mds: fix EXCL rdlock rule

Only the exclusive client should be able to rdlock.  (if anyone!)

No observed problems, caught by inspection.

diff --git a/src/mds/locks.c b/src/mds/locks.c
index ed6271005109a49d15198379bb337876d5623dc1..80c6bd9725c100cba02e3d15b5788a6fe33a9612 100644 (file)
--- a/src/mds/locks.c
+++ b/src/mds/locks.c
@@ -100,7 +100,7 @@ struct sm_state_t filelock[LOCK_MAX] = {
     [LOCK_SYNC_MIX2] = { LOCK_MIX,  false, 0,         ANY,  0,   0,   0,   0,   0,   CEPH_CAP_GRD,0,0,CEPH_CAP_GRD },
     [LOCK_EXCL_MIX]  = { LOCK_MIX,  true,  LOCK_LOCK, 0,    0,   0,   XCL, 0,   0,   0,CEPH_CAP_GRD|CEPH_CAP_GWR,0,0 },
     
-    [LOCK_EXCL]      = { 0,         true,  LOCK_LOCK, 0,    0,   AUTH,XCL, 0,   0,   0,CEPH_CAP_GSHARED|CEPH_CAP_GEXCL|CEPH_CAP_GCACHE|CEPH_CAP_GRD|CEPH_CAP_GWR|CEPH_CAP_GBUFFER,0,0 },
+    [LOCK_EXCL]      = { 0,         true,  LOCK_LOCK, 0,    0,   XCL, XCL, 0,   0,   0,CEPH_CAP_GSHARED|CEPH_CAP_GEXCL|CEPH_CAP_GCACHE|CEPH_CAP_GRD|CEPH_CAP_GWR|CEPH_CAP_GBUFFER,0,0 },
     [LOCK_SYNC_EXCL] = { LOCK_EXCL, true,  LOCK_LOCK, AUTH, 0,   0,   0,   0,   0,   0,CEPH_CAP_GSHARED|CEPH_CAP_GCACHE|CEPH_CAP_GRD,0,0 },
     [LOCK_MIX_EXCL]  = { LOCK_EXCL, true,  LOCK_LOCK, 0,    0,   0,   XCL, 0,   0,   0,CEPH_CAP_GRD|CEPH_CAP_GWR,0,0 },
     [LOCK_LOCK_EXCL] = { LOCK_EXCL, true,  LOCK_LOCK, AUTH, 0,   0,   0,   0,   0,   0,CEPH_CAP_GCACHE|CEPH_CAP_GBUFFER,0,0 },