Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | |
f762dd68 | 44 | * Gertjan van Wingerde <gwingerde@gmail.com> |
1da177e4 LT |
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 | * | |
cbcae39f ED |
64 | * UFS2 write support added by |
65 | * Evgeniy Dushistov <dushistov@mail.ru>, 2007 | |
1da177e4 LT |
66 | */ |
67 | ||
68 | ||
f3e2a520 | 69 | #include <linux/exportfs.h> |
1da177e4 LT |
70 | #include <linux/module.h> |
71 | #include <linux/bitops.h> | |
72 | ||
73 | #include <stdarg.h> | |
74 | ||
75 | #include <asm/uaccess.h> | |
76 | #include <asm/system.h> | |
77 | ||
78 | #include <linux/errno.h> | |
79 | #include <linux/fs.h> | |
1da177e4 LT |
80 | #include <linux/slab.h> |
81 | #include <linux/time.h> | |
82 | #include <linux/stat.h> | |
83 | #include <linux/string.h> | |
84 | #include <linux/blkdev.h> | |
85 | #include <linux/init.h> | |
86 | #include <linux/parser.h> | |
87 | #include <linux/smp_lock.h> | |
88 | #include <linux/buffer_head.h> | |
89 | #include <linux/vfs.h> | |
9e8c4273 | 90 | #include <linux/log2.h> |
2a9807c0 ED |
91 | #include <linux/mount.h> |
92 | #include <linux/seq_file.h> | |
1da177e4 | 93 | |
e5420598 | 94 | #include "ufs_fs.h" |
bcd6d4ec | 95 | #include "ufs.h" |
1da177e4 LT |
96 | #include "swab.h" |
97 | #include "util.h" | |
98 | ||
f3e2a520 AD |
99 | static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) |
100 | { | |
101 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
102 | struct inode *inode; | |
103 | ||
104 | if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) | |
105 | return ERR_PTR(-ESTALE); | |
106 | ||
107 | inode = ufs_iget(sb, ino); | |
108 | if (IS_ERR(inode)) | |
109 | return ERR_CAST(inode); | |
110 | if (generation && inode->i_generation != generation) { | |
111 | iput(inode); | |
112 | return ERR_PTR(-ESTALE); | |
113 | } | |
114 | return inode; | |
115 | } | |
116 | ||
117 | static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
118 | int fh_len, int fh_type) | |
119 | { | |
120 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); | |
121 | } | |
122 | ||
123 | static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
124 | int fh_len, int fh_type) | |
125 | { | |
126 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); | |
127 | } | |
128 | ||
129 | static struct dentry *ufs_get_parent(struct dentry *child) | |
130 | { | |
131 | struct qstr dot_dot = { | |
132 | .name = "..", | |
133 | .len = 2, | |
134 | }; | |
135 | ino_t ino; | |
136 | ||
137 | ino = ufs_inode_by_name(child->d_inode, &dot_dot); | |
138 | if (!ino) | |
139 | return ERR_PTR(-ENOENT); | |
140 | return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); | |
141 | } | |
142 | ||
143 | static const struct export_operations ufs_export_ops = { | |
144 | .fh_to_dentry = ufs_fh_to_dentry, | |
145 | .fh_to_parent = ufs_fh_to_parent, | |
146 | .get_parent = ufs_get_parent, | |
147 | }; | |
148 | ||
abf5d15f | 149 | #ifdef CONFIG_UFS_DEBUG |
1da177e4 LT |
150 | /* |
151 | * Print contents of ufs_super_block, useful for debugging | |
152 | */ | |
3313e292 | 153 | static void ufs_print_super_stuff(struct super_block *sb, |
647b7e87 ED |
154 | struct ufs_super_block_first *usb1, |
155 | struct ufs_super_block_second *usb2, | |
156 | struct ufs_super_block_third *usb3) | |
1da177e4 | 157 | { |
3313e292 ED |
158 | u32 magic = fs32_to_cpu(sb, usb3->fs_magic); |
159 | ||
1da177e4 | 160 | printk("ufs_print_super_stuff\n"); |
3313e292 ED |
161 | printk(" magic: 0x%x\n", magic); |
162 | if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { | |
647b7e87 ED |
163 | printk(" fs_size: %llu\n", (unsigned long long) |
164 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); | |
165 | printk(" fs_dsize: %llu\n", (unsigned long long) | |
166 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); | |
167 | printk(" bsize: %u\n", | |
168 | fs32_to_cpu(sb, usb1->fs_bsize)); | |
169 | printk(" fsize: %u\n", | |
170 | fs32_to_cpu(sb, usb1->fs_fsize)); | |
171 | printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); | |
172 | printk(" fs_sblockloc: %llu\n", (unsigned long long) | |
173 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); | |
174 | printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) | |
175 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); | |
176 | printk(" cs_nbfree(No of free blocks): %llu\n", | |
177 | (unsigned long long) | |
178 | fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); | |
3313e292 ED |
179 | printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", |
180 | (unsigned long long) | |
181 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); | |
182 | printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", | |
183 | (unsigned long long) | |
184 | fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); | |
90b315af ED |
185 | printk(KERN_INFO" fs_maxsymlinklen: %u\n", |
186 | fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); | |
647b7e87 ED |
187 | } else { |
188 | printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); | |
189 | printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); | |
190 | printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); | |
191 | printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); | |
192 | printk(" cgoffset: %u\n", | |
193 | fs32_to_cpu(sb, usb1->fs_cgoffset)); | |
194 | printk(" ~cgmask: 0x%x\n", | |
195 | ~fs32_to_cpu(sb, usb1->fs_cgmask)); | |
196 | printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); | |
197 | printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); | |
198 | printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); | |
199 | printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); | |
200 | printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); | |
201 | printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); | |
202 | printk(" fragshift: %u\n", | |
203 | fs32_to_cpu(sb, usb1->fs_fragshift)); | |
204 | printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); | |
205 | printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); | |
206 | printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); | |
207 | printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); | |
208 | printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); | |
209 | printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); | |
210 | printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); | |
211 | printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); | |
212 | printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); | |
213 | printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); | |
214 | printk(" fstodb: %u\n", | |
215 | fs32_to_cpu(sb, usb1->fs_fsbtodb)); | |
216 | printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); | |
217 | printk(" ndir %u\n", | |
218 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); | |
219 | printk(" nifree %u\n", | |
220 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); | |
221 | printk(" nbfree %u\n", | |
222 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); | |
223 | printk(" nffree %u\n", | |
224 | fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); | |
225 | } | |
1da177e4 LT |
226 | printk("\n"); |
227 | } | |
228 | ||
229 | /* | |
