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 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds #include <linux/module.h> 701da177e4SLinus Torvalds #include <linux/bitops.h> 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds #include <stdarg.h> 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds #include <asm/uaccess.h> 751da177e4SLinus Torvalds #include <asm/system.h> 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds #include <linux/errno.h> 781da177e4SLinus Torvalds #include <linux/fs.h> 7974abb989SJan Kara #include <linux/quotaops.h> 801da177e4SLinus Torvalds #include <linux/slab.h> 811da177e4SLinus Torvalds #include <linux/time.h> 821da177e4SLinus Torvalds #include <linux/stat.h> 831da177e4SLinus Torvalds #include <linux/string.h> 841da177e4SLinus Torvalds #include <linux/blkdev.h> 851da177e4SLinus Torvalds #include <linux/init.h> 861da177e4SLinus Torvalds #include <linux/parser.h> 871da177e4SLinus Torvalds #include <linux/smp_lock.h> 881da177e4SLinus Torvalds #include <linux/buffer_head.h> 891da177e4SLinus Torvalds #include <linux/vfs.h> 909e8c4273Svignesh babu #include <linux/log2.h> 912a9807c0SEvgeniy Dushistov #include <linux/mount.h> 922a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 931da177e4SLinus Torvalds 94e5420598SMike Frysinger #include "ufs_fs.h" 95bcd6d4ecSChristoph Hellwig #include "ufs.h" 961da177e4SLinus Torvalds #include "swab.h" 971da177e4SLinus Torvalds #include "util.h" 981da177e4SLinus Torvalds 99abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1001da177e4SLinus Torvalds /* 1011da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1021da177e4SLinus Torvalds */ 1033313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1041da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1051da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1061da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1071da177e4SLinus Torvalds { 1083313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1093313e292SEvgeniy Dushistov 1101da177e4SLinus Torvalds printk("ufs_print_super_stuff\n"); 1113313e292SEvgeniy Dushistov printk(" magic: 0x%x\n", magic); 1123313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 113647b7e87SEvgeniy Dushistov printk(" fs_size: %llu\n", (unsigned long long) 114647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 115647b7e87SEvgeniy Dushistov printk(" fs_dsize: %llu\n", (unsigned long long) 116647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 117647b7e87SEvgeniy Dushistov printk(" bsize: %u\n", 118647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 119647b7e87SEvgeniy Dushistov printk(" fsize: %u\n", 120647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 121647b7e87SEvgeniy Dushistov printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 122647b7e87SEvgeniy Dushistov printk(" fs_sblockloc: %llu\n", (unsigned long long) 123647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 124647b7e87SEvgeniy Dushistov printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 125647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 126647b7e87SEvgeniy Dushistov printk(" cs_nbfree(No of free blocks): %llu\n", 127647b7e87SEvgeniy Dushistov (unsigned long long) 128647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 1293313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", 1303313e292SEvgeniy Dushistov (unsigned long long) 1313313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 1323313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", 1333313e292SEvgeniy Dushistov (unsigned long long) 1343313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 13590b315afSEvgeniy Dushistov printk(KERN_INFO" fs_maxsymlinklen: %u\n", 13690b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 137647b7e87SEvgeniy Dushistov } else { 1381da177e4SLinus Torvalds printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 1391da177e4SLinus Torvalds printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 1401da177e4SLinus Torvalds printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 1411da177e4SLinus Torvalds printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 142647b7e87SEvgeniy Dushistov printk(" cgoffset: %u\n", 143647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 144647b7e87SEvgeniy Dushistov printk(" ~cgmask: 0x%x\n", 145647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 1461da177e4SLinus Torvalds printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 1471da177e4SLinus Torvalds printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 1481da177e4SLinus Torvalds printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 1491da177e4SLinus Torvalds printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 1501da177e4SLinus Torvalds printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 1511da177e4SLinus Torvalds printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 152647b7e87SEvgeniy Dushistov printk(" fragshift: %u\n", 153647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 1541da177e4SLinus Torvalds printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 1551da177e4SLinus Torvalds printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 1561da177e4SLinus Torvalds printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 1571da177e4SLinus Torvalds printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 1581da177e4SLinus Torvalds printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 1591da177e4SLinus Torvalds printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 1601da177e4SLinus Torvalds printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 1611da177e4SLinus Torvalds printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 1621da177e4SLinus Torvalds printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 1631da177e4SLinus Torvalds printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 164647b7e87SEvgeniy Dushistov printk(" fstodb: %u\n", 165647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 1661da177e4SLinus Torvalds printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 167647b7e87SEvgeniy Dushistov printk(" ndir %u\n", 168647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 169647b7e87SEvgeniy Dushistov printk(" nifree %u\n", 170647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 171647b7e87SEvgeniy Dushistov printk(" nbfree %u\n", 172647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 173647b7e87SEvgeniy Dushistov printk(" nffree %u\n", 174647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 