Merge PR ceph#53494 into main

vshankar · vshankar · commit c6bff7392e22 · 2023-10-04T13:48:31.000+05:30
* refs/pull/53494/head:
	mds: fix stray CInodes' use-after-free bug when submit ELid entry

Reviewed-by: Venky Shankar &lt;vshankar@redhat.com&gt;
Reviewed-by: Dhairya Parmar &lt;dparmar@redhat.com&gt;
Reviewed-by: Patrick Donnelly &lt;pdonnell@redhat.com&gt;
diff --git a/src/mds/MDLog.cc b/src/mds/MDLog.cc
@@ -286,7 +286,9 @@ LogSegment* MDLog::_start_new_segment(SegmentBoundary* sb)
   sb->set_seq(event_seq);
 
   // Adjust to next stray dir
-  mds->mdcache->advance_stray();
+  if (!mds->is_stopping()) {
+    mds->mdcache->advance_stray();
+  }
   return ls;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -286,7 +286,9 @@ LogSegment* MDLog::_start_new_segment(SegmentBoundary* sb)`
`286`	`286`	`sb->set_seq(event_seq);`
`287`	`287`
`288`	`288`	`// Adjust to next stray dir`
`289`		`- mds->mdcache->advance_stray();`
	`289`	`+ if (!mds->is_stopping()) {`
	`290`	`+ mds->mdcache->advance_stray();`
	`291`	`+ }`
`290`	`292`	`return ls;`
`291`	`293`	`}`
`292`	`294`