230 | * Print contents of ufs_cylinder_group, useful for debugging | |
231 | */ | |
647b7e87 ED |
232 | static void ufs_print_cylinder_stuff(struct super_block *sb, |
233 | struct ufs_cylinder_group *cg) | |
1da177e4 LT |
234 | { |
235 | printk("\nufs_print_cylinder_stuff\n"); | |
96710b29 | 236 | printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); |
1da177e4 LT |
237 | printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); |
238 | printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); | |
239 | printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); | |
240 | printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); | |
241 | printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); | |
242 | printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); | |
243 | printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); | |
244 | printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); | |
245 | printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); | |
246 | printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); | |
247 | printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); | |
248 | printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); | |
249 | printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); | |
250 | printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", | |
251 | fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), | |
252 | fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), | |
253 | fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), | |
254 | fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); | |
255 | printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); | |
256 | printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); | |
257 | printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); | |
258 | printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); | |
259 | printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); | |
647b7e87 ED |
260 | printk(" clustersumoff %u\n", |
261 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); | |
262 | printk(" clusteroff %u\n", | |
263 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); | |
264 | printk(" nclusterblks %u\n", | |
265 | fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); | |
1da177e4 LT |
266 | printk("\n"); |
267 | } | |
647b7e87 | 268 | #else |
3313e292 | 269 | # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ |
647b7e87 | 270 | # define ufs_print_cylinder_stuff(sb, cg) /**/ |
abf5d15f | 271 | #endif /* CONFIG_UFS_DEBUG */ |
1da177e4 | 272 | |
ee9b6d61 | 273 | static const struct super_operations ufs_super_ops; |
1da177e4 LT |
274 | |
275 | static char error_buf[1024]; | |
276 | ||
277 | void ufs_error (struct super_block * sb, const char * function, | |
278 | const char * fmt, ...) | |
279 | { | |
280 | struct ufs_sb_private_info * uspi; | |
281 | struct ufs_super_block_first * usb1; | |
282 | va_list args; | |
283 | ||
284 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e | 285 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
286 | |
287 | if (!(sb->s_flags & MS_RDONLY)) { | |
288 | usb1->fs_clean = UFS_FSBAD; | |
9695ef16 | 289 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
1da177e4 LT |
290 | sb->s_dirt = 1; |
291 | sb->s_flags |= MS_RDONLY; | |
292 | } | |
293 | va_start (args, fmt); | |
4a6e617a | 294 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
295 | va_end (args); |
296 | switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { | |
297 | case UFS_MOUNT_ONERROR_PANIC: | |
298 | panic ("UFS-fs panic (device %s): %s: %s\n", | |
299 | sb->s_id, function, error_buf); | |
300 | ||
301 | case UFS_MOUNT_ONERROR_LOCK: | |
302 | case UFS_MOUNT_ONERROR_UMOUNT: | |
303 | case UFS_MOUNT_ONERROR_REPAIR: | |
304 | printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", | |
305 | sb->s_id, function, error_buf); | |
306 | } | |
307 | } | |
308 | ||
309 | void ufs_panic (struct super_block * sb, const char * function, | |
310 | const char * fmt, ...) | |
311 | { | |
312 | struct ufs_sb_private_info * uspi; | |
313 | struct ufs_super_block_first * usb1; | |
314 | va_list args; | |
315 | ||
337eb00a | 316 | lock_kernel(); |
1da177e4 | 317 | uspi = UFS_SB(sb)->s_uspi; |
7b4ee73e | 318 | usb1 = ubh_get_usb_first(uspi); |
1da177e4 LT |
319 | |
320 | if (!(sb->s_flags & MS_RDONLY)) { | |
321 | usb1->fs_clean = UFS_FSBAD; | |
9695ef16 | 322 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); |
1da177e4 LT |
323 | sb->s_dirt = 1; |
324 | } | |
325 | va_start (args, fmt); | |
4a6e617a | 326 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
327 | va_end (args); |
328 | sb->s_flags |= MS_RDONLY; | |
329 | printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", | |
330 | sb->s_id, function, error_buf); | |
331 | } | |
332 | ||
333 | void ufs_warning (struct super_block * sb, const char * function, | |
334 | const char * fmt, ...) | |
335 | { | |
336 | va_list args; | |
337 | ||
338 | va_start (args, fmt); | |
4a6e617a | 339 | vsnprintf (error_buf, sizeof(error_buf), fmt, args); |
1da177e4 LT |
340 | va_end (args); |
341 | printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", | |
342 | sb->s_id, function, error_buf); | |
343 | } | |
344 | ||
345 | enum { | |
2a9807c0 ED |
346 | Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, |
347 | Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, | |
348 | Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, | |
349 | Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, | |
350 | Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, | |
351 | Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, | |
352 | Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, | |
353 | Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, | |
354 | Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, | |
355 | Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, | |
356 | Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, | |
357 | Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, | |
358 | Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, | |
359 | Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, | |
360 | Opt_err | |
1da177e4 LT |
361 | }; |
362 | ||
a447c093 | 363 | static const match_table_t tokens = { |
1da177e4 LT |
364 | {Opt_type_old, "ufstype=old"}, |
365 | {Opt_type_sunx86, "ufstype=sunx86"}, | |
366 | {Opt_type_sun, "ufstype=sun"}, | |
252e211e | 367 | {Opt_type_sunos, "ufstype=sunos"}, |
1da177e4 LT |
368 | {Opt_type_44bsd, "ufstype=44bsd"}, |
369 | {Opt_type_ufs2, "ufstype=ufs2"}, | |
370 | {Opt_type_ufs2, "ufstype=5xbsd"}, | |
371 | {Opt_type_hp, "ufstype=hp"}, | |
372 | {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, | |
373 | {Opt_type_nextstep, "ufstype=nextstep"}, | |
374 | {Opt_type_openstep, "ufstype=openstep"}, | |
2a9807c0 | 375 | /*end of possible ufs types */ |
1da177e4 LT |
376 | {Opt_onerror_panic, "onerror=panic"}, |
377 | {Opt_onerror_lock, "onerror=lock"}, | |
378 | {Opt_onerror_umount, "onerror=umount"}, | |
379 | {Opt_onerror_repair, "onerror=repair"}, | |
380 | {Opt_err, NULL} | |
381 | }; | |
382 | ||
383 | static int ufs_parse_options (char * options, unsigned * mount_options) | |
384 | { | |
385 | char * p; | |
386 | ||
abf5d15f | 387 | UFSD("ENTER\n"); |
