From: "Yan, Zheng" <zheng.z.yan@xxxxxxxxx>
The MDS may have incorrect wanted caps after importing caps. So the
client should check the value mds has and send cap update if necessary.
Signed-off-by: Yan, Zheng <zheng.z.yan@xxxxxxxxx>
---
fs/ceph/caps.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 7e90299..16c10f8 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2425,10 +2425,12 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
ceph_cap_string(used),
ceph_cap_string(dirty));
if (wanted != le32_to_cpu(grant->wanted)) {
- dout("mds wanted %s -> %s\n",
- ceph_cap_string(le32_to_cpu(grant->wanted)),
- ceph_cap_string(wanted));
- grant->wanted = cpu_to_le32(wanted);
+ dout("mds wanted = %s\n",
+ ceph_cap_string(le32_to_cpu(grant->wanted)));
+ /* imported cap may not have correct mds_wanted */
+ if (cap == ci->i_auth_cap &&
+ (wanted & ~(cap->mds_wanted | cap->issued)))
+ check_caps = 1;
}
cap->seq = seq;
--
1.7.11.7
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
