Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/fs/ufs/super.c |
| 3 | * |
| 4 | * Copyright (C) 1998 |
| 5 | * Daniel Pirkl <daniel.pirkl@email.cz> |
| 6 | * Charles University, Faculty of Mathematics and Physics |
| 7 | */ |
| 8 | |
| 9 | /* Derived from |
| 10 | * |
| 11 | * linux/fs/ext2/super.c |
| 12 | * |
| 13 | * Copyright (C) 1992, 1993, 1994, 1995 |
| 14 | * Remy Card (card@masi.ibp.fr) |
| 15 | * Laboratoire MASI - Institut Blaise Pascal |
| 16 | * Universite Pierre et Marie Curie (Paris VI) |
| 17 | * |
| 18 | * from |
| 19 | * |
| 20 | * linux/fs/minix/inode.c |
| 21 | * |
| 22 | * Copyright (C) 1991, 1992 Linus Torvalds |
| 23 | * |
| 24 | * Big-endian to little-endian byte-swapping/bitmaps by |
| 25 | * David S. Miller (davem@caip.rutgers.edu), 1995 |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * Inspired by |
| 30 | * |
| 31 | * linux/fs/ufs/super.c |
| 32 | * |
| 33 | * Copyright (C) 1996 |
| 34 | * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) |
| 35 | * Laboratory for Computer Science Research Computing Facility |
| 36 | * Rutgers, The State University of New Jersey |
| 37 | * |
| 38 | * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) |
| 39 | * |
| 40 | * Kernel module support added on 96/04/26 by |
| 41 | * Stefan Reinauer <stepan@home.culture.mipt.ru> |
| 42 | * |
| 43 | * Module usage counts added on 96/04/29 by |
| 44 | * Gertjan van Wingerde <gertjan@cs.vu.nl> |
| 45 | * |
| 46 | * Clean swab support on 19970406 by |
| 47 | * Francois-Rene Rideau <fare@tunes.org> |
| 48 | * |
| 49 | * 4.4BSD (FreeBSD) support added on February 1st 1998 by |
| 50 | * Niels Kristian Bech Jensen <nkbj@image.dk> partially based |
| 51 | * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. |
| 52 | * |
| 53 | * NeXTstep support added on February 5th 1998 by |
| 54 | * Niels Kristian Bech Jensen <nkbj@image.dk>. |
| 55 | * |
| 56 | * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 |
| 57 | * |
| 58 | * HP/UX hfs filesystem support added by |
| 59 | * Martin K. Petersen <mkp@mkp.net>, August 1999 |
| 60 | * |
| 61 | * UFS2 (of FreeBSD 5.x) support added by |
| 62 | * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 |
| 63 | * |
| 64 | */ |
| 65 | |
| 66 | |
| 67 | #include <linux/config.h> |
| 68 | #include <linux/module.h> |
| 69 | #include <linux/bitops.h> |
| 70 | |
| 71 | #include <stdarg.h> |
| 72 | |
| 73 | #include <asm/uaccess.h> |
| 74 | #include <asm/system.h> |
| 75 | |
| 76 | #include <linux/errno.h> |
| 77 | #include <linux/fs.h> |
| 78 | #include <linux/ufs_fs.h> |
| 79 | #include <linux/slab.h> |
| 80 | #include <linux/time.h> |
| 81 | #include <linux/stat.h> |
| 82 | #include <linux/string.h> |
| 83 | #include <linux/blkdev.h> |
| 84 | #include <linux/init.h> |
| 85 | #include <linux/parser.h> |
| 86 | #include <linux/smp_lock.h> |
| 87 | #include <linux/buffer_head.h> |
| 88 | #include <linux/vfs.h> |
| 89 | |
| 90 | #include "swab.h" |
| 91 | #include "util.h" |
| 92 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 93 | #ifdef CONFIG_UFS_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | /* |
| 95 | * Print contents of ufs_super_block, useful for debugging |
| 96 | */ |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 97 | static void ufs_print_super_stuff(struct super_block *sb, unsigned flags, |
| 98 | struct ufs_super_block_first *usb1, |
| 99 | struct ufs_super_block_second *usb2, |
| 100 | struct ufs_super_block_third *usb3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | { |
| 102 | printk("ufs_print_super_stuff\n"); |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 103 | printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb3->fs_magic)); |
| 104 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { |
| 105 | printk(" fs_size: %llu\n", (unsigned long long) |
| 106 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); |
| 107 | printk(" fs_dsize: %llu\n", (unsigned long long) |
| 108 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); |
| 109 | printk(" bsize: %u\n", |
| 110 | fs32_to_cpu(sb, usb1->fs_bsize)); |
| 111 | printk(" fsize: %u\n", |
| 112 | fs32_to_cpu(sb, usb1->fs_fsize)); |
| 113 | printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); |
| 114 | printk(" fs_sblockloc: %llu\n", (unsigned long long) |
| 115 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); |
| 116 | printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) |
| 117 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); |
| 118 | printk(" cs_nbfree(No of free blocks): %llu\n", |
| 119 | (unsigned long long) |
| 120 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); |
| 121 | } else { |
| 122 | printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); |
| 123 | printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); |
| 124 | printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); |
| 125 | printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); |
| 126 | printk(" cgoffset: %u\n", |
| 127 | fs32_to_cpu(sb, usb1->fs_cgoffset)); |
| 128 | printk(" ~cgmask: 0x%x\n", |
| 129 | ~fs32_to_cpu(sb, usb1->fs_cgmask)); |
| 130 | printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); |
| 131 | printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); |
| 132 | printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); |
| 133 | printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); |
| 134 | printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); |
| 135 | printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); |
| 136 | printk(" fragshift: %u\n", |
| 137 | fs32_to_cpu(sb, usb1->fs_fragshift)); |
| 138 | printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); |
| 139 | printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); |
| 140 | printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); |
| 141 | printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); |
| 142 | printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); |
| 143 | printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); |
| 144 | printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); |
| 145 | printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); |
| 146 | printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); |
| 147 | printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); |
| 148 | printk(" fstodb: %u\n", |
| 149 | fs32_to_cpu(sb, usb1->fs_fsbtodb)); |
| 150 | printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); |
| 151 | printk(" ndir %u\n", |
| 152 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); |
| 153 | printk(" nifree %u\n", |
| 154 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); |
| 155 | printk(" nbfree %u\n", |
| 156 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); |
| 157 | printk(" nffree %u\n", |
| 158 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); |
| 159 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | printk("\n"); |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * Print contents of ufs_cylinder_group, useful for debugging |
| 165 | */ |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 166 | static void ufs_print_cylinder_stuff(struct super_block *sb, |
| 167 | struct ufs_cylinder_group *cg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | { |
| 169 | printk("\nufs_print_cylinder_stuff\n"); |
Andrew Morton | 96710b2 | 2006-06-25 05:47:28 -0700 | [diff] [blame] | 170 | printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); |
| 172 | printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); |
| 173 | printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); |
