From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 4AE6942A15B for ; Wed, 12 Aug 2026 12:18:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786537085; cv=none; b=KHGnnM/8W5rRtQflUJ4FbV/Iro31rVVdDGxJGsAHyyG0JfRAbE1uLLaTRD+36SEElHdZJyOsEv9eauLV5yYHmcfOl793VeN3BKGgKWVaxKpeuWmbt5P5tR8ARnPFl3Wv0yjALsKD17IcQ73XbtRYg5Fe4g4aLAD+Kmmrjkjouhc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786537085; c=relaxed/simple; bh=Pb+Xtk2uYc/Qt4z2RL/rtAE56wRx5SAcV+JcLJj9pzE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hhn8KhQU2bDPBsAWGxnQkNPhdbitlBh15kLpwDZ+kxZtdo8sCzHDF7LaNohQ1NKa2ZBspeSNGTMPQwjfzCo582KFTOm1bCeLJtPvicMYzzcNyLzAM6h0JlxoezP+bewD8YKoCTCuMyE8l0vbhd4SYgj44/w+We95T3NADnQXS/E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=E1P/rklE; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="E1P/rklE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CB9F1F00A3A; Wed, 12 Aug 2026 12:18:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786537083; bh=F7Rb/IuS1/cQ34T0X2Sx883FQVxNT9O2jDA7236oBW0=; h=From:To:Cc:Subject:Date; b=E1P/rklEqY8l31UM2UXN1uSS9Cfh39t/h3qlehv379wiB1L1GP1v5PVT7NiqzJ5Tv n1uByxiWrY5Ddmk+fzAPeFIjzlaCXsGqtSkdXHt5788pz2SNG2M325LWQtbQ3UuvqK zQaNrjMXqpn89EXwKiLPyv0+qL+vq52wQn/3j6J+iYkf+SNiqMpGSXUsqzV2zGQnEj UFIHzMK9Khzk3Nq75kTkTQQgpXZW3LB6L14bO6HRXUT1tV31AvxG8uK+Gsl1scC4z2 8LlGvoGCYo9vemryToYbqS+Jh96cfxVG0ERgGQLmgubC113XvbKLnfEMExpbbWQc88 0GfJwIkwMtTZQ== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu , stable@kernel.org, Daeho Jeong Subject: [PATCH 1/2] f2fs: fix to reclaim space in f2fs_allocate_pinning_section() Date: Wed, 12 Aug 2026 12:17:54 +0000 Message-ID: <20260812121756.278690-1-chao@kernel.org> X-Mailer: git-send-email 2.55.0.679.g6767b8d81c-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit It needs to trigger checkpoint to free space reclaimed by f2fs_gc_range(), otherwise, fallocate() on pinfile will fail easily even there is slash space in conventional zone. [Testcase] nullblk_create.sh 512 2 1024 1024 mkfs.f2fs /dev/nullb0 -f -m mount /dev/nullb0 /mnt/f2fs/ touch /mnt/f2fs/pinfile f2fs_io pinfile set /mnt/f2fs/pinfile mkdir /mnt/f2fs/dir/ for((i=0;i<3934;i++)) do { dd if=/dev/zero of=/mnt/f2fs/dir/$i bs=1M count=1;} done sync for((i=0;i<3934;i+=2)) do { rm /mnt/f2fs/dir/$i;} done for((i=0;i<1950;i++)) do { rm /mnt/f2fs/dir/$i;} done sync f2fs_io fallocate 0 0 $((1024*1024*1024)) /mnt/f2fs/pinfile sync stat /mnt/f2fs/pinfile f2fs_io fiemap 0 $((1024*1024*1024)) /mnt/f2fs/pinfile [Before] fallocate failed: Resource temporarily unavailable File: /mnt/f2fs/pinfile Size: 109051904 Blocks: 213208 IO Block: 4096 regular file Device: 250,0 Inode: 4 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2026-08-12 20:04:02.264000000 +0800 Modify: 2026-08-12 20:04:26.784000000 +0800 Change: 2026-08-12 20:04:26.784000000 +0800 Birth: - root@localhost:~# root@localhost:~# root@localhost:~# root@localhost:~# f2fs_io fiemap 0 $((1024*1024*1024)) /mnt/f2fs/pinfile Fiemap: offset = 0 len = 1073741824 logical addr. physical addr. length flags 0 0000000000000000 0000000002e00000 0000000000200000 00001000 1 0000000000200000 000000002dc00000 0000000000400000 00001000 2 0000000000600000 000000002e400000 0000000000600000 00001000 3 0000000000c00000 000000007a400000 0000000005c00000 00001001 [After] File: /mnt/f2fs/pinfile Size: 1073741824 Blocks: 2099216 IO Block: 4096 regular file Device: 250,0 Inode: 4 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2026-08-12 19:47:49.428000000 +0800 Modify: 2026-08-12 19:49:06.808000000 +0800 Change: 2026-08-12 19:49:06.808000000 +0800 Birth: - Fiemap: offset = 0 len = 1073741824 logical addr. physical addr. length flags 0 0000000000000000 0000000002e00000 0000000000200000 00001000 1 0000000000200000 000000003aa00000 0000000000400000 00001000 2 0000000000600000 000000003b400000 0000000000200000 00001000 3 0000000000800000 000000007a200000 0000000005e00000 00001000 4 0000000006600000 0000000002800000 0000000000200000 00001000 5 0000000006800000 0000000003200000 0000000000400000 00001000 6 0000000006c00000 0000000003000000 0000000000200000 00001000 7 0000000006e00000 0000000003600000 0000000037200000 00001000 8 000000003e000000 000000003b200000 0000000000200000 00001000 9 000000003e200000 000000003a800000 0000000000200000 00001000 10 000000003e400000 000000003ae00000 0000000000400000 00001000 11 000000003e800000 000000003b600000 0000000001800000 00001001 Cc: stable@kernel.org Fixes: 9703d69d9d15 ("f2fs: support file pinning for zoned devices") Cc: Daeho Jeong Signed-off-by: Chao Yu --- fs/f2fs/segment.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index f6687ccfc745..0b3b2fe40847 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -3480,10 +3480,13 @@ int f2fs_allocate_pinning_section(struct f2fs_sb_info *sbi) err = f2fs_gc_range(sbi, 0, sbi->first_seq_zone_segno - 1, true, ZONED_PIN_SEC_REQUIRED_COUNT); f2fs_up_write_trace(&sbi->gc_lock, &lc); - - gc_required = false; - if (!err) + if (err) + return err; + err = f2fs_sync_fs(sbi->sb, 1); + if (!err) { + gc_required = false; goto retry; + } } return err; -- 2.49.0