mkjournal.c revision 32138187f08d1f1dc03feb269f987982db76f3db
1d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o/* 2d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * mkjournal.c --- make a journal for a filesystem 3d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * 4d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * Copyright (C) 2000 Theodore Ts'o. 5d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * 6d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * %Begin-Header% 7d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * This file may be redistributed under the terms of the GNU Public 8d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * License. 9d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o * %End-Header% 10d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o */ 11d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 12d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <stdio.h> 13d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <string.h> 14d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#if HAVE_UNISTD_H 15d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <unistd.h> 16d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#endif 17d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#if HAVE_ERRNO_H 18d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <errno.h> 19d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#endif 20d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <fcntl.h> 21d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <time.h> 22d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#if HAVE_SYS_STAT_H 23d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <sys/stat.h> 24d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#endif 25d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#if HAVE_SYS_TYPES_H 26d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include <sys/types.h> 27d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#endif 28349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#if HAVE_SYS_IOCTL_H 29349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#include <sys/ioctl.h> 30349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#endif 3117ee8b17f91988a3beedbd96eec4642e784f3251Theodore Ts'o#if HAVE_NETINET_IN_H 3217ee8b17f91988a3beedbd96eec4642e784f3251Theodore Ts'o#include <netinet/in.h> 3317ee8b17f91988a3beedbd96eec4642e784f3251Theodore Ts'o#endif 34d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 35d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include "ext2_fs.h" 36cdaf1fa78f6d63457eb5337c14b23e567d1346a7Theodore Ts'o#include "e2p/e2p.h" 37d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#include "ext2fs.h" 38586187372afea65ae685687505b49b40fc5f3212Theodore Ts'o#include "jfs_user.h" 39d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 40a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o/* 41a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o * This function automatically sets up the journal superblock and 42a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o * returns it as an allocated block. 43a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o */ 44a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'oerrcode_t ext2fs_create_journal_superblock(ext2_filsys fs, 45a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o __u32 size, int flags, 46a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o char **ret_jsb) 47d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o{ 48a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o errcode_t retval; 49a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o journal_superblock_t *jsb; 50036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o 51036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o if (size < 1024) 52036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o return EXT2_ET_JOURNAL_TOO_SMALL; 53036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o 54c4e3d3f374b409500e3dd05c0b0eca6ac98a6b4eTheodore Ts'o if ((retval = ext2fs_get_mem(fs->blocksize, &jsb))) 55a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return retval; 56a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 57a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o memset (jsb, 0, fs->blocksize); 58586187372afea65ae685687505b49b40fc5f3212Theodore Ts'o 59d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o jsb->s_header.h_magic = htonl(JFS_MAGIC_NUMBER); 604e246704eab31407ac15be9ab206c6f929507cf0Theodore Ts'o if (flags & EXT2_MKJOURNAL_V1_SUPER) 614e246704eab31407ac15be9ab206c6f929507cf0Theodore Ts'o jsb->s_header.h_blocktype = htonl(JFS_SUPERBLOCK_V1); 624e246704eab31407ac15be9ab206c6f929507cf0Theodore Ts'o else 634e246704eab31407ac15be9ab206c6f929507cf0Theodore Ts'o jsb->s_header.h_blocktype = htonl(JFS_SUPERBLOCK_V2); 64a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o jsb->s_blocksize = htonl(fs->blocksize); 65d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o jsb->s_maxlen = htonl(size); 66d23042af75f2723ed4575946cfa310fca4e526efTheodore Ts'o jsb->s_nr_users = htonl(1); 67d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o jsb->s_first = htonl(1); 68d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o jsb->s_sequence = htonl(1); 69a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o memcpy(jsb->s_uuid, fs->super->s_uuid, sizeof(fs->super->s_uuid)); 70a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o /* 71d23042af75f2723ed4575946cfa310fca4e526efTheodore Ts'o * If we're creating an external journal device, we need to 72d23042af75f2723ed4575946cfa310fca4e526efTheodore Ts'o * adjust these fields. 73a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o */ 74a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if (fs->super->s_feature_incompat & 754e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 76a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o jsb->s_nr_users = 0; 774e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o if (fs->blocksize == 1024) 784e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o jsb->s_first = htonl(3); 794e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o else 804e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o jsb->s_first = htonl(2); 814e40f6c348b9c9f4bd9c82c2b5404c2eabbdc1d3Theodore Ts'o } 82a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 83a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o *ret_jsb = (char *) jsb; 84a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return 0; 85d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o} 864becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 87d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o/* 884becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * This function writes a journal using POSIX routines. It is used 894becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * for creating external journals and creating journals on live 904becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * filesystems. 