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Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJKu6-00000006fOa-3qMa; Thu, 13 Nov 2025 00:09:34 +0000 From: "Matthew Wilcox (Oracle)" To: Vlastimil Babka , Andrew Morton Cc: "Matthew Wilcox (Oracle)" , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , linux-mm@kvack.org Subject: [PATCH v4 07/16] slab: Remove folio references from kvfree_rcu_cb() Date: Thu, 13 Nov 2025 00:09:21 +0000 Message-ID: <20251113000932.1589073-8-willy@infradead.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251113000932.1589073-1-willy@infradead.org> References: <20251113000932.1589073-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: w84q1ezd55r3xkbe9nho44h5i7roba6p X-Rspam-User: X-Rspamd-Queue-Id: BF9464000F X-Rspamd-Server: rspam10 X-HE-Tag: 1762992589-243863 X-HE-Meta: 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 ZI2h44xt 5APTEqD7rECm6eaZRshSIRGi1P0cCAPFpZaCxkseisvekrM0ea4p4GlydgZi2qZvJQclcHDKMG494QVp5o8//ABaPW5xwDnUB2lLX5MMNaIanEc0KaTz+zpz3xCu9dblH3F9LtbZ2GZO82ByjJ05SJ95NVxVVSZhp1aZkq9cD+TDSC7tjZm7zi3MQulgSnHv5kFt0zYrIDVMv4Amrf8bNymzLlw8R2MHYVDYJF+/kOa492oz0PO0atnNm5B8IyHsDiAeF1PI+ne6Orq08gktPSj/EHW7jdrDXpmeZxxJCFu0xvseM6fnBN3Mwrg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Remove conversions from folio to page and folio to slab. This is preparation for separately allocated struct slab from struct page. Signed-off-by: Matthew Wilcox (Oracle) --- mm/slub.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 05cb7ec48f09..976e116580a6 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -6820,7 +6820,7 @@ static void free_large_kmalloc(struct page *page, void *object) void kvfree_rcu_cb(struct rcu_head *head) { void *obj = head; - struct folio *folio; + struct page *page; struct slab *slab; struct kmem_cache *s; void *slab_addr; @@ -6831,20 +6831,20 @@ void kvfree_rcu_cb(struct rcu_head *head) return; } - folio = virt_to_folio(obj); - if (!folio_test_slab(folio)) { + page = virt_to_page(obj); + slab = page_slab(page); + if (!slab) { /* * rcu_head offset can be only less than page size so no need to - * consider folio order + * consider allocation order */ obj = (void *) PAGE_ALIGN_DOWN((unsigned long)obj); - free_large_kmalloc(&folio->page, obj); + free_large_kmalloc(page, obj); return; } - slab = folio_slab(folio); s = slab->slab_cache; - slab_addr = folio_address(folio); + slab_addr = slab_address(slab); if (is_kfence_address(obj)) { obj = kfence_object_start(obj); -- 2.47.2