Messages in this thread Patch in this message | | | From | Roman Gushchin <> | Subject | [PATCH 1/2] mm: slub: call account_slab_page() after slab page initialization | Date | Tue, 10 Nov 2020 11:57:52 -0800 |
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It's convenient to have page->objects initialized before calling into account_slab_page(). In particular, this information can be used to pre-alloc the obj_cgroup vector.
Let's call account_slab_page() a bit later, after the initialization of page->objects.
This commit doesn't bring any functional change, but is required for further optimizations.
Signed-off-by: Roman Gushchin <guro@fb.com> --- mm/slub.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c index 8c9fa24ebbf3..ccdbb62e025d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1622,9 +1622,6 @@ static inline struct page *alloc_slab_page(struct kmem_cache *s, else page = __alloc_pages_node(node, flags, order); - if (page) - account_slab_page(page, order, s); - return page; } @@ -1777,6 +1774,8 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node) page->objects = oo_objects(oo); + account_slab_page(page, oo_order(oo), s, flags); + page->slab_cache = s; __SetPageSlab(page); if (page_is_pfmemalloc(page)) -- 2.26.2
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