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 894E337FF73 for ; Sat, 25 Apr 2026 22:07:02 +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=1777154822; cv=none; b=urtNMoeWr7u0tTsoVZZ6VMICDjr61AonIK26DdWQCDdo7ATykiADPX2guTUo5lX/IIpPXNBTAIB1ODILFwE+sYJ9hzuBnVCjcIq/G04x+mYG8Dj9vsSS3jAGVCqXezdTBURWqDlOsREgK/UkLbaHwA+1cQDebVhcLiSuZvjfpA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777154822; c=relaxed/simple; bh=AInOq9zVvXa9aZty4284b/ZXA2TQ2klkvXS4UrEwupc=; h=Date:To:From:Subject:Message-Id; b=IWvGoHiUnlp+3a91/f9/0I5rKYSbMwQSJ9PBJnhUqOJpUnAmW3/v3pV7wWdFXzW5KXJ6L1GObWpVXgHZXdViQsUp8Shu7gfvgRzO1UpeIaPzDqY+QCy+OzdvstC2h7aW81PFlwaLdnJjGULYodWcVvSqmXQVv6W//uzd07clFs0= 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=cI6jsV9S; 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="cI6jsV9S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 577FBC2BCB0; Sat, 25 Apr 2026 22:07:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1777154822; bh=AInOq9zVvXa9aZty4284b/ZXA2TQ2klkvXS4UrEwupc=; h=Date:To:From:Subject:From; b=cI6jsV9S8krMFPVrqSvsZUQEQE9yug08446d4b5f8Yawjx3ZgVPXbQoAlyN7be7eC FKbkI4L1banFBzcwDc2bF+nYEAvsT/Aqs+MvltYW2XuU9qZ0bCdxazNHoeTgSsvpTC LMme+p9B/786yaPBUdX+SOf3XujjoMyveF39wih4= Date: Sat, 25 Apr 2026 15:07:01 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] fs-remove-nr_thps-from-struct-address_space.patch removed from -mm tree Message-Id: <20260425220702.577FBC2BCB0@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: fs: remove nr_thps from struct address_space has been removed from the -mm tree. Its filename was fs-remove-nr_thps-from-struct-address_space.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Zi Yan Subject: fs: remove nr_thps from struct address_space Date: Thu, 23 Apr 2026 22:49:10 -0400 filemap_nr_thps*() are removed, the related field, address_space->nr_thps, is no longer needed. Remove it. This shrinks struct address_space by 8 bytes on 64-bit systems which may increase the number of inodes we can cache. Link: https://lore.kernel.org/20260424024915.28758-8-ziy@nvidia.com Signed-off-by: Zi Yan Reviewed-by: Lorenzo Stoakes (Oracle) Acked-by: David Hildenbrand (Arm) Reviewed-by: Lance Yang Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Baolin Wang Cc: Al Viro Cc: Barry Song Cc: Chris Mason Cc: Christian Brauner Cc: David Sterba Cc: Dev Jain Cc: Jan Kara Cc: Liam Howlett Cc: Michal Hocko Cc: Mike Rapoport Cc: Nico Pache Cc: Ryan Roberts Cc: Shuah Khan Cc: Song Liu Cc: Suren Baghdasaryan Signed-off-by: Andrew Morton --- fs/inode.c | 3 --- include/linux/fs.h | 5 ----- 2 files changed, 8 deletions(-) --- a/fs/inode.c~fs-remove-nr_thps-from-struct-address_space +++ a/fs/inode.c @@ -279,9 +279,6 @@ int inode_init_always_gfp(struct super_b mapping->flags = 0; mapping->wb_err = 0; atomic_set(&mapping->i_mmap_writable, 0); -#ifdef CONFIG_READ_ONLY_THP_FOR_FS - atomic_set(&mapping->nr_thps, 0); -#endif mapping_set_gfp_mask(mapping, GFP_HIGHUSER_MOVABLE); mapping->writeback_index = 0; init_rwsem(&mapping->invalidate_lock); --- a/include/linux/fs.h~fs-remove-nr_thps-from-struct-address_space +++ a/include/linux/fs.h @@ -460,7 +460,6 @@ struct mapping_metadata_bhs { * memory mappings. * @gfp_mask: Memory allocation flags to use for allocating pages. * @i_mmap_writable: Number of VM_SHARED, VM_MAYWRITE mappings. - * @nr_thps: Number of THPs in the pagecache (non-shmem only). * @i_mmap: Tree of private and shared mappings. * @i_mmap_rwsem: Protects @i_mmap and @i_mmap_writable. * @nrpages: Number of page entries, protected by the i_pages lock. @@ -476,10 +475,6 @@ struct address_space { struct rw_semaphore invalidate_lock; gfp_t gfp_mask; atomic_t i_mmap_writable; -#ifdef CONFIG_READ_ONLY_THP_FOR_FS - /* number of thp, only for non-shmem files */ - atomic_t nr_thps; -#endif struct rb_root_cached i_mmap; unsigned long nrpages; pgoff_t writeback_index; _ Patches currently in -mm which might be from ziy@nvidia.com are mm-huge_memory-remove-folio-split-check-for-read_only_thp_for_fs.patch mm-truncate-use-folio_split-in-truncate_inode_partial_folio.patch fs-btrfs-remove-a-comment-referring-to-read_only_thp_for_fs.patch selftests-mm-remove-read_only_thp_for_fs-in-khugepaged.patch selftests-mm-remove-read_only_thp_for_fs-code-from-guard-regions.patch