Commit 5ae632ed authored by Kefeng Wang's avatar Kefeng Wang Committed by Will Deacon
Browse files

arm64: mm: Use better bitmap_zalloc() 



Use better bitmap_zalloc() to allocate bitmap.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/r/20210529111510.186355-1-wangkefeng.wang@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 40221c73

arch/arm64/mm/context.c

+2 −4
Original line number Diff line number Diff line
@@ -402,14 +402,12 @@ static int asids_init(void) 
{

	asid_bits = get_cpu_asid_bits();

	atomic64_set(&asid_generation, ASID_FIRST_VERSION);

	asid_map = kcalloc(BITS_TO_LONGS(NUM_USER_ASIDS), sizeof(*asid_map),

			   GFP_KERNEL);

	asid_map = bitmap_zalloc(NUM_USER_ASIDS, GFP_KERNEL);

	if (!asid_map)

		panic("Failed to allocate bitmap for %lu ASIDs\n",

		      NUM_USER_ASIDS);



	pinned_asid_map = kcalloc(BITS_TO_LONGS(NUM_USER_ASIDS),

				  sizeof(*pinned_asid_map), GFP_KERNEL);

	pinned_asid_map = bitmap_zalloc(NUM_USER_ASIDS, GFP_KERNEL);

	nr_pinned_asids = 0;



	/*