Commit 49a1a3cf authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Guo Ren
Browse files

csky: Use the bitmap API to allocate bitmaps 



Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

While at it, turn a bitmap_clear() into an equivalent bitmap_zero(). It is
also less verbose.

Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: default avatarGuo Ren <guoren@kernel.org>
parent a2310c74

arch/csky/mm/asid.c

+2 −3
Original line number Diff line number Diff line
@@ -27,7 +27,7 @@ static void flush_context(struct asid_info *info) 
	u64 asid;



	/* Update the list of reserved ASIDs and the ASID bitmap. */

	bitmap_clear(info->map, 0, NUM_CTXT_ASIDS(info));

	bitmap_zero(info->map, NUM_CTXT_ASIDS(info));



	for_each_possible_cpu(i) {

		asid = atomic64_xchg_relaxed(&active_asid(info, i), 0);
@@ -178,8 +178,7 @@ int asid_allocator_init(struct asid_info *info, 
	 */

	WARN_ON(NUM_CTXT_ASIDS(info) - 1 <= num_possible_cpus());

	atomic64_set(&info->generation, ASID_FIRST_VERSION(info));

	info->map = kcalloc(BITS_TO_LONGS(NUM_CTXT_ASIDS(info)),

			    sizeof(*info->map), GFP_KERNEL);

	info->map = bitmap_zalloc(NUM_CTXT_ASIDS(info), GFP_KERNEL);

	if (!info->map)

		return -ENOMEM;