Commit 8910ae896c8c (kmemleak: change some global variables to int), in
addition to the atomic -> int conversion, moved the kmemleak_early_log
disabling at the beginning of the kmemleak_init() function, before the
full kmemleak tracing is actually enabled. In this small window,
kmem_cache_create() is called by kmemleak which triggers additional
memory allocation that are not traced. This patch restores the original
logic with kmemleak_early_log disabling when kmemleak is fully
functional.
Fixes: 8910ae896c8c (kmemleak: change some global variables to int)
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
Cc: Li Zefan <lizefan@xxxxxxxxxx>
---
mm/kmemleak.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 61a64ed2fbef..33599ba0cd8d 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1809,10 +1809,9 @@ void __init kmemleak_init(void)
int i;
unsigned long flags;
- kmemleak_early_log = 0;
-
#ifdef CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF
if (!kmemleak_skip_disable) {
+ kmemleak_early_log = 0;
kmemleak_disable();
return;
}
@@ -1830,6 +1829,7 @@ void __init kmemleak_init(void)
/* the kernel is still in UP mode, so disabling the IRQs is enough */
local_irq_save(flags);
+ kmemleak_early_log = 0;
if (kmemleak_error) {
local_irq_restore(flags);
return;
--
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