lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / mm / percpu.c

diff --git a/mm/percpu.c b/mm/percpu.c
index 1f376bc..1c784df 100644 (file)
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -68,6 +68,7 @@
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/kmemleak.h>
+#include <linux/sched.h>
 
 #include <asm/cacheflush.h>
 #include <asm/sections.h>
@@ -1012,8 +1013,11 @@ area_found:
                mutex_unlock(&pcpu_alloc_mutex);
        }
 
-       if (chunk != pcpu_reserved_chunk)
+       if (chunk != pcpu_reserved_chunk) {
+               spin_lock_irqsave(&pcpu_lock, flags);
                pcpu_nr_empty_pop_pages -= occ_pages;
+               spin_unlock_irqrestore(&pcpu_lock, flags);
+       }
 
        if (pcpu_nr_empty_pop_pages < PCPU_EMPTY_POP_PAGES_LOW)
                pcpu_schedule_balance_work();