1da177e4 LT |
388 | |
389 | if (!options) | |
390 | return 1; | |
391 | ||
392 | while ((p = strsep(&options, ",")) != NULL) { | |
393 | substring_t args[MAX_OPT_ARGS]; | |
394 | int token; | |
395 | if (!*p) | |
396 | continue; | |
397 | ||
398 | token = match_token(p, tokens, args); | |
399 | switch (token) { | |
400 | case Opt_type_old: | |
401 | ufs_clear_opt (*mount_options, UFSTYPE); | |
402 | ufs_set_opt (*mount_options, UFSTYPE_OLD); | |
403 | break; | |
404 | case Opt_type_sunx86: | |
405 | ufs_clear_opt (*mount_options, UFSTYPE); | |
406 | ufs_set_opt (*mount_options, UFSTYPE_SUNx86); | |
407 | break; | |
408 | case Opt_type_sun: | |
409 | ufs_clear_opt (*mount_options, UFSTYPE); | |
410 | ufs_set_opt (*mount_options, UFSTYPE_SUN); | |
411 | break; | |
252e211e MF |
412 | case Opt_type_sunos: |
413 | ufs_clear_opt(*mount_options, UFSTYPE); | |
414 | ufs_set_opt(*mount_options, UFSTYPE_SUNOS); | |
415 | break; | |
1da177e4 LT |
416 | case Opt_type_44bsd: |
417 | ufs_clear_opt (*mount_options, UFSTYPE); | |
418 | ufs_set_opt (*mount_options, UFSTYPE_44BSD); | |
419 | break; | |
420 | case Opt_type_ufs2: | |
421 | ufs_clear_opt(*mount_options, UFSTYPE); | |
422 | ufs_set_opt(*mount_options, UFSTYPE_UFS2); | |
423 | break; | |
424 | case Opt_type_hp: | |
425 | ufs_clear_opt (*mount_options, UFSTYPE); | |
426 | ufs_set_opt (*mount_options, UFSTYPE_HP); | |
427 | break; | |
428 | case Opt_type_nextstepcd: | |
429 | ufs_clear_opt (*mount_options, UFSTYPE); | |
430 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); | |
431 | break; | |
432 | case Opt_type_nextstep: | |
433 | ufs_clear_opt (*mount_options, UFSTYPE); | |
434 | ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); | |
435 | break; | |
436 | case Opt_type_openstep: | |
437 | ufs_clear_opt (*mount_options, UFSTYPE); | |
438 | ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); | |
439 | break; | |
440 | case Opt_onerror_panic: | |
441 | ufs_clear_opt (*mount_options, ONERROR); | |
442 | ufs_set_opt (*mount_options, ONERROR_PANIC); | |
443 | break; | |
444 | case Opt_onerror_lock: | |
445 | ufs_clear_opt (*mount_options, ONERROR); | |
446 | ufs_set_opt (*mount_options, ONERROR_LOCK); | |
447 | break; | |
448 | case Opt_onerror_umount: | |
449 | ufs_clear_opt (*mount_options, ONERROR); | |
450 | ufs_set_opt (*mount_options, ONERROR_UMOUNT); | |
451 | break; | |
452 | case Opt_onerror_repair: | |
453 | printk("UFS-fs: Unable to do repair on error, " | |
454 | "will lock lock instead\n"); | |
455 | ufs_clear_opt (*mount_options, ONERROR); | |
456 | ufs_set_opt (*mount_options, ONERROR_REPAIR); | |
457 | break; | |
458 | default: | |
459 | printk("UFS-fs: Invalid option: \"%s\" " | |
460 | "or missing value\n", p); | |
461 | return 0; | |
462 | } | |
463 | } | |
464 | return 1; | |
465 | } | |
466 | ||
467 | /* | |
ee3ffd6c ED |
468 | * Diffrent types of UFS hold fs_cstotal in different |
469 | * places, and use diffrent data structure for it. | |
470 | * To make things simplier we just copy fs_cstotal to ufs_sb_private_info | |
1da177e4 | 471 | */ |
ee3ffd6c | 472 | static void ufs_setup_cstotal(struct super_block *sb) |
e295cfcb | 473 | { |
647b7e87 ED |
474 | struct ufs_sb_info *sbi = UFS_SB(sb); |
475 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
ee3ffd6c ED |
476 | struct ufs_super_block_first *usb1; |
477 | struct ufs_super_block_second *usb2; | |
647b7e87 | 478 | struct ufs_super_block_third *usb3; |
ee3ffd6c ED |
479 | unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; |
480 | ||
481 | UFSD("ENTER, mtype=%u\n", mtype); | |
482 | usb1 = ubh_get_usb_first(uspi); | |
483 | usb2 = ubh_get_usb_second(uspi); | |
484 | usb3 = ubh_get_usb_third(uspi); | |
485 | ||
486 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && | |
487 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || | |
488 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { | |
489 | /*we have statistic in different place, then usual*/ | |
490 | uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); | |
491 | uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); | |
492 | uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); | |
493 | uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); | |
494 | } else { | |
495 | uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); | |
496 | uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); | |
497 | uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); | |
498 | uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); | |
499 | } | |
500 | UFSD("EXIT\n"); | |
501 | } | |
502 | ||
503 | /* | |
504 | * Read on-disk structures associated with cylinder groups | |
505 | */ | |
506 | static int ufs_read_cylinder_structures(struct super_block *sb) | |
507 | { | |
508 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
509 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
1da177e4 LT |
510 | struct ufs_buffer_head * ubh; |
511 | unsigned char * base, * space; | |
512 | unsigned size, blks, i; | |
ee3ffd6c ED |
513 | struct ufs_super_block_third *usb3; |
514 | ||
abf5d15f | 515 | UFSD("ENTER\n"); |
1da177e4 | 516 | |
ee3ffd6c | 517 | usb3 = ubh_get_usb_third(uspi); |
1da177e4 LT |
518 | /* |
519 | * Read cs structures from (usually) first data block | |
520 | * on the device. | |
521 | */ | |
522 | size = uspi->s_cssize; | |
523 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; | |
524 | base = space = kmalloc(size, GFP_KERNEL); | |
525 | if (!base) | |
526 | goto failed; | |
e295cfcb | 527 | sbi->s_csp = (struct ufs_csum *)space; |
1da177e4 LT |
528 | for (i = 0; i < blks; i += uspi->s_fpb) { |
529 | size = uspi->s_bsize; | |
530 | if (i + uspi->s_fpb > blks) | |
531 | size = (blks - i) * uspi->s_fsize; | |
532 | ||
3313e292 | 533 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
7b4ee73e E |
534 | |
535 | if (!ubh) | |
536 | goto failed; | |
537 | ||
538 | ubh_ubhcpymem (space, ubh, size); | |
7b4ee73e | 539 | |
1da177e4 LT |
540 | space += size; |
541 | ubh_brelse (ubh); | |
542 | ubh = NULL; | |
543 | } | |
544 | ||
545 | /* | |
546 | * Read cylinder group (we read only first fragment from block | |
547 | * at this time) and prepare internal data structures for cg caching. | |
548 | */ | |
549 | if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) | |
550 | goto failed; | |
551 | for (i = 0; i < uspi->s_ncg; i++) | |
552 | sbi->s_ucg[i] = NULL; | |
553 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { | |
554 | sbi->s_ucpi[i] = NULL; | |
555 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; | |
556 | } | |
557 | for (i = 0; i < uspi->s_ncg; i++) { | |
abf5d15f | 558 | UFSD("read cg %u\n", i); |
1da177e4 LT |
559 | if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) |
560 | goto failed; | |
561 | if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) | |
562 | goto failed; | |
647b7e87 | 563 | |
1da177e4 | 564 | ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); |
1da177e4 LT |
565 | } |
566 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { | |
567 | if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) | |
568 | goto failed; | |
569 | sbi->s_cgno[i] = UFS_CGNO_EMPTY; | |
570 | } | |
571 | sbi->s_cg_loaded = 0; | |
abf5d15f | 572 | UFSD("EXIT\n"); |
1da177e4 LT |
573 | return 1; |
