Jaegeuk Kim 1603a3d1de mkfs.f2fs: wipe other FS magics given -f ... This patch fixes the below stale magic info. $ mkfs.btrfs -f test.img btrfs-progs v5.10.1 See http://btrfs.wiki.kernel.org for more information. Label: (null) UUID: 941d2db7-3ece-4090-8b22-c4ea548b5dae Node size: 16384 Sector size: 4096 Filesystem size: 1.00GiB Block group profiles: Data: single 8.00MiB Metadata: DUP 51.19MiB System: DUP 8.00MiB SSD detected: no Incompat features: extref, skinny-metadata Runtime features: Checksum: crc32c Number of devices: 1 Devices: ID SIZE PATH 1 1.00GiB test.img $ hexdump -s 0x10000 -n 128 -C test.img 00010000 81 29 94 0a 00 00 00 00 00 00 00 00 00 00 00 00 |.)..............| 00010010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00010020 94 1d 2d b7 3e ce 40 90 8b 22 c4 ea 54 8b 5d ae |..-.>.@.."..T.].| 00010030 00 00 01 00 00 00 00 00 01 00 00 00 00 00 00 00 |................| 00010040 5f 42 48 52 66 53 5f 4d 05 00 00 00 00 00 00 00 |_BHRfS_M........| 00010050 00 40 d2 01 00 00 00 00 00 40 50 01 00 00 00 00 |.@.......@P.....| 00010060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00010070 00 00 00 40 00 00 00 00 00 00 02 00 00 00 00 00 |...@............| 00010080 $ mkfs.f2fs -t 0 -f test.img F2FS-tools: mkfs.f2fs Ver: 1.14.0 (2020-12-28) Info: Disable heap-based policy Info: Debug level = 0 Info: Trim is disabled Info: Segments per section = 1 Info: Sections per zone = 1 Info: sector size = 512 Info: total sectors = 2097152 (1024 MB) Info: zone aligned segment0 blkaddr: 512 Info: format version with "Linux version 5.10.46-4rodete1-amd64 (glinux-team@google.com) (gcc-10 (Debian 10.2.1-6+build2) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.46-4rodete1 (2021-08-20)" Info: Overprovision ratio = 6.360% Info: Overprovision segments = 68 (GC reserved = 39) Info: format successful $hexdump -s 0x10000 -n 128 -C test.img 00010000 c2 8a c8 26 00 00 00 00 00 00 00 00 00 00 00 00 |...&............| 00010010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00010020 92 ab 3f c6 b7 82 49 5e 93 23 e8 c9 e9 45 7d ac |..?...I^.#...E}.| 00010030 00 00 01 00 00 00 00 00 01 00 00 00 00 00 00 00 |................| 00010040 5f 42 48 52 66 53 5f 4d 05 00 00 00 00 00 00 00 |_BHRfS_M........| 00010050 00 40 d2 01 00 00 00 00 00 40 50 01 00 00 00 00 |.@.......@P.....| 00010060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00010070 00 00 00 40 00 00 00 00 00 00 02 00 00 00 00 00 |...@............| 00010080 --- After this patch --- $ mkfs.f2fs -t 0 -f test.img F2FS-tools: mkfs.f2fs Ver: 1.14.0 (2020-12-28) Info: Disable heap-based policy Info: Debug level = 0 Info: Trim is disabled test.img appears to contain an existing filesystem (btrfs). Info: Segments per section = 1 Info: Sections per zone = 1 Info: sector size = 512 Info: total sectors = 2097152 (1024 MB) Info: zone aligned segment0 blkaddr: 512 Info: format version with "Linux version 5.10.46-4rodete1-amd64 (glinux-team@google.com) (gcc-10 (Debian 10.2.1-6+build2) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.46-4rodete1 (2021-08-20)" Info: Overprovision ratio = 6.360% Info: Overprovision segments = 68 (GC reserved = 39) Info: format successful $ hexdump -s 0x10000 -n 128 -C test.img 00010000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00010080 Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>		2021-09-20 16:23:43 -07:00
..
android_config.h	f2fs_io: change fibmap to fiemap	2020-12-07 09:25:12 -08:00
f2fs_fs.h	mkfs.f2fs: wipe other FS magics given -f	2021-09-20 16:23:43 -07:00
quota.h	f2fs-tools: change to use #pragma pack(push, 1)	2018-04-03 00:10:08 -07:00