1751da177e4SLinus Torvalds } 1761da177e4SLinus Torvalds printk("\n"); 1771da177e4SLinus Torvalds } 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds /* 1801da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 1811da177e4SLinus Torvalds */ 182647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 183647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 1841da177e4SLinus Torvalds { 1851da177e4SLinus Torvalds printk("\nufs_print_cylinder_stuff\n"); 18696710b29SAndrew Morton printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 1871da177e4SLinus Torvalds printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 1881da177e4SLinus Torvalds printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 1891da177e4SLinus Torvalds printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 1901da177e4SLinus Torvalds printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 1911da177e4SLinus Torvalds printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 1921da177e4SLinus Torvalds printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 1931da177e4SLinus Torvalds printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 1941da177e4SLinus Torvalds printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 1951da177e4SLinus Torvalds printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 1961da177e4SLinus Torvalds printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 1971da177e4SLinus Torvalds printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 1981da177e4SLinus Torvalds printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 1991da177e4SLinus Torvalds printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 2001da177e4SLinus Torvalds printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2011da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2021da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2031da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2041da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 2051da177e4SLinus Torvalds printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 2061da177e4SLinus Torvalds printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 2071da177e4SLinus Torvalds printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 2081da177e4SLinus Torvalds printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 2091da177e4SLinus Torvalds printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 210647b7e87SEvgeniy Dushistov printk(" clustersumoff %u\n", 211647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 212647b7e87SEvgeniy Dushistov printk(" clusteroff %u\n", 213647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 214647b7e87SEvgeniy Dushistov printk(" nclusterblks %u\n", 215647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 2161da177e4SLinus Torvalds printk("\n"); 2171da177e4SLinus Torvalds } 218647b7e87SEvgeniy Dushistov #else 2193313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 220647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 221abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2221da177e4SLinus Torvalds 223ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds static char error_buf[1024]; 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2281da177e4SLinus Torvalds const char * fmt, ...) 2291da177e4SLinus Torvalds { 2301da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2311da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2321da177e4SLinus Torvalds va_list args; 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2357b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2381da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2399695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2401da177e4SLinus Torvalds sb->s_dirt = 1; 2411da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2421da177e4SLinus Torvalds } 2431da177e4SLinus Torvalds va_start (args, fmt); 2444a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2451da177e4SLinus Torvalds va_end (args); 2461da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2471da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2481da177e4SLinus Torvalds panic ("UFS-fs panic (device %s): %s: %s\n", 2491da177e4SLinus Torvalds sb->s_id, function, error_buf); 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 2521da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 2531da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 2541da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", 2551da177e4SLinus Torvalds sb->s_id, function, error_buf); 2561da177e4SLinus Torvalds } 2571da177e4SLinus Torvalds } 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 2601da177e4SLinus Torvalds const char * fmt, ...) 2611da177e4SLinus Torvalds { 2621da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2631da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2641da177e4SLinus Torvalds va_list args; 2651da177e4SLinus Torvalds 266337eb00aSAlessio Igor Bogani lock_kernel(); 2671da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2687b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2691da177e4SLinus Torvalds 2701da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2711da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2729695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2731da177e4SLinus Torvalds sb->s_dirt = 1; 2741da177e4SLinus Torvalds } 2751da177e4SLinus Torvalds va_start (args, fmt); 2764a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2771da177e4SLinus Torvalds va_end (args); 2781da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2791da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", 2801da177e4SLinus Torvalds sb->s_id, function, error_buf); 2811da177e4SLinus Torvalds } 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 2841da177e4SLinus Torvalds const char * fmt, ...) 