| 174 | printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); |
| 175 | printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); |
| 176 | printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); |
| 177 | printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); |
| 178 | printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); |
| 179 | printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); |
| 180 | printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); |
| 181 | printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); |
| 182 | printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); |
| 183 | printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); |
| 184 | printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", |
| 185 | fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), |
| 186 | fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), |
| 187 | fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), |
| 188 | fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); |
| 189 | printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); |
| 190 | printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); |
| 191 | printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); |
| 192 | printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); |
| 193 | printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 194 | printk(" clustersumoff %u\n", |
| 195 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); |
| 196 | printk(" clusteroff %u\n", |
| 197 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); |
| 198 | printk(" nclusterblks %u\n", |
| 199 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | printk("\n"); |
| 201 | } |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 202 | #else |
| 203 | # define ufs_print_super_stuff(sb, flags, usb1, usb2, usb3) /**/ |
| 204 | # define ufs_print_cylinder_stuff(sb, cg) /**/ |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 205 | #endif /* CONFIG_UFS_DEBUG */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
| 207 | static struct super_operations ufs_super_ops; |
| 208 | |
| 209 | static char error_buf[1024]; |
| 210 | |
| 211 | void ufs_error (struct super_block * sb, const char * function, |
| 212 | const char * fmt, ...) |
| 213 | { |
| 214 | struct ufs_sb_private_info * uspi; |
| 215 | struct ufs_super_block_first * usb1; |
| 216 | va_list args; |
| 217 | |
| 218 | uspi = UFS_SB(sb)->s_uspi; |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 219 | usb1 = ubh_get_usb_first(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | if (!(sb->s_flags & MS_RDONLY)) { |
| 222 | usb1->fs_clean = UFS_FSBAD; |
Evgeniy Dushistov | 9695ef1 | 2006-06-25 05:47:22 -0700 | [diff] [blame] | 223 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | sb->s_dirt = 1; |
| 225 | sb->s_flags |= MS_RDONLY; |
| 226 | } |
| 227 | va_start (args, fmt); |
| 228 | vsprintf (error_buf, fmt, args); |
| 229 | va_end (args); |
| 230 | switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { |
| 231 | case UFS_MOUNT_ONERROR_PANIC: |
| 232 | panic ("UFS-fs panic (device %s): %s: %s\n", |
| 233 | sb->s_id, function, error_buf); |
| 234 | |
| 235 | case UFS_MOUNT_ONERROR_LOCK: |
| 236 | case UFS_MOUNT_ONERROR_UMOUNT: |
| 237 | case UFS_MOUNT_ONERROR_REPAIR: |
| 238 | printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", |
| 239 | sb->s_id, function, error_buf); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | void ufs_panic (struct super_block * sb, const char * function, |
| 244 | const char * fmt, ...) |
| 245 | { |
| 246 | struct ufs_sb_private_info * uspi; |
| 247 | struct ufs_super_block_first * usb1; |
| 248 | va_list args; |
| 249 | |
| 250 | uspi = UFS_SB(sb)->s_uspi; |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 251 | usb1 = ubh_get_usb_first(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
| 253 | if (!(sb->s_flags & MS_RDONLY)) { |
| 254 | usb1->fs_clean = UFS_FSBAD; |
Evgeniy Dushistov | 9695ef1 | 2006-06-25 05:47:22 -0700 | [diff] [blame] | 255 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | sb->s_dirt = 1; |
| 257 | } |
| 258 | va_start (args, fmt); |
| 259 | vsprintf (error_buf, fmt, args); |
| 260 | va_end (args); |
| 261 | sb->s_flags |= MS_RDONLY; |
| 262 | printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", |
| 263 | sb->s_id, function, error_buf); |
| 264 | } |
| 265 | |
| 266 | void ufs_warning (struct super_block * sb, const char * function, |
| 267 | const char * fmt, ...) |
| 268 | { |
| 269 | va_list args; |
| 270 | |
| 271 | va_start (args, fmt); |
| 272 | vsprintf (error_buf, fmt, args); |
| 273 | va_end (args); |
| 274 | printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", |
| 275 | sb->s_id, function, error_buf); |
| 276 | } |
| 277 | |
| 278 | enum { |
| 279 | Opt_type_old, Opt_type_sunx86, Opt_type_sun, Opt_type_44bsd, |
| 280 | Opt_type_ufs2, Opt_type_hp, Opt_type_nextstepcd, Opt_type_nextstep, |
| 281 | Opt_type_openstep, Opt_onerror_panic, Opt_onerror_lock, |
| 282 | Opt_onerror_umount, Opt_onerror_repair, Opt_err |
| 283 | }; |
| 284 | |
| 285 | static match_table_t tokens = { |
| 286 | {Opt_type_old, "ufstype=old"}, |
| 287 | {Opt_type_sunx86, "ufstype=sunx86"}, |
| 288 | {Opt_type_sun, "ufstype=sun"}, |
| 289 | {Opt_type_44bsd, "ufstype=44bsd"}, |
| 290 | {Opt_type_ufs2, "ufstype=ufs2"}, |
| 291 | {Opt_type_ufs2, "ufstype=5xbsd"}, |
| 292 | {Opt_type_hp, "ufstype=hp"}, |
| 293 | {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, |
| 294 | {Opt_type_nextstep, "ufstype=nextstep"}, |
| 295 | {Opt_type_openstep, "ufstype=openstep"}, |
| 296 | {Opt_onerror_panic, "onerror=panic"}, |
| 297 | {Opt_onerror_lock, "onerror=lock"}, |
| 298 | {Opt_onerror_umount, "onerror=umount"}, |
| 299 | {Opt_onerror_repair, "onerror=repair"}, |
| 300 | {Opt_err, NULL} |
| 301 | }; |
| 302 | |
| 303 | static int ufs_parse_options (char * options, unsigned * mount_options) |
| 304 | { |
| 305 | char * p; |
| 306 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 307 | UFSD("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
| 309 | if (!options) |
| 310 | return 1; |
| 311 | |
| 312 | while ((p = strsep(&options, ",")) != NULL) { |
| 313 | substring_t args[MAX_OPT_ARGS]; |
| 314 | int token; |
| 315 | if (!*p) |
| 316 | continue; |
| 317 | |
| 318 | token = match_token(p, tokens, args); |
| 319 | switch (token) { |
| 320 | case Opt_type_old: |
| 321 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 322 | ufs_set_opt (*mount_options, UFSTYPE_OLD); |
| 323 | break; |
| 324 | case Opt_type_sunx86: |
| 325 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 326 | ufs_set_opt (*mount_options, UFSTYPE_SUNx86); |
| 327 | break; |
| 328 | case Opt_type_sun: |
| 329 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 330 | ufs_set_opt (*mount_options, UFSTYPE_SUN); |
| 331 | break; |
| 332 | case Opt_type_44bsd: |
| 333 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 334 | ufs_set_opt (*mount_options, UFSTYPE_44BSD); |
| 335 | break; |
| 336 | case Opt_type_ufs2: |
| 337 | ufs_clear_opt(*mount_options, UFSTYPE); |
| 338 | ufs_set_opt(*mount_options, UFSTYPE_UFS2); |
| 339 | break; |
| 340 | case Opt_type_hp: |
| 341 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 342 | ufs_set_opt (*mount_options, UFSTYPE_HP); |
| 343 | break; |
| 344 | case Opt_type_nextstepcd: |
| 345 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 346 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); |
| 347 | break; |
| 348 | case Opt_type_nextstep: |
