From nobody Mon Feb 9 14:15:18 2026 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (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 C5B0925A640; Tue, 3 Feb 2026 06:30:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770100220; cv=none; b=DB7fbaclG9+UQAD5A6KnZq6zYb3Vlxjy5tVXNYbBVpJdfQnEhpvLrPSJ/e9Th9eaJaJRzaQoqXGseswDzQbaaZUEmsOjJZLVC6Rju366+798tkFwGwFK9MISZ+rOEgzY3RWPe9XURxz5Ii5ME3b9VF9oU5jTywR5+m/1OqT3IcE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770100220; c=relaxed/simple; bh=/NaDFenwVQi21L1j17CQX/ddh2aX70Zgs+yP1ob/gsc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OVoHiDQwC4nkMPcJIaYDdx5ucUp8v1KelZKcD8TgoMjd6Fnw060UQoHqXziyAtjgmYm7cJozFz88TrijSkItWok9K2ijXq53HymalH9IB0JbI+Yju09I+9N8t8s4KY3DPRiVKuuKECcwXmC9C/usimPXtF1q7ZkWZZPlQRoTQNs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.170]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4f4trJ39kMzKHMYY; Tue, 3 Feb 2026 14:29:52 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id BB65A40570; Tue, 3 Feb 2026 14:30:13 +0800 (CST) Received: from huaweicloud.com (unknown [10.50.85.155]) by APP4 (Coremail) with SMTP id gCh0CgAHaPjnlYFpiadbGA--.27803S5; Tue, 03 Feb 2026 14:30:13 +0800 (CST) From: Zhang Yi To: linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz, ojaswin@linux.ibm.com, ritesh.list@gmail.com, hch@infradead.org, djwong@kernel.org, yi.zhang@huawei.com, yi.zhang@huaweicloud.com, yizhang089@gmail.com, libaokun1@huawei.com, yangerkun@huawei.com, yukuai@fnnas.com Subject: [PATCH -next v2 01/22] ext4: make ext4_block_zero_page_range() pass out did_zero Date: Tue, 3 Feb 2026 14:25:01 +0800 Message-ID: <20260203062523.3869120-2-yi.zhang@huawei.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260203062523.3869120-1-yi.zhang@huawei.com> References: <20260203062523.3869120-1-yi.zhang@huawei.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-CM-TRANSID: gCh0CgAHaPjnlYFpiadbGA--.27803S5 X-Coremail-Antispam: 1UD129KBjvJXoWxCFW7GrW7Gw4DXr4kXrWDArb_yoW5tr1Upr y5tw45ur47u34q9F4xWF12qr1Skwn3GFW8W343G3s0v34IqF1xtF95K3ZYvF4jg3y7Xay0 qF4Yy3y2gr1UJrJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUHYb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUGw A2048vs2IY020Ec7CjxVAFwI0_Gr0_Xr1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV W8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMc Ij6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_ Jr0_Gr1lF7xvr2IYc2Ij64vIr41lF7Iv64x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YV CY1x02628vn2kIc2xKxwCY1x0262kKe7AKxVWUtVW8ZwCF04k20xvY0x0EwIxGrwCF04k2 0xvEw4C26cxK6c8Ij28IcwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r 1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij 64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr 0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF 0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07jnWrAUUUUU= Sender: yi.zhang@huaweicloud.com X-CM-SenderInfo: d1lo6xhdqjqx5xdzvxpfor3voofrz/ Content-Type: text/plain; charset="utf-8" Modify ext4_block_zero_page_range() to pass out the did_zero parameter. This parameter is set to true once a partial block has been zeroed out. This change prepares for moving ordered data handling out of __ext4_block_zero_page_range(), which is being adapted for the conversion of the block zero range to the iomap infrastructure. Signed-off-by: Zhang Yi --- fs/ext4/inode.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index da96db5f2345..759a2a031a9d 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4030,7 +4030,8 @@ void ext4_set_aops(struct inode *inode) * racing writeback can come later and flush the stale pagecache to disk. */ static int __ext4_block_zero_page_range(handle_t *handle, - struct address_space *mapping, loff_t from, loff_t length) + struct address_space *mapping, loff_t from, loff_t length, + bool *did_zero) { unsigned int offset, blocksize, pos; ext4_lblk_t iblock; @@ -4118,6 +4119,8 @@ static int __ext4_block_zero_page_range(handle_t *han= dle, err =3D ext4_jbd2_inode_add_write(handle, inode, from, length); } + if (!err && did_zero) + *did_zero =3D true; =20 unlock: folio_unlock(folio); @@ -4133,7 +4136,8 @@ static int __ext4_block_zero_page_range(handle_t *han= dle, * that corresponds to 'from' */ static int ext4_block_zero_page_range(handle_t *handle, - struct address_space *mapping, loff_t from, loff_t length) + struct address_space *mapping, loff_t from, loff_t length, + bool *did_zero) { struct inode *inode =3D mapping->host; unsigned blocksize =3D inode->i_sb->s_blocksize; @@ -4147,10 +4151,11 @@ static int ext4_block_zero_page_range(handle_t *han= dle, length =3D max; =20 if (IS_DAX(inode)) { - return dax_zero_range(inode, from, length, NULL, + return dax_zero_range(inode, from, length, did_zero, &ext4_iomap_ops); } - return __ext4_block_zero_page_range(handle, mapping, from, length); + return __ext4_block_zero_page_range(handle, mapping, from, length, + did_zero); } =20 /* @@ -4173,7 +4178,7 @@ static int ext4_block_truncate_page(handle_t *handle, blocksize =3D i_blocksize(inode); length =3D blocksize - (from & (blocksize - 1)); =20 - return ext4_block_zero_page_range(handle, mapping, from, length); + return ext4_block_zero_page_range(handle, mapping, from, length, NULL); } =20 int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode, @@ -4196,13 +4201,13 @@ int ext4_zero_partial_blocks(handle_t *handle, stru= ct inode *inode, if (start =3D=3D end && (partial_start || (partial_end !=3D sb->s_blocksize - 1))) { err =3D ext4_block_zero_page_range(handle, mapping, - lstart, length); + lstart, length, NULL); return err; } /* Handle partial zero out on the start of the range */ if (partial_start) { - err =3D ext4_block_zero_page_range(handle, mapping, - lstart, sb->s_blocksize); + err =3D ext4_block_zero_page_range(handle, mapping, lstart, + sb->s_blocksize, NULL); if (err) return err; } @@ -4210,7 +4215,7 @@ int ext4_zero_partial_blocks(handle_t *handle, struct= inode *inode, if (partial_end !=3D sb->s_blocksize - 1) err =3D ext4_block_zero_page_range(handle, mapping, byte_end - partial_end, - partial_end + 1); + partial_end + 1, NULL); return err; } =20 --=20 2.52.0