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 357134BFE74 for ; Fri, 9 Oct 2026 10:59:13 +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=1791543561; cv=none; b=ZJLnC737GiGwW4e86QPE3aiFppXsRnCuPERwini6fRoiR9kw8p+bGDxTiw1ZT2wJNGcJXwK8zkDgO4B3pg+FEBtSiEihJ8S6jvxS4coYqDz5WNsYL/OuhvcJe+ctnjsLoParXzgYv1XNigAKrOSE0rgonP1CXgpWxKOIpQ3r65s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791543561; c=relaxed/simple; bh=a0jEwFQDeKtuY0RsGtBE4XNL+Pk7zbDs/waQJ4hgjJ0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YQvv/K9ZNCSPFZsVZpXemzdYbSAbvxp50pf6ZDLMKPO4qh85p6Buu7zSGOULJe0+4M9yhNbToWV7wmsSwa+9zzwFwtlEGzw8vjpY12CKSuRhQKSdKI2+x79ZbvCmiWVQn/b3Nct14tKkmheCXBBPpRKbA2/V5e467PLGEGsPQnc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=b7Efk1gV; 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="b7Efk1gV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9C031F000FF; Fri, 9 Oct 2026 10:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791543552; bh=tfLCHx9ts12uhEo+xZi32GpJWOlrmmwc1JfHCdulA5Q=; h=From:To:Cc:Subject:Date; b=b7Efk1gVNdB9Mbiz1g42TNzSLLEpP7Hc5khsdGD/ZOIDvcotapl6vHxyzGzdqAT06 NavdGBI45bvfM65QiTd6LZGP65uPp2QG9SJYyiM5m3bV1uCud3t9NrcChOeL55AmeA FS5MEqWlQqAyutE8LS+OcJCH41QWlFd/flL87whfdRbUVgTZuPgO4eBwgCxOC0WD4p /4+DipKaRjaSOs3flQytNK3tMPqYj8wwieU67sXTe62uWOMsFiv+DqTlNqxV5QFdmn bdxO2Erp0H+8AX4/GZTAKHIZx7/NIO45DJgayPWA1p4PKZxYGs8CFbIarxCRFLr8k/ TTZC9F/mLi3tg== 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 6.12.y 1/3] f2fs: fix to reclaim space in f2fs_allocate_pinning_section() Date: Fri, 9 Oct 2026 10:59:04 +0000 Message-ID: <20261009105906.1861478-1-chao@kernel.org> X-Mailer: git-send-email 2.56.0.385.gd3acb90ef8-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 From: Chao Yu [ Upstream commit fa487f56efba6344aef67d871688f0908fe08af3 ] 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 Signed-off-by: Jaegeuk Kim [ Chao Yu: backport to 6.12.y: - retain existing f2fs_up_write(&sbi->gc_lock) as 6.12 lacks lock tracing ] 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 30ea0b7fb1fb..328799ec670d 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -3267,10 +3267,13 @@ 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(&sbi->gc_lock); - - 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