Commit ac9380f6 authored Apr 07, 2021 by Roman Gushchin Committed by Dennis Zhou Apr 16, 2021

percpu: fix a comment about the chunks ordering



Since the commit 3e54097b ("percpu: manage chunks based on
contig_bits instead of free_bytes") chunks are sorted based on the
size of the biggest continuous free area instead of the total number
of free bytes. Update the corresponding comment to reflect this.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>

parent d434405a

mm/percpu.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -99,7 +99,10 @@

		#include "percpu-internal.h"

		/* the slots are sorted by free bytes left, 1-31 bytes share the same slot */
		/*
		* The slots are sorted by the size of the biggest continuous free area.
		* 1-31 bytes share the same slot.
		*/
		#define PCPU_SLOT_BASE_SHIFT 5
		/* chunks in slots below this are subject to being sidelined on failed alloc */
		#define PCPU_SLOT_FAIL_THRESHOLD 3