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    Contents of /trunk/busybox/patches/busybox-1.20.2-f2fs.patch

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    Revision 2125 - (show annotations) (download)
    Tue Mar 19 19:52:33 2013 UTC (11 years, 1 month ago) by niro
    File size: 6268 byte(s) 
    -add f2fs support to volumeid
    1 diff -Naur busybox-1.20.2/util-linux/Config.src busybox-1.20.2-magellan/util-linux/Config.src
    2 --- busybox-1.20.2/util-linux/Config.src 2012-06-26 13:35:45.000000000 +0000
    3 +++ busybox-1.20.2-magellan/util-linux/Config.src 2013-03-19 21:59:32.917000000 +0000
    4 @@ -762,6 +762,16 @@
    5 help
    6 TODO
    7
    8 +config FEATURE_VOLUMEID_F2FS
    9 + bool "f2fs filesystem"
    10 + default y
    11 + depends on VOLUMEID
    12 + help
    13 + F2FS (aka Flash-Friendly File System) is a log-structured file system,
    14 + which is adapted to newer forms of storage. F2FS also remedies some
    15 + known issues of the older log structured file systems, such as high
    16 + cleaning overhead.
    17 +
    18 config FEATURE_VOLUMEID_NTFS
    19 bool "ntfs filesystem"
    20 default y
    21 diff -Naur busybox-1.20.2/util-linux/volume_id/f2fs.c busybox-1.20.2-magellan/util-linux/volume_id/f2fs.c
    22 --- busybox-1.20.2/util-linux/volume_id/f2fs.c 1970-01-01 00:00:00.000000000 +0000
    23 +++ busybox-1.20.2-magellan/util-linux/volume_id/f2fs.c 2013-03-19 21:54:19.100000000 +0000
    24 @@ -0,0 +1,81 @@
    25 +/*
    26 + * volume_id - reads filesystem label and uuid
    27 + *
    28 + * Copyright (C) 2012 S-G Bergh <sgb@systemasis.org>
    29 + *
    30 + * Licensed under GPLv2, see file LICENSE in this source tree.
    31 + */
    32 +
    33 +#include "volume_id_internal.h"
    34 +
    35 +#define F2FS_MAGIC 0xF2F52010 // F2FS Magic Number
    36 +#define F2FS_UUID_SIZE 16
    37 +#define F2FS_LABEL_SIZE 512
    38 +#define F2FS_LABEL_BYTES 1024
    39 +#define F2FS_SB1_OFFSET 0x400 // offset for 1:st super block
    40 +/*
    41 +#define F2FS_SB2_OFFSET 0x1400 // offset for 2:nd super block
    42 +*/
    43 +
    44 +struct f2fs_super_block { // According to version 1.1
    45 +/* 0x00 */ uint32_t magic; // Magic Number
    46 +/* 0x04 */ uint16_t major_ver; // Major Version
    47 +/* 0x06 */ uint16_t minor_ver; // Minor Version
    48 +/* 0x08 */ uint32_t log_sectorsize; // log2 sector size in bytes
    49 +/* 0x0C */ uint32_t log_sectors_per_block; // log2 # of sectors per block
    50 +/* 0x10 */ uint32_t log_blocksize; // log2 block size in bytes
    51 +/* 0x14 */ uint32_t log_blocks_per_seg; // log2 # of blocks per segment
    52 +/* 0x18 */ uint32_t segs_per_sec; // # of segments per section
    53 +/* 0x1C */ uint32_t secs_per_zone; // # of sections per zone
    54 +/* 0x20 */ uint32_t checksum_offset; // checksum offset inside super block
    55 +/* 0x24 */ uint64_t block_count; // total # of user blocks
    56 +/* 0x2C */ uint32_t section_count; // total # of sections
    57 +/* 0x30 */ uint32_t segment_count; // total # of segments
    58 +/* 0x34 */ uint32_t segment_count_ckpt; // # of segments for checkpoint
    59 +/* 0x38 */ uint32_t segment_count_sit; // # of segments for SIT
    60 +/* 0x3C */ uint32_t segment_count_nat; // # of segments for NAT
    61 +/* 0x40 */ uint32_t segment_count_ssa; // # of segments for SSA
    62 +/* 0x44 */ uint32_t segment_count_main; // # of segments for main area
    63 +/* 0x48 */ uint32_t segment0_blkaddr; // start block address of segment 0
    64 +/* 0x4C */ uint32_t cp_blkaddr; // start block address of checkpoint
    65 +/* 0x50 */ uint32_t sit_blkaddr; // start block address of SIT
    66 +/* 0x54 */ uint32_t nat_blkaddr; // start block address of NAT
    67 +/* 0x58 */ uint32_t ssa_blkaddr; // start block address of SSA
    68 +/* 0x5C */ uint32_t main_blkaddr; // start block address of main area
    69 +/* 0x60 */ uint32_t root_ino; // root inode number
    70 +/* 0x64 */ uint32_t node_ino; // node inode number
    71 +/* 0x68 */ uint32_t meta_ino; // meta inode number
    72 +/* 0x6C */ uint8_t uuid[F2FS_UUID_SIZE]; // 128-bit uuid for volume
    73 +/* 0x7C */ uint16_t volume_name[F2FS_LABEL_SIZE]; // volume name
    74 +//* 0x47C */ uint32_t extension_count; // # of extensions below
    75 +//* 0x480 */ uint8_t extension_list[64][8]; // extension array
    76 +} PACKED;
    77 +
    78 +
    79 +int FAST_FUNC volume_id_probe_f2fs(struct volume_id *id /*,uint64_t off*/)
    80 +{
    81 + struct f2fs_super_block *sb;
    82 +
    83 + // Go for primary super block (ignore second sb)
    84 + dbg("f2fs: probing at offset 0x%x", F2FS_SB1_OFFSET);
    85 + sb = volume_id_get_buffer(id, F2FS_SB1_OFFSET, sizeof(*sb));
    86 +
    87 + if (!sb)
    88 + return -1;
    89 +
    90 + if (sb->magic != cpu_to_le32(F2FS_MAGIC))
    91 + return -1;
    92 +
    93 + IF_FEATURE_BLKID_TYPE(id->type = "f2fs");
    94 +
    95 + // For version 1.0 we cannot know the correct sb structure...