574 | ||
575 | failed: | |
f99d49ad | 576 | kfree (base); |
1da177e4 LT |
577 | if (sbi->s_ucg) { |
578 | for (i = 0; i < uspi->s_ncg; i++) | |
f99d49ad JJ |
579 | if (sbi->s_ucg[i]) |
580 | brelse (sbi->s_ucg[i]); | |
1da177e4 LT |
581 | kfree (sbi->s_ucg); |
582 | for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) | |
f99d49ad | 583 | kfree (sbi->s_ucpi[i]); |
1da177e4 | 584 | } |
abf5d15f | 585 | UFSD("EXIT (FAILED)\n"); |
1da177e4 LT |
586 | return 0; |
587 | } | |
588 | ||
589 | /* | |
ee3ffd6c | 590 | * Sync our internal copy of fs_cstotal with disk |
1da177e4 | 591 | */ |
ee3ffd6c | 592 | static void ufs_put_cstotal(struct super_block *sb) |
e295cfcb | 593 | { |
ee3ffd6c ED |
594 | unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; |
595 | struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; | |
596 | struct ufs_super_block_first *usb1; | |
597 | struct ufs_super_block_second *usb2; | |
598 | struct ufs_super_block_third *usb3; | |
599 | ||
600 | UFSD("ENTER\n"); | |
601 | usb1 = ubh_get_usb_first(uspi); | |
602 | usb2 = ubh_get_usb_second(uspi); | |
603 | usb3 = ubh_get_usb_third(uspi); | |
604 | ||
605 | if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && | |
606 | (usb1->fs_flags & UFS_FLAGS_UPDATED)) || | |
607 | mtype == UFS_MOUNT_UFSTYPE_UFS2) { | |
608 | /*we have statistic in different place, then usual*/ | |
609 | usb2->fs_un.fs_u2.cs_ndir = | |
610 | cpu_to_fs64(sb, uspi->cs_total.cs_ndir); | |
611 | usb2->fs_un.fs_u2.cs_nbfree = | |
612 | cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); | |
613 | usb3->fs_un1.fs_u2.cs_nifree = | |
614 | cpu_to_fs64(sb, uspi->cs_total.cs_nifree); | |
615 | usb3->fs_un1.fs_u2.cs_nffree = | |
616 | cpu_to_fs64(sb, uspi->cs_total.cs_nffree); | |
617 | } else { | |
618 | usb1->fs_cstotal.cs_ndir = | |
619 | cpu_to_fs32(sb, uspi->cs_total.cs_ndir); | |
620 | usb1->fs_cstotal.cs_nbfree = | |
621 | cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); | |
622 | usb1->fs_cstotal.cs_nifree = | |
623 | cpu_to_fs32(sb, uspi->cs_total.cs_nifree); | |
624 | usb1->fs_cstotal.cs_nffree = | |
625 | cpu_to_fs32(sb, uspi->cs_total.cs_nffree); | |
626 | } | |
627 | ubh_mark_buffer_dirty(USPI_UBH(uspi)); | |
3313e292 | 628 | ufs_print_super_stuff(sb, usb1, usb2, usb3); |
ee3ffd6c ED |
629 | UFSD("EXIT\n"); |
630 | } | |
631 | ||
632 | /** | |
633 | * ufs_put_super_internal() - put on-disk intrenal structures | |
634 | * @sb: pointer to super_block structure | |
635 | * Put on-disk structures associated with cylinder groups | |
636 | * and write them back to disk, also update cs_total on disk | |
637 | */ | |
638 | static void ufs_put_super_internal(struct super_block *sb) | |
639 | { | |
640 | struct ufs_sb_info *sbi = UFS_SB(sb); | |
641 | struct ufs_sb_private_info *uspi = sbi->s_uspi; | |
1da177e4 LT |
642 | struct ufs_buffer_head * ubh; |
643 | unsigned char * base, * space; | |
644 | unsigned blks, size, i; | |
ee3ffd6c | 645 | |
1da177e4 | 646 | |
abf5d15f | 647 | UFSD("ENTER\n"); |
6cfd0148 CH |
648 | |
649 | lock_kernel(); | |
650 | ||
ee3ffd6c | 651 | ufs_put_cstotal(sb); |
1da177e4 LT |
652 | size = uspi->s_cssize; |
653 | blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; | |
e295cfcb | 654 | base = space = (char*) sbi->s_csp; |
1da177e4 LT |
655 | for (i = 0; i < blks; i += uspi->s_fpb) { |
656 | size = uspi->s_bsize; | |
657 | if (i + uspi->s_fpb > blks) | |
658 | size = (blks - i) * uspi->s_fsize; | |
3313e292 | 659 | |
1da177e4 | 660 | ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
3313e292 | 661 | |
1da177e4 LT |
662 | ubh_memcpyubh (ubh, space, size); |
663 | space += size; | |
664 | ubh_mark_buffer_uptodate (ubh, 1); | |
665 | ubh_mark_buffer_dirty (ubh); | |
666 | ubh_brelse (ubh); | |
667 | } | |
668 | for (i = 0; i < sbi->s_cg_loaded; i++) { | |
669 | ufs_put_cylinder (sb, i); | |
670 | kfree (sbi->s_ucpi[i]); | |
671 | } | |
672 | for (; i < UFS_MAX_GROUP_LOADED; i++) | |
673 | kfree (sbi->s_ucpi[i]); | |
674 | for (i = 0; i < uspi->s_ncg; i++) | |
675 | brelse (sbi->s_ucg[i]); | |
676 | kfree (sbi->s_ucg); | |
677 | kfree (base); | |
6cfd0148 CH |
678 | |
679 | unlock_kernel(); | |
680 | ||
abf5d15f | 681 | UFSD("EXIT\n"); |
1da177e4 LT |
682 | } |
683 | ||
684 | static int ufs_fill_super(struct super_block *sb, void *data, int silent) | |
685 | { | |
686 | struct ufs_sb_info * sbi; | |
687 | struct ufs_sb_private_info * uspi; | |
688 | struct ufs_super_block_first * usb1; | |
689 | struct ufs_super_block_second * usb2; | |
690 | struct ufs_super_block_third * usb3; | |
1da177e4 LT |
691 | struct ufs_buffer_head * ubh; |
692 | struct inode *inode; | |
693 | unsigned block_size, super_block_size; | |
694 | unsigned flags; | |
7b4ee73e | 695 | unsigned super_block_offset; |
9e6766cc | 696 | unsigned maxsymlen; |
b55c460d | 697 | int ret = -EINVAL; |
1da177e4 LT |
698 | |
699 | uspi = NULL; | |
700 | ubh = NULL; | |
701 | flags = 0; | |
702 | ||
abf5d15f | 703 | UFSD("ENTER\n"); |
1da177e4 | 704 | |
f8314dc6 | 705 | sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); |
1da177e4 LT |
706 | if (!sbi) |
707 | goto failed_nomem; | |
708 | sb->s_fs_info = sbi; | |
1da177e4 | 709 | |
abf5d15f | 710 | UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); |
1da177e4 LT |
711 | |
712 | #ifndef CONFIG_UFS_FS_WRITE | |
713 | if (!(sb->s_flags & MS_RDONLY)) { | |
714 | printk("ufs was compiled with read-only support, " | |
715 | "can't be mounted as read-write\n"); | |
716 | goto failed; | |
717 | } | |
718 | #endif | |
719 | /* | |
720 | * Set default mount options | |
721 | * Parse mount options | |
722 | */ | |
723 | sbi->s_mount_opt = 0; | |
724 | ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); | |
725 | if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { | |
726 | printk("wrong mount options\n"); | |
727 | goto failed; | |
728 | } | |
729 | if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { | |
730 | if (!silent) | |
731 | printk("You didn't specify the type of your ufs filesystem\n\n" | |
732 | "mount -t ufs -o ufstype=" | |
c690a722 | 733 | "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" |
1da177e4 LT |
734 | ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " |
735 | "default is ufstype=old\n"); | |
736 | ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); | |
737 | } | |
738 | ||
252e211e MF |
739 | uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); |
740 | sbi->s_uspi = uspi; | |
1da177e4 LT |
741 | if (!uspi) |
742 | goto failed; | |
f336953b | 743 | uspi->s_dirblksize = UFS_SECTOR_SIZE; |
7b4ee73e E |
744 | super_block_offset=UFS_SBLOCK; |
745 | ||
1da177e4 LT |
746 | /* Keep 2Gig file limit. Some UFS variants need to override |
747 | this but as I don't know which I'll let those in the know loosen | |
748 | the rules */ | |
1da177e4 LT |
749 | switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { |
750 | case UFS_MOUNT_UFSTYPE_44BSD: | |
abf5d15f | 751 | UFSD("ufstype=44bsd\n"); |
1da177e4 LT |
752 | uspi->s_fsize = block_size = 512; |
753 | uspi->s_fmask = ~(512 - 1); | |
754 | uspi->s_fshift = 9; | |
755 | uspi->s_sbsize = super_block_size = 1536; | |
756 | uspi->s_sbbase = 0; | |
757 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; | |
758 | break; | |
759 | case UFS_MOUNT_UFSTYPE_UFS2: | |
