11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/ufs/super.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1998 51da177e4SLinus Torvalds * Daniel Pirkl <daniel.pirkl@email.cz> 61da177e4SLinus Torvalds * Charles University, Faculty of Mathematics and Physics 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds /* Derived from 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * linux/fs/ext2/super.c 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994, 1995 141da177e4SLinus Torvalds * Remy Card (card@masi.ibp.fr) 151da177e4SLinus Torvalds * Laboratoire MASI - Institut Blaise Pascal 161da177e4SLinus Torvalds * Universite Pierre et Marie Curie (Paris VI) 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * from 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * linux/fs/minix/inode.c 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds * Big-endian to little-endian byte-swapping/bitmaps by 251da177e4SLinus Torvalds * David S. Miller (davem@caip.rutgers.edu), 1995 261da177e4SLinus Torvalds */ 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds /* 291da177e4SLinus Torvalds * Inspired by 301da177e4SLinus Torvalds * 311da177e4SLinus Torvalds * linux/fs/ufs/super.c 321da177e4SLinus Torvalds * 331da177e4SLinus Torvalds * Copyright (C) 1996 341da177e4SLinus Torvalds * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) 351da177e4SLinus Torvalds * Laboratory for Computer Science Research Computing Facility 361da177e4SLinus Torvalds * Rutgers, The State University of New Jersey 371da177e4SLinus Torvalds * 381da177e4SLinus Torvalds * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 391da177e4SLinus Torvalds * 401da177e4SLinus Torvalds * Kernel module support added on 96/04/26 by 411da177e4SLinus Torvalds * Stefan Reinauer <stepan@home.culture.mipt.ru> 421da177e4SLinus Torvalds * 431da177e4SLinus Torvalds * Module usage counts added on 96/04/29 by 44f762dd68SGertjan van Wingerde * Gertjan van Wingerde <gwingerde@gmail.com> 451da177e4SLinus Torvalds * 461da177e4SLinus Torvalds * Clean swab support on 19970406 by 471da177e4SLinus Torvalds * Francois-Rene Rideau <fare@tunes.org> 481da177e4SLinus Torvalds * 491da177e4SLinus Torvalds * 4.4BSD (FreeBSD) support added on February 1st 1998 by 501da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk> partially based 511da177e4SLinus Torvalds * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. 521da177e4SLinus Torvalds * 531da177e4SLinus Torvalds * NeXTstep support added on February 5th 1998 by 541da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk>. 551da177e4SLinus Torvalds * 561da177e4SLinus Torvalds * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 571da177e4SLinus Torvalds * 581da177e4SLinus Torvalds * HP/UX hfs filesystem support added by 591da177e4SLinus Torvalds * Martin K. Petersen <mkp@mkp.net>, August 1999 601da177e4SLinus Torvalds * 611da177e4SLinus Torvalds * UFS2 (of FreeBSD 5.x) support added by 621da177e4SLinus Torvalds * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 631da177e4SLinus Torvalds * 64cbcae39fSEvgeniy Dushistov * UFS2 write support added by 65cbcae39fSEvgeniy Dushistov * Evgeniy Dushistov <dushistov@mail.ru>, 2007 661da177e4SLinus Torvalds */ 671da177e4SLinus Torvalds 68f3e2a520SAlexey Dobriyan #include <linux/exportfs.h> 691da177e4SLinus Torvalds #include <linux/module.h> 701da177e4SLinus Torvalds #include <linux/bitops.h> 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds #include <stdarg.h> 731da177e4SLinus Torvalds 747c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds #include <linux/errno.h> 771da177e4SLinus Torvalds #include <linux/fs.h> 781da177e4SLinus Torvalds #include <linux/slab.h> 791da177e4SLinus Torvalds #include <linux/time.h> 801da177e4SLinus Torvalds #include <linux/stat.h> 811da177e4SLinus Torvalds #include <linux/string.h> 821da177e4SLinus Torvalds #include <linux/blkdev.h> 8366114cadSTejun Heo #include <linux/backing-dev.h> 841da177e4SLinus Torvalds #include <linux/init.h> 851da177e4SLinus Torvalds #include <linux/parser.h> 861da177e4SLinus Torvalds #include <linux/buffer_head.h> 871da177e4SLinus Torvalds #include <linux/vfs.h> 889e8c4273Svignesh babu #include <linux/log2.h> 892a9807c0SEvgeniy Dushistov #include <linux/mount.h> 902a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 911da177e4SLinus Torvalds 92e5420598SMike Frysinger #include "ufs_fs.h" 93bcd6d4ecSChristoph Hellwig #include "ufs.h" 941da177e4SLinus Torvalds #include "swab.h" 951da177e4SLinus Torvalds #include "util.h" 961da177e4SLinus Torvalds 97f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 98f3e2a520SAlexey Dobriyan { 99f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 100f3e2a520SAlexey Dobriyan struct inode *inode; 101f3e2a520SAlexey Dobriyan 102f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 103f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 104f3e2a520SAlexey Dobriyan 105f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 106f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 107f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 108f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 109f3e2a520SAlexey Dobriyan iput(inode); 110f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 111f3e2a520SAlexey Dobriyan } 112f3e2a520SAlexey Dobriyan return inode; 113f3e2a520SAlexey Dobriyan } 114f3e2a520SAlexey Dobriyan 115f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 116f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 117f3e2a520SAlexey Dobriyan { 118f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 119f3e2a520SAlexey Dobriyan } 120f3e2a520SAlexey Dobriyan 121f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 122f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 123f3e2a520SAlexey Dobriyan { 124f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 125f3e2a520SAlexey Dobriyan } 126f3e2a520SAlexey Dobriyan 127f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 128f3e2a520SAlexey Dobriyan { 12926fe5750SLinus Torvalds struct qstr dot_dot = QSTR_INIT("..", 2); 130f3e2a520SAlexey Dobriyan ino_t ino; 131f3e2a520SAlexey Dobriyan 1322b0143b5SDavid Howells ino = ufs_inode_by_name(d_inode(child), &dot_dot); 133f3e2a520SAlexey Dobriyan if (!ino) 134f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 135fc64005cSAl Viro return d_obtain_alias(ufs_iget(child->d_sb, ino)); 136f3e2a520SAlexey Dobriyan } 137f3e2a520SAlexey Dobriyan 138f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 139f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 140f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 141f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 142f3e2a520SAlexey Dobriyan }; 143f3e2a520SAlexey Dobriyan 144abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1451da177e4SLinus Torvalds /* 1461da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1471da177e4SLinus Torvalds */ 1483313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1491da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1501da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1511da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1521da177e4SLinus Torvalds { 1533313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1543313e292SEvgeniy Dushistov 155a9814c5dSFabian Frederick pr_debug("ufs_print_super_stuff\n"); 156a9814c5dSFabian Frederick pr_debug(" magic: 0x%x\n", magic); 1573313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 158a9814c5dSFabian Frederick pr_debug(" fs_size: %llu\n", (unsigned long long) 159647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 160a9814c5dSFabian Frederick pr_debug(" fs_dsize: %llu\n", (unsigned long long) 161647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 162a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", 163647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 164a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", 165647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 166a9814c5dSFabian Frederick pr_debug(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 167a9814c5dSFabian Frederick pr_debug(" fs_sblockloc: %llu\n", (unsigned long long) 168647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 169a9814c5dSFabian Frederick pr_debug(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 170647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 171a9814c5dSFabian Frederick pr_debug(" cs_nbfree(No of free blocks): %llu\n", 172647b7e87SEvgeniy Dushistov (unsigned long long) 173647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 174a9814c5dSFabian Frederick pr_info(" cs_nifree(Num of free inodes): %llu\n", 1753313e292SEvgeniy Dushistov (unsigned long long) 1763313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 177a9814c5dSFabian Frederick pr_info(" cs_nffree(Num of free frags): %llu\n", 1783313e292SEvgeniy Dushistov (unsigned long long) 1793313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 180a9814c5dSFabian Frederick pr_info(" fs_maxsymlinklen: %u\n", 18190b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 182647b7e87SEvgeniy Dushistov } else { 183a9814c5dSFabian Frederick pr_debug(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 184a9814c5dSFabian Frederick pr_debug(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 185a9814c5dSFabian Frederick pr_debug(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 186a9814c5dSFabian Frederick pr_debug(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 187a9814c5dSFabian Frederick pr_debug(" cgoffset: %u\n", 188647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 189a9814c5dSFabian Frederick pr_debug(" ~cgmask: 0x%x\n", 190647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 191a9814c5dSFabian