diff mbox

ceph: make sure write caps are registered with auth MDS

Message ID 1394244102-15716-1-git-send-email-zheng.z.yan@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yan, Zheng March 8, 2014, 2:01 a.m. UTC 
Only auth MDS can't issue write caps to clients, so don't consider
write caps registered with non-auth MDS as valid.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
---
 fs/ceph/caps.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 1754338..d9ef44e 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -885,7 +885,10 @@  int __ceph_caps_mds_wanted(struct ceph_inode_info *ci)
 		cap = rb_entry(p, struct ceph_cap, ci_node);
 		if (!__cap_is_valid(cap))
 			continue;
-		mds_wanted |= cap->mds_wanted;
+		if (cap == ci->i_auth_cap)
+			mds_wanted |= cap->mds_wanted;
+		else
+			mds_wanted |= (cap->mds_wanted & ~CEPH_CAP_ANY_FILE_WR);
 	}
 	return mds_wanted;
 }