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 AF95043F4D7 for ; Wed, 12 Aug 2026 12:20:15 +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=1786537217; cv=none; b=nb6VRrbaBU//jipKUzHZYqpyORYHOwasDhGpNZv9wvMLHS7st+XdpIhrsipRYyv4ZBWAfavrfo1J9U1BDI7kgIYLqS1SuLEfYLMpn5Fc47Z2PErUcSQT8MuNhMaH7lVgQDn1VdObLrgix7a7POKoStqoze9XgPE5z3Jet/4P9nA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786537217; c=relaxed/simple; bh=Jcp0LXEfq/Qo94AMZD+TFbznfZ3ykS9M2U1XK9UIES8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fVIdxrdR1FD9dl+OyRuFLkiY0gEFUnO5PprM9imfWPE7ahcUyeXg7P+qCKL8Ni1oENIZV94d05/IJAYav907rOhYdwiHMflUEfhmcVqx2+Br4EB/0zMMp2Md8HyIjn0Ol3KF5eTKj69RIJJP64OPyAT2tLc7qfauAIsCkOREi+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=n+6DiXwF; 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="n+6DiXwF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9AB51F00A3E; Wed, 12 Aug 2026 12:20:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786537215; bh=OB1LgUDO6q+Z1e27+rQDO3GVOn3HYn1EGE7refovvZI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=n+6DiXwFDXDlspjMb/a4ZIZH4dtZrBtvFnvq8QdN+aNZiINm7FiGk6CMa7OShnfXu 4DFvPdUYfPrpeXcDRuPUjZM1LZDNd36Sov2I3J2NabFsnShPoLcaLARNmkIkfeZUHW fxOoqZ+aO+rr8Nj9bWAeld/dP2/+jR7ZlhJmbOwm2XGZccjl2hnz8X5PrcfcAB9VCc 0Tj2VxHZ1Uxik5CaSbBPx/qnAUQTKzYTZaB/XMVI+0XL7rlDF74YRSyns9OwHFh6zy QcPDcyDWdDuJNtLEBEzM3F5aaT+J/QrCbmirg7gbzXHfJwZ0SAf9RfyWa+T6yKEoHY pAr0TM5wejkoQ== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH 2/2] f2fs: fix to avoid pinfile fragment on fragment:{block,segment} mode Date: Wed, 12 Aug 2026 12:20:08 +0000 Message-ID: <20260812122008.281434-2-chao@kernel.org> X-Mailer: git-send-email 2.55.0.679.g6767b8d81c-goog In-Reply-To: <20260812122008.281434-1-chao@kernel.org> References: <20260812122008.281434-1-chao@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit pinfile fallocate() conflicts w/ mode=fragment:{block,segment} mount option, result in fragment blocks in pinfile, it violate semantics of pinfile introduced in commit f5a53edcf01e ("f2fs: support aligned pinned file"). mkfs.f2fs -f /dev/vdb mount -t f2fs -o mode=fragment:block /dev/vdb /mnt/f2fs/ dd if=/dev/zero of=/mnt/f2fs/file bs=1M count=3900 sync touch /mnt/f2fs/pinfile f2fs_io pinfile set /mnt/f2fs/pinfile f2fs_io fallocate 0 0 $((1024*1024*16)) /mnt/f2fs/pinfile sync f2fs_io fiemap 0 $((1024*1024*16)) /mnt/f2fs/pinfile [Before] fallocate failed: No space left on device Fiemap: offset = 0 len = 16777216 logical addr. physical addr. length flags 0 0000000000000000 00000000d7200000 0000000000004000 00001000 1 0000000000004000 00000000d7207000 0000000000001000 00001000 2 0000000000005000 00000000d720c000 0000000000002000 00001000 3 0000000000007000 00000000d7211000 0000000000001000 00001000 4 0000000000008000 00000000d7214000 0000000000001000 00001000 5 0000000000009000 00000000d7218000 0000000000001000 00001000 6 000000000000a000 00000000d721d000 0000000000001000 00001000 7 000000000000b000 00000000d721f000 0000000000004000 00001000 ... 96 00000000000f1000 00000000d73e9000 0000000000004000 00001000 97 00000000000f5000 00000000d73f1000 0000000000003000 00001000 98 00000000000f8000 00000000d73f5000 0000000000004000 00001000 99 00000000000fc000 00000000d73fa000 0000000000001000 00001000 100 00000000000fd000 00000000d73ff000 0000000000001000 00001001 [After] fallocated a file: i_size=16777216, i_blocks=32808 Fiemap: offset = 0 len = 16777216 logical addr. physical addr. length flags 0 0000000000000000 0000000018a00000 0000000000400000 00001000 1 0000000000400000 0000000019000000 0000000000400000 00001000 2 0000000000800000 0000000032400000 0000000000200000 00001000 3 0000000000a00000 0000000038000000 0000000000200000 00001000 4 0000000000c00000 0000000039c00000 0000000000200000 00001000 5 0000000000e00000 0000000044c00000 0000000000200000 00001001 Let's ignore mode=fragment:{block,segment} mount option while fallocate() on pinfile. Fixes: 6691d940b0e0 ("f2fs: introduce fragment allocation mode mount