91d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o */ 92a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'ostatic errcode_t write_journal_file(ext2_filsys fs, char *filename, 934e246704eab31407ac15be9ab206c6f929507cf0Theodore Ts'o blk_t size, int flags) 94d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o{ 95d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o errcode_t retval; 96d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o char *buf = 0; 97544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o int fd, ret_size; 98544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o blk_t i; 99d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 100a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if ((retval = ext2fs_create_journal_superblock(fs, size, flags, &buf))) 101a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return retval; 102d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 103a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o /* Open the device or journal file */ 104a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if ((fd = open(filename, O_WRONLY)) < 0) { 105d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = errno; 106d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o goto errout; 107d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 108d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 109d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o /* Write the superblock out */ 110d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = EXT2_ET_SHORT_WRITE; 111d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o ret_size = write(fd, buf, fs->blocksize); 112d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (ret_size < 0) { 113a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o retval = errno; 114d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o goto errout; 115d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 116544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o if (ret_size != (int) fs->blocksize) 117d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o goto errout; 118d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o memset(buf, 0, fs->blocksize); 1194becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 1204becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o for (i = 1; i < size; i++) { 121d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o ret_size = write(fd, buf, fs->blocksize); 122d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (ret_size < 0) { 123d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = errno; 124d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o goto errout; 125d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 126544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o if (ret_size != (int) fs->blocksize) 127d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o goto errout; 128d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 129d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o close(fd); 130d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 1314becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o retval = 0; 132d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'oerrout: 133c4e3d3f374b409500e3dd05c0b0eca6ac98a6b4eTheodore Ts'o ext2fs_free_mem(&buf); 134d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return retval; 135d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o} 136d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 137d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o/* 1384becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * Helper function for creating the journal using direct I/O routines 139d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o */ 140d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'ostruct mkjournal_struct { 141d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o int num_blocks; 142d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o int newblocks; 143d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o char *buf; 144d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o errcode_t err; 145d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o}; 146d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 147544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'ostatic int mkjournal_proc(ext2_filsys fs, 148544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o blk_t *blocknr, 149544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o e2_blkcnt_t blockcnt, 150544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o blk_t ref_block EXT2FS_ATTR((unused)), 151544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o int ref_offset EXT2FS_ATTR((unused)), 152544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o void *priv_data) 153d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o{ 154d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o struct mkjournal_struct *es = (struct mkjournal_struct *) priv_data; 155d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o blk_t new_blk; 156d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o static blk_t last_blk = 0; 157d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o errcode_t retval; 158d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 159d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (*blocknr) { 160d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o last_blk = *blocknr; 161d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return 0; 162d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 163d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = ext2fs_new_block(fs, last_blk, 0, &new_blk); 164d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (retval) { 165d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es->err = retval; 166d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return BLOCK_ABORT; 167d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 168d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (blockcnt > 0) 169d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es->num_blocks--; 170d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 171d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es->newblocks++; 172d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = io_channel_write_blk(fs->io, new_blk, 1, es->buf); 173d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 174d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (blockcnt == 0) 175d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o memset(es->buf, 0, fs->blocksize); 176d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 