| 349 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 350 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); |
| 351 | break; |
| 352 | case Opt_type_openstep: |
| 353 | ufs_clear_opt (*mount_options, UFSTYPE); |
| 354 | ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); |
| 355 | break; |
| 356 | case Opt_onerror_panic: |
| 357 | ufs_clear_opt (*mount_options, ONERROR); |
| 358 | ufs_set_opt (*mount_options, ONERROR_PANIC); |
| 359 | break; |
| 360 | case Opt_onerror_lock: |
| 361 | ufs_clear_opt (*mount_options, ONERROR); |
| 362 | ufs_set_opt (*mount_options, ONERROR_LOCK); |
| 363 | break; |
| 364 | case Opt_onerror_umount: |
| 365 | ufs_clear_opt (*mount_options, ONERROR); |
| 366 | ufs_set_opt (*mount_options, ONERROR_UMOUNT); |
| 367 | break; |
| 368 | case Opt_onerror_repair: |
| 369 | printk("UFS-fs: Unable to do repair on error, " |
| 370 | "will lock lock instead\n"); |
| 371 | ufs_clear_opt (*mount_options, ONERROR); |
| 372 | ufs_set_opt (*mount_options, ONERROR_REPAIR); |
| 373 | break; |
| 374 | default: |
| 375 | printk("UFS-fs: Invalid option: \"%s\" " |
| 376 | "or missing value\n", p); |
| 377 | return 0; |
| 378 | } |
| 379 | } |
| 380 | return 1; |
| 381 | } |
| 382 | |
| 383 | /* |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 384 | * Diffrent types of UFS hold fs_cstotal in different |
| 385 | * places, and use diffrent data structure for it. |
| 386 | * To make things simplier we just copy fs_cstotal to ufs_sb_private_info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | */ |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 388 | static void ufs_setup_cstotal(struct super_block *sb) |
Evgeniy Dushistov | e295cfc | 2006-02-03 03:04:04 -0800 | [diff] [blame] | 389 | { |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 390 | struct ufs_sb_info *sbi = UFS_SB(sb); |
| 391 | struct ufs_sb_private_info *uspi = sbi->s_uspi; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 392 | struct ufs_super_block_first *usb1; |
| 393 | struct ufs_super_block_second *usb2; |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 394 | struct ufs_super_block_third *usb3; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 395 | unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; |
| 396 | |
| 397 | UFSD("ENTER, mtype=%u\n", mtype); |
| 398 | usb1 = ubh_get_usb_first(uspi); |
| 399 | usb2 = ubh_get_usb_second(uspi); |
| 400 | usb3 = ubh_get_usb_third(uspi); |
| 401 | |
| 402 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && |
| 403 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || |
| 404 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { |
| 405 | /*we have statistic in different place, then usual*/ |
| 406 | uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); |
| 407 | uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); |
| 408 | uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); |
| 409 | uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); |
| 410 | } else { |
| 411 | uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); |
| 412 | uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); |
| 413 | uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); |
| 414 | uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); |
| 415 | } |
| 416 | UFSD("EXIT\n"); |
| 417 | } |
| 418 | |
| 419 | /* |
| 420 | * Read on-disk structures associated with cylinder groups |
| 421 | */ |
| 422 | static int ufs_read_cylinder_structures(struct super_block *sb) |
| 423 | { |
| 424 | struct ufs_sb_info *sbi = UFS_SB(sb); |
| 425 | struct ufs_sb_private_info *uspi = sbi->s_uspi; |
| 426 | unsigned flags = sbi->s_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | struct ufs_buffer_head * ubh; |
| 428 | unsigned char * base, * space; |
| 429 | unsigned size, blks, i; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 430 | struct ufs_super_block_third *usb3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 432 | UFSD("ENTER\n"); |
| 433 | |
| 434 | usb3 = ubh_get_usb_third(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | /* |
| 436 | * Read cs structures from (usually) first data block |
| 437 | * on the device. |
| 438 | */ |
| 439 | size = uspi->s_cssize; |
| 440 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; |
| 441 | base = space = kmalloc(size, GFP_KERNEL); |
| 442 | if (!base) |
| 443 | goto failed; |
Evgeniy Dushistov | e295cfc | 2006-02-03 03:04:04 -0800 | [diff] [blame] | 444 | sbi->s_csp = (struct ufs_csum *)space; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | for (i = 0; i < blks; i += uspi->s_fpb) { |
| 446 | size = uspi->s_bsize; |
| 447 | if (i + uspi->s_fpb > blks) |
| 448 | size = (blks - i) * uspi->s_fsize; |
| 449 | |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 450 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | ubh = ubh_bread(sb, |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 452 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr) + i, size); |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 453 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 455 | |
| 456 | if (!ubh) |
| 457 | goto failed; |
| 458 | |
| 459 | ubh_ubhcpymem (space, ubh, size); |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 460 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | space += size; |
| 462 | ubh_brelse (ubh); |
| 463 | ubh = NULL; |
| 464 | } |
| 465 | |
| 466 | /* |
| 467 | * Read cylinder group (we read only first fragment from block |
| 468 | * at this time) and prepare internal data structures for cg caching. |
| 469 | */ |
| 470 | if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) |
| 471 | goto failed; |
| 472 | for (i = 0; i < uspi->s_ncg; i++) |
| 473 | sbi->s_ucg[i] = NULL; |
| 474 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { |
| 475 | sbi->s_ucpi[i] = NULL; |
| 476 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; |
| 477 | } |
| 478 | for (i = 0; i < uspi->s_ncg; i++) { |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 479 | UFSD("read cg %u\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) |
| 481 | goto failed; |
| 482 | if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) |
| 483 | goto failed; |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { |
| 488 | if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) |
| 489 | goto failed; |
| 490 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; |
| 491 | } |
| 492 | sbi->s_cg_loaded = 0; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 493 | UFSD("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | return 1; |
| 495 | |
| 496 | failed: |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 497 | kfree (base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | if (sbi->s_ucg) { |
| 499 | for (i = 0; i < uspi->s_ncg; i++) |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 500 | if (sbi->s_ucg[i]) |
| 501 | brelse (sbi->s_ucg[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | kfree (sbi->s_ucg); |
| 503 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 504 | kfree (sbi->s_ucpi[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | } |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 506 | UFSD("EXIT (FAILED)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | return 0; |
| 508 | } |
| 509 | |
| 510 | /* |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 511 | * Sync our internal copy of fs_cstotal with disk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | */ |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 513 | static void ufs_put_cstotal(struct super_block *sb) |