option") Signed-off-by: Chao Yu --- fs/f2fs/f2fs.h | 15 +++++++++++---- fs/f2fs/gc.c | 2 +- fs/f2fs/segment.c | 8 ++++---- fs/f2fs/super.c | 4 ++-- 4 files changed, 18 insertions(+), 11 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 069fe6537160..1b96d8718c5c 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -4146,19 +4146,26 @@ static inline struct inode *fio_inode(struct f2fs_io_info *fio) #define MIN_FRAGMENT_SIZE 1 #define MAX_FRAGMENT_SIZE 512 -static inline bool f2fs_need_rand_blk(struct f2fs_sb_info *sbi) +static inline bool f2fs_need_rand_blk(struct f2fs_sb_info *sbi, + enum log_type type) { + if (type == CURSEG_COLD_DATA_PINNED) + return false; return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK; } -static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi) +static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi, + enum log_type type) { + if (type == CURSEG_COLD_DATA_PINNED) + return false; return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG; } -static inline bool f2fs_need_rand_seg_blk(struct f2fs_sb_info *sbi) +static inline bool f2fs_need_rand_seg_blk(struct f2fs_sb_info *sbi, + enum log_type type) { - return f2fs_need_rand_blk(sbi) || f2fs_need_rand_seg(sbi); + return f2fs_need_rand_blk(sbi, type) || f2fs_need_rand_seg(sbi, type); } /* diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index e6758adc5da1..c4da2f31805b 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -310,7 +310,7 @@ static void select_policy(struct f2fs_sb_info *sbi, int gc_type, p->max_search = sbi->max_victim_search; /* let's select beginning hot/small space first. */ - if (f2fs_need_rand_seg_blk(sbi)) { + if (f2fs_need_rand_seg_blk(sbi, type)) { p->offset = get_random_u32_below(MAIN_SECS(sbi) * SEGS_PER_SEC(sbi)); SIT_I(sbi)->last_victim[p->gc_mode] = p->offset; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 9e0b6776341c..f4ec1b743ccd 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -3055,7 +3055,7 @@ static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type) sanity_check_seg_type(sbi, seg_type); if (__is_large_section(sbi)) { - if (f2fs_need_rand_seg_blk(sbi)) { + if (f2fs_need_rand_seg_blk(sbi, type)) { unsigned int hint = GET_SEC_FROM_SEG(sbi, curseg->segno); if (GET_SEC_FROM_SEG(sbi, curseg->segno + 1) != hint) @@ -3064,7 +3064,7 @@ static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type) GET_SEG_FROM_SEC(sbi, hint + 1) - 1); } return curseg->segno; - } else if (f2fs_need_rand_seg_blk(sbi)) { + } else if (f2fs_need_rand_seg_blk(sbi, type)) { return get_random_u32_below(MAIN_SECS(sbi) * SEGS_PER_SEC(sbi)); } @@ -3120,7 +3120,7 @@ static int new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec) curseg->next_segno = segno; reset_curseg(sbi, type, 1); curseg->alloc_type = LFS; - if (f2fs_need_rand_blk(sbi)) + if (f2fs_need_rand_blk(sbi, type)) curseg->fragment_remained_chunk = get_random_u32_inclusive(1, sbi->max_fragment_chunk); return 0; @@ -3939,7 +3939,7 @@ int f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct folio *folio, curseg->next_blkoff = f2fs_find_next_ssr_block(sbi, curseg); } else { curseg->next_blkoff++; - if (f2fs_need_rand_blk(sbi)) + if (f2fs_need_rand_blk(sbi, type)) f2fs_randomize_chunk(sbi, curseg); } if (curseg->next_blkoff >= f2fs_usable_blks_in_seg(sbi, curseg->segno)) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 8dd656a7d3dc..0c8f60b7242f 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2457,9 +2457,9 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, "adaptive"); else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS) seq_puts(seq, "lfs"); - else if (f2fs_need_rand_seg(sbi)) + else if (f2fs_need_rand_seg(sbi, NO_CHECK_TYPE)) seq_puts(seq, "fragment:segment"); - else if (f2fs_need_rand_blk(sbi)) + else if (f2fs_need_rand_blk(sbi, NO_CHECK_TYPE)) seq_puts(seq, "fragment:block"); seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs); if (test_opt(sbi, RESERVE_ROOT) || test_opt(sbi, RESERVE_NODE)) -- 2.49.0