fs: ceph: Initialize filesystem timestamp ranges

Fill in the appropriate limits to avoid inconsistencies
in the vfs cached inode times when timestamps are
outside the permitted range.

According to the disscussion in
https://patchwork.kernel.org/patch/8308691/ we agreed to use
unsigned 32 bit timestamps on ceph.
Update the limits accordingly.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
Cc: zyan@redhat.com
Cc: sage@redhat.com
Cc: idryomov@gmail.com
Cc: ceph-devel@vger.kernel.org

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index ab4868c7308ecc9011fd76bf06307244658f2580..377fafc76f200526f9bac4ca7a7468fe004ef0c4 100644 (file)
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -979,6 +979,8 @@ static int ceph_set_super(struct super_block *s, void *data)
        s->s_export_op = &ceph_export_ops;
 
        s->s_time_gran = 1;
+       s->s_time_min = 0;
+       s->s_time_max = U32_MAX;
 
        ret = set_anon_super(s, NULL);  /* what is that second arg for? */
        if (ret != 0)