Commit 9078370c authored by Catalin Marinas's avatar Catalin Marinas
Browse files

kmemleak: Add support for NO_BOOTMEM configurations 



With commits 08677214 and 59be5a8e, alloc_bootmem()/free_bootmem() and
friends use the early_res functions for memory management when
NO_BOOTMEM is enabled. This patch adds the kmemleak calls in the
corresponding code paths for bootmem allocations.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Acked-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
Acked-by: default avatarYinghai Lu <yinghai@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: stable@kernel.org
parent 7952f988

kernel/early_res.c

+6 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ 
#include <linux/bootmem.h>

#include <linux/mm.h>

#include <linux/early_res.h>

#include <linux/slab.h>

#include <linux/kmemleak.h>



/*

 * Early reserved memory areas.
@@ -319,6 +321,8 @@ void __init free_early(u64 start, u64 end) 
	struct early_res *r;

	int i;



	kmemleak_free_part(__va(start), end - start);



	i = find_overlapped_early(start, end);

	r = &early_res[i];

	if (i >= max_early_res || r->end != end || r->start != start)
@@ -333,6 +337,8 @@ void __init free_early_partial(u64 start, u64 end) 
	struct early_res *r;

	int i;



	kmemleak_free_part(__va(start), end - start);



	if (start == end)

		return;

mm/page_alloc.c

+5 −0
Original line number Diff line number Diff line
@@ -3659,6 +3659,11 @@ void * __init __alloc_memory_core_early(int nid, u64 size, u64 align, 
		ptr = phys_to_virt(addr);

		memset(ptr, 0, size);

		reserve_early_without_check(addr, addr + size, "BOOTMEM");

		/*

		 * The min_count is set to 0 so that bootmem allocated blocks

		 * are never reported as leaks.

		 */

		kmemleak_alloc(ptr, size, 0, 0);

		return ptr;

	}

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