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authorSage Weil <sage@inktank.com>2014-05-22 04:41:08 +0400
committerYan, Zheng <zheng.z.yan@intel.com>2014-06-06 05:30:00 +0400
commitb8e69066d8afa8d2670dc697252ff0e5907aafad (patch)
treefd4969aaae0ba9e39ec7395768ed4b5b67c42b9a /fs/ceph/mds_client.h
parentffe312cf31c7d8616096616d469eb5f6bb8905c0 (diff)
downloadlinux-b8e69066d8afa8d2670dc697252ff0e5907aafad.tar.xz
ceph: include time stamp in every MDS request
We recently modified the client/MDS protocol to include a timestamp in the client request. This allows ctime updates to follow the client's clock in most cases, which avoids subtle problems when clocks are out of sync and timestamps are updated sometimes by the MDS clock (for most requests) and sometimes by the client clock (for cap writeback). Signed-off-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'fs/ceph/mds_client.h')
-rw-r--r--fs/ceph/mds_client.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index e90cfccf93bd..e00737cf523c 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -194,6 +194,7 @@ struct ceph_mds_request {
int r_fmode; /* file mode, if expecting cap */
kuid_t r_uid;
kgid_t r_gid;
+ struct timespec r_stamp;
/* for choosing which mds to send this request to */
int r_direct_mode;