Frederick pr_debug(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 192a9814c5dSFabian Frederick pr_debug(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 193a9814c5dSFabian Frederick pr_debug(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 194a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 195a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 196a9814c5dSFabian Frederick pr_debug(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 197a9814c5dSFabian Frederick pr_debug(" fragshift: %u\n", 198647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 199a9814c5dSFabian Frederick pr_debug(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 200a9814c5dSFabian Frederick pr_debug(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 201a9814c5dSFabian Frederick pr_debug(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 202a9814c5dSFabian Frederick pr_debug(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 203a9814c5dSFabian Frederick pr_debug(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 204a9814c5dSFabian Frederick pr_debug(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 205a9814c5dSFabian Frederick pr_debug(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 206a9814c5dSFabian Frederick pr_debug(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 207a9814c5dSFabian Frederick pr_debug(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 208a9814c5dSFabian Frederick pr_debug(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 209a9814c5dSFabian Frederick pr_debug(" fstodb: %u\n", 210647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 211a9814c5dSFabian Frederick pr_debug(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 212a9814c5dSFabian Frederick pr_debug(" ndir %u\n", 213647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 214a9814c5dSFabian Frederick pr_debug(" nifree %u\n", 215647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 216a9814c5dSFabian Frederick pr_debug(" nbfree %u\n", 217647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 218a9814c5dSFabian Frederick pr_debug(" nffree %u\n", 219647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2201da177e4SLinus Torvalds } 221a9814c5dSFabian Frederick pr_debug("\n"); 2221da177e4SLinus Torvalds } 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds /* 2251da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2261da177e4SLinus Torvalds */ 227647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 228647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2291da177e4SLinus Torvalds { 230a9814c5dSFabian Frederick pr_debug("\nufs_print_cylinder_stuff\n"); 231a9814c5dSFabian Frederick pr_debug("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 232a9814c5dSFabian Frederick pr_debug(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 233a9814c5dSFabian Frederick pr_debug(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 234a9814c5dSFabian Frederick pr_debug(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 235a9814c5dSFabian Frederick pr_debug(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 236a9814c5dSFabian Frederick pr_debug(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 237a9814c5dSFabian Frederick pr_debug(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 238a9814c5dSFabian Frederick pr_debug(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 239a9814c5dSFabian Frederick pr_debug(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 240a9814c5dSFabian Frederick pr_debug(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 241a9814c5dSFabian Frederick pr_debug(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 242a9814c5dSFabian Frederick pr_debug(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 243a9814c5dSFabian Frederick pr_debug(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 244a9814c5dSFabian Frederick pr_debug(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 245a9814c5dSFabian Frederick pr_debug(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2461da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2471da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2481da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2491da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 250a9814c5dSFabian Frederick pr_debug(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 251a9814c5dSFabian Frederick pr_debug(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 252a9814c5dSFabian Frederick pr_debug(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 253a9814c5dSFabian Frederick pr_debug(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 254a9814c5dSFabian Frederick pr_debug(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 255a9814c5dSFabian Frederick pr_debug(" clustersumoff %u\n", 256647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 257a9814c5dSFabian Frederick pr_debug(" clusteroff %u\n", 258647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 259a9814c5dSFabian Frederick pr_debug(" nclusterblks %u\n", 260647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 261a9814c5dSFabian Frederick pr_debug("\n"); 2621da177e4SLinus Torvalds } 263647b7e87SEvgeniy Dushistov #else 2643313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 265647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 266abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2671da177e4SLinus Torvalds 268ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2691da177e4SLinus Torvalds 2701da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2711da177e4SLinus Torvalds const char * fmt, ...) 2721da177e4SLinus Torvalds { 2731da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2741da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2757e1e4167SFabian Frederick struct va_format vaf; 2761da177e4SLinus Torvalds va_list args; 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2797b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2821da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2839695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2849e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 2851da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2861da177e4SLinus Torvalds } 2871da177e4SLinus Torvalds va_start(args, fmt); 2887e1e4167SFabian Frederick vaf.fmt = fmt; 2897e1e4167SFabian Frederick vaf.va = &args; 2901da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2911da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2927e1e4167SFabian Frederick panic("panic (device %s): %s: %pV\n", 2937e1e4167SFabian Frederick sb->s_id, function, &vaf); 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 2961da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 2971da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 2987e1e4167SFabian Frederick pr_crit("error (device %s): %s: %pV\n", 2997e1e4167SFabian Frederick sb->s_id, function, &vaf); 3001da177e4SLinus Torvalds } 3017e1e4167SFabian Frederick va_end(args); 3021da177e4SLinus Torvalds } 3031da177e4SLinus Torvalds 3041da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3051da177e4SLinus Torvalds const char * fmt, ...) 3061da177e4SLinus Torvalds { 3071da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3081da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3097e1e4167SFabian Frederick struct va_format vaf; 3101da177e4SLinus Torvalds va_list args; 3111da177e4SLinus Torvalds 3121da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3137b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3141da177e4SLinus Torvalds 3151da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3161da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3179695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3189e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3191da177e4SLinus Torvalds } 3201da177e4SLinus Torvalds va_start(args, fmt); 3217e1e4167SFabian Frederick vaf.fmt = fmt; 3227e1e4167SFabian Frederick vaf.va = &args; 3231da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3247e1e4167SFabian Frederick pr_crit("panic (device %s): %s: %pV\n", 3257e1e4167SFabian Frederick sb->s_id, function, &vaf); 3267e1e4167SFabian Frederick va_end(args); 3271da177e4SLinus Torvalds } 3281da177e4SLinus Torvalds 3291da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3301da177e4SLinus Torvalds const char * fmt, ...) 