Commit 21a1a52d authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Linus Torvalds

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.deSigned-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cbf6898f
...@@ -834,7 +834,7 @@ static int nilfs_setup_super(struct super_block *sb, int is_mount) ...@@ -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_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_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: skip_mount_setup:
sbp[0]->s_state = sbp[0]->s_state =
......
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