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Merge tag 'core-debugobjects-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull debugobjects update from Thomas Gleixner:
 "A single update for debug objects:

   - Recheck whether debug objects is enabled before reporting a problem
     to avoid spamming the logs with messages which are caused by a
     concurrent OOM"

* tag 'core-debugobjects-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobjects: Recheck debug_objects_enabled before reporting
This commit is contained in:
Linus Torvalds
2023-06-26 13:33:00 -07:00
parent a0433f8cae 8b64d420fe
commit cef2dd7653
1 changed files with 9 additions and 0 deletions
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9
lib/debugobjects.c
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@@ -498,6 +498,15 @@ static void debug_print_object(struct debug_obj *obj, char *msg)
const struct debug_obj_descr *descr = obj->descr; const struct debug_obj_descr *descr = obj->descr;
static int limit; static int limit;
/*
* Don't report if lookup_object_or_alloc() by the current thread
* failed because lookup_object_or_alloc()/debug_objects_oom() by a
* concurrent thread turned off debug_objects_enabled and cleared
* the hash buckets.
*/
if (!debug_objects_enabled)
return;
if (limit < 5 && descr != descr_test) { if (limit < 5 && descr != descr_test) {
void *hint = descr->debug_hint ? void *hint = descr->debug_hint ?
descr->debug_hint(obj->object) : NULL; descr->debug_hint(obj->object) : NULL;