KEYS: Make the key reaper non-reentrant

Make the key reaper non-reentrant by sticking it on the appropriate system work queue when we queue it. This will allow it to have global state and drop locks. It should probably be non-reentrant already as it may spend a long time holding the key serial spinlock, and so multiple entrants can spend long periods of time just sitting there spinning, waiting to get the lock. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>

KEYS: Make the key reaper non-reentrant
Make the key reaper non-reentrant by sticking it on the appropriate system work queue when we queue it. This will allow it to have global state and drop locks. It should probably be non-reentrant already as it may spend a long time holding the key serial spinlock, and so multiple entrants can spend long periods of time just sitting there spinning, waiting to get the lock. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
David Howells · James Morris
1 parent 8bc16deabc
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
security/keys/key.c
@@ -602,7 +602,7 @@
 		key_check(key);
  
 		if (atomic_dec_and_test(&key->usage))
-			schedule_work(&key_gc_unused_work);
+			queue_work(system_nrt_wq, &key_gc_unused_work);
 	}
 }
 EXPORT_SYMBOL(key_put);
...	...	@@ -602,7 +602,7 @@
602	602	key_check(key);
603	603
604	604	if (atomic_dec_and_test(&key->usage))
605		- schedule_work(&key_gc_unused_work);
	605	+ queue_work(system_nrt_wq, &key_gc_unused_work);
606	606	}
607	607	}
608	608	EXPORT_SYMBOL(key_put);