177d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (retval) { 178d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es->err = retval; 179d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return BLOCK_ABORT; 180d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 181d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o *blocknr = new_blk; 18289a6ebd524891f332aad8ca0281935159ddc1217Theodore Ts'o last_blk = new_blk; 1838bd0c95908baa3af706b9e731daff9472bec74c9Theodore Ts'o ext2fs_block_alloc_stats(fs, new_blk, +1); 184d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 185d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (es->num_blocks == 0) 186d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return (BLOCK_CHANGED | BLOCK_ABORT); 187d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o else 188d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return BLOCK_CHANGED; 189d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 190d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o} 191d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 192d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o/* 1934becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * This function creates a journal using direct I/O routines. 194d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o */ 19531dbecd482405e0d3a67eb58e1a1c8cb9f2ad83eTheodore Ts'ostatic errcode_t write_journal_inode(ext2_filsys fs, ext2_ino_t journal_ino, 1964becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o blk_t size, int flags) 197d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o{ 198a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o char *buf; 199d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o errcode_t retval; 200d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o struct ext2_inode inode; 201d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o struct mkjournal_struct es; 202d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 203a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if ((retval = ext2fs_create_journal_superblock(fs, size, flags, &buf))) 204a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return retval; 205a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 206d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if ((retval = ext2fs_read_bitmaps(fs))) 207d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return retval; 208d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 2094becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((retval = ext2fs_read_inode(fs, journal_ino, &inode))) 210d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return retval; 211d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 212d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (inode.i_blocks > 0) 213d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return EEXIST; 214d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 215d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es.num_blocks = size; 216d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es.newblocks = 0; 217d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es.buf = buf; 218d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o es.err = 0; 219d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 2204becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o retval = ext2fs_block_iterate2(fs, journal_ino, BLOCK_FLAG_APPEND, 221d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 0, mkjournal_proc, &es); 222a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if (es.err) { 223a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o retval = es.err; 224a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o goto errout; 225a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o } 226d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 2274becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((retval = ext2fs_read_inode(fs, journal_ino, &inode))) 228a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o goto errout; 229d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 230d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o inode.i_size += fs->blocksize * size; 231d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o inode.i_blocks += (fs->blocksize / 512) * es.newblocks; 23232138187f08d1f1dc03feb269f987982db76f3dbTheodore Ts'o inode.i_mtime = inode.i_ctime = fs->now ? fs->now : time(0); 233d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o inode.i_links_count = 1; 234d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o inode.i_mode = LINUX_S_IFREG | 0600; 235d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 2364becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((retval = ext2fs_write_inode(fs, journal_ino, &inode))) 237a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o goto errout; 238a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o retval = 0; 239d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 240a435ec3449694a8fa299337197cc09624960a3a6Theodore Ts'o memcpy(fs->super->s_jnl_blocks, inode.i_block, EXT2_N_BLOCKS*4); 241a435ec3449694a8fa299337197cc09624960a3a6Theodore Ts'o fs->super->s_jnl_blocks[16] = inode.i_size; 242a435ec3449694a8fa299337197cc09624960a3a6Theodore Ts'o fs->super->s_jnl_backup_type = EXT3_JNL_BACKUP_BLOCKS; 243a435ec3449694a8fa299337197cc09624960a3a6Theodore Ts'o ext2fs_mark_super_dirty(fs); 244a435ec3449694a8fa299337197cc09624960a3a6Theodore Ts'o 245a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'oerrout: 246c4e3d3f374b409500e3dd05c0b0eca6ac98a6b4eTheodore Ts'o ext2fs_free_mem(&buf); 247a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return retval; 2484becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o} 2494becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 2504becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o/* 2514becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * This function adds a journal device to a filesystem 2524becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o */ 253a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'oerrcode_t ext2fs_add_journal_device(ext2_filsys fs, ext2_filsys journal_dev) 2544becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o{ 2554becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o struct stat st; 2564becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o errcode_t retval; 257a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o char buf[1024]; 258a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o journal_superblock_t *jsb; 259544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o int start; 260544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o __u32 i, nr_users; 2614becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 2624becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o /* Make sure the device