The patch titled
Subject: mm, slub: detach whole partial list at once in unfreeze_partials()
has been removed from the -mm tree. Its filename was
mm-slub-detach-whole-partial-list-at-once-in-unfreeze_partials.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm, slub: detach whole partial list at once in unfreeze_partials()
Instead of iterating through the live percpu partial list, detach it from
the kmem_cache_cpu at once. This is simpler and will allow further
optimization.
Link: https://lkml.kernel.org/r/20210904105003.11688-24-vbabka@xxxxxxx
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Qian Cai <quic_qiancai@xxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/mm/slub.c~mm-slub-detach-whole-partial-list-at-once-in-unfreeze_partials
+++ a/mm/slub.c
@@ -2358,16 +2358,20 @@ static void unfreeze_partials(struct kme
{
#ifdef CONFIG_SLUB_CPU_PARTIAL
struct kmem_cache_node *n = NULL, *n2 = NULL;
- struct page *page, *discard_page = NULL;
+ struct page *page, *partial_page, *discard_page = NULL;
unsigned long flags;
local_irq_save(flags);
- while ((page = slub_percpu_partial(c))) {
+ partial_page = slub_percpu_partial(c);
+ c->partial = NULL;
+
+ while (partial_page) {
struct page new;
struct page old;
- slub_set_percpu_partial(c, page);
+ page = partial_page;
+ partial_page = page->next;
n2 = get_node(s, page_to_nid(page));
if (n != n2) {
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
