Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e46a5e28 authored by Seth, Rohit's avatar Seth, Rohit Committed by Linus Torvalds
Browse files

[PATCH] mm: set per-cpu-pages lower threshold to zero 



Set the low water mark for hot pages in pcp to zero.

(akpm: for the life of me I cannot remember why we created pcp->low.  Neither
can Martin and the changelog is silent.  Maybe it was just a brainfart, but I
have this feeling that there was a reason.  If not, we should remove the
fields completely.  We'll see.)

Signed-off-by: default avatarRohit Seth <rohit.seth@intel.com>
Cc: <linux-mm@kvack.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ba56e91c

mm/page_alloc.c

+2 −2
Original line number Diff line number Diff line
@@ -1755,7 +1755,7 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) 


	pcp = &p->pcp[0];		/* hot */

	pcp->count = 0;

	pcp->low = 2 * batch;

	pcp->low = 0;

	pcp->high = 6 * batch;

	pcp->batch = max(1UL, 1 * batch);

	INIT_LIST_HEAD(&pcp->list);
@@ -1764,7 +1764,7 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) 
	pcp->count = 0;

	pcp->low = 0;

	pcp->high = 2 * batch;

	pcp->batch = max(1UL, 1 * batch);

	pcp->batch = max(1UL, batch/2);

	INIT_LIST_HEAD(&pcp->list);

}