abf5d15f | 760 | UFSD("ufstype=ufs2\n"); |
7b4ee73e | 761 | super_block_offset=SBLOCK_UFS2; |
1da177e4 LT |
762 | uspi->s_fsize = block_size = 512; |
763 | uspi->s_fmask = ~(512 - 1); | |
764 | uspi->s_fshift = 9; | |
765 | uspi->s_sbsize = super_block_size = 1536; | |
766 | uspi->s_sbbase = 0; | |
767 | flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; | |
1da177e4 LT |
768 | break; |
769 | ||
770 | case UFS_MOUNT_UFSTYPE_SUN: | |
abf5d15f | 771 | UFSD("ufstype=sun\n"); |
1da177e4 LT |
772 | uspi->s_fsize = block_size = 1024; |
773 | uspi->s_fmask = ~(1024 - 1); | |
774 | uspi->s_fshift = 10; | |
775 | uspi->s_sbsize = super_block_size = 2048; | |
776 | uspi->s_sbbase = 0; | |
252e211e | 777 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ |
1da177e4 LT |
778 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; |
779 | break; | |
780 | ||
252e211e MF |
781 | case UFS_MOUNT_UFSTYPE_SUNOS: |
782 | UFSD(("ufstype=sunos\n")) | |
783 | uspi->s_fsize = block_size = 1024; | |
784 | uspi->s_fmask = ~(1024 - 1); | |
785 | uspi->s_fshift = 10; | |
786 | uspi->s_sbsize = 2048; | |
787 | super_block_size = 2048; | |
788 | uspi->s_sbbase = 0; | |
789 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ | |
790 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; | |
791 | break; | |
792 | ||
1da177e4 | 793 | case UFS_MOUNT_UFSTYPE_SUNx86: |
abf5d15f | 794 | UFSD("ufstype=sunx86\n"); |
1da177e4 LT |
795 | uspi->s_fsize = block_size = 1024; |
796 | uspi->s_fmask = ~(1024 - 1); | |
797 | uspi->s_fshift = 10; | |
798 | uspi->s_sbsize = super_block_size = 2048; | |
799 | uspi->s_sbbase = 0; | |
252e211e | 800 | uspi->s_maxsymlinklen = 0; /* Not supported on disk */ |
1da177e4 LT |
801 | flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; |
802 | break; | |
803 | ||
804 | case UFS_MOUNT_UFSTYPE_OLD: | |
abf5d15f | 805 | UFSD("ufstype=old\n"); |
1da177e4 LT |
806 | uspi->s_fsize = block_size = 1024; |
807 | uspi->s_fmask = ~(1024 - 1); | |
808 | uspi->s_fshift = 10; | |
809 | uspi->s_sbsize = super_block_size = 2048; | |
810 | uspi->s_sbbase = 0; | |
811 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; | |
812 | if (!(sb->s_flags & MS_RDONLY)) { | |
813 | if (!silent) | |
814 | printk(KERN_INFO "ufstype=old is supported read-only\n"); | |
815 | sb->s_flags |= MS_RDONLY; | |
816 | } | |
817 | break; | |
818 | ||
819 | case UFS_MOUNT_UFSTYPE_NEXTSTEP: | |
abf5d15f | 820 | UFSD("ufstype=nextstep\n"); |
1da177e4 LT |
821 | uspi->s_fsize = block_size = 1024; |
822 | uspi->s_fmask = ~(1024 - 1); | |
823 | uspi->s_fshift = 10; | |
824 | uspi->s_sbsize = super_block_size = 2048; | |
825 | uspi->s_sbbase = 0; | |
0c664f97 | 826 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
827 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
828 | if (!(sb->s_flags & MS_RDONLY)) { | |
829 | if (!silent) | |
830 | printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); | |
831 | sb->s_flags |= MS_RDONLY; | |
832 | } | |
833 | break; | |
834 | ||
835 | case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: | |
abf5d15f | 836 | UFSD("ufstype=nextstep-cd\n"); |
1da177e4 LT |
837 | uspi->s_fsize = block_size = 2048; |
838 | uspi->s_fmask = ~(2048 - 1); | |
839 | uspi->s_fshift = 11; | |
840 | uspi->s_sbsize = super_block_size = 2048; | |
841 | uspi->s_sbbase = 0; | |
0c664f97 | 842 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
843 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
844 | if (!(sb->s_flags & MS_RDONLY)) { | |
845 | if (!silent) | |
846 | printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); | |
847 | sb->s_flags |= MS_RDONLY; | |
848 | } | |
849 | break; | |
850 | ||
851 | case UFS_MOUNT_UFSTYPE_OPENSTEP: | |
abf5d15f | 852 | UFSD("ufstype=openstep\n"); |
1da177e4 LT |
853 | uspi->s_fsize = block_size = 1024; |
854 | uspi->s_fmask = ~(1024 - 1); | |
855 | uspi->s_fshift = 10; | |
856 | uspi->s_sbsize = super_block_size = 2048; | |
857 | uspi->s_sbbase = 0; | |
f336953b | 858 | uspi->s_dirblksize = 1024; |
1da177e4 LT |
859 | flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
860 | if (!(sb->s_flags & MS_RDONLY)) { | |
861 | if (!silent) | |
862 | printk(KERN_INFO "ufstype=openstep is supported read-only\n"); | |
863 | sb->s_flags |= MS_RDONLY; | |
864 | } | |
865 | break; | |
866 | ||
867 | case UFS_MOUNT_UFSTYPE_HP: | |
abf5d15f | 868 | UFSD("ufstype=hp\n"); |
1da177e4 LT |
869 | uspi->s_fsize = block_size = 1024; |
870 | uspi->s_fmask = ~(1024 - 1); | |
871 | uspi->s_fshift = 10; | |
872 | uspi->s_sbsize = super_block_size = 2048; | |
873 | uspi->s_sbbase = 0; | |
874 | flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; | |
875 | if (!(sb->s_flags & MS_RDONLY)) { | |
876 | if (!silent) | |
877 | printk(KERN_INFO "ufstype=hp is supported read-only\n"); | |
878 | sb->s_flags |= MS_RDONLY; | |
879 | } | |
880 | break; | |
881 | default: | |
882 | if (!silent) | |
883 | printk("unknown ufstype\n"); | |
884 | goto failed; | |
885 | } | |
886 | ||
887 | again: | |
888 | if (!sb_set_blocksize(sb, block_size)) { | |
889 | printk(KERN_ERR "UFS: failed to set blocksize\n"); | |
890 | goto failed; | |
891 | } | |
892 | ||
893 | /* | |
894 | * read ufs super block from device | |
895 | */ | |
7b4ee73e E |
896 | |
897 | ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); | |
898 | ||
1da177e4 LT |
899 | if (!ubh) |
900 | goto failed; | |
901 | ||
7b4ee73e E |
902 | usb1 = ubh_get_usb_first(uspi); |
903 | usb2 = ubh_get_usb_second(uspi); | |
904 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 905 | |
252e211e MF |
906 | /* Sort out mod used on SunOS 4.1.3 for fs_state */ |
907 | uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); | |
908 | if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && | |
909 | (uspi->s_postblformat != UFS_42POSTBLFMT)) { | |
910 | flags &= ~UFS_ST_MASK; | |
911 | flags |= UFS_ST_SUN; | |
912 | } | |
913 | ||
1da177e4 LT |
914 | /* |
915 | * Check ufs magic number | |
916 | */ | |
917 | sbi->s_bytesex = BYTESEX_LE; | |
918 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { | |
919 | case UFS_MAGIC: | |
d27d7a9a | 920 | case UFS_MAGIC_BW: |
1da177e4 LT |
921 | case UFS2_MAGIC: |
922 | case UFS_MAGIC_LFN: | |
923 | case UFS_MAGIC_FEA: | |
924 | case UFS_MAGIC_4GB: | |
925 | goto magic_found; | |
926 | } | |
927 | sbi->s_bytesex = BYTESEX_BE; | |
928 | switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { | |
929 | case UFS_MAGIC: | |
d27d7a9a | 930 | case UFS_MAGIC_BW: |
1da177e4 LT |
931 | case UFS2_MAGIC: |
932 | case UFS_MAGIC_LFN: | |
933 | case UFS_MAGIC_FEA: | |
934 | case UFS_MAGIC_4GB: | |
935 | goto magic_found; | |
936 | } | |
937 | ||
938 | if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) | |
939 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) | |
940 | || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) | |
941 | && uspi->s_sbbase < 256) { | |
942 | ubh_brelse_uspi(uspi); | |
943 | ubh = NULL; | |
944 | uspi->s_sbbase += 8; | |
945 | goto again; | |
946 | } | |
947 | if (!silent) | |
948 | printk("ufs_read_super: bad magic number\n"); | |
949 | goto failed; | |
950 | ||
951 | magic_found: | |
952 | /* | |
953 | * Check block and fragment sizes | |
954 | */ | |
955 | uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); | |
