The patch titled
Subject: mm/slub.c: replace kmem_cache->cpu_partial with wrapped APIs
has been added to the -mm tree. Its filename is
mm-slubc-replace-kmem_cache-cpu_partial-with-wrapped-apis.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slubc-replace-kmem_cache-cpu_partial-with-wrapped-apis.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slubc-replace-kmem_cache-cpu_partial-with-wrapped-apis.patch
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------------------------------------------------------
From: chenqiwu <chenqiwu@xxxxxxxxxx>
Subject: mm/slub.c: replace kmem_cache->cpu_partial with wrapped APIs
There are slub_cpu_partial() and slub_set_cpu_partial() APIs to wrap
kmem_cache->cpu_partial. This patch will use the two APIs to replace
kmem_cache->cpu_partial in slub code.
Link: http://lkml.kernel.org/r/1582079562-17980-1-git-send-email-qiwuchen55@xxxxxxxxx
Signed-off-by: chenqiwu <chenqiwu@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/mm/slub.c~mm-slubc-replace-kmem_cache-cpu_partial-with-wrapped-apis
+++ a/mm/slub.c
@@ -2284,7 +2284,7 @@ static void put_cpu_partial(struct kmem_
if (oldpage) {
pobjects = oldpage->pobjects;
pages = oldpage->pages;
- if (drain && pobjects > s->cpu_partial) {
+ if (drain && pobjects > slub_cpu_partial(s)) {
unsigned long flags;
/*
* partial array is full. Move the existing
@@ -2309,7 +2309,7 @@ static void put_cpu_partial(struct kmem_
} while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page)
!= oldpage);
- if (unlikely(!s->cpu_partial)) {
+ if (unlikely(!slub_cpu_partial(s))) {
unsigned long flags;
local_irq_save(flags);
@@ -3493,15 +3493,15 @@ static void set_cpu_partial(struct kmem_
* 50% to keep some capacity around for frees.
*/
if (!kmem_cache_has_cpu_partial(s))
- s->cpu_partial = 0;
+ slub_set_cpu_partial(s, 0);
else if (s->size >= PAGE_SIZE)
- s->cpu_partial = 2;
+ slub_set_cpu_partial(s, 2);
else if (s->size >= 1024)
- s->cpu_partial = 6;
+ slub_set_cpu_partial(s, 6);
else if (s->size >= 256)
- s->cpu_partial = 13;
+ slub_set_cpu_partial(s, 13);
else
- s->cpu_partial = 30;
+ slub_set_cpu_partial(s, 30);
#endif
}
_
Patches currently in -mm which might be from chenqiwu@xxxxxxxxxx are
mm-slubc-replace-cpu_slab-partial-with-wrapped-apis.patch
mm-slubc-replace-kmem_cache-cpu_partial-with-wrapped-apis.patch
