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authorDeepa Dinamani <deepa.kernel@gmail.com>2017-05-08 15:59:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-08 17:15:15 -0700
commit1134e091006a61d7ea4c33748b598972d1edc5c4 (patch)
treee15245d209507ab129190946c945f7cf66229ec5 /fs
parente37fea58f771c2674709099a09ddafd058fef634 (diff)
fs: ceph: CURRENT_TIME with ktime_get_real_ts()
CURRENT_TIME is not y2038 safe. The macro will be deleted and all the references to it will be replaced by ktime_get_* apis. struct timespec is also not y2038 safe. Retain timespec for timestamp representation here as ceph uses it internally everywhere. These references will be changed to use struct timespec64 in a separate patch. The current_fs_time() api is being changed to use vfs struct inode* as an argument instead of struct super_block*. Set the new mds client request r_stamp field using ktime_get_real_ts() instead of using current_fs_time(). Also, since r_stamp is used as mtime on the server, use timespec_trunc() to truncate the timestamp, using the right granularity from the superblock. This api will be transitioned to be y2038 safe along with vfs. Link: http://lkml.kernel.org/r/1491613030-11599-5-git-send-email-deepa.kernel@gmail.com Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> M: Ilya Dryomov <idryomov@gmail.com> M: "Yan, Zheng" <zyan@redhat.com> M: Sage Weil <sage@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/mds_client.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index c681762d76e6..1d3fa90d40b9 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1666,6 +1666,7 @@ 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 timespec ts;
if (!req)
return ERR_PTR(-ENOMEM);
@@ -1684,7 +1685,8 @@ 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 = current_fs_time(mdsc->fsc->sb);
+ ktime_get_real_ts(&ts);
+ req->r_stamp = timespec_trunc(ts, mdsc->fsc->sb->s_time_gran);
req->r_op = op;
req->r_direct_mode = mode;