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Commit 390306c3 authored by Yan, Zheng's avatar Yan, Zheng Committed by Alex Elder
Browse files

ceph: check mds_wanted for imported cap 



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: default avatarYan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: default avatarSage Weil <sage@inktank.com>
parent 66f58691

fs/ceph/caps.c

+3 −1
Original line number Diff line number Diff line
@@ -2429,7 +2429,9 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant, 
		dout("mds wanted %s -> %s\n",

		     ceph_cap_string(le32_to_cpu(grant->wanted)),

		     ceph_cap_string(wanted));

		grant->wanted = cpu_to_le32(wanted);

		/* imported cap may not have correct mds_wanted */

		if (le32_to_cpu(grant->op) == CEPH_CAP_OP_IMPORT)

			check_caps = 1;

	}



	cap->seq = seq;