fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp
authorArnd Bergmann <arnd@arndb.de>
Wed, 22 Aug 2018 05:01:13 +0000 (22:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 22 Aug 2018 17:52:51 +0000 (10:52 -0700)
commit3e811f053aec66e8a6d2a0ee3d031e7c988e3d15
tree222e4403c041f7a4c70360471ca9d4cf4a3e13ff
parentd9edcbc42c77b719e03dedb2aff719ae19659a0f
fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp

get_seconds() is deprecated in favor of ktime_get_real_seconds(), which
returns a 64-bit timestamp.

In the SYSV file system, the superblock timestamp is only 32 bits wide,
and it is used to check whether a file system is clean, so the best
solution seems to be to force a wraparound and explicitly convert it to an
unsigned 32-bit value.

This is independent of the inode timestamps that are also 32-bit wide on
disk and that come from current_time().

Link: http://lkml.kernel.org/r/20180713145236.3152513-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/sysv/inode.c