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Commit a2550604 authored by Yan, Zheng's avatar Yan, Zheng Committed by Sage Weil
Browse files

ceph: make sure write caps are registered with auth MDS 



Only auth MDS can issue write caps to clients, so don't consider
write caps registered with non-auth MDS as valid.

Signed-off-by: default avatarYan, Zheng <zheng.z.yan@intel.com>
parent c137a32a

fs/ceph/caps.c

+4 −1
Original line number Original line Diff line number Diff line
@@ -885,7 +885,10 @@ int __ceph_caps_mds_wanted(struct ceph_inode_info *ci) 
		cap = rb_entry(p, struct ceph_cap, ci_node);

		cap = rb_entry(p, struct ceph_cap, ci_node);

		if (!__cap_is_valid(cap))

		if (!__cap_is_valid(cap))

			continue;

			continue;

		if (cap == ci->i_auth_cap)

			mds_wanted |= cap->mds_wanted;

			mds_wanted |= cap->mds_wanted;

		else

			mds_wanted |= (cap->mds_wanted & ~CEPH_CAP_ANY_FILE_WR);

	}

	}

	return mds_wanted;

	return mds_wanted;

}

}