exists and is a block device */ 263020888625fb8f6d5293e67da95ae18c0af45aeadTheodore Ts'o if (stat(journal_dev->device_name, &st) < 0) 2644becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return errno; 265a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 2664becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if (!S_ISBLK(st.st_mode)) 267036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o return EXT2_ET_JOURNAL_NOT_BLOCK; /* Must be a block device */ 2684becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 269a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o /* Get the journal superblock */ 27036131b37d7d37ad59153cc2c56f774e28e286acfTheodore Ts'o start = 1; 27136131b37d7d37ad59153cc2c56f774e28e286acfTheodore Ts'o if (journal_dev->blocksize == 1024) 27236131b37d7d37ad59153cc2c56f774e28e286acfTheodore Ts'o start++; 27336131b37d7d37ad59153cc2c56f774e28e286acfTheodore Ts'o if ((retval = io_channel_read_blk(journal_dev->io, start, -1024, buf))) 2744becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return retval; 2754becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 276a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o jsb = (journal_superblock_t *) buf; 277a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) || 278a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o (jsb->s_header.h_blocktype != (unsigned) ntohl(JFS_SUPERBLOCK_V2))) 279036039460ff76f397bc23977a26632698136b0e6Theodore Ts'o return EXT2_ET_NO_JOURNAL_SB; 280a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 281544349270e4c74a6feb971123884a8cf5052a7eeTheodore Ts'o if (ntohl(jsb->s_blocksize) != (unsigned long) fs->blocksize) 282a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o return EXT2_ET_UNEXPECTED_BLOCK_SIZE; 283a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o 284a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o /* Check and see if this filesystem has already been added */ 285a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o nr_users = ntohl(jsb->s_nr_users); 286a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o for (i=0; i < nr_users; i++) { 287a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if (memcmp(fs->super->s_uuid, 288a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o &jsb->s_users[i*16], 16) == 0) 289a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o break; 290a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o } 291a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o if (i >= nr_users) { 292a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o memcpy(&jsb->s_users[nr_users*16], 293a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o fs->super->s_uuid, 16); 294a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o jsb->s_nr_users = htonl(nr_users+1); 295a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o } 2964becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 297a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o /* Writeback the journal superblock */ 298f35e6440ef09dca989d98213c1be62efd1ee183aTheodore Ts'o if ((retval = io_channel_write_blk(journal_dev->io, start, -1024, buf))) 2994becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return retval; 3004becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3014becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o fs->super->s_journal_inum = 0; 3024becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o fs->super->s_journal_dev = st.st_rdev; 303a112847b39386f9e7332ba5e5a0a5e54cfe301ccTheodore Ts'o memcpy(fs->super->s_journal_uuid, jsb->s_uuid, 3044becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o sizeof(fs->super->s_journal_uuid)); 3054becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o fs->super->s_feature_compat |= EXT3_FEATURE_COMPAT_HAS_JOURNAL; 3064becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o ext2fs_mark_super_dirty(fs); 307cdaf1fa78f6d63457eb5337c14b23e567d1346a7Theodore Ts'o return 0; 3084becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o} 3094becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3104becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o/* 3114becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * This function adds a journal inode to a filesystem, using either 3124becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * POSIX routines if the filesystem is mounted, or using direct I/O 3134becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o * functions if it is not. 3144becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o */ 3154becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'oerrcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, int flags) 3164becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o{ 3174becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o errcode_t retval; 31831dbecd482405e0d3a67eb58e1a1c8cb9f2ad83eTheodore Ts'o ext2_ino_t journal_ino; 3194becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o struct stat st; 3204becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o char jfile[1024]; 321349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o int fd, mount_flags, f; 3224becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 323cdaf1fa78f6d63457eb5337c14b23e567d1346a7Theodore Ts'o if ((retval = ext2fs_check_mount_point(fs->device_name, &mount_flags, 324cdaf1fa78f6d63457eb5337c14b23e567d1346a7Theodore Ts'o jfile, sizeof(jfile)-10))) 3254becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return retval; 3264becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3274becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if (mount_flags & EXT2_MF_MOUNTED) { 3284becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o strcat(jfile, "/.journal"); 3294becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3305bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o /* 3315bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o * If .../.journal already exists, make sure any 3325bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o * immutable or append-only flags are cleared. 