From: Patrick Donnelly <pdonnell@redhat.com>
Date: Fri, 19 Apr 2024 23:29:44 +0000 (-0400)
Subject: squid: mds: add missing policylock to test F_QUIESCE_BLOCK
X-Git-Tag: testing/wip-lusov-testing-20240611.123850-squid~27^2~33
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=ad9c8b073631eca7b54fae09aeb108fc935f30da;p=ceph-ci.git

squid: mds: add missing policylock to test F_QUIESCE_BLOCK

In order to check an inode's F_QUIESCE_BLOCK, the quiesce_inode op must acquire
the policylock. Furthermore, to ensure the F_QUIESCE_BLOCK is not changed
during quiesce, the lock must be held for the duration of the op's lifetime.

Fixes: https://tracker.ceph.com/issues/65595
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 50613b5562469ad24ed0fc547cafcfdeef5be604)
Fixes: https://tracker.ceph.com/issues/65740
---

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index 703962fcb7b..29af7fbc270 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -13655,6 +13655,7 @@ void MDCache::dispatch_quiesce_inode(const MDRequestRef& mdr)
     MutationImpl::LockOpVec lov;
 
     lov.add_xlock(&in->quiescelock); /* !! */
+    lov.add_rdlock(&in->policylock); /* for F_QUIESCE_BLOCK test */
 
     if (in->is_auth()) {
       if (splitauth) {