Evgeniy Dushistov | e295cfc | 2006-02-03 03:04:04 -0800 | [diff] [blame] | 514 | { |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 515 | unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; |
| 516 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; |
| 517 | struct ufs_super_block_first *usb1; |
| 518 | struct ufs_super_block_second *usb2; |
| 519 | struct ufs_super_block_third *usb3; |
| 520 | |
| 521 | UFSD("ENTER\n"); |
| 522 | usb1 = ubh_get_usb_first(uspi); |
| 523 | usb2 = ubh_get_usb_second(uspi); |
| 524 | usb3 = ubh_get_usb_third(uspi); |
| 525 | |
| 526 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && |
| 527 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || |
| 528 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { |
| 529 | /*we have statistic in different place, then usual*/ |
| 530 | usb2->fs_un.fs_u2.cs_ndir = |
| 531 | cpu_to_fs64(sb, uspi->cs_total.cs_ndir); |
| 532 | usb2->fs_un.fs_u2.cs_nbfree = |
| 533 | cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); |
| 534 | usb3->fs_un1.fs_u2.cs_nifree = |
| 535 | cpu_to_fs64(sb, uspi->cs_total.cs_nifree); |
| 536 | usb3->fs_un1.fs_u2.cs_nffree = |
| 537 | cpu_to_fs64(sb, uspi->cs_total.cs_nffree); |
| 538 | } else { |
| 539 | usb1->fs_cstotal.cs_ndir = |
| 540 | cpu_to_fs32(sb, uspi->cs_total.cs_ndir); |
| 541 | usb1->fs_cstotal.cs_nbfree = |
| 542 | cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); |
| 543 | usb1->fs_cstotal.cs_nifree = |
| 544 | cpu_to_fs32(sb, uspi->cs_total.cs_nifree); |
| 545 | usb1->fs_cstotal.cs_nffree = |
| 546 | cpu_to_fs32(sb, uspi->cs_total.cs_nffree); |
| 547 | } |
| 548 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
| 549 | UFSD("EXIT\n"); |
| 550 | } |
| 551 | |
| 552 | /** |
| 553 | * ufs_put_super_internal() - put on-disk intrenal structures |
| 554 | * @sb: pointer to super_block structure |
| 555 | * Put on-disk structures associated with cylinder groups |
| 556 | * and write them back to disk, also update cs_total on disk |
| 557 | */ |
| 558 | static void ufs_put_super_internal(struct super_block *sb) |
| 559 | { |
| 560 | struct ufs_sb_info *sbi = UFS_SB(sb); |
| 561 | struct ufs_sb_private_info *uspi = sbi->s_uspi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | struct ufs_buffer_head * ubh; |
| 563 | unsigned char * base, * space; |
| 564 | unsigned blks, size, i; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 565 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 567 | UFSD("ENTER\n"); |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 568 | ufs_put_cstotal(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | size = uspi->s_cssize; |
| 570 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; |
Evgeniy Dushistov | e295cfc | 2006-02-03 03:04:04 -0800 | [diff] [blame] | 571 | base = space = (char*) sbi->s_csp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | for (i = 0; i < blks; i += uspi->s_fpb) { |
| 573 | size = uspi->s_bsize; |
| 574 | if (i + uspi->s_fpb > blks) |
| 575 | size = (blks - i) * uspi->s_fsize; |
| 576 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
| 577 | ubh_memcpyubh (ubh, space, size); |
| 578 | space += size; |
| 579 | ubh_mark_buffer_uptodate (ubh, 1); |
| 580 | ubh_mark_buffer_dirty (ubh); |
| 581 | ubh_brelse (ubh); |
| 582 | } |
| 583 | for (i = 0; i < sbi->s_cg_loaded; i++) { |
| 584 | ufs_put_cylinder (sb, i); |
| 585 | kfree (sbi->s_ucpi[i]); |
| 586 | } |
| 587 | for (; i < UFS_MAX_GROUP_LOADED; i++) |
| 588 | kfree (sbi->s_ucpi[i]); |
| 589 | for (i = 0; i < uspi->s_ncg; i++) |
| 590 | brelse (sbi->s_ucg[i]); |
| 591 | kfree (sbi->s_ucg); |
| 592 | kfree (base); |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 593 | UFSD("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | static int ufs_fill_super(struct super_block *sb, void *data, int silent) |
| 597 | { |
| 598 | struct ufs_sb_info * sbi; |
| 599 | struct ufs_sb_private_info * uspi; |
| 600 | struct ufs_super_block_first * usb1; |
| 601 | struct ufs_super_block_second * usb2; |
| 602 | struct ufs_super_block_third * usb3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | struct ufs_buffer_head * ubh; |
| 604 | struct inode *inode; |
| 605 | unsigned block_size, super_block_size; |
| 606 | unsigned flags; |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 607 | unsigned super_block_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | |
| 609 | uspi = NULL; |
| 610 | ubh = NULL; |
| 611 | flags = 0; |
| 612 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 613 | UFSD("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
| 615 | sbi = kmalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); |
| 616 | if (!sbi) |
| 617 | goto failed_nomem; |
| 618 | sb->s_fs_info = sbi; |
| 619 | memset(sbi, 0, sizeof(struct ufs_sb_info)); |
| 620 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 621 | UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
| 623 | #ifndef CONFIG_UFS_FS_WRITE |
| 624 | if (!(sb->s_flags & MS_RDONLY)) { |
| 625 | printk("ufs was compiled with read-only support, " |
| 626 | "can't be mounted as read-write\n"); |
| 627 | goto failed; |
| 628 | } |
| 629 | #endif |
| 630 | /* |
| 631 | * Set default mount options |
| 632 | * Parse mount options |
| 633 | */ |
| 634 | sbi->s_mount_opt = 0; |
| 635 | ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); |
| 636 | if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { |
| 637 | printk("wrong mount options\n"); |
| 638 | goto failed; |
| 639 | } |
| 640 | if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { |
| 641 | if (!silent) |
| 642 | printk("You didn't specify the type of your ufs filesystem\n\n" |
| 643 | "mount -t ufs -o ufstype=" |
Michael Owen | c690a72 | 2006-03-24 18:21:44 +0100 | [diff] [blame] | 644 | "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " |
| 646 | "default is ufstype=old\n"); |
| 647 | ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); |
| 648 | } |
| 649 | |
| 650 | sbi->s_uspi = uspi = |
| 651 | kmalloc (sizeof(struct ufs_sb_private_info), GFP_KERNEL); |
| 652 | if (!uspi) |
| 653 | goto failed; |
| 654 | |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 655 | super_block_offset=UFS_SBLOCK; |
| 656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | /* Keep 2Gig file limit. Some UFS variants need to override |
| 658 | this but as I don't know which I'll let those in the know loosen |
| 659 | the rules */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { |
| 661 | case UFS_MOUNT_UFSTYPE_44BSD: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 662 | UFSD("ufstype=44bsd\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | uspi->s_fsize = block_size = 512; |
| 664 | uspi->s_fmask = ~(512 - 1); |
| 665 | uspi->s_fshift = 9; |
| 666 | uspi->s_sbsize = super_block_size = 1536; |
| 667 | uspi->s_sbbase = 0; |
| 668 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
| 669 | break; |
| 670 | case UFS_MOUNT_UFSTYPE_UFS2: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 671 | UFSD("ufstype=ufs2\n"); |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 672 | super_block_offset=SBLOCK_UFS2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | uspi->s_fsize = block_size = 512; |
| 674 | uspi->s_fmask = ~(512 - 1); |
| 675 | uspi->s_fshift = 9; |
| 676 | uspi->s_sbsize = super_block_size = 1536; |
| 677 | uspi->s_sbbase = 0; |
| 678 | flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
| 679 | if (!(sb->s_flags & MS_RDONLY)) { |
| 680 | printk(KERN_INFO "ufstype=ufs2 is supported read-only\n"); |
| 681 | sb->s_flags |= MS_RDONLY; |
| 682 | } |
| 683 | break; |
| 684 | |