3335bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o */ 3345bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o#if defined(HAVE_CHFLAGS) && defined(UF_NODUMP) 3355bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o (void) chflags (jfile, 0); 3365bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o#else 3375bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o#if HAVE_EXT2_IOCTLS 3385bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o fd = open(jfile, O_RDONLY); 3395bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o if (fd >= 0) { 3405bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o f = 0; 3415bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o ioctl(fd, EXT2_IOC_SETFLAGS, &f); 3425bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o close(fd); 3435bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o } 3445bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o#endif 3455bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o#endif 3465bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o 3474becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o /* Create the journal file */ 3484becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((fd = open(jfile, O_CREAT|O_WRONLY, 0600)) < 0) 3494becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return errno; 3504becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3514becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((retval = write_journal_file(fs, jfile, size, flags))) 352b23520d0501095dee715d0829c365933c216e612Theodore Ts'o goto errout; 353b23520d0501095dee715d0829c365933c216e612Theodore Ts'o 3544becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o /* Get inode number of the journal file */ 355349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o if (fstat(fd, &st) < 0) 356b23520d0501095dee715d0829c365933c216e612Theodore Ts'o goto errout; 3574becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3587833262585b0f9f85915c387fa35708cf3ff3609Theodore Ts'o#if defined(HAVE_CHFLAGS) && defined(UF_NODUMP) 359349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o retval = fchflags (fd, UF_NODUMP|UF_IMMUTABLE); 360349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#else 361349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#if HAVE_EXT2_IOCTLS 3625bc28df0fa2544a08b65d9091fdc9fb23bdbce68Theodore Ts'o f = EXT2_NODUMP_FL | EXT2_IMMUTABLE_FL; 363349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o retval = ioctl(fd, EXT2_IOC_SETFLAGS, &f); 364349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#endif 365349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o#endif 366349a484a57ab13fed315f72552bdf8dbf89ba72aTheodore Ts'o if (retval) 367b23520d0501095dee715d0829c365933c216e612Theodore Ts'o goto errout; 368b23520d0501095dee715d0829c365933c216e612Theodore Ts'o 369b23520d0501095dee715d0829c365933c216e612Theodore Ts'o close(fd); 3704becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o journal_ino = st.st_ino; 3714becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o } else { 37229af314d3fd4cb907a4f474645e04bd26ba66f5fTheodore Ts'o if (mount_flags & EXT2_MF_BUSY) { 37329af314d3fd4cb907a4f474645e04bd26ba66f5fTheodore Ts'o retval = EBUSY; 37429af314d3fd4cb907a4f474645e04bd26ba66f5fTheodore Ts'o goto errout; 37529af314d3fd4cb907a4f474645e04bd26ba66f5fTheodore Ts'o } 3764becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o journal_ino = EXT2_JOURNAL_INO; 3774becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o if ((retval = write_journal_inode(fs, journal_ino, 3784becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o size, flags))) 3794becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o return retval; 3804becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o } 3814becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o 3824becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o fs->super->s_journal_inum = journal_ino; 3834becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o fs->super->s_journal_dev = 0; 3844becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o memset(fs->super->s_journal_uuid, 0, 3854becab6824aa5fdb022a293ae0b4622784496256Theodore Ts'o sizeof(fs->super->s_journal_uuid)); 386d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o fs->super->s_feature_compat |= EXT3_FEATURE_COMPAT_HAS_JOURNAL; 387d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 388d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o ext2fs_mark_super_dirty(fs); 389d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o return 0; 390b23520d0501095dee715d0829c365933c216e612Theodore Ts'oerrout: 391b23520d0501095dee715d0829c365933c216e612Theodore Ts'o close(fd); 392b23520d0501095dee715d0829c365933c216e612Theodore Ts'o return retval; 393d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o} 394d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 395d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#ifdef DEBUG 396d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'omain(int argc, char **argv) 397d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o{ 398d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o errcode_t retval; 399d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o char *device_name; 400d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o ext2_filsys fs; 401d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 402d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (argc < 2) { 403d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o fprintf(stderr, "Usage: %s filesystem\n", argv[0]); 404d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o exit(1); 405d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 406d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o device_name = argv[1]; 407d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 408d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = ext2fs_open (device_name, EXT2_FLAG_RW, 0, 0, 409d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o unix_io_manager, &fs); 410d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (retval) { 411d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o com_err(argv[0], retval, "while opening %s", device_name); 412d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o exit(1); 413d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 414d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 41531a17b36d5f7d875f9de8e86501eaf2338f94d2bTheodore Ts'o retval = ext2fs_add_journal_inode(fs, 1024); 416d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (retval) { 417d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o com_err(argv[0], retval, "while adding journal to %s", 418d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o device_name); 419d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o exit(1); 420d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 421d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o retval = ext2fs_flush(fs); 422d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o if (retval) { 423d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o printf("Warning, had trouble writing out superblocks.\n"); 424d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o } 425d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o ext2fs_close(fs); 426d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o exit(0); 427d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o 428d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o} 429d3cd93cabeac8c153c8ae7b1b7358d6ced86b15eTheodore Ts'o#endif 430