From: Vlastimil Babka <vbabka@suse.cz>
To: Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Matthew Wilcox <willy@infradead.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Roman Gushchin <roman.gushchin@linux.dev>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
maple-tree@lists.infradead.org, kasan-dev@googlegroups.com
Subject: [PATCH RFC v3 7/9] maple_tree: use slub percpu array
Date: Wed, 29 Nov 2023 10:53:32 +0100 [thread overview]
Message-ID: <20231129-slub-percpu-caches-v3-7-6bcf536772bc@suse.cz> (raw)
In-Reply-To: <20231129-slub-percpu-caches-v3-0-6bcf536772bc@suse.cz>
Just make sure the maple_node_cache has a percpu array of size 32.
Will break with CONFIG_SLAB.
---
lib/maple_tree.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index bb24d84a4922..d9e7088fd9a7 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -6213,9 +6213,16 @@ bool mas_nomem(struct ma_state *mas, gfp_t gfp)
void __init maple_tree_init(void)
{
+ int ret;
+
maple_node_cache = kmem_cache_create("maple_node",
sizeof(struct maple_node), sizeof(struct maple_node),
- SLAB_PANIC, NULL);
+ SLAB_PANIC | SLAB_NO_MERGE, NULL);
+
+ ret = kmem_cache_setup_percpu_array(maple_node_cache, 32);
+
+ if (ret)
+ pr_warn("error %d creating percpu_array for maple_node_cache\n", ret);
}
/**
--
2.43.0
next prev parent reply other threads:[~2023-11-29 9:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-29 9:53 [PATCH RFC v3 0/9] SLUB percpu array caches and maple tree nodes Vlastimil Babka
2023-11-29 9:53 ` [PATCH RFC v3 1/9] mm/slub: fix bulk alloc and free stats Vlastimil Babka
2023-11-29 9:53 ` [PATCH RFC v3 2/9] mm/slub: introduce __kmem_cache_free_bulk() without free hooks Vlastimil Babka
2023-11-29 9:53 ` [PATCH RFC v3 3/9] mm/slub: handle bulk and single object freeing separately Vlastimil Babka
2023-11-29 9:53 ` [PATCH RFC v3 4/9] mm/slub: free KFENCE objects in slab_free_hook() Vlastimil Babka
2023-11-29 12:00 ` Marco Elver
2023-11-29 9:53 ` [PATCH RFC v3 5/9] mm/slub: add opt-in percpu array cache of objects Vlastimil Babka
2023-11-29 10:35 ` Marco Elver
2023-12-15 18:28 ` Suren Baghdasaryan
2023-12-15 21:17 ` Suren Baghdasaryan
2023-11-29 9:53 ` [PATCH RFC v3 6/9] tools: Add SLUB percpu array functions for testing Vlastimil Babka
2023-11-29 9:53 ` Vlastimil Babka [this message]
2023-11-29 9:53 ` [PATCH RFC v3 8/9] maple_tree: Remove MA_STATE_PREALLOC Vlastimil Babka
2023-11-29 9:53 ` [PATCH RFC v3 9/9] maple_tree: replace preallocation with slub percpu array prefill Vlastimil Babka
2023-11-29 20:16 ` [PATCH RFC v3 0/9] SLUB percpu array caches and maple tree nodes Christoph Lameter (Ampere)
2023-11-29 21:20 ` Matthew Wilcox
2023-12-14 20:14 ` Christoph Lameter (Ampere)
2023-11-30 9:14 ` Vlastimil Babka
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