| 685 | case UFS_MOUNT_UFSTYPE_SUN: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 686 | UFSD("ufstype=sun\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | uspi->s_fsize = block_size = 1024; |
| 688 | uspi->s_fmask = ~(1024 - 1); |
| 689 | uspi->s_fshift = 10; |
| 690 | uspi->s_sbsize = super_block_size = 2048; |
| 691 | uspi->s_sbbase = 0; |
| 692 | uspi->s_maxsymlinklen = 56; |
| 693 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; |
| 694 | break; |
| 695 | |
| 696 | case UFS_MOUNT_UFSTYPE_SUNx86: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 697 | UFSD("ufstype=sunx86\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | uspi->s_fsize = block_size = 1024; |
| 699 | uspi->s_fmask = ~(1024 - 1); |
| 700 | uspi->s_fshift = 10; |
| 701 | uspi->s_sbsize = super_block_size = 2048; |
| 702 | uspi->s_sbbase = 0; |
| 703 | uspi->s_maxsymlinklen = 56; |
| 704 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; |
| 705 | break; |
| 706 | |
| 707 | case UFS_MOUNT_UFSTYPE_OLD: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 708 | UFSD("ufstype=old\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | uspi->s_fsize = block_size = 1024; |
| 710 | uspi->s_fmask = ~(1024 - 1); |
| 711 | uspi->s_fshift = 10; |
| 712 | uspi->s_sbsize = super_block_size = 2048; |
| 713 | uspi->s_sbbase = 0; |
| 714 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| 715 | if (!(sb->s_flags & MS_RDONLY)) { |
| 716 | if (!silent) |
| 717 | printk(KERN_INFO "ufstype=old is supported read-only\n"); |
| 718 | sb->s_flags |= MS_RDONLY; |
| 719 | } |
| 720 | break; |
| 721 | |
| 722 | case UFS_MOUNT_UFSTYPE_NEXTSTEP: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 723 | UFSD("ufstype=nextstep\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | uspi->s_fsize = block_size = 1024; |
| 725 | uspi->s_fmask = ~(1024 - 1); |
| 726 | uspi->s_fshift = 10; |
| 727 | uspi->s_sbsize = super_block_size = 2048; |
| 728 | uspi->s_sbbase = 0; |
| 729 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| 730 | if (!(sb->s_flags & MS_RDONLY)) { |
| 731 | if (!silent) |
| 732 | printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); |
| 733 | sb->s_flags |= MS_RDONLY; |
| 734 | } |
| 735 | break; |
| 736 | |
| 737 | case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 738 | UFSD("ufstype=nextstep-cd\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | uspi->s_fsize = block_size = 2048; |
| 740 | uspi->s_fmask = ~(2048 - 1); |
| 741 | uspi->s_fshift = 11; |
| 742 | uspi->s_sbsize = super_block_size = 2048; |
| 743 | uspi->s_sbbase = 0; |
| 744 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| 745 | if (!(sb->s_flags & MS_RDONLY)) { |
| 746 | if (!silent) |
| 747 | printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); |
| 748 | sb->s_flags |= MS_RDONLY; |
| 749 | } |
| 750 | break; |
| 751 | |
| 752 | case UFS_MOUNT_UFSTYPE_OPENSTEP: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 753 | UFSD("ufstype=openstep\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | uspi->s_fsize = block_size = 1024; |
| 755 | uspi->s_fmask = ~(1024 - 1); |
| 756 | uspi->s_fshift = 10; |
| 757 | uspi->s_sbsize = super_block_size = 2048; |
| 758 | uspi->s_sbbase = 0; |
| 759 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
| 760 | if (!(sb->s_flags & MS_RDONLY)) { |
| 761 | if (!silent) |
| 762 | printk(KERN_INFO "ufstype=openstep is supported read-only\n"); |
| 763 | sb->s_flags |= MS_RDONLY; |
| 764 | } |
| 765 | break; |
| 766 | |
| 767 | case UFS_MOUNT_UFSTYPE_HP: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 768 | UFSD("ufstype=hp\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | uspi->s_fsize = block_size = 1024; |
| 770 | uspi->s_fmask = ~(1024 - 1); |
| 771 | uspi->s_fshift = 10; |
| 772 | uspi->s_sbsize = super_block_size = 2048; |
| 773 | uspi->s_sbbase = 0; |
| 774 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| 775 | if (!(sb->s_flags & MS_RDONLY)) { |
| 776 | if (!silent) |
| 777 | printk(KERN_INFO "ufstype=hp is supported read-only\n"); |
| 778 | sb->s_flags |= MS_RDONLY; |
| 779 | } |
| 780 | break; |
| 781 | default: |
| 782 | if (!silent) |
| 783 | printk("unknown ufstype\n"); |
| 784 | goto failed; |
| 785 | } |
| 786 | |
| 787 | again: |
| 788 | if (!sb_set_blocksize(sb, block_size)) { |
| 789 | printk(KERN_ERR "UFS: failed to set blocksize\n"); |
| 790 | goto failed; |
| 791 | } |
| 792 | |
| 793 | /* |
| 794 | * read ufs super block from device |
| 795 | */ |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 796 | |
| 797 | ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); |
| 798 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | if (!ubh) |
| 800 | goto failed; |
| 801 | |
| 802 | |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 803 | usb1 = ubh_get_usb_first(uspi); |
| 804 | usb2 = ubh_get_usb_second(uspi); |
| 805 | usb3 = ubh_get_usb_third(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | |
| 807 | /* |
| 808 | * Check ufs magic number |
| 809 | */ |
| 810 | sbi->s_bytesex = BYTESEX_LE; |
| 811 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { |
| 812 | case UFS_MAGIC: |
| 813 | case UFS2_MAGIC: |
| 814 | case UFS_MAGIC_LFN: |
| 815 | case UFS_MAGIC_FEA: |
| 816 | case UFS_MAGIC_4GB: |
| 817 | goto magic_found; |
| 818 | } |
| 819 | sbi->s_bytesex = BYTESEX_BE; |
| 820 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { |
| 821 | case UFS_MAGIC: |
| 822 | case UFS2_MAGIC: |
| 823 | case UFS_MAGIC_LFN: |
| 824 | case UFS_MAGIC_FEA: |
| 825 | case UFS_MAGIC_4GB: |
| 826 | goto magic_found; |
| 827 | } |
| 828 | |
| 829 | if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) |
| 830 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) |
| 831 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) |
| 832 | && uspi->s_sbbase < 256) { |
| 833 | ubh_brelse_uspi(uspi); |
| 834 | ubh = NULL; |
| 835 | uspi->s_sbbase += 8; |
| 836 | goto again; |
| 837 | } |
| 838 | if (!silent) |
| 839 | printk("ufs_read_super: bad magic number\n"); |
| 840 | goto failed; |
| 841 | |
| 842 | magic_found: |
| 843 | /* |
| 844 | * Check block and fragment sizes |
| 845 | */ |
| 846 | uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); |
| 847 | uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); |
| 848 | uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); |
| 849 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); |
| 850 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); |
| 851 | |
| 852 | if (uspi->s_fsize & (uspi->s_fsize - 1)) { |
| 853 | printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", |
| 854 | uspi->s_fsize); |
| 855 | goto failed; |
| 856 | } |
| 857 | if (uspi->s_fsize < 512) { |
| 858 | printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", |
| 859 | uspi->s_fsize); |
| 860 | goto failed; |
| 861 | } |
| 862 | if (uspi->s_fsize > 4096) { |
| 863 | printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", |
| 864 | uspi->s_fsize); |
| 865 | goto failed; |
| 866 | } |
| 867 | if (uspi->s_bsize & (uspi->s_bsize - 1)) { |
| 868 | printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", |
| 869 | uspi->s_bsize); |
| 870 | goto failed; |
| 871 | } |
| 872 | if (uspi->s_bsize < 4096) { |
| 873 | printk(KERN_ERR "ufs_read_super: block size %u is too small\n", |
| 874 | uspi->s_bsize); |
| 875 | goto failed; |
| 876 | } |
| 877 | if (uspi->s_bsize / uspi->s_fsize > 8) { |
| 878 | printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", |
| 879 | uspi->s_bsize / uspi->s_fsize); |
| 880 | goto failed; |
| 881 | } |
| 882 | if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { |
