| Message ID | 20180713201923.3200799-2-arnd@arndb.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
The cephfs part (patch 2~5) looks good for me. Regards Yan, Zheng On Sat, Jul 14, 2018 at 4:21 AM Arnd Bergmann <arnd@arndb.de> wrote: > > 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> > --- > v2: add clarification that this is the same timestamp > --- > fs/ceph/mds_client.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c > index dc8bc664a871..69c839316a7a 100644 > --- 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; > -- > 2.9.0 > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index dc8bc664a871..69c839316a7a 100644 --- 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;
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> --- v2: add clarification that this is the same timestamp --- fs/ceph/mds_client.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)