From 5e0debe012f31d6409b840920d0c37396d32ce30 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Tue, 26 Mar 2024 17:10:30 +0000 Subject: slub: remove use of page->flags Use slub->__page_flags instead. We can also remove the assertion that it's not a tail page as struct slab never points to a tail page. Link: https://lkml.kernel.org/r/20240326171045.410737-9-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/slub.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 6437746be03d..e09d8260adff 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -616,18 +616,12 @@ slub_set_cpu_partial(struct kmem_cache *s, unsigned int nr_objects) */ static __always_inline void slab_lock(struct slab *slab) { - struct page *page = slab_page(slab); - - VM_BUG_ON_PAGE(PageTail(page), page); - bit_spin_lock(PG_locked, &page->flags); + bit_spin_lock(PG_locked, &slab->__page_flags); } static __always_inline void slab_unlock(struct slab *slab) { - struct page *page = slab_page(slab); - - VM_BUG_ON_PAGE(PageTail(page), page); - bit_spin_unlock(PG_locked, &page->flags); + bit_spin_unlock(PG_locked, &slab->__page_flags); } static inline bool -- cgit v1.2.3