3311da177e4SLinus Torvalds { 3327e1e4167SFabian Frederick struct va_format vaf; 3331da177e4SLinus Torvalds va_list args; 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds va_start(args, fmt); 3367e1e4167SFabian Frederick vaf.fmt = fmt; 3377e1e4167SFabian Frederick vaf.va = &args; 3387e1e4167SFabian Frederick pr_warn("(device %s): %s: %pV\n", 3397e1e4167SFabian Frederick sb->s_id, function, &vaf); 3401da177e4SLinus Torvalds va_end(args); 3411da177e4SLinus Torvalds } 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds enum { 3442a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3452a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3462a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3472a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3482a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3492a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3502a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3512a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3522a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3532a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3542a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3552a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3562a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3572a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3582a9807c0SEvgeniy Dushistov Opt_err 3591da177e4SLinus Torvalds }; 3601da177e4SLinus Torvalds 361a447c093SSteven Whitehouse static const match_table_t tokens = { 3621da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3631da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3641da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 365252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3661da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3671da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3681da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3691da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3701da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3711da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3721da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3732a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3741da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3751da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3761da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3771da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3781da177e4SLinus Torvalds {Opt_err, NULL} 3791da177e4SLinus Torvalds }; 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3821da177e4SLinus Torvalds { 3831da177e4SLinus Torvalds char * p; 3841da177e4SLinus Torvalds 385abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds if (!options) 3881da177e4SLinus Torvalds return 1; 3891da177e4SLinus Torvalds 3901da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3911da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3921da177e4SLinus Torvalds int token; 3931da177e4SLinus Torvalds if (!*p) 3941da177e4SLinus Torvalds continue; 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds token = match_token(p, tokens, args); 3971da177e4SLinus Torvalds switch (token) { 3981da177e4SLinus Torvalds case Opt_type_old: 3991da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4001da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4011da177e4SLinus Torvalds break; 4021da177e4SLinus Torvalds case Opt_type_sunx86: 4031da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4041da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4051da177e4SLinus Torvalds break; 4061da177e4SLinus Torvalds case Opt_type_sun: 4071da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4081da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4091da177e4SLinus Torvalds break; 410252e211eSMark Fortescue case Opt_type_sunos: 411252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 412252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 413252e211eSMark Fortescue break; 4141da177e4SLinus Torvalds case Opt_type_44bsd: 4151da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4161da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4171da177e4SLinus Torvalds break; 4181da177e4SLinus Torvalds case Opt_type_ufs2: 4191da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4201da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4211da177e4SLinus Torvalds break; 4221da177e4SLinus Torvalds case Opt_type_hp: 4231da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4241da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4251da177e4SLinus Torvalds break; 4261da177e4SLinus Torvalds case Opt_type_nextstepcd: 4271da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4281da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4291da177e4SLinus Torvalds break; 4301da177e4SLinus Torvalds case Opt_type_nextstep: 4311da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4321da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4331da177e4SLinus Torvalds break; 4341da177e4SLinus Torvalds case Opt_type_openstep: 4351da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4361da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4371da177e4SLinus Torvalds break; 4381da177e4SLinus Torvalds case Opt_onerror_panic: 4391da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4401da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4411da177e4SLinus Torvalds break; 4421da177e4SLinus Torvalds case Opt_onerror_lock: 4431da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4441da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4451da177e4SLinus Torvalds break; 4461da177e4SLinus Torvalds case Opt_onerror_umount: 4471da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4481da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4491da177e4SLinus Torvalds break; 4501da177e4SLinus Torvalds case Opt_onerror_repair: 451de771bdaSFabian Frederick pr_err("Unable to do repair on error, will lock lock instead\n"); 4521da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4531da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4541da177e4SLinus Torvalds break; 4551da177e4SLinus Torvalds default: 456de771bdaSFabian Frederick pr_err("Invalid option: \"%s\" or missing value\n", p); 4571da177e4SLinus Torvalds return 0; 4581da177e4SLinus Torvalds } 4591da177e4SLinus Torvalds } 4601da177e4SLinus Torvalds return 1; 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds /* 46425985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 46525985edcSLucas De Marchi * places, and use different data structure for it. 46625985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 467ee3ffd6cSEvgeniy Dushistov */ 468ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 469ee3ffd6cSEvgeniy Dushistov { 470ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 471ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 472ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 473ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 474ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 475ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 476ee3ffd6cSEvgeniy Dushistov 477ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 478ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 479ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 480ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 481ee3ffd6cSEvgeniy Dushistov 482ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 48396ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) || 484ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 485ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 486ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 487ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 488ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 489ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 490ee3ffd6cSEvgeniy Dushistov } else { 491ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 492ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 493ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 494ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 495ee3ffd6cSEvgeniy Dushistov } 496ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 497ee3ffd6cSEvgeniy Dushistov } 498ee3ffd6cSEvgeniy Dushistov 499ee3ffd6cSEvgeniy Dushistov /* 5001da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5011da177e4SLinus Torvalds */ 502e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 503e295cfcbSEvgeniy Dushistov { 5041da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 505647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5061da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5071da177e4SLinus Torvalds unsigned char * base, * space; 5081da177e4SLinus Torvalds unsigned size, blks, i; 5091da177e4SLinus Torvalds 510abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvalds /* 5131da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5141da177e4SLinus Torvalds * on the device. 5151da177e4SLinus Torvalds */ 5161da177e4SLinus Torvalds size = uspi->s_cssize; 5171da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 518788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5191da177e4SLinus Torvalds if (!base) 5201da177e4SLinus Torvalds goto failed; 521e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5221da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5231da177e4SLinus Torvalds size = uspi->s_bsize; 5241da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5251da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5287b4ee73eSEvgeniy 5291da177e4SLinus Torvalds if (!ubh) 5301da177e4SLinus Torvalds goto failed; 5317b4ee73eSEvgeniy 5321da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5337b4ee73eSEvgeniy 5341da177e4SLinus Torvalds space += size; 5351da177e4SLinus Torvalds ubh_brelse (ubh); 5361da177e4SLinus Torvalds ubh = NULL; 5371da177e4SLinus Torvalds } 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds /* 5401da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5411da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5421da177e4SLinus Torvalds */ 543788257d6SArnd Bergmann if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_NOFS))) 5441da177e4SLinus Torvalds goto failed; 5451da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5461da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5471da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5481da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5491da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5501da177e4SLinus Torvalds } 5511da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 552abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5531da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5541da177e4SLinus Torvalds goto failed; 5551da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5561da177e4SLinus Torvalds goto failed; 557647b7e87SEvgeniy Dushistov 5581da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5591da177e4SLinus Torvalds } 5601da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 561788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5621da177e4SLinus Torvalds goto