    96 + if (le16_to_cpu(sb->major_ver) == 1 && le16_to_cpu(sb->minor_ver) == 0)
    97 + return 0;
    98 +
    99 + volume_id_set_label_unicode16(id, (uint8_t *)sb->volume_name,
    100 + LE, MIN(F2FS_LABEL_BYTES, VOLUME_ID_LABEL_SIZE));
    101 +
    102 + volume_id_set_uuid(id, sb->uuid, UUID_DCE);
    103 +
    104 + return 0;
    105 +}
    106 diff -Naur busybox-1.20.2/util-linux/volume_id/Kbuild.src busybox-1.20.2-magellan/util-linux/volume_id/Kbuild.src
    107 --- busybox-1.20.2/util-linux/volume_id/Kbuild.src 2012-06-26 13:35:45.000000000 +0000
    108 +++ busybox-1.20.2-magellan/util-linux/volume_id/Kbuild.src 2013-03-19 22:01:09.378000000 +0000
    109 @@ -31,6 +31,7 @@
    110 ### lib-$(CONFIG_FEATURE_VOLUMEID_LVM) += lvm.o
    111 ### lib-$(CONFIG_FEATURE_VOLUMEID_MAC) += mac.o
    112 ### lib-$(CONFIG_FEATURE_VOLUMEID_MSDOS) += msdos.o
    113 +lib-$(CONFIG_FEATURE_VOLUMEID_F2FS) += f2fs.o
    114 lib-$(CONFIG_FEATURE_VOLUMEID_NTFS) += ntfs.o
    115 lib-$(CONFIG_FEATURE_VOLUMEID_REISERFS) += reiserfs.o
    116 lib-$(CONFIG_FEATURE_VOLUMEID_UDF) += udf.o
    117 diff -Naur busybox-1.20.2/util-linux/volume_id/volume_id.c busybox-1.20.2-magellan/util-linux/volume_id/volume_id.c
    118 --- busybox-1.20.2/util-linux/volume_id/volume_id.c 2012-06-26 13:35:45.000000000 +0000
    119 +++ busybox-1.20.2-magellan/util-linux/volume_id/volume_id.c 2013-03-19 22:03:37.937000000 +0000
    120 @@ -130,6 +130,9 @@
    121 #if ENABLE_FEATURE_VOLUMEID_UFS
    122 volume_id_probe_ufs,
    123 #endif
    124 +#if ENABLE_FEATURE_VOLUMEID_F2FS
    125 + volume_id_probe_f2fs,
    126 +#endif
    127 #if ENABLE_FEATURE_VOLUMEID_NTFS
    128 volume_id_probe_ntfs,
    129 #endif
    130 diff -Naur busybox-1.20.2/util-linux/volume_id/volume_id_internal.h busybox-1.20.2-magellan/util-linux/volume_id/volume_id_internal.h
    131 --- busybox-1.20.2/util-linux/volume_id/volume_id_internal.h 2012-06-26 13:35:45.000000000 +0000
    132 +++ busybox-1.20.2-magellan/util-linux/volume_id/volume_id_internal.h 2013-03-19 22:04:33.223000000 +0000
    133 @@ -212,6 +212,8 @@
    134
    135 //int FAST_FUNC volume_id_probe_msdos_part_table(struct volume_id *id /*,uint64_t off*/);
    136
    137 +int FAST_FUNC volume_id_probe_f2fs(struct volume_id *id /*,uint64_t off*/);
    138 +
    139 int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
    140
    141 int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);