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Commit dbb1f81c authored by Catalin Marinas's avatar Catalin Marinas
Browse files

kmemleak: Add kmemleak_alloc callback from alloc_large_system_hash 



The alloc_large_system_hash function is called from various places in
the kernel and it contains pointers to other allocated structures. It
therefore needs to be traced by kmemleak.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 89219d37

mm/page_alloc.c

+11 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 
#include <linux/page-isolation.h>

#include <linux/page_cgroup.h>

#include <linux/debugobjects.h>

#include <linux/kmemleak.h>



#include <asm/tlbflush.h>

#include <asm/div64.h>
@@ -4546,6 +4547,16 @@ void *__init alloc_large_system_hash(const char *tablename, 
	if (_hash_mask)

		*_hash_mask = (1 << log2qty) - 1;



	/*

	 * If hashdist is set, the table allocation is done with __vmalloc()

	 * which invokes the kmemleak_alloc() callback. This function may also

	 * be called before the slab and kmemleak are initialised when

	 * kmemleak simply buffers the request to be executed later

	 * (GFP_ATOMIC flag ignored in this case).

	 */

	if (!hashdist)

		kmemleak_alloc(table, size, 1, GFP_ATOMIC);



	return table;

}