failed; 5631da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5641da177e4SLinus Torvalds } 5651da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 566abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5671da177e4SLinus Torvalds return 1; 5681da177e4SLinus Torvalds 5691da177e4SLinus Torvalds failed: 570f99d49adSJesper Juhl kfree (base); 5711da177e4SLinus Torvalds if (sbi->s_ucg) { 5721da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 573f99d49adSJesper Juhl if (sbi->s_ucg[i]) 574f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5751da177e4SLinus Torvalds kfree (sbi->s_ucg); 5761da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 577f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5781da177e4SLinus Torvalds } 579abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5801da177e4SLinus Torvalds return 0; 5811da177e4SLinus Torvalds } 5821da177e4SLinus Torvalds 5831da177e4SLinus Torvalds /* 584ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5851da177e4SLinus Torvalds */ 586ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 587ee3ffd6cSEvgeniy Dushistov { 588ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 589ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 590ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 591ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 592ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 593ee3ffd6cSEvgeniy Dushistov 594ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 595ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 596ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 597ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 598ee3ffd6cSEvgeniy Dushistov 59996ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_UFS2) { 600ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 601ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 602ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 603ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 604ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 605ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 606ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 607ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 608ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 60996ecff14SAl Viro goto out; 610ee3ffd6cSEvgeniy Dushistov } 61196ecff14SAl Viro 61296ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_44BSD && 61396ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) { 61496ecff14SAl Viro /* store stats in both old and new places */ 61596ecff14SAl Viro usb2->fs_un.fs_u2.cs_ndir = 61696ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 61796ecff14SAl Viro usb2->fs_un.fs_u2.cs_nbfree = 61896ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 61996ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nifree = 62096ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 62196ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nffree = 62296ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 62396ecff14SAl Viro } 62496ecff14SAl Viro usb1->fs_cstotal.cs_ndir = cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 62596ecff14SAl Viro usb1->fs_cstotal.cs_nbfree = cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 62696ecff14SAl Viro usb1->fs_cstotal.cs_nifree = cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 62796ecff14SAl Viro usb1->fs_cstotal.cs_nffree = cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 62896ecff14SAl Viro out: 629ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6303313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 631ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 632ee3ffd6cSEvgeniy Dushistov } 633ee3ffd6cSEvgeniy Dushistov 634ee3ffd6cSEvgeniy Dushistov /** 635ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 636ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 637ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 638ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 639ee3ffd6cSEvgeniy Dushistov */ 640ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 641e295cfcbSEvgeniy Dushistov { 6421da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 643ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6441da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6451da177e4SLinus Torvalds unsigned char * base, * space; 6461da177e4SLinus Torvalds unsigned blks, size, i; 6471da177e4SLinus Torvalds 648ee3ffd6cSEvgeniy Dushistov 649abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6506cfd0148SChristoph Hellwig 651ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6521da177e4SLinus Torvalds size = uspi->s_cssize; 6531da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 654e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6551da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6561da177e4SLinus Torvalds size = uspi->s_bsize; 6571da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6581da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6593313e292SEvgeniy Dushistov 6601da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6613313e292SEvgeniy Dushistov 6621da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6631da177e4SLinus Torvalds space += size; 6641da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6651da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6661da177e4SLinus Torvalds ubh_brelse (ubh); 6671da177e4SLinus Torvalds } 6681da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6691da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6701da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6711da177e4SLinus Torvalds } 6721da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6731da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6741da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6751da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6761da177e4SLinus Torvalds kfree (sbi->s_ucg); 6771da177e4SLinus Torvalds kfree (base); 6786cfd0148SChristoph Hellwig 679abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6801da177e4SLinus Torvalds } 6811da177e4SLinus Torvalds 6827bd54ef7SArtem Bityutskiy static int ufs_sync_fs(struct super_block *sb, int wait) 6837bd54ef7SArtem Bityutskiy { 6847bd54ef7SArtem Bityutskiy struct ufs_sb_private_info * uspi; 6857bd54ef7SArtem Bityutskiy struct ufs_super_block_first * usb1; 6867bd54ef7SArtem Bityutskiy struct ufs_super_block_third * usb3; 6877bd54ef7SArtem Bityutskiy unsigned flags; 6887bd54ef7SArtem Bityutskiy 689cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 6907bd54ef7SArtem Bityutskiy 6917bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 6927bd54ef7SArtem Bityutskiy 6937bd54ef7SArtem Bityutskiy flags = UFS_SB(sb)->s_flags; 6947bd54ef7SArtem Bityutskiy uspi = UFS_SB(sb)->s_uspi; 6957bd54ef7SArtem Bityutskiy usb1 = ubh_get_usb_first(uspi); 6967bd54ef7SArtem Bityutskiy usb3 = ubh_get_usb_third(uspi); 6977bd54ef7SArtem Bityutskiy 6987bd54ef7SArtem Bityutskiy usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 6997bd54ef7SArtem Bityutskiy if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 7007bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 7017bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 7027bd54ef7SArtem Bityutskiy ufs_set_fs_state(sb, usb1, usb3, 7037bd54ef7SArtem Bityutskiy UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 7047bd54ef7SArtem Bityutskiy ufs_put_cstotal(sb); 7057bd54ef7SArtem Bityutskiy 7067bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 707cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 7087bd54ef7SArtem Bityutskiy 7097bd54ef7SArtem Bityutskiy return 0; 7107bd54ef7SArtem Bityutskiy } 7117bd54ef7SArtem Bityutskiy 7129e9ad5f4SArtem Bityutskiy static void delayed_sync_fs(struct work_struct *work) 7137bd54ef7SArtem Bityutskiy { 7149e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi; 7159e9ad5f4SArtem Bityutskiy 7169e9ad5f4SArtem Bityutskiy sbi = container_of(work, struct ufs_sb_info, sync_work.work); 7179e9ad5f4SArtem Bityutskiy 7189e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7199e9ad5f4SArtem Bityutskiy sbi->work_queued = 0; 7209e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7219e9ad5f4SArtem Bityutskiy 7229e9ad5f4SArtem Bityutskiy ufs_sync_fs(sbi->sb, 1); 7239e9ad5f4SArtem Bityutskiy } 7249e9ad5f4SArtem Bityutskiy 7259e9ad5f4SArtem Bityutskiy void ufs_mark_sb_dirty(struct super_block *sb) 7269e9ad5f4SArtem Bityutskiy { 7279e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi = UFS_SB(sb); 7289e9ad5f4SArtem Bityutskiy unsigned long delay; 7299e9ad5f4SArtem Bityutskiy 7309e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7319e9ad5f4SArtem Bityutskiy if (!sbi->work_queued) { 7329e9ad5f4SArtem Bityutskiy delay = msecs_to_jiffies(dirty_writeback_interval * 10); 7339e9ad5f4SArtem Bityutskiy queue_delayed_work(system_long_wq, &sbi->sync_work, delay); 7349e9ad5f4SArtem Bityutskiy sbi->work_queued = 1; 7359e9ad5f4SArtem Bityutskiy } 7369e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7377bd54ef7SArtem Bityutskiy } 7387bd54ef7SArtem Bityutskiy 7397bd54ef7SArtem Bityutskiy static void ufs_put_super(struct super_block *sb) 7407bd54ef7SArtem Bityutskiy { 7417bd54ef7SArtem Bityutskiy struct ufs_sb_info * sbi = UFS_SB(sb); 7427bd54ef7SArtem Bityutskiy 7437bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7447bd54ef7SArtem Bityutskiy 7457bd54ef7SArtem Bityutskiy if (!