956 | uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); | |
957 | uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); | |
958 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); | |
959 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); | |
960 | ||
9e8c4273 | 961 | if (!is_power_of_2(uspi->s_fsize)) { |
1da177e4 LT |
962 | printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", |
963 | uspi->s_fsize); | |
964 | goto failed; | |
965 | } | |
966 | if (uspi->s_fsize < 512) { | |
967 | printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", | |
968 | uspi->s_fsize); | |
969 | goto failed; | |
970 | } | |
971 | if (uspi->s_fsize > 4096) { | |
972 | printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", | |
973 | uspi->s_fsize); | |
974 | goto failed; | |
975 | } | |
9e8c4273 | 976 | if (!is_power_of_2(uspi->s_bsize)) { |
1da177e4 LT |
977 | printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", |
978 | uspi->s_bsize); | |
979 | goto failed; | |
980 | } | |
981 | if (uspi->s_bsize < 4096) { | |
982 | printk(KERN_ERR "ufs_read_super: block size %u is too small\n", | |
983 | uspi->s_bsize); | |
984 | goto failed; | |
985 | } | |
986 | if (uspi->s_bsize / uspi->s_fsize > 8) { | |
987 | printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", | |
988 | uspi->s_bsize / uspi->s_fsize); | |
989 | goto failed; | |
990 | } | |
991 | if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { | |
992 | ubh_brelse_uspi(uspi); | |
993 | ubh = NULL; | |
994 | block_size = uspi->s_fsize; | |
995 | super_block_size = uspi->s_sbsize; | |
abf5d15f | 996 | UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); |
1da177e4 LT |
997 | goto again; |
998 | } | |
999 | ||
f664f1f9 | 1000 | sbi->s_flags = flags;/*after that line some functions use s_flags*/ |
3313e292 | 1001 | ufs_print_super_stuff(sb, usb1, usb2, usb3); |
1da177e4 LT |
1002 | |
1003 | /* | |
1004 | * Check, if file system was correctly unmounted. | |
1005 | * If not, make it read only. | |
1006 | */ | |
f664f1f9 AM |
1007 | if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || |
1008 | ((flags & UFS_ST_MASK) == UFS_ST_OLD) || | |
1009 | (((flags & UFS_ST_MASK) == UFS_ST_SUN || | |
1010 | (flags & UFS_ST_MASK) == UFS_ST_SUNOS || | |
1011 | (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && | |
1012 | (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { | |
1da177e4 LT |
1013 | switch(usb1->fs_clean) { |
1014 | case UFS_FSCLEAN: | |
abf5d15f | 1015 | UFSD("fs is clean\n"); |
1da177e4 LT |
1016 | break; |
1017 | case UFS_FSSTABLE: | |
abf5d15f | 1018 | UFSD("fs is stable\n"); |
b3a0fd4d AV |
1019 | break; |
1020 | case UFS_FSLOG: | |
1021 | UFSD("fs is logging fs\n"); | |
1da177e4 LT |
1022 | break; |
1023 | case UFS_FSOSF1: | |
abf5d15f | 1024 | UFSD("fs is DEC OSF/1\n"); |
1da177e4 LT |
1025 | break; |
1026 | case UFS_FSACTIVE: | |
1027 | printk("ufs_read_super: fs is active\n"); | |
1028 | sb->s_flags |= MS_RDONLY; | |
1029 | break; | |
1030 | case UFS_FSBAD: | |
1031 | printk("ufs_read_super: fs is bad\n"); | |
1032 | sb->s_flags |= MS_RDONLY; | |
1033 | break; | |
1034 | default: | |
1035 | printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); | |
1036 | sb->s_flags |= MS_RDONLY; | |
1037 | break; | |
1038 | } | |
ee3ffd6c | 1039 | } else { |
1da177e4 LT |
1040 | printk("ufs_read_super: fs needs fsck\n"); |
1041 | sb->s_flags |= MS_RDONLY; | |
1042 | } | |
1043 | ||
1044 | /* | |
1045 | * Read ufs_super_block into internal data structures | |
1046 | */ | |
1047 | sb->s_op = &ufs_super_ops; | |
f3e2a520 | 1048 | sb->s_export_op = &ufs_export_ops; |
123e9caf | 1049 | |
1da177e4 LT |
1050 | sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); |
1051 | ||
1052 | uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); | |
1053 | uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); | |
1054 | uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); | |
1055 | uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); | |
1056 | uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); | |
1057 | uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); | |
1058 | ||
1059 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { | |
647b7e87 ED |
1060 | uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); |
1061 | uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); | |
1062 | } else { | |
1da177e4 LT |
1063 | uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); |
1064 | uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); | |
1065 | } | |
1066 | ||
1067 | uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); | |
1068 | /* s_bsize already set */ | |
1069 | /* s_fsize already set */ | |
1070 | uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); | |
1071 | uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); | |
1072 | uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); | |
1073 | uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); | |
1074 | uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); | |
1075 | uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); | |
abf5d15f ED |
1076 | UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, |
1077 | uspi->s_fshift); | |
1da177e4 LT |
1078 | uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); |
1079 | uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); | |
1080 | /* s_sbsize already set */ | |
1081 | uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); | |
1082 | uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); | |
1083 | uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); | |
1084 | uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); | |
1085 | uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); | |
1086 | uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); | |
1087 | uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); | |
1088 | uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); | |
3313e292 ED |
1089 | |
1090 | if (uspi->fs_magic == UFS2_MAGIC) | |
1091 | uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); | |
1092 | else | |
1093 | uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); | |
1094 | ||
1da177e4 LT |
1095 | uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); |
1096 | uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); | |
1097 | uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); | |
1098 | uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); | |
1099 | uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); | |
1100 | uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); | |
1101 | uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); | |
647b7e87 ED |
1102 | uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); |
1103 | uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); | |
1da177e4 LT |
1104 | uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); |
1105 | uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); | |
1da177e4 LT |
1106 | uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); |
1107 | uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); | |
1108 | uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); | |
1109 | ||
1110 | /* | |
1111 | * Compute another frequently used values | |
1112 | */ | |
1113 | uspi->s_fpbmask = uspi->s_fpb - 1; | |
