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Commit 263316a1 authored by Vinayak Menon's avatar Vinayak Menon
Browse files

lowmemorykiller: fix cma accounting 



lowmemorykiller checks if the current request can be
served from CMA region or not by looking at the gfp_mask.
But the logic used is no more valid as MIGRATE_CMA is not
a fallback for MIGRATE_MOVABLE. Fix it.

Change-Id: Ie8f132a52d8106810332fd2db5a341b299feacfb
Signed-off-by: default avatarVinayak Menon <vinmenon@codeaurora.org>
parent 1f668377

drivers/staging/android/lowmemorykiller.c

+7 −18
Original line number Diff line number Diff line
@@ -264,27 +264,16 @@ static DEFINE_MUTEX(scan_mutex); 


static int can_use_cma_pages(gfp_t gfp_mask)

{

	int can_use = 0;

	int mtype = gfpflags_to_migratetype(gfp_mask);

	int i = 0;

	int *mtype_fallbacks = get_migratetype_fallbacks(mtype);



	if (is_migrate_cma(mtype)) {

		can_use = 1;

	} else {

		for (i = 0;; i++) {

			int fallbacktype = mtype_fallbacks[i];



			if (is_migrate_cma(fallbacktype)) {

				can_use = 1;

				break;

			}

	/*

	 * Assumes that all types of movable pages can be

	 * served by cma. Fix this if that changes.

	 */

	if (mtype == MIGRATE_MOVABLE)

		return 1;



			if (fallbacktype == MIGRATE_TYPES)

				break;

		}

	}

	return can_use;

	return 0;

}



void tune_lmk_zone_param(struct zonelist *zonelist, int classzone_idx,