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lowmemorykiller: fix cma accounting

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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: Vinayak Menon <vinmenon@codeaurora.org>
This commit is contained in:
Vinayak Menon
2018-07-19 12:01:59 +05:30
parent 1f6683771c
commit 263316a189
1 changed files with 7 additions and 18 deletions
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25
drivers/staging/android/lowmemorykiller.c
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@@ -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];
/*
* Assumes that all types of movable pages can be
* served by cma. Fix this if that changes.
*/
if (mtype == MIGRATE_MOVABLE)
return 1;
if (is_migrate_cma(fallbacktype)) {
can_use = 1;
break;
}
if (fallbacktype == MIGRATE_TYPES)
break;
}
}
return can_use;
return 0;
}
void tune_lmk_zone_param(struct zonelist *zonelist, int classzone_idx,