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-rw-r--r--mm/percpu.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 716eb4a..f47af91 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -67,6 +67,7 @@
#include <linux/spinlock.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
+#include <linux/kmemleak.h>
#include <asm/cacheflush.h>
#include <asm/sections.h>
@@ -710,6 +711,7 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved)
const char *err;
int slot, off, new_alloc;
unsigned long flags;
+ void __percpu *ptr;
if (unlikely(!size || size > PCPU_MIN_UNIT_SIZE || align > PAGE_SIZE)) {
WARN(true, "illegal size (%zu) or align (%zu) for "
@@ -802,7 +804,9 @@ area_found:
mutex_unlock(&pcpu_alloc_mutex);
/* return address relative to base address */
- return __addr_to_pcpu_ptr(chunk->base_addr + off);
+ ptr = __addr_to_pcpu_ptr(chunk->base_addr + off);
+ kmemleak_alloc_percpu(ptr, size);
+ return ptr;
fail_unlock:
spin_unlock_irqrestore(&pcpu_lock, flags);
@@ -916,6 +920,8 @@ void free_percpu(void __percpu *ptr)
if (!ptr)
return;
+ kmemleak_free_percpu(ptr);
+
addr = __pcpu_ptr_to_addr(ptr);
spin_lock_irqsave(&pcpu_lock, flags);
@@ -1639,6 +1645,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
rc = -ENOMEM;
goto out_free_areas;
}
+ /* kmemleak tracks the percpu allocations separately */
+ kmemleak_free(ptr);
areas[group] = ptr;
base = min(ptr, base);
@@ -1753,6 +1761,8 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
"for cpu%u\n", psize_str, cpu);
goto enomem;
}
+ /* kmemleak tracks the percpu allocations separately */
+ kmemleak_free(ptr);
pages[j++] = virt_to_page(ptr);
}
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