From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6C6BA37A48B for ; Tue, 24 Mar 2026 21:44:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774388653; cv=none; b=HiFcn+okqiRWHls0F7Uns1/eiLgFvyvzW/KRiZBBxzRwPr1oy8d53ubTzXiof0Q2WK8rGOV9hdJ8ocbk373pjeJzQ1TI7wq9MpnG0GHGqrLJnu8By55CgQGtuQmrC3y2XeoB/ssyEpfqKpRSET7iGqT5MwU8B07tmp0mUDS15Mc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774388653; c=relaxed/simple; bh=1EOFIC3bVAax0R+VoL3PtOPm97L4Mdsxt7UffKDerOg=; h=Date:To:From:Subject:Message-Id; b=iWLuweIobgiHCrPzhHcDAJePJUJVdMlEWPdvdSjkSdqYrKWmFb3N6SprrIS6lNwB8uxAVzaZJhrNs/mCKi/5DRTqipdQRCK4xm17KhM4z3DVflDc1DMzxhhzUDgNtoDeUh6/8Cj+daqZI/M8uSIs71oGH8wyFT3d6PigupaA6lg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=PMkoHzYg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="PMkoHzYg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EE04C2BCB2; Tue, 24 Mar 2026 21:44:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774388653; bh=1EOFIC3bVAax0R+VoL3PtOPm97L4Mdsxt7UffKDerOg=; h=Date:To:From:Subject:From; b=PMkoHzYgxIElQfi9QGoVZPEbK9IR0IkQrIr6sgL1lZkfOoK9TY/01vVvG5qMwnmiw 3NuAy6XLHw6S7BoZuLKrt3WHYe9WbRe4oHPJywraRRECZuNXeYAnJqAUT4vUeoL9zw reMsCMKTSfindXN/oOwij/3w+vyNNpAYMiN5L/+g= Date: Tue, 24 Mar 2026 14:44:12 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,willy@infradead.org,vbabka@suse.cz,usamaarif642@gmail.com,rppt@kernel.org,roman.gushchin@linux.dev,rientjes@google.com,paul.walmsley@sifive.com,palmer@dabbelt.com,osalvador@suse.de,muchun.song@linux.dev,mhocko@suse.com,lorenzo.stoakes@oracle.com,kernel@xen0n.name,harry.yoo@oracle.com,hannes@cmpxchg.org,fvdl@google.com,david@kernel.org,corbet@lwn.net,cl@gentwo.org,chenhuacai@kernel.org,bhe@redhat.com,aou@eecs.berkeley.edu,alex@ghiti.fr,kas@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-slab-use-compound_head-in-page_slab.patch removed from -mm tree Message-Id: <20260324214413.3EE04C2BCB2@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/slab: use compound_head() in page_slab() has been removed from the -mm tree. Its filename was mm-slab-use-compound_head-in-page_slab.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Kiryl Shutsemau Subject: mm/slab: use compound_head() in page_slab() Date: Fri, 27 Feb 2026 19:42:56 +0000 page_slab() contained an open-coded implementation of compound_head(). Replace the duplicated code with a direct call to compound_head(). Link: https://lkml.kernel.org/r/20260227194302.274384-19-kas@kernel.org Signed-off-by: Kiryl Shutsemau Acked-by: David Hildenbrand (Arm) Reviewed-by: Vlastimil Babka Cc: Albert Ou Cc: Alexandre Ghiti Cc: Baoquan He Cc: Christoph Lameter Cc: David Rientjes Cc: Frank van der Linden Cc: Harry Yoo Cc: Huacai Chen Cc: Johannes Weiner Cc: Jonathan Corbet Cc: Lorenzo Stoakes Cc: Matthew Wilcox (Oracle) Cc: Michal Hocko Cc: Mike Rapoport Cc: Muchun Song Cc: Oscar Salvador Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Roman Gushchin Cc: Usama Arif Cc: WANG Xuerui Cc: Zi Yan Signed-off-by: Andrew Morton --- mm/slab.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) --- a/mm/slab.h~mm-slab-use-compound_head-in-page_slab +++ a/mm/slab.h @@ -131,19 +131,7 @@ static_assert(IS_ALIGNED(offsetof(struct */ static inline struct slab *page_slab(const struct page *page) { - unsigned long info; - - info = READ_ONCE(page->compound_info); - if (info & 1) { - /* See compound_head() */ - if (compound_info_has_mask()) { - unsigned long p = (unsigned long)page; - page = (struct page *)(p & info); - } else { - page = (struct page *)(info - 1); - } - } - + page = compound_head(page); if (data_race(page->page_type >> 24) != PGTY_slab) page = NULL; _ Patches currently in -mm which might be from kas@kernel.org are