ceph: stop using current_kernel_time()

ceph_mdsc_create_request() is one of the last callers of the
deprecated current_kernel_time() as well as timespec_trunc().

This changes it to use the timespec64 based interfaces instead,
though we still need to convert the result until we are ready to
change over req->r_stamp.

The output of the two functions, ktime_get_coarse_real_ts64() and
current_kernel_time() is the same coarse-granular timestamp,
the only difference here is that ktime_get_coarse_real_ts64()
doesn't overflow in 2038.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f1590256d2e68258fad9e0cb368f42108d6f16aa..d2679dce73321623fc70e9aed7ad4cf92cf1b2ed 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1779,6 +1779,7 @@ struct ceph_mds_request *
 ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode)
 {
        struct ceph_mds_request *req = kzalloc(sizeof(*req), GFP_NOFS);
+       struct timespec64 ts;
 
        if (!req)
                return ERR_PTR(-ENOMEM);
@@ -1797,7 +1798,9 @@ ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode)
        init_completion(&req->r_safe_completion);
        INIT_LIST_HEAD(&req->r_unsafe_item);
 
-       req->r_stamp = timespec_trunc(current_kernel_time(), mdsc->fsc->sb->s_time_gran);
+       ktime_get_coarse_real_ts64(&ts);
+       req->r_stamp = timespec64_to_timespec(timespec64_trunc(ts,
+                                               mdsc->fsc->sb->s_time_gran));
 
        req->r_op = op;
        req->r_direct_mode = mode;