(sb->s_flags & MS_RDONLY)) 7467bd54ef7SArtem Bityutskiy ufs_put_super_internal(sb); 7479e9ad5f4SArtem Bityutskiy cancel_delayed_work_sync(&sbi->sync_work); 7487bd54ef7SArtem Bityutskiy 7497bd54ef7SArtem Bityutskiy ubh_brelse_uspi (sbi->s_uspi); 7507bd54ef7SArtem Bityutskiy kfree (sbi->s_uspi); 7517bd54ef7SArtem Bityutskiy kfree (sbi); 7527bd54ef7SArtem Bityutskiy sb->s_fs_info = NULL; 7537bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7547bd54ef7SArtem Bityutskiy return; 7557bd54ef7SArtem Bityutskiy } 7567bd54ef7SArtem Bityutskiy 7576b0d144fSAl Viro static u64 ufs_max_bytes(struct super_block *sb) 7586b0d144fSAl Viro { 7596b0d144fSAl Viro struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 7606b0d144fSAl Viro int bits = uspi->s_apbshift; 7616b0d144fSAl Viro u64 res; 7626b0d144fSAl Viro 7636b0d144fSAl Viro if (bits > 21) 7646b0d144fSAl Viro res = ~0ULL; 7656b0d144fSAl Viro else 7666b0d144fSAl Viro res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) + 7676b0d144fSAl Viro (1LL << (3*bits)); 7686b0d144fSAl Viro 7696b0d144fSAl Viro if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift)) 7706b0d144fSAl Viro return MAX_LFS_FILESIZE; 7716b0d144fSAl Viro return res << uspi->s_bshift; 7726b0d144fSAl Viro } 7736b0d144fSAl Viro 7741da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 7751da177e4SLinus Torvalds { 7761da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7771da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7781da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7791da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7801da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7811da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7821da177e4SLinus Torvalds struct inode *inode; 7831da177e4SLinus Torvalds unsigned block_size, super_block_size; 7841da177e4SLinus Torvalds unsigned flags; 7857b4ee73eSEvgeniy unsigned super_block_offset; 7869e6766ccSDuane Griffin unsigned maxsymlen; 787b55c460dSDavid Howells int ret = -EINVAL; 7881da177e4SLinus Torvalds 7891da177e4SLinus Torvalds uspi = NULL; 7901da177e4SLinus Torvalds ubh = NULL; 7911da177e4SLinus Torvalds flags = 0; 7921da177e4SLinus Torvalds 793abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7941da177e4SLinus Torvalds 7950244756eSFabian Frederick #ifndef CONFIG_UFS_FS_WRITE 7960244756eSFabian Frederick if (!(sb->s_flags & MS_RDONLY)) { 797a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 7980244756eSFabian Frederick return -EROFS; 7990244756eSFabian Frederick } 8000244756eSFabian Frederick #endif 8010244756eSFabian Frederick 802f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 8031da177e4SLinus Torvalds if (!sbi) 8041da177e4SLinus Torvalds goto failed_nomem; 8051da177e4SLinus Torvalds sb->s_fs_info = sbi; 8069e9ad5f4SArtem Bityutskiy sbi->sb = sb; 8071da177e4SLinus Torvalds 808abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 8091da177e4SLinus Torvalds 810e4f95517SFabian Frederick mutex_init(&sbi->s_lock); 8119e9ad5f4SArtem Bityutskiy spin_lock_init(&sbi->work_lock); 8129e9ad5f4SArtem Bityutskiy INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs); 8131da177e4SLinus Torvalds /* 8141da177e4SLinus Torvalds * Set default mount options 8151da177e4SLinus Torvalds * Parse mount options 8161da177e4SLinus Torvalds */ 8171da177e4SLinus Torvalds sbi->s_mount_opt = 0; 8181da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 8191da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 820a9814c5dSFabian Frederick pr_err("wrong mount options\n"); 8211da177e4SLinus Torvalds goto failed; 8221da177e4SLinus Torvalds } 8231da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 8241da177e4SLinus Torvalds if (!silent) 825a9814c5dSFabian Frederick pr_err("You didn't specify the type of your ufs filesystem\n\n" 8261da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 827c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 8281da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 8291da177e4SLinus Torvalds "default is ufstype=old\n"); 8301da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 8311da177e4SLinus Torvalds } 8321da177e4SLinus Torvalds 833252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 834252e211eSMark Fortescue sbi->s_uspi = uspi; 8351da177e4SLinus Torvalds if (!uspi) 8361da177e4SLinus Torvalds goto failed; 837f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 8387b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 8397b4ee73eSEvgeniy 8401da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 8411da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 8421da177e4SLinus Torvalds the rules */ 8431da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 8441da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 845abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 8461da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8471da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8481da177e4SLinus Torvalds uspi->s_fshift = 9; 8491da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8501da177e4SLinus Torvalds uspi->s_sbbase = 0; 8511da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8521da177e4SLinus Torvalds break; 8531da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 854abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 8557b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 8561da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8571da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8581da177e4SLinus Torvalds uspi->s_fshift = 9; 8591da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8601da177e4SLinus Torvalds uspi->s_sbbase = 0; 8611da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8621da177e4SLinus Torvalds break; 8631da177e4SLinus Torvalds 8641da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 865abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 8661da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8671da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8681da177e4SLinus Torvalds uspi->s_fshift = 10; 8691da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8701da177e4SLinus Torvalds uspi->s_sbbase = 0; 871252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8721da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 8731da177e4SLinus Torvalds break; 8741da177e4SLinus Torvalds 875252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 876d4beaabdSFabian Frederick UFSD("ufstype=sunos\n"); 877252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 878252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 879252e211eSMark Fortescue uspi->s_fshift = 10; 880252e211eSMark Fortescue uspi->s_sbsize = 2048; 881252e211eSMark Fortescue super_block_size = 2048; 882252e211eSMark Fortescue uspi->s_sbbase = 0; 883252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 884252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 885252e211eSMark Fortescue break; 886252e211eSMark Fortescue 8871da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 888abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 8891da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8901da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8911da177e4SLinus Torvalds uspi->s_fshift = 10; 8921da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8931da177e4SLinus Torvalds uspi->s_sbbase = 0; 894252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8951da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8961da177e4SLinus Torvalds break; 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 899abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 9001da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9011da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9021da177e4SLinus Torvalds uspi->s_fshift = 10; 9031da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9041da177e4SLinus Torvalds uspi->s_sbbase = 0; 9051da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9061da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9071da177e4SLinus Torvalds if (!silent) 908a9814c5dSFabian Frederick pr_info("ufstype=old is supported read-only\n"); 9091da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9101da177e4SLinus Torvalds } 9111da177e4SLinus Torvalds break; 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 914abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 9151da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9161da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9171da177e4SLinus Torvalds uspi->s_fshift = 10; 9181da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9191da177e4SLinus Torvalds uspi->s_sbbase = 0; 9200c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9211da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9221da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9231da177e4SLinus Torvalds if (!silent) 924a9814c5dSFabian Frederick pr_info("ufstype=nextstep is supported read-only\n"); 9251da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9261da177e4SLinus Torvalds } 9271da177e4SLinus Torvalds break; 9281da177e4SLinus Torvalds 9291da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 930abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 9311da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 9321da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 9331da177e4SLinus Torvalds uspi->s_fshift = 11; 9341da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9351da177e4SLinus Torvalds uspi->s_sbbase = 0; 9360c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9371da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9381da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9391da177e4SLinus Torvalds if (!silent) 940a9814c5dSFabian Frederick pr_info("ufstype=nextstep-cd is supported read-only\n"); 9411da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9421da177e4SLinus Torvalds } 9431da177e4SLinus Torvalds break; 9441da177e4SLinus Torvalds 9451da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 946abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 