From nobody Thu Nov 28 22:34:38 2024 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (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 C66FC136337; Thu, 26 Sep 2024 14:01:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727359304; cv=none; b=GhAV1Cy85pxWTfHuLTwi8DRWDDKp2orI2OR8q9tbeYinr7QN7Ba4PKsDyJnzZ7Wm8QxWyHGXvTFNEwsAgo/f4bnTviaISAH2WxqjWlqojxl537i4CxMN2/Vgrxor22BaiCEgjJojJtXY/1q3OqOhEc+w3Al4Tf5sPKvuX8PmD8Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727359304; c=relaxed/simple; bh=EmMCExrHRfEXVznU1fY4zpfSermDkzsBD7jQQ70mRZ4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=LwNJQxmMiLMs7naiYsG8opiy0TaSfyufSnzYkMkxp+eAvkrwY+/dHKD5kKL3jTMyl9n5Y2uLmuBBmrQ/2T13mfPXZi2Vt+UfLM79reX5GZVJjqAMVoJ/3w2hdHAHH4t8aX9LAW8IP0LbfFBmrgyf6NWuLlXY4ZtvxeBwXRM52KQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=pankajraghav.com; spf=pass smtp.mailfrom=pankajraghav.com; dkim=pass (2048-bit key) header.d=pankajraghav.com header.i=@pankajraghav.com header.b=B/hzg0lE; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=pankajraghav.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pankajraghav.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=pankajraghav.com header.i=@pankajraghav.com header.b="B/hzg0lE" Received: from smtp1.mailbox.org (smtp1.mailbox.org [IPv6:2001:67c:2050:b231:465::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4XDwHx69cbz9v1R; Thu, 26 Sep 2024 16:01:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pankajraghav.com; s=MBO0001; t=1727359293; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=w3yVqcJ29OEQ9vfqFMLDk33CQ5+GhguYzGm7fkCs0Fo=; b=B/hzg0lEblt0XlID897/ZRjsqDcP0jLjdHy9khrBa2XGuPS4avvtELj0OpJGDbeioi61t7 IeK7Uva9eqJjQJNAQtFL/osMaWw++FQkcMI5eaZcWmv8r1oYWl6Cd3MhhXzqO33Vy6lzR4 U9/k9KdJ1kENR8gfdRKxiBTsRxkcE0LFTdySUBPmIeExlE00t/iw/169IF3eYxskcdFDe5 ymmTPoKPSUEmOGSWxpnolvT7Ngwdty5KQb5HzdShLfad2IeycqmAo5Scf8CpSBiM+TPSeF 4JNbWZqKFOT0cFl1qDt6C2Q/TSYsVSFRun1ld1P+Hl7fJ+YcXxaDFpk3T79qCA== From: "Pankaj Raghav (Samsung)" To: Theodore Ts'o , Chao Yu , Jonathan Corbet , willy@infradead.org, Josef Bacik , Johannes Weiner , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Alexander Viro , "Darrick J . Wong" , Zefan Li , Tejun Heo , akpm@linux-foundation.org, Christian Brauner , Andreas Dilger , Jaegeuk Kim , Jan Kara , Chris Mason , David Sterba Cc: cgroups@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, mcgrof@kernel.org, gost.dev@samsung.com, linux-doc@vger.kernel.org, linux-xfs@vger.kernel.org, kernel@pankajraghav.com, Pankaj Raghav Subject: [PATCH] fs/writeback: convert wbc_account_cgroup_owner to take a folio Date: Thu, 26 Sep 2024 16:01:21 +0200 Message-ID: <20240926140121.203821-1-kernel@pankajraghav.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 4XDwHx69cbz9v1R Content-Type: text/plain; charset="utf-8" From: Pankaj Raghav Most of the callers of wbc_account_cgroup_owner() are converting a folio to page before calling the function. wbc_account_cgroup_owner() is converting the page back to a folio to call mem_cgroup_css_from_folio(). Convert wbc_account_cgroup_owner() to take a folio instead of a page, and convert all callers to pass a folio directly except f2fs. Convert the page to folio for all the callers from f2fs as they were the only callers calling wbc_account_cgroup_owner() with a page. As f2fs is already in the process of converting to folios, these call sites might also soon be calling wbc_account_cgroup_owner() with a folio directly in the future. No functional changes. Only compile tested. Signed-off-by: Pankaj Raghav Acked-by: David Sterba Acked-by: Tejun Heo --- Documentation/admin-guide/cgroup-v2.rst | 2 +- fs/btrfs/extent_io.c | 7 +++---- fs/btrfs/inode.c | 2 +- fs/buffer.c | 4 ++-- fs/ext4/page-io.c | 2 +- fs/f2fs/data.c | 9 ++++++--- fs/fs-writeback.c | 8 +++----- fs/iomap/buffered-io.c | 2 +- fs/mpage.c | 2 +- include/linux/writeback.h | 4 ++-- 10 files changed, 21 