[PATCH rfc 4/4] percpu: fix a comment about the chunks ordering
From: Roman Gushchin <hidden>
Date: 2021-03-24 19:07:34
Also in:
lkml
Subsystem:
memory management, per-cpu memory allocator, the rest · Maintainers:
Andrew Morton, Dennis Zhou, Tejun Heo, Christoph Lameter, Linus Torvalds
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 <redacted>
---
mm/percpu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/mm/percpu.c b/mm/percpu.c
index 148137f0fc0b..08fb6e5d3232 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
--
2.30.2