| 883 | ubh_brelse_uspi(uspi); |
| 884 | ubh = NULL; |
| 885 | block_size = uspi->s_fsize; |
| 886 | super_block_size = uspi->s_sbsize; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 887 | UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | goto again; |
| 889 | } |
| 890 | |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 891 | |
| 892 | ufs_print_super_stuff(sb, flags, usb1, usb2, usb3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | |
| 894 | /* |
| 895 | * Check, if file system was correctly unmounted. |
| 896 | * If not, make it read only. |
| 897 | */ |
| 898 | if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || |
| 899 | ((flags & UFS_ST_MASK) == UFS_ST_OLD) || |
| 900 | (((flags & UFS_ST_MASK) == UFS_ST_SUN || |
| 901 | (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && |
| 902 | (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { |
| 903 | switch(usb1->fs_clean) { |
| 904 | case UFS_FSCLEAN: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 905 | UFSD("fs is clean\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | break; |
| 907 | case UFS_FSSTABLE: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 908 | UFSD("fs is stable\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | break; |
| 910 | case UFS_FSOSF1: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 911 | UFSD("fs is DEC OSF/1\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | break; |
| 913 | case UFS_FSACTIVE: |
| 914 | printk("ufs_read_super: fs is active\n"); |
| 915 | sb->s_flags |= MS_RDONLY; |
| 916 | break; |
| 917 | case UFS_FSBAD: |
| 918 | printk("ufs_read_super: fs is bad\n"); |
| 919 | sb->s_flags |= MS_RDONLY; |
| 920 | break; |
| 921 | default: |
| 922 | printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); |
| 923 | sb->s_flags |= MS_RDONLY; |
| 924 | break; |
| 925 | } |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 926 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | printk("ufs_read_super: fs needs fsck\n"); |
| 928 | sb->s_flags |= MS_RDONLY; |
| 929 | } |
| 930 | |
| 931 | /* |
| 932 | * Read ufs_super_block into internal data structures |
| 933 | */ |
| 934 | sb->s_op = &ufs_super_ops; |
| 935 | sb->dq_op = NULL; /***/ |
| 936 | sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); |
| 937 | |
| 938 | uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); |
| 939 | uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); |
| 940 | uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); |
| 941 | uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); |
| 942 | uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); |
| 943 | uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); |
| 944 | |
| 945 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 946 | uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); |
| 947 | uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); |
| 948 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); |
| 950 | uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); |
| 951 | } |
| 952 | |
| 953 | uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); |
| 954 | /* s_bsize already set */ |
| 955 | /* s_fsize already set */ |
| 956 | uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); |
| 957 | uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); |
| 958 | uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); |
| 959 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); |
| 960 | uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); |
| 961 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 962 | UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, |
| 963 | uspi->s_fshift); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); |
| 965 | uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); |
| 966 | /* s_sbsize already set */ |
| 967 | uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); |
| 968 | uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); |
| 969 | uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); |
| 970 | uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); |
| 971 | uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); |
| 972 | uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); |
| 973 | uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); |
| 974 | uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); |
| 975 | uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); |
| 976 | uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); |
| 977 | uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); |
| 978 | uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); |
| 979 | uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); |
| 980 | uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); |
| 981 | uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); |
| 982 | uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 983 | uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); |
| 984 | uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); |
| 986 | uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); |
| 987 | uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); |
| 988 | uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); |
| 989 | uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); |
| 990 | uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); |
| 991 | |
| 992 | /* |
| 993 | * Compute another frequently used values |
| 994 | */ |
| 995 | uspi->s_fpbmask = uspi->s_fpb - 1; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 996 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | uspi->s_apbshift = uspi->s_bshift - 3; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 998 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | uspi->s_apbshift = uspi->s_bshift - 2; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1000 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | uspi->s_2apbshift = uspi->s_apbshift * 2; |
| 1002 | uspi->s_3apbshift = uspi->s_apbshift * 3; |
| 1003 | uspi->s_apb = 1 << uspi->s_apbshift; |
| 1004 | uspi->s_2apb = 1 << uspi->s_2apbshift; |
| 1005 | uspi->s_3apb = 1 << uspi->s_3apbshift; |
| 1006 | uspi->s_apbmask = uspi->s_apb - 1; |
| 1007 | uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; |
| 1008 | uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; |
| 1009 | uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; |
| 1010 | uspi->s_bpf = uspi->s_fsize << 3; |
| 1011 | uspi->s_bpfshift = uspi->s_fshift + 3; |
| 1012 | uspi->s_bpfmask = uspi->s_bpf - 1; |
| 1013 | if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == |
| 1014 | UFS_MOUNT_UFSTYPE_44BSD) |
| 1015 | uspi->s_maxsymlinklen = |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1016 | fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | |
| 1018 | sbi->s_flags = flags; |
| 1019 | |
| 1020 | inode = iget(sb, UFS_ROOTINO); |
| 1021 | if (!inode || is_bad_inode(inode)) |
| 1022 | goto failed; |
| 1023 | sb->s_root = d_alloc_root(inode); |
| 1024 | if (!sb->s_root) |
| 1025 | goto dalloc_failed; |
| 1026 | |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1027 | ufs_setup_cstotal(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | /* |
| 1029 | * Read cylinder group structures |
| 1030 | */ |
| 1031 | if (!(sb->s_flags & MS_RDONLY)) |
| 1032 | if (!ufs_read_cylinder_structures(sb)) |
| 1033 | goto failed; |
| 1034 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1035 | UFSD("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | return 0; |
| 1037 | |
| 1038 | dalloc_failed: |
| 1039 | iput(inode); |