9471da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9481da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9491da177e4SLinus Torvalds uspi->s_fshift = 10; 9501da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9511da177e4SLinus Torvalds uspi->s_sbbase = 0; 952f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 9531da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 9541da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9551da177e4SLinus Torvalds if (!silent) 956a9814c5dSFabian Frederick pr_info("ufstype=openstep is supported read-only\n"); 9571da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9581da177e4SLinus Torvalds } 9591da177e4SLinus Torvalds break; 9601da177e4SLinus Torvalds 9611da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 962abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 9631da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9641da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9651da177e4SLinus Torvalds uspi->s_fshift = 10; 9661da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9671da177e4SLinus Torvalds uspi->s_sbbase = 0; 9681da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9691da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9701da177e4SLinus Torvalds if (!silent) 971a9814c5dSFabian Frederick pr_info("ufstype=hp is supported read-only\n"); 9721da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds break; 9751da177e4SLinus Torvalds default: 9761da177e4SLinus Torvalds if (!silent) 977a9814c5dSFabian Frederick pr_err("unknown ufstype\n"); 9781da177e4SLinus Torvalds goto failed; 9791da177e4SLinus Torvalds } 9801da177e4SLinus Torvalds 9811da177e4SLinus Torvalds again: 9821da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 983de771bdaSFabian Frederick pr_err("failed to set blocksize\n"); 9841da177e4SLinus Torvalds goto failed; 9851da177e4SLinus Torvalds } 9861da177e4SLinus Torvalds 9871da177e4SLinus Torvalds /* 9881da177e4SLinus Torvalds * read ufs super block from device 9891da177e4SLinus Torvalds */ 9907b4ee73eSEvgeniy 9917b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 9927b4ee73eSEvgeniy 9931da177e4SLinus Torvalds if (!ubh) 9941da177e4SLinus Torvalds goto failed; 9951da177e4SLinus Torvalds 9967b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9977b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 9987b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 9991da177e4SLinus Torvalds 1000252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 1001252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 1002252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 1003252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 1004252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 1005252e211eSMark Fortescue flags |= UFS_ST_SUN; 1006252e211eSMark Fortescue } 1007252e211eSMark Fortescue 100896ecff14SAl Viro if ((flags & UFS_ST_MASK) == UFS_ST_44BSD && 100996ecff14SAl Viro uspi->s_postblformat == UFS_42POSTBLFMT) { 101096ecff14SAl Viro if (!silent) 101196ecff14SAl Viro pr_err("this is not a 44bsd filesystem"); 101296ecff14SAl Viro goto failed; 101396ecff14SAl Viro } 101496ecff14SAl Viro 10151da177e4SLinus Torvalds /* 10161da177e4SLinus Torvalds * Check ufs magic number 10171da177e4SLinus Torvalds */ 10181da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 10191da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10201da177e4SLinus Torvalds case UFS_MAGIC: 1021d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10221da177e4SLinus Torvalds case UFS2_MAGIC: 10231da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10241da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10251da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10261da177e4SLinus Torvalds goto magic_found; 10271da177e4SLinus Torvalds } 10281da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 10291da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10301da177e4SLinus Torvalds case UFS_MAGIC: 1031d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10321da177e4SLinus Torvalds case UFS2_MAGIC: 10331da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10341da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10351da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10361da177e4SLinus Torvalds goto magic_found; 10371da177e4SLinus Torvalds } 10381da177e4SLinus Torvalds 10391da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 10401da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 10411da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 10421da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 10431da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10441da177e4SLinus Torvalds ubh = NULL; 10451da177e4SLinus Torvalds uspi->s_sbbase += 8; 10461da177e4SLinus Torvalds goto again; 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds if (!silent) 104907bc94fdSFabian Frederick pr_err("%s(): bad magic number\n", __func__); 10501da177e4SLinus Torvalds goto failed; 10511da177e4SLinus Torvalds 10521da177e4SLinus Torvalds magic_found: 10531da177e4SLinus Torvalds /* 10541da177e4SLinus Torvalds * Check block and fragment sizes 10551da177e4SLinus Torvalds */ 10561da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 10571da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 10581da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 10591da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10601da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 10611da177e4SLinus Torvalds 10629e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 106307bc94fdSFabian Frederick pr_err("%s(): fragment size %u is not a power of 2\n", 106407bc94fdSFabian Frederick __func__, uspi->s_fsize); 10651da177e4SLinus Torvalds goto failed; 10661da177e4SLinus Torvalds } 10671da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 106807bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too small\n", 106907bc94fdSFabian Frederick __func__, uspi->s_fsize); 10701da177e4SLinus Torvalds goto failed; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 107307bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too large\n", 107407bc94fdSFabian Frederick __func__, uspi->s_fsize); 10751da177e4SLinus Torvalds goto failed; 10761da177e4SLinus Torvalds } 10779e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 107807bc94fdSFabian Frederick pr_err("%s(): block size %u is not a power of 2\n", 107907bc94fdSFabian Frederick __func__, uspi->s_bsize); 10801da177e4SLinus Torvalds goto failed; 10811da177e4SLinus Torvalds } 10821da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 108307bc94fdSFabian Frederick pr_err("%s(): block size %u is too small\n", 108407bc94fdSFabian Frederick __func__, uspi->s_bsize); 10851da177e4SLinus Torvalds goto failed; 10861da177e4SLinus Torvalds } 10871da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 108807bc94fdSFabian Frederick pr_err("%s(): too many fragments per block (%u)\n", 108907bc94fdSFabian Frederick __func__, uspi->s_bsize / uspi->s_fsize); 10901da177e4SLinus Torvalds goto failed; 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 10931da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10941da177e4SLinus Torvalds ubh = NULL; 10951da177e4SLinus Torvalds block_size = uspi->s_fsize; 10961da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1097abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 10981da177e4SLinus Torvalds goto again; 10991da177e4SLinus Torvalds } 11001da177e4SLinus Torvalds 1101f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 11023313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 11031da177e4SLinus Torvalds 11041da177e4SLinus Torvalds /* 11051da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 11061da177e4SLinus Torvalds * If not, make it read only. 11071da177e4SLinus Torvalds */ 1108f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 11091da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1110f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1111f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1112f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1113f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 11141da177e4SLinus Torvalds switch(usb1->fs_clean) { 11151da177e4SLinus Torvalds case UFS_FSCLEAN: 1116abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 11171da177e4SLinus Torvalds break; 11181da177e4SLinus Torvalds case UFS_FSSTABLE: 1119abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 11201da177e4SLinus Torvalds break; 1121b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1122b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1123b3a0fd4dSAlex Viskovatoff break; 11241da177e4SLinus Torvalds case UFS_FSOSF1: 1125abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 11261da177e4SLinus Torvalds break; 11271da177e4SLinus Torvalds case UFS_FSACTIVE: 112807bc94fdSFabian Frederick pr_err("%s(): fs is active\n", __func__); 11291da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11301da177e4SLinus Torvalds break; 11311da177e4SLinus Torvalds case UFS_FSBAD: 113207bc94fdSFabian Frederick pr_err("%s(): fs is bad\n", __func__); 11331da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11341da177e4SLinus Torvalds break; 11351da177e4SLinus Torvalds default: 113607bc94fdSFabian Frederick pr_err("%s(): can't grok fs_clean 0x%x\n", 113707bc94fdSFabian Frederick __func__, usb1->fs_clean); 11381da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11391da177e4SLinus Torvalds break; 11401da177e4SLinus Torvalds } 1141ee3ffd6cSEvgeniy Dushistov } else { 114207bc94fdSFabian Frederick pr_err("%s(): fs needs fsck\n", __func__); 11431da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11441da177e4SLinus Torvalds } 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds /* 