abf5d15f | 1114 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) |
1da177e4 | 1115 | uspi->s_apbshift = uspi->s_bshift - 3; |
abf5d15f | 1116 | else |
1da177e4 | 1117 | uspi->s_apbshift = uspi->s_bshift - 2; |
abf5d15f | 1118 | |
1da177e4 LT |
1119 | uspi->s_2apbshift = uspi->s_apbshift * 2; |
1120 | uspi->s_3apbshift = uspi->s_apbshift * 3; | |
1121 | uspi->s_apb = 1 << uspi->s_apbshift; | |
1122 | uspi->s_2apb = 1 << uspi->s_2apbshift; | |
1123 | uspi->s_3apb = 1 << uspi->s_3apbshift; | |
1124 | uspi->s_apbmask = uspi->s_apb - 1; | |
1125 | uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; | |
1126 | uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; | |
1127 | uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; | |
1128 | uspi->s_bpf = uspi->s_fsize << 3; | |
1129 | uspi->s_bpfshift = uspi->s_fshift + 3; | |
1130 | uspi->s_bpfmask = uspi->s_bpf - 1; | |
90b315af ED |
1131 | if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || |
1132 | (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) | |
1da177e4 | 1133 | uspi->s_maxsymlinklen = |
647b7e87 | 1134 | fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); |
1da177e4 | 1135 | |
9e6766cc DG |
1136 | if (uspi->fs_magic == UFS2_MAGIC) |
1137 | maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); | |
1138 | else | |
1139 | maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); | |
1140 | if (uspi->s_maxsymlinklen > maxsymlen) { | |
1141 | ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " | |
1142 | "fast symlink size (%u)\n", uspi->s_maxsymlinklen); | |
1143 | uspi->s_maxsymlinklen = maxsymlen; | |
1144 | } | |
1145 | ||
b55c460d DH |
1146 | inode = ufs_iget(sb, UFS_ROOTINO); |
1147 | if (IS_ERR(inode)) { | |
1148 | ret = PTR_ERR(inode); | |
1da177e4 | 1149 | goto failed; |
b55c460d | 1150 | } |
1da177e4 | 1151 | sb->s_root = d_alloc_root(inode); |
b55c460d DH |
1152 | if (!sb->s_root) { |
1153 | ret = -ENOMEM; | |
1da177e4 | 1154 | goto dalloc_failed; |
b55c460d | 1155 | } |
1da177e4 | 1156 | |
ee3ffd6c | 1157 | ufs_setup_cstotal(sb); |
1da177e4 LT |
1158 | /* |
1159 | * Read cylinder group structures | |
1160 | */ | |
1161 | if (!(sb->s_flags & MS_RDONLY)) | |
1162 | if (!ufs_read_cylinder_structures(sb)) | |
1163 | goto failed; | |
1164 | ||
abf5d15f | 1165 | UFSD("EXIT\n"); |
1da177e4 LT |
1166 | return 0; |
1167 | ||
1168 | dalloc_failed: | |
1169 | iput(inode); | |
1170 | failed: | |
f99d49ad JJ |
1171 | if (ubh) |
1172 | ubh_brelse_uspi (uspi); | |
1173 | kfree (uspi); | |
1174 | kfree(sbi); | |
1da177e4 | 1175 | sb->s_fs_info = NULL; |
abf5d15f | 1176 | UFSD("EXIT (FAILED)\n"); |
b55c460d | 1177 | return ret; |
1da177e4 LT |
1178 | |
1179 | failed_nomem: | |
abf5d15f | 1180 | UFSD("EXIT (NOMEM)\n"); |
1da177e4 LT |
1181 | return -ENOMEM; |
1182 | } | |
1183 | ||
8c800656 | 1184 | static int ufs_sync_fs(struct super_block *sb, int wait) |
647b7e87 | 1185 | { |
1da177e4 LT |
1186 | struct ufs_sb_private_info * uspi; |
1187 | struct ufs_super_block_first * usb1; | |
1188 | struct ufs_super_block_third * usb3; | |
1189 | unsigned flags; | |
1190 | ||
ebc1ac16 | 1191 | lock_super(sb); |
1da177e4 | 1192 | lock_kernel(); |
8c800656 | 1193 | |
abf5d15f | 1194 | UFSD("ENTER\n"); |
8c800656 | 1195 | |
1da177e4 LT |
1196 | flags = UFS_SB(sb)->s_flags; |
1197 | uspi = UFS_SB(sb)->s_uspi; | |
7b4ee73e E |
1198 | usb1 = ubh_get_usb_first(uspi); |
1199 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 1200 | |
8c800656 CH |
1201 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
1202 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN || | |
1203 | (flags & UFS_ST_MASK) == UFS_ST_SUNOS || | |
1204 | (flags & UFS_ST_MASK) == UFS_ST_SUNx86) | |
1205 | ufs_set_fs_state(sb, usb1, usb3, | |
1206 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); | |
1207 | ufs_put_cstotal(sb); | |
1da177e4 | 1208 | sb->s_dirt = 0; |
8c800656 | 1209 | |
abf5d15f | 1210 | UFSD("EXIT\n"); |
1da177e4 | 1211 | unlock_kernel(); |
ebc1ac16 | 1212 | unlock_super(sb); |
8c800656 CH |
1213 | |
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | static void ufs_write_super(struct super_block *sb) | |
1218 | { | |
1219 | if (!(sb->s_flags & MS_RDONLY)) | |
1220 | ufs_sync_fs(sb, 1); | |
1221 | else | |
1222 | sb->s_dirt = 0; | |
1da177e4 LT |
1223 | } |
1224 | ||
abf5d15f | 1225 | static void ufs_put_super(struct super_block *sb) |
1da177e4 LT |
1226 | { |
1227 | struct ufs_sb_info * sbi = UFS_SB(sb); | |
1228 | ||
abf5d15f | 1229 | UFSD("ENTER\n"); |
1da177e4 | 1230 | |
8c85e125 CH |
1231 | if (sb->s_dirt) |
1232 | ufs_write_super(sb); | |
1233 | ||
1da177e4 | 1234 | if (!(sb->s_flags & MS_RDONLY)) |
ee3ffd6c | 1235 | ufs_put_super_internal(sb); |
1da177e4 LT |
1236 | |
1237 | ubh_brelse_uspi (sbi->s_uspi); | |
1238 | kfree (sbi->s_uspi); | |
1239 | kfree (sbi); | |
1240 | sb->s_fs_info = NULL; | |
647b7e87 | 1241 | UFSD("EXIT\n"); |
1da177e4 LT |
1242 | return; |
1243 | } | |
1244 | ||
1245 | ||
1246 | static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) | |
1247 | { | |
1248 | struct ufs_sb_private_info * uspi; | |
1249 | struct ufs_super_block_first * usb1; | |
1250 | struct ufs_super_block_third * usb3; | |
1251 | unsigned new_mount_opt, ufstype; | |
1252 | unsigned flags; | |
337eb00a AIB |
1253 | |
1254 | lock_kernel(); | |
bbd6851a | 1255 | lock_super(sb); |
1da177e4 LT |
1256 | uspi = UFS_SB(sb)->s_uspi; |
1257 | flags = UFS_SB(sb)->s_flags; | |
7b4ee73e E |
1258 | usb1 = ubh_get_usb_first(uspi); |
1259 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 LT |
1260 | |
1261 | /* | |
1262 | * Allow the "check" option to be passed as a remount option. | |
1263 | * It is not possible to change ufstype option during remount | |
1264 | */ | |
1265 | ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; | |
1266 | new_mount_opt = 0; | |
1267 | ufs_set_opt (new_mount_opt, ONERROR_LOCK); | |
bbd6851a AV |
1268 | if (!ufs_parse_options (data, &new_mount_opt)) { |
1269 | unlock_super(sb); | |
337eb00a | 1270 | unlock_kernel(); |
1da177e4 | 1271 | return -EINVAL; |
bbd6851a | 1272 | } |
1da177e4 LT |
1273 | if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { |
1274 | new_mount_opt |= ufstype; | |
ee3ffd6c | 1275 | } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { |
1da177e4 | 1276 | printk("ufstype can't be changed during remount\n"); |
bbd6851a | 1277 | unlock_super(sb); |
337eb00a | 1278 | unlock_kernel(); |
1da177e4 LT |
1279 | return -EINVAL; |
1280 | } | |
1281 | ||
1282 | if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { | |
1283 | UFS_SB(sb)->s_mount_opt = new_mount_opt; | |
bbd6851a | 1284 | unlock_super(sb); |
337eb00a | 1285 | unlock_kernel(); |
1da177e4 LT |
1286 | return 0; |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | * fs was mouted as rw, remounting ro | |
1291 | */ | |
1292 | if (*mount_flags & MS_RDONLY) { | |
ee3ffd6c | 1293 | ufs_put_super_internal(sb); |
1da177e4 LT |
1294 | usb1->fs_time = cpu_to_fs32(sb, get_seconds()); |
1295 | if ((flags & UFS_ST_MASK) == UFS_ST_SUN | |
252e211e | 1296 | || (flags & UFS_ST_MASK) == UFS_ST_SUNOS |
1da177e4 LT |
1297 | || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
1298 | ufs_set_fs_state(sb, usb1, usb3, | |
1299 | UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); | |