insertions(+), 21 deletions(-) diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-= guide/cgroup-v2.rst index 69af2173555fb..064012ea6f366 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -2945,7 +2945,7 @@ following two functions. a queue (device) has been associated with the bio and before submission. =20 - wbc_account_cgroup_owner(@wbc, @page, @bytes) + wbc_account_cgroup_owner(@wbc, @folio, @bytes) Should be called for each data segment being written out. While this function doesn't care exactly when it's called during the writeback session, it's the easiest and most diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 39c9677c47d5a..4667d1e034e0e 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -785,7 +785,7 @@ static void submit_extent_folio(struct btrfs_bio_ctrl *= bio_ctrl, } =20 if (bio_ctrl->wbc) - wbc_account_cgroup_owner(bio_ctrl->wbc, &folio->page, + wbc_account_cgroup_owner(bio_ctrl->wbc, folio, len); =20 size -=3D len; @@ -1707,7 +1707,7 @@ static noinline_for_stack void write_one_eb(struct ex= tent_buffer *eb, ret =3D bio_add_folio(&bbio->bio, folio, eb->len, eb->start - folio_pos(folio)); ASSERT(ret); - wbc_account_cgroup_owner(wbc, folio_page(folio, 0), eb->len); + wbc_account_cgroup_owner(wbc, folio, eb->len); folio_unlock(folio); } else { int num_folios =3D num_extent_folios(eb); @@ -1721,8 +1721,7 @@ static noinline_for_stack void write_one_eb(struct ex= tent_buffer *eb, folio_start_writeback(folio); ret =3D bio_add_folio(&bbio->bio, folio, eb->folio_size, 0); ASSERT(ret); - wbc_account_cgroup_owner(wbc, folio_page(folio, 0), - eb->folio_size); + wbc_account_cgroup_owner(wbc, folio, eb->folio_size); wbc->nr_to_write -=3D folio_nr_pages(folio); folio_unlock(folio); } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index edac499fd83d2..eb64f04755c23 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1729,7 +1729,7 @@ static bool run_delalloc_compressed(struct btrfs_inod= e *inode, * need full accuracy. Just account the whole thing * against the first page. */ - wbc_account_cgroup_owner(wbc, &locked_folio->page, + wbc_account_cgroup_owner(wbc, locked_folio, cur_end - start); async_chunk[i].locked_folio =3D locked_folio; locked_folio =3D NULL; diff --git a/fs/buffer.c b/fs/buffer.c index 1fc9a50def0b5..32bd0f4c42236 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2803,7 +2803,7 @@ static void submit_bh_wbc(blk_opf_t opf, struct buffe= r_head *bh, bio->bi_iter.bi_sector =3D bh->b_blocknr * (bh->b_size >> 9); bio->bi_write_hint =3D write_hint; =20 - __bio_add_page(bio, bh->b_page, bh->b_size, bh_offset(bh)); + bio_add_folio_nofail(bio, bh->b_folio, bh->b_size, bh_offset(bh)); =20 bio->bi_end_io =3D end_bio_bh_io_sync; bio->bi_private =3D bh; @@ -2813,7 +2813,7 @@ static void submit_bh_wbc(blk_opf_t opf, struct buffe= r_head *bh, =20 if (wbc) { wbc_init_bio(wbc, bio); - wbc_account_cgroup_owner(wbc, bh->b_page, bh->b_size); + wbc_account_cgroup_owner(wbc, bh->b_folio, bh->b_size); } =20 submit_bio(bio); diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index ad5543866d215..b7b9261fec3b5 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -421,7 +421,7 @@ static void io_submit_add_bh(struct ext4_io_submit *io, io_submit_init_bio(io, bh); if (!bio_add_folio(io->io_bio, io_folio, bh->b_size, bh_offset(bh))) goto submit_and_retry; - wbc_account_cgroup_owner(io->io_wbc, &folio->page, bh->b_size); + wbc_account_cgroup_owner(io->io_wbc, folio, bh->b_size); io->io_next_block++; } =20 diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 94f7b084f6016..e3ce763cce18f 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -711,7 +711,8 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio) } =20 if (fio->io_wbc && !is_read_io(fio->op)) - wbc_account_cgroup_owner(fio->io_wbc, fio->page, PAGE_SIZE); + wbc_account_cgroup_owner(fio->io_wbc, page_folio(fio->page), + PAGE_SIZE); =20 