procfs-uptime-use-ktime_get_boottime_ts64.patch
crash-print-timestamp-using-time64_t.patch
nilfs2-use-64-bit-superblock-timstamps.patch
reiserfs-remove-unused-j_timestamp.patch
reiserfs-use-monotonic-time-for-j_trans_start_time.patch
reiserfs-remove-obsolete-print_time-function.patch
fat-propagate-64-bit-inode-timestamps.patch
adfs-use-timespec64-for-time-conversion.patch
sysinfo-remove-get_monotonic_boottime.patch
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