9695ef16 | 1300 | ubh_mark_buffer_dirty (USPI_UBH(uspi)); |
1da177e4 LT |
1301 | sb->s_dirt = 0; |
1302 | sb->s_flags |= MS_RDONLY; | |
ee3ffd6c | 1303 | } else { |
1da177e4 LT |
1304 | /* |
1305 | * fs was mounted as ro, remounting rw | |
1306 | */ | |
1da177e4 LT |
1307 | #ifndef CONFIG_UFS_FS_WRITE |
1308 | printk("ufs was compiled with read-only support, " | |
1309 | "can't be mounted as read-write\n"); | |
bbd6851a | 1310 | unlock_super(sb); |
337eb00a | 1311 | unlock_kernel(); |
1da177e4 LT |
1312 | return -EINVAL; |
1313 | #else | |
1314 | if (ufstype != UFS_MOUNT_UFSTYPE_SUN && | |
252e211e | 1315 | ufstype != UFS_MOUNT_UFSTYPE_SUNOS && |
1da177e4 | 1316 | ufstype != UFS_MOUNT_UFSTYPE_44BSD && |
cbcae39f ED |
1317 | ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && |
1318 | ufstype != UFS_MOUNT_UFSTYPE_UFS2) { | |
1da177e4 | 1319 | printk("this ufstype is read-only supported\n"); |
bbd6851a | 1320 | unlock_super(sb); |
337eb00a | 1321 | unlock_kernel(); |
1da177e4 LT |
1322 | return -EINVAL; |
1323 | } | |
ee3ffd6c | 1324 | if (!ufs_read_cylinder_structures(sb)) { |
1da177e4 | 1325 | printk("failed during remounting\n"); |
bbd6851a | 1326 | unlock_super(sb); |
337eb00a | 1327 | unlock_kernel(); |
1da177e4 LT |
1328 | return -EPERM; |
1329 | } | |
1330 | sb->s_flags &= ~MS_RDONLY; | |
1331 | #endif | |
1332 | } | |
1333 | UFS_SB(sb)->s_mount_opt = new_mount_opt; | |
bbd6851a | 1334 | unlock_super(sb); |
337eb00a | 1335 | unlock_kernel(); |
1da177e4 LT |
1336 | return 0; |
1337 | } | |
1338 | ||
2a9807c0 ED |
1339 | static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs) |
1340 | { | |
1341 | struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb); | |
1342 | unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; | |
a447c093 | 1343 | const struct match_token *tp = tokens; |
2a9807c0 ED |
1344 | |
1345 | while (tp->token != Opt_onerror_panic && tp->token != mval) | |
1346 | ++tp; | |
1347 | BUG_ON(tp->token == Opt_onerror_panic); | |
1348 | seq_printf(seq, ",%s", tp->pattern); | |
1349 | ||
1350 | mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; | |
1351 | while (tp->token != Opt_err && tp->token != mval) | |
1352 | ++tp; | |
1353 | BUG_ON(tp->token == Opt_err); | |
1354 | seq_printf(seq, ",%s", tp->pattern); | |
1355 | ||
1356 | return 0; | |
1357 | } | |
1358 | ||
647b7e87 | 1359 | static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 | 1360 | { |
726c3342 | 1361 | struct super_block *sb = dentry->d_sb; |
647b7e87 ED |
1362 | struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; |
1363 | unsigned flags = UFS_SB(sb)->s_flags; | |
1364 | struct ufs_super_block_first *usb1; | |
1365 | struct ufs_super_block_second *usb2; | |
1366 | struct ufs_super_block_third *usb3; | |
41d577aa | 1367 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); |
1da177e4 LT |
1368 | |
1369 | lock_kernel(); | |
1370 | ||
647b7e87 ED |
1371 | usb1 = ubh_get_usb_first(uspi); |
1372 | usb2 = ubh_get_usb_second(uspi); | |
1373 | usb3 = ubh_get_usb_third(uspi); | |
1da177e4 | 1374 | |
1da177e4 LT |
1375 | if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { |
1376 | buf->f_type = UFS2_MAGIC; | |
647b7e87 | 1377 | buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); |
647b7e87 | 1378 | } else { |
1da177e4 LT |
1379 | buf->f_type = UFS_MAGIC; |
1380 | buf->f_blocks = uspi->s_dsize; | |
1da177e4 | 1381 | } |
ee3ffd6c ED |
1382 | buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + |
1383 | uspi->cs_total.cs_nffree; | |
1384 | buf->f_ffree = uspi->cs_total.cs_nifree; | |
1da177e4 LT |
1385 | buf->f_bsize = sb->s_blocksize; |
1386 | buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) | |
1387 | ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; | |
1388 | buf->f_files = uspi->s_ncg * uspi->s_ipg; | |
1389 | buf->f_namelen = UFS_MAXNAMLEN; | |
41d577aa CL |
1390 | buf->f_fsid.val[0] = (u32)id; |
1391 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1da177e4 LT |
1392 | |
1393 | unlock_kernel(); | |
1394 | ||
1395 | return 0; | |
1396 | } | |
1397 | ||
e18b890b | 1398 | static struct kmem_cache * ufs_inode_cachep; |
1da177e4 LT |
1399 | |
1400 | static struct inode *ufs_alloc_inode(struct super_block *sb) | |
1401 | { | |
1402 | struct ufs_inode_info *ei; | |
e94b1766 | 1403 | ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_KERNEL); |
1da177e4 LT |
1404 | if (!ei) |
1405 | return NULL; | |
1406 | ei->vfs_inode.i_version = 1; | |
1407 | return &ei->vfs_inode; | |
1408 | } | |
1409 | ||
1410 | static void ufs_destroy_inode(struct inode *inode) | |
1411 | { | |
1412 | kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); | |
1413 | } | |
1414 | ||
51cc5068 | 1415 | static void init_once(void *foo) |
1da177e4 LT |
1416 | { |
1417 | struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; | |
1418 | ||
a35afb83 | 1419 | inode_init_once(&ei->vfs_inode); |
1da177e4 | 1420 | } |
20c2df83 | 1421 | |
1da177e4 LT |
1422 | static int init_inodecache(void) |
1423 | { | |
1424 | ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", | |
1425 | sizeof(struct ufs_inode_info), | |
fffb60f9 PJ |
1426 | 0, (SLAB_RECLAIM_ACCOUNT| |
1427 | SLAB_MEM_SPREAD), | |
20c2df83 | 1428 | init_once); |
1da177e4 LT |
1429 | if (ufs_inode_cachep == NULL) |
1430 | return -ENOMEM; | |
1431 | return 0; | |
1432 | } | |
1433 | ||
1434 | static void destroy_inodecache(void) | |
1435 | { | |
1a1d92c1 | 1436 | kmem_cache_destroy(ufs_inode_cachep); |
1da177e4 LT |
1437 | } |
1438 | ||
ee9b6d61 | 1439 | static const struct super_operations ufs_super_ops = { |
1da177e4 LT |
1440 | .alloc_inode = ufs_alloc_inode, |
1441 | .destroy_inode = ufs_destroy_inode, | |
1da177e4 | 1442 | .write_inode = ufs_write_inode, |
58e8268c | 1443 | .evict_inode = ufs_evict_inode, |
1da177e4 LT |
1444 | .put_super = ufs_put_super, |
1445 | .write_super = ufs_write_super, | |
8c800656 | 1446 | .sync_fs = ufs_sync_fs, |
1da177e4 LT |
1447 | .statfs = ufs_statfs, |
1448 | .remount_fs = ufs_remount, | |
2a9807c0 | 1449 | .show_options = ufs_show_options, |
1da177e4 LT |
1450 | }; |
1451 | ||
454e2398 DH |
1452 | static int ufs_get_sb(struct file_system_type *fs_type, |
1453 | int flags, const char *dev_name, void *data, struct vfsmount *mnt) | |
1da177e4 | 1454 | { |
454e2398 | 1455 | return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); |
1da177e4 LT |
1456 | } |
1457 | ||
1458 | static struct file_system_type ufs_fs_type = { | |
1459 | .owner = THIS_MODULE, | |
1460 | .name = "ufs", | |
1461 | .get_sb = ufs_get_sb, | |
1462 | .kill_sb = kill_block_super, | |
1463 | .fs_flags = FS_REQUIRES_DEV, | |
1464 | }; | |
1465 | ||
1466 | static int __init init_ufs_fs(void) | |
1467 | { | |
1468 | int err = init_inodecache(); | |
1469 | if (err) | |
1470 | goto out1; | |
1471 | err = register_filesystem(&ufs_fs_type); | |
1472 | if (err) | |
1473 | goto out; | |
1474 | return 0; | |
1475 | out: | |
1476 | destroy_inodecache(); | |
1477 | out1: | |
1478 | return err; | |
1479 | } | |
1480 | ||
1481 | static void __exit exit_ufs_fs(void) | |
1482 | { | |
1483 | unregister_filesystem(&ufs_fs_type); | |
1484 | destroy_inodecache(); | |
1485 | } | |
1486 | ||
1487 | module_init(init_ufs_fs) | |
1488 | module_exit(exit_ufs_fs) | |
1489 | MODULE_LICENSE("GPL"); |