inc_page_count(fio->sbi, is_read_io(fio->op) ? __read_io_type(page) : WB_DATA_TYPE(fio->page, false)); @@ -911,7 +912,8 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio) } =20 if (fio->io_wbc) - wbc_account_cgroup_owner(fio->io_wbc, fio->page, PAGE_SIZE); + wbc_account_cgroup_owner(fio->io_wbc, page_folio(fio->page), + PAGE_SIZE); =20 inc_page_count(fio->sbi, WB_DATA_TYPE(page, false)); =20 @@ -1011,7 +1013,8 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio) } =20 if (fio->io_wbc) - wbc_account_cgroup_owner(fio->io_wbc, fio->page, PAGE_SIZE); + wbc_account_cgroup_owner(fio->io_wbc, page_folio(fio->page), + PAGE_SIZE); =20 io->last_block_in_bio =3D fio->new_blkaddr; =20 diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index d8bec3c1bb1fa..2391b09f4cede 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -890,17 +890,16 @@ EXPORT_SYMBOL_GPL(wbc_detach_inode); /** * wbc_account_cgroup_owner - account writeback to update inode cgroup own= ership * @wbc: writeback_control of the writeback in progress - * @page: page being written out + * @folio: folio being written out * @bytes: number of bytes being written out * - * @bytes from @page are about to written out during the writeback + * @bytes from @folio are about to written out during the writeback * controlled by @wbc. Keep the book for foreign inode detection. See * wbc_detach_inode(). */ -void wbc_account_cgroup_owner(struct writeback_control *wbc, struct page *= page, +void wbc_account_cgroup_owner(struct writeback_control *wbc, struct folio = *folio, size_t bytes) { - struct folio *folio; struct cgroup_subsys_state *css; int id; =20 @@ -913,7 +912,6 @@ void wbc_account_cgroup_owner(struct writeback_control = *wbc, struct page *page, if (!wbc->wb || wbc->no_cgroup_owner) return; =20 - folio =3D page_folio(page); css =3D mem_cgroup_css_from_folio(folio); /* dead cgroups shouldn't contribute to inode ownership arbitration */ if (!(css->flags & CSS_ONLINE)) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 11ea747228aee..3d1fae7d3a64e 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1833,7 +1833,7 @@ static int iomap_add_to_ioend(struct iomap_writepage_= ctx *wpc, if (ifs) atomic_add(len, &ifs->write_bytes_pending); wpc->ioend->io_size +=3D len; - wbc_account_cgroup_owner(wbc, &folio->page, len); + wbc_account_cgroup_owner(wbc, folio, len); return 0; } =20 diff --git a/fs/mpage.c b/fs/mpage.c index b5b5ddf9d513d..82aecf3727437 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -606,7 +606,7 @@ static int __mpage_writepage(struct folio *folio, struc= t writeback_control *wbc, * the confused fail path above (OOM) will be very confused when * it finds all bh marked clean (i.e. it will not write anything) */ - wbc_account_cgroup_owner(wbc, &folio->page, folio_size(folio)); + wbc_account_cgroup_owner(wbc, folio, folio_size(folio)); length =3D first_unmapped << blkbits; if (!bio_add_folio(bio, folio, length, 0)) { bio =3D mpage_bio_submit_write(bio); diff --git a/include/linux/writeback.h b/include/linux/writeback.h index d6db822e4bb30..641a057e04132 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -217,7 +217,7 @@ void wbc_attach_and_unlock_inode(struct writeback_contr= ol *wbc, struct inode *inode) __releases(&inode->i_lock); void wbc_detach_inode(struct writeback_control *wbc); -void wbc_account_cgroup_owner(struct writeback_control *wbc, struct page *= page, +void wbc_account_cgroup_owner(struct writeback_control *wbc, struct folio = *folio, size_t bytes); int cgroup_writeback_by_id(u64 bdi_id, int memcg_id, enum wb_reason reason, struct wb_completion *done); @@ -324,7 +324,7 @@ static inline void wbc_init_bio(struct writeback_contro= l *wbc, struct bio *bio) } =20 static inline void wbc_account_cgroup_owner(struct writeback_control *wbc, - struct page *page, size_t bytes) + struct folio *folio, size_t bytes) { } =20 base-commit: 92fc9636d1471b7f68bfee70c776f7f77e747b97 --=20 2.44.1