2851da177e4SLinus Torvalds { 2861da177e4SLinus Torvalds va_list args; 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds va_start (args, fmt); 2894a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2901da177e4SLinus Torvalds va_end (args); 2911da177e4SLinus Torvalds printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", 2921da177e4SLinus Torvalds sb->s_id, function, error_buf); 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds enum { 2962a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 2972a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 2982a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 2992a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3002a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3012a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3022a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3032a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3042a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3052a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3062a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3072a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3082a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3092a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3102a9807c0SEvgeniy Dushistov Opt_err 3111da177e4SLinus Torvalds }; 3121da177e4SLinus Torvalds 313a447c093SSteven Whitehouse static const match_table_t tokens = { 3141da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3151da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3161da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 317252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3181da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3191da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3201da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3211da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3221da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3231da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3241da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3252a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3261da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3271da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3281da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3291da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3301da177e4SLinus Torvalds {Opt_err, NULL} 3311da177e4SLinus Torvalds }; 3321da177e4SLinus Torvalds 3331da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3341da177e4SLinus Torvalds { 3351da177e4SLinus Torvalds char * p; 3361da177e4SLinus Torvalds 337abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3381da177e4SLinus Torvalds 3391da177e4SLinus Torvalds if (!options) 3401da177e4SLinus Torvalds return 1; 3411da177e4SLinus Torvalds 3421da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3431da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3441da177e4SLinus Torvalds int token; 3451da177e4SLinus Torvalds if (!*p) 3461da177e4SLinus Torvalds continue; 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds token = match_token(p, tokens, args); 3491da177e4SLinus Torvalds switch (token) { 3501da177e4SLinus Torvalds case Opt_type_old: 3511da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3521da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 3531da177e4SLinus Torvalds break; 3541da177e4SLinus Torvalds case Opt_type_sunx86: 3551da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3561da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 3571da177e4SLinus Torvalds break; 3581da177e4SLinus Torvalds case Opt_type_sun: 3591da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3601da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 3611da177e4SLinus Torvalds break; 362252e211eSMark Fortescue case Opt_type_sunos: 363252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 364252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 365252e211eSMark Fortescue break; 3661da177e4SLinus Torvalds case Opt_type_44bsd: 3671da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3681da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 3691da177e4SLinus Torvalds break; 3701da177e4SLinus Torvalds case Opt_type_ufs2: 3711da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 3721da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 3731da177e4SLinus Torvalds break; 3741da177e4SLinus Torvalds case Opt_type_hp: 3751da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3761da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 3771da177e4SLinus Torvalds break; 3781da177e4SLinus Torvalds case Opt_type_nextstepcd: 3791da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3801da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 3811da177e4SLinus Torvalds break; 3821da177e4SLinus Torvalds case Opt_type_nextstep: 3831da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3841da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 3851da177e4SLinus Torvalds break; 3861da177e4SLinus Torvalds case Opt_type_openstep: 3871da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3881da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 3891da177e4SLinus Torvalds break; 3901da177e4SLinus Torvalds case Opt_onerror_panic: 3911da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 3921da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 3931da177e4SLinus Torvalds break; 3941da177e4SLinus Torvalds case Opt_onerror_lock: 3951da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 3961da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 3971da177e4SLinus Torvalds break; 3981da177e4SLinus Torvalds case Opt_onerror_umount: 3991da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4001da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4011da177e4SLinus Torvalds break; 4021da177e4SLinus Torvalds case Opt_onerror_repair: 4031da177e4SLinus Torvalds printk("UFS-fs: Unable to do repair on error, " 4041da177e4SLinus Torvalds "will lock lock instead\n"); 4051da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4061da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4071da177e4SLinus Torvalds break; 4081da177e4SLinus Torvalds default: 4091da177e4SLinus Torvalds printk("UFS-fs: Invalid option: \"%s\" " 4101da177e4SLinus Torvalds "or missing value\n", p); 4111da177e4SLinus Torvalds return 0; 4121da177e4SLinus Torvalds } 4131da177e4SLinus Torvalds } 4141da177e4SLinus Torvalds return 1; 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds /* 418ee3ffd6cSEvgeniy Dushistov * Diffrent types of UFS hold fs_cstotal in different 419ee3ffd6cSEvgeniy Dushistov * places, and use diffrent data structure for it. 420ee3ffd6cSEvgeniy Dushistov * To make things simplier we just copy fs_cstotal to ufs_sb_private_info 421ee3ffd6cSEvgeniy Dushistov */ 422ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 423ee3ffd6cSEvgeniy Dushistov { 424ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 425ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 426ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 427ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 428ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 429ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 430