11471da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 11481da177e4SLinus Torvalds */ 11491da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1150f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1151123e9cafSChristoph Hellwig 11521da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 11531da177e4SLinus Torvalds 11541da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 11551da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 11561da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 11571da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 11581da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 11591da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1162c596961dSAl Viro uspi->s_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1163c596961dSAl Viro uspi->s_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1164647b7e87SEvgeniy Dushistov } else { 11651da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 11661da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 11671da177e4SLinus Torvalds } 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 11701da177e4SLinus Torvalds /* s_bsize already set */ 11711da177e4SLinus Torvalds /* s_fsize already set */ 11721da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 11731da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 11741da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 11751da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 11761da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 11771da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1178abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1179abf5d15fSEvgeniy Dushistov uspi->s_fshift); 11801da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 11811da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 11821da177e4SLinus Torvalds /* s_sbsize already set */ 11831da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 11841da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 11851da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 11861da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11871da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11881da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11891da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 11901da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 11913313e292SEvgeniy Dushistov 11923313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 11933313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 11943313e292SEvgeniy Dushistov else 11951da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 11963313e292SEvgeniy Dushistov 11971da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 11981da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 11991da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 12001da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 12011da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 12021da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 12031da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1204647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1205647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 12061da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 12071da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 12081da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 12091da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 12101da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 12111da177e4SLinus Torvalds 1212c596961dSAl Viro uspi->s_root_blocks = mul_u64_u32_div(uspi->s_dsize, 1213c596961dSAl Viro uspi->s_minfree, 100); 121477e9ce32SAl Viro if (uspi->s_minfree <= 5) { 121577e9ce32SAl Viro uspi->s_time_to_space = ~0ULL; 121677e9ce32SAl Viro uspi->s_space_to_time = 0; 121777e9ce32SAl Viro usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTSPACE); 121877e9ce32SAl Viro } else { 121977e9ce32SAl Viro uspi->s_time_to_space = (uspi->s_root_blocks / 2) + 1; 122077e9ce32SAl Viro uspi->s_space_to_time = mul_u64_u32_div(uspi->s_dsize, 122177e9ce32SAl Viro uspi->s_minfree - 2, 100) - 1; 122277e9ce32SAl Viro } 1223c596961dSAl Viro 12241da177e4SLinus Torvalds /* 12251da177e4SLinus Torvalds * Compute another frequently used values 12261da177e4SLinus Torvalds */ 12271da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1228abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 12291da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1230abf5d15fSEvgeniy Dushistov else 12311da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1232abf5d15fSEvgeniy Dushistov 12331da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 12341da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 12351da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 12361da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 12371da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 12381da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 12391da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 12401da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 12411da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 12421da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 12431da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 12441da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 124590b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 124690b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 12471da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1248647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 12491da177e4SLinus Torvalds 12509e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 12519e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 12529e6766ccSDuane Griffin else 12539e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 12549e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 12559e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 12569e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 12579e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 12589e6766ccSDuane Griffin } 12596b0d144fSAl Viro sb->s_maxbytes = ufs_max_bytes(sb); 12608de52778SAl Viro sb->s_max_links = UFS_LINK_MAX; 12619e6766ccSDuane Griffin 1262b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1263b55c460dSDavid Howells if (IS_ERR(inode)) { 1264b55c460dSDavid Howells ret = PTR_ERR(inode); 12651da177e4SLinus Torvalds goto failed; 1266b55c460dSDavid Howells } 126748fde701SAl Viro sb->s_root = d_make_root(inode); 1268b55c460dSDavid Howells if (!sb->s_root) { 1269b55c460dSDavid Howells ret = -ENOMEM; 127048fde701SAl Viro goto failed; 1271b55c460dSDavid Howells } 12721da177e4SLinus Torvalds 1273ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 12741da177e4SLinus Torvalds /* 12751da177e4SLinus Torvalds * Read cylinder group structures 12761da177e4SLinus Torvalds */ 12771da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 12781da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 12791da177e4SLinus Torvalds goto failed; 12801da177e4SLinus Torvalds 1281abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12821da177e4SLinus Torvalds return 0; 12831da177e4SLinus Torvalds 12841da177e4SLinus Torvalds failed: 1285f99d49adSJesper Juhl if (ubh) 1286f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1287f99d49adSJesper Juhl kfree (uspi); 1288f99d49adSJesper Juhl kfree(sbi); 12891da177e4SLinus Torvalds sb->s_fs_info = NULL; 1290abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1291b55c460dSDavid Howells return ret; 12921da177e4SLinus Torvalds 12931da177e4SLinus Torvalds failed_nomem: 1294abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 12951da177e4SLinus Torvalds return -ENOMEM; 12961da177e4SLinus Torvalds } 12971da177e4SLinus Torvalds 12981da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 12991da177e4SLinus Torvalds { 13001da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 13011da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 13021da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 13031da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 13041da177e4SLinus Torvalds unsigned flags; 13051da177e4SLinus Torvalds 130602b9984dSTheodore Ts'o sync_filesystem(sb); 1307cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 13081da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 13091da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 13107b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 13117b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 13121da177e4SLinus Torvalds 13131da177e4SLinus Torvalds /* 13141da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 13151da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 13161da177e4SLinus Torvalds */ 13171da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 13181da177e4SLinus Torvalds new_mount_opt = 0; 13191da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1320bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1321cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13221da177e4SLinus Torvalds return -EINVAL; 1323bbd6851aSAl Viro } 13241da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 13251da177e4SLinus Torvalds new_mount_opt |= ufstype; 1326ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 1327a9814c5dSFabian Frederick pr_err("ufstype can't be changed during remount\n"); 1328cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13291da177e4SLinus Torvalds return -EINVAL; 13301da177e4SLinus Torvalds } 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 13331da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1334cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13351da177e4SLinus Torvalds return 0; 13361da177e4SLinus Torvalds } 13371da177e4SLinus Torvalds 13381da177e4SLinus