| 1040 | failed: |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1041 | if (ubh) |
| 1042 | ubh_brelse_uspi (uspi); |
| 1043 | kfree (uspi); |
| 1044 | kfree(sbi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | sb->s_fs_info = NULL; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1046 | UFSD("EXIT (FAILED)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | return -EINVAL; |
| 1048 | |
| 1049 | failed_nomem: |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1050 | UFSD("EXIT (NOMEM)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | return -ENOMEM; |
| 1052 | } |
| 1053 | |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1054 | static void ufs_write_super(struct super_block *sb) |
| 1055 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | struct ufs_sb_private_info * uspi; |
| 1057 | struct ufs_super_block_first * usb1; |
| 1058 | struct ufs_super_block_third * usb3; |
| 1059 | unsigned flags; |
| 1060 | |
| 1061 | lock_kernel(); |
| 1062 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1063 | UFSD("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | flags = UFS_SB(sb)->s_flags; |
| 1065 | uspi = UFS_SB(sb)->s_uspi; |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 1066 | usb1 = ubh_get_usb_first(uspi); |
| 1067 | usb3 = ubh_get_usb_third(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | |
| 1069 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1070 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
| 1071 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN |
| 1072 | || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
| 1073 | ufs_set_fs_state(sb, usb1, usb3, |
| 1074 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1075 | ufs_put_cstotal(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | } |
| 1077 | sb->s_dirt = 0; |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1078 | UFSD("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | unlock_kernel(); |
| 1080 | } |
| 1081 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1082 | static void ufs_put_super(struct super_block *sb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | { |
| 1084 | struct ufs_sb_info * sbi = UFS_SB(sb); |
| 1085 | |
Evgeniy Dushistov | abf5d15 | 2006-06-25 05:47:24 -0700 | [diff] [blame] | 1086 | UFSD("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | |
| 1088 | if (!(sb->s_flags & MS_RDONLY)) |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1089 | ufs_put_super_internal(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | |
| 1091 | ubh_brelse_uspi (sbi->s_uspi); |
| 1092 | kfree (sbi->s_uspi); |
| 1093 | kfree (sbi); |
| 1094 | sb->s_fs_info = NULL; |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1095 | UFSD("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | return; |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) |
| 1101 | { |
| 1102 | struct ufs_sb_private_info * uspi; |
| 1103 | struct ufs_super_block_first * usb1; |
| 1104 | struct ufs_super_block_third * usb3; |
| 1105 | unsigned new_mount_opt, ufstype; |
| 1106 | unsigned flags; |
| 1107 | |
| 1108 | uspi = UFS_SB(sb)->s_uspi; |
| 1109 | flags = UFS_SB(sb)->s_flags; |
Evgeniy | 7b4ee73 | 2006-01-14 11:42:06 +0300 | [diff] [blame] | 1110 | usb1 = ubh_get_usb_first(uspi); |
| 1111 | usb3 = ubh_get_usb_third(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | |
| 1113 | /* |
| 1114 | * Allow the "check" option to be passed as a remount option. |
| 1115 | * It is not possible to change ufstype option during remount |
| 1116 | */ |
| 1117 | ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; |
| 1118 | new_mount_opt = 0; |
| 1119 | ufs_set_opt (new_mount_opt, ONERROR_LOCK); |
| 1120 | if (!ufs_parse_options (data, &new_mount_opt)) |
| 1121 | return -EINVAL; |
| 1122 | if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { |
| 1123 | new_mount_opt |= ufstype; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1124 | } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | printk("ufstype can't be changed during remount\n"); |
| 1126 | return -EINVAL; |
| 1127 | } |
| 1128 | |
| 1129 | if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { |
| 1130 | UFS_SB(sb)->s_mount_opt = new_mount_opt; |
| 1131 | return 0; |
| 1132 | } |
| 1133 | |
| 1134 | /* |
| 1135 | * fs was mouted as rw, remounting ro |
| 1136 | */ |
| 1137 | if (*mount_flags & MS_RDONLY) { |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1138 | ufs_put_super_internal(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
| 1140 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN |
| 1141 | || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
| 1142 | ufs_set_fs_state(sb, usb1, usb3, |
| 1143 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); |
Evgeniy Dushistov | 9695ef1 | 2006-06-25 05:47:22 -0700 | [diff] [blame] | 1144 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | sb->s_dirt = 0; |
| 1146 | sb->s_flags |= MS_RDONLY; |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1147 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | /* |
| 1149 | * fs was mounted as ro, remounting rw |
| 1150 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | #ifndef CONFIG_UFS_FS_WRITE |
| 1152 | printk("ufs was compiled with read-only support, " |
| 1153 | "can't be mounted as read-write\n"); |
| 1154 | return -EINVAL; |
| 1155 | #else |
| 1156 | if (ufstype != UFS_MOUNT_UFSTYPE_SUN && |
| 1157 | ufstype != UFS_MOUNT_UFSTYPE_44BSD && |
| 1158 | ufstype != UFS_MOUNT_UFSTYPE_SUNx86) { |
| 1159 | printk("this ufstype is read-only supported\n"); |
| 1160 | return -EINVAL; |
| 1161 | } |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1162 | if (!ufs_read_cylinder_structures(sb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | printk("failed during remounting\n"); |
| 1164 | return -EPERM; |
| 1165 | } |
| 1166 | sb->s_flags &= ~MS_RDONLY; |
| 1167 | #endif |
| 1168 | } |
| 1169 | UFS_SB(sb)->s_mount_opt = new_mount_opt; |
| 1170 | return 0; |
| 1171 | } |
| 1172 | |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1173 | static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1174 | { |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1175 | struct super_block *sb = dentry->d_sb; |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1176 | struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; |
| 1177 | unsigned flags = UFS_SB(sb)->s_flags; |
| 1178 | struct ufs_super_block_first *usb1; |
| 1179 | struct ufs_super_block_second *usb2; |
| 1180 | struct ufs_super_block_third *usb3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | |
| 1182 | lock_kernel(); |
| 1183 | |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1184 | usb1 = ubh_get_usb_first(uspi); |
| 1185 | usb2 = ubh_get_usb_second(uspi); |
| 1186 | usb3 = ubh_get_usb_third(uspi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { |
| 1189 | buf->f_type = UFS2_MAGIC; |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1190 | buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); |
Evgeniy Dushistov | 647b7e8 | 2006-06-25 05:47:29 -0700 | [diff] [blame] | 1191 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | buf->f_type = UFS_MAGIC; |
| 1193 | buf->f_blocks = uspi->s_dsize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | } |
Evgeniy Dushistov | ee3ffd6 | 2006-06-25 05:47:30 -0700 | [diff] [blame] | 1195 | buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + |
| 1196 | uspi->cs_total.cs_nffree; |
| 1197 | buf->f_ffree = uspi->cs_total.cs_nifree; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | buf->f_bsize = sb->s_blocksize; |
