From: Roman Gushchin Date: Thu, 8 Apr 2021 03:57:31 +0000 (-0700) Subject: percpu: fix a comment about the chunks ordering X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ac9380f6b8a6a908a9df023bf8a2bcdaf9d2d6cb;p=linux.git percpu: fix a comment about the chunks ordering Since the commit 3e54097beb22 ("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 Signed-off-by: Dennis Zhou --- diff --git a/mm/percpu.c b/mm/percpu.c index 23308113a5ff0..2c459a0ee5e6d 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -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