Torvalds /* 13391da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13401da177e4SLinus Torvalds */ 13411da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1342ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 13431da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 13441da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1345252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13461da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13471da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13481da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13499695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13501da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1351ee3ffd6cSEvgeniy Dushistov } else { 13521da177e4SLinus Torvalds /* 13531da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13541da177e4SLinus Torvalds */ 13551da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 1356a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 1357cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13581da177e4SLinus Torvalds return -EINVAL; 13591da177e4SLinus Torvalds #else 13601da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1361252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13621da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1363cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1364cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 1365a9814c5dSFabian Frederick pr_err("this ufstype is read-only supported\n"); 1366cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13671da177e4SLinus Torvalds return -EINVAL; 13681da177e4SLinus Torvalds } 13691da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 1370a9814c5dSFabian Frederick pr_err("failed during remounting\n"); 1371cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13721da177e4SLinus Torvalds return -EPERM; 13731da177e4SLinus Torvalds } 13741da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 13751da177e4SLinus Torvalds #endif 13761da177e4SLinus Torvalds } 13771da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1378cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13791da177e4SLinus Torvalds return 0; 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 138234c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13832a9807c0SEvgeniy Dushistov { 138434c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13852a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1386a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13872a9807c0SEvgeniy Dushistov 13882a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13892a9807c0SEvgeniy Dushistov ++tp; 13902a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13912a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13922a9807c0SEvgeniy Dushistov 13932a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13942a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13952a9807c0SEvgeniy Dushistov ++tp; 13962a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13972a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13982a9807c0SEvgeniy Dushistov 13992a9807c0SEvgeniy Dushistov return 0; 14002a9807c0SEvgeniy Dushistov } 14012a9807c0SEvgeniy Dushistov 1402726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 14031da177e4SLinus Torvalds { 1404726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1405647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1406647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 1407647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 140841d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 14091da177e4SLinus Torvalds 1410dff7cfd3SAl Viro mutex_lock(&UFS_SB(sb)->s_lock); 1411647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 14121da177e4SLinus Torvalds 1413c596961dSAl Viro if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 14141da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1415c596961dSAl Viro else 14161da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 1417c596961dSAl Viro 14181da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 1419c596961dSAl Viro buf->f_bfree = ufs_freefrags(uspi); 1420ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14211da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 1422c596961dSAl Viro buf->f_bavail = (buf->f_bfree > uspi->s_root_blocks) 1423c596961dSAl Viro ? (buf->f_bfree - uspi->s_root_blocks) : 0; 14241da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14251da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 142641d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 142741d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 14281da177e4SLinus Torvalds 1429dff7cfd3SAl Viro mutex_unlock(&UFS_SB(sb)->s_lock); 14301da177e4SLinus Torvalds 14311da177e4SLinus Torvalds return 0; 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds 1434e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14351da177e4SLinus Torvalds 14361da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14371da177e4SLinus Torvalds { 14381da177e4SLinus Torvalds struct ufs_inode_info *ei; 143961da3ae2SFabian Frederick 144061da3ae2SFabian Frederick ei = kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); 14411da177e4SLinus Torvalds if (!ei) 14421da177e4SLinus Torvalds return NULL; 144361da3ae2SFabian Frederick 14441da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 1445724bb09fSAl Viro seqlock_init(&ei->meta_lock); 1446724bb09fSAl Viro mutex_init(&ei->truncate_mutex); 14471da177e4SLinus Torvalds return &ei->vfs_inode; 14481da177e4SLinus Torvalds } 14491da177e4SLinus Torvalds 1450fa0d7e3dSNick Piggin static void ufs_i_callback(struct rcu_head *head) 1451fa0d7e3dSNick Piggin { 1452fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 1453fa0d7e3dSNick Piggin kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 1454fa0d7e3dSNick Piggin } 1455fa0d7e3dSNick Piggin 14561da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 14571da177e4SLinus Torvalds { 1458fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ufs_i_callback); 14591da177e4SLinus Torvalds } 14601da177e4SLinus Torvalds 146151cc5068SAlexey Dobriyan static void init_once(void *foo) 14621da177e4SLinus Torvalds { 14631da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14641da177e4SLinus Torvalds 14651da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14661da177e4SLinus Torvalds } 14671da177e4SLinus Torvalds 146876ee4735SFabian Frederick static int __init init_inodecache(void) 14691da177e4SLinus Torvalds { 14701da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 14711da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1472fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 14735d097056SVladimir Davydov SLAB_MEM_SPREAD|SLAB_ACCOUNT), 147420c2df83SPaul Mundt init_once); 14751da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14761da177e4SLinus Torvalds return -ENOMEM; 14771da177e4SLinus Torvalds return 0; 14781da177e4SLinus Torvalds } 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds static void destroy_inodecache(void) 14811da177e4SLinus Torvalds { 14828c0a8537SKirill A. Shutemov /* 14838c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 14848c0a8537SKirill A. Shutemov * destroy cache. 14858c0a8537SKirill A. Shutemov */ 14868c0a8537SKirill A. Shutemov rcu_barrier(); 14871a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14881da177e4SLinus Torvalds } 14891da177e4SLinus Torvalds 1490ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14911da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 14921da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 14931da177e4SLinus Torvalds .write_inode = ufs_write_inode, 149458e8268cSAl Viro .evict_inode = ufs_evict_inode, 14951da177e4SLinus Torvalds .put_super = ufs_put_super, 14968c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14971da177e4SLinus Torvalds .statfs = ufs_statfs, 14981da177e4SLinus Torvalds .remount_fs = ufs_remount, 14992a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 15001da177e4SLinus Torvalds }; 15011da177e4SLinus Torvalds 1502152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1503152a0836SAl Viro int flags, const char *dev_name, void *data) 15041da177e4SLinus Torvalds { 1505152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 15081da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 15091da177e4SLinus Torvalds .owner = THIS_MODULE, 15101da177e4SLinus Torvalds .name = "ufs", 1511152a0836SAl Viro .mount = ufs_mount, 15121da177e4SLinus Torvalds .kill_sb = kill_block_super, 15131da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15141da177e4SLinus Torvalds }; 15157f78e035SEric W. Biederman MODULE_ALIAS_FS("ufs"); 15161da177e4SLinus Torvalds 15171da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15181da177e4SLinus Torvalds { 15191da177e4SLinus Torvalds int err = init_inodecache(); 15201da177e4SLinus Torvalds if (err) 15211da177e4SLinus Torvalds goto out1; 15221da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15231da177e4SLinus Torvalds if (err) 15241da177e4SLinus Torvalds goto out; 15251da177e4SLinus Torvalds return 0; 15261da177e4SLinus Torvalds out: 15271da177e4SLinus Torvalds destroy_inodecache(); 15281da177e4SLinus Torvalds out1: 15291da177e4SLinus Torvalds return err; 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds 15321da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15331da177e4SLinus Torvalds { 15341da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15351da177e4SLinus Torvalds destroy_inodecache(); 15361da177e4SLinus Torvalds } 15371da177e4SLinus Torvalds 15381da177e4SLinus Torvalds module_init(init_ufs_fs) 15391da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15401da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1541