| 1199 | buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) |
| 1200 | ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; |
| 1201 | buf->f_files = uspi->s_ncg * uspi->s_ipg; |
| 1202 | buf->f_namelen = UFS_MAXNAMLEN; |
| 1203 | |
| 1204 | unlock_kernel(); |
| 1205 | |
| 1206 | return 0; |
| 1207 | } |
| 1208 | |
| 1209 | static kmem_cache_t * ufs_inode_cachep; |
| 1210 | |
| 1211 | static struct inode *ufs_alloc_inode(struct super_block *sb) |
| 1212 | { |
| 1213 | struct ufs_inode_info *ei; |
| 1214 | ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, SLAB_KERNEL); |
| 1215 | if (!ei) |
| 1216 | return NULL; |
| 1217 | ei->vfs_inode.i_version = 1; |
| 1218 | return &ei->vfs_inode; |
| 1219 | } |
| 1220 | |
| 1221 | static void ufs_destroy_inode(struct inode *inode) |
| 1222 | { |
| 1223 | kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); |
| 1224 | } |
| 1225 | |
| 1226 | static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) |
| 1227 | { |
| 1228 | struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; |
| 1229 | |
| 1230 | if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == |
| 1231 | SLAB_CTOR_CONSTRUCTOR) |
| 1232 | inode_init_once(&ei->vfs_inode); |
| 1233 | } |
| 1234 | |
| 1235 | static int init_inodecache(void) |
| 1236 | { |
| 1237 | ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", |
| 1238 | sizeof(struct ufs_inode_info), |
Paul Jackson | fffb60f | 2006-03-24 03:16:06 -0800 | [diff] [blame] | 1239 | 0, (SLAB_RECLAIM_ACCOUNT| |
| 1240 | SLAB_MEM_SPREAD), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1241 | init_once, NULL); |
| 1242 | if (ufs_inode_cachep == NULL) |
| 1243 | return -ENOMEM; |
| 1244 | return 0; |
| 1245 | } |
| 1246 | |
| 1247 | static void destroy_inodecache(void) |
| 1248 | { |
| 1249 | if (kmem_cache_destroy(ufs_inode_cachep)) |
| 1250 | printk(KERN_INFO "ufs_inode_cache: not all structures were freed\n"); |
| 1251 | } |
| 1252 | |
| 1253 | #ifdef CONFIG_QUOTA |
| 1254 | static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t); |
| 1255 | static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t); |
| 1256 | #endif |
| 1257 | |
| 1258 | static struct super_operations ufs_super_ops = { |
| 1259 | .alloc_inode = ufs_alloc_inode, |
| 1260 | .destroy_inode = ufs_destroy_inode, |
| 1261 | .read_inode = ufs_read_inode, |
| 1262 | .write_inode = ufs_write_inode, |
| 1263 | .delete_inode = ufs_delete_inode, |
| 1264 | .put_super = ufs_put_super, |
| 1265 | .write_super = ufs_write_super, |
| 1266 | .statfs = ufs_statfs, |
| 1267 | .remount_fs = ufs_remount, |
| 1268 | #ifdef CONFIG_QUOTA |
| 1269 | .quota_read = ufs_quota_read, |
| 1270 | .quota_write = ufs_quota_write, |
| 1271 | #endif |
| 1272 | }; |
| 1273 | |
| 1274 | #ifdef CONFIG_QUOTA |
| 1275 | |
| 1276 | /* Read data from quotafile - avoid pagecache and such because we cannot afford |
| 1277 | * acquiring the locks... As quota files are never truncated and quota code |
| 1278 | * itself serializes the operations (and noone else should touch the files) |
| 1279 | * we don't have to be afraid of races */ |
| 1280 | static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data, |
| 1281 | size_t len, loff_t off) |
| 1282 | { |
| 1283 | struct inode *inode = sb_dqopt(sb)->files[type]; |
| 1284 | sector_t blk = off >> sb->s_blocksize_bits; |
| 1285 | int err = 0; |
| 1286 | int offset = off & (sb->s_blocksize - 1); |
| 1287 | int tocopy; |
| 1288 | size_t toread; |
| 1289 | struct buffer_head *bh; |
| 1290 | loff_t i_size = i_size_read(inode); |
| 1291 | |
| 1292 | if (off > i_size) |
| 1293 | return 0; |
| 1294 | if (off+len > i_size) |
| 1295 | len = i_size-off; |
| 1296 | toread = len; |
| 1297 | while (toread > 0) { |
| 1298 | tocopy = sb->s_blocksize - offset < toread ? |
| 1299 | sb->s_blocksize - offset : toread; |
| 1300 | |
| 1301 | bh = ufs_bread(inode, blk, 0, &err); |
| 1302 | if (err) |
| 1303 | return err; |
| 1304 | if (!bh) /* A hole? */ |
| 1305 | memset(data, 0, tocopy); |
| 1306 | else { |
| 1307 | memcpy(data, bh->b_data+offset, tocopy); |
| 1308 | brelse(bh); |
| 1309 | } |
| 1310 | offset = 0; |
| 1311 | toread -= tocopy; |
| 1312 | data += tocopy; |
| 1313 | blk++; |
| 1314 | } |
| 1315 | return len; |
| 1316 | } |
| 1317 | |
| 1318 | /* Write to quotafile */ |
| 1319 | static ssize_t ufs_quota_write(struct super_block *sb, int type, |
| 1320 | const char *data, size_t len, loff_t off) |
| 1321 | { |
| 1322 | struct inode *inode = sb_dqopt(sb)->files[type]; |
| 1323 | sector_t blk = off >> sb->s_blocksize_bits; |
| 1324 | int err = 0; |
| 1325 | int offset = off & (sb->s_blocksize - 1); |
| 1326 | int tocopy; |
| 1327 | size_t towrite = len; |
| 1328 | struct buffer_head *bh; |
| 1329 | |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1330 | mutex_lock(&inode->i_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | while (towrite > 0) { |
| 1332 | tocopy = sb->s_blocksize - offset < towrite ? |
| 1333 | sb->s_blocksize - offset : towrite; |
| 1334 | |
| 1335 | bh = ufs_bread(inode, blk, 1, &err); |
| 1336 | if (!bh) |
| 1337 | goto out; |
| 1338 | lock_buffer(bh); |
| 1339 | memcpy(bh->b_data+offset, data, tocopy); |
| 1340 | flush_dcache_page(bh->b_page); |
| 1341 | set_buffer_uptodate(bh); |
| 1342 | mark_buffer_dirty(bh); |
| 1343 | unlock_buffer(bh); |
| 1344 | brelse(bh); |
| 1345 | offset = 0; |
| 1346 | towrite -= tocopy; |
| 1347 | data += tocopy; |
| 1348 | blk++; |
| 1349 | } |
| 1350 | out: |
Evgeniy Polyakov | 15b2fe3 | 2006-01-08 01:04:51 -0800 | [diff] [blame] | 1351 | if (len == towrite) { |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1352 | mutex_unlock(&inode->i_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | return err; |
Evgeniy Polyakov | 15b2fe3 | 2006-01-08 01:04:51 -0800 | [diff] [blame] | 1354 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | if (inode->i_size < off+len-towrite) |
| 1356 | i_size_write(inode, off+len-towrite); |
| 1357 | inode->i_version++; |
| 1358 | inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; |
| 1359 | mark_inode_dirty(inode); |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 1360 | mutex_unlock(&inode->i_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | return len - towrite; |
| 1362 | } |
| 1363 | |
| 1364 | #endif |
| 1365 | |
David Howells | 454e239 | 2006-06-23 02:02:57 -0700 | [diff] [blame] | 1366 | static int ufs_get_sb(struct file_system_type *fs_type, |
| 1367 | int flags, const char *dev_name, void *data, struct vfsmount *mnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | { |
David Howells | 454e239 | 2006-06-23 02:02:57 -0700 | [diff] [blame] | 1369 | return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | } |
| 1371 | |
| 1372 | static struct file_system_type ufs_fs_type = { |
| 1373 | .owner = THIS_MODULE, |
| 1374 | .name = "ufs", |
| 1375 | .get_sb = ufs_get_sb, |
| 1376 | .kill_sb = kill_block_super, |
| 1377 | .fs_flags = FS_REQUIRES_DEV, |
| 1378 | }; |
| 1379 | |
| 1380 | static int __init init_ufs_fs(void) |
| 1381 | { |
| 1382 | int err = init_inodecache(); |
| 1383 | if (err) |
| 1384 | goto out1; |
| 1385 | err = register_filesystem(&ufs_fs_type); |
| 1386 | if (err) |
| 1387 | goto out; |
| 1388 | return 0; |
| 1389 | out: |
| 1390 | destroy_inodecache(); |
| 1391 | out1: |
| 1392 | return err; |
| 1393 | } |
| 1394 | |
| 1395 | static void __exit exit_ufs_fs(void) |
| 1396 | { |
| 1397 | unregister_filesystem(&ufs_fs_type); |
| 1398 | destroy_inodecache(); |
| 1399 | } |
| 1400 | |
| 1401 | module_init(init_ufs_fs) |
| 1402 | module_exit(exit_ufs_fs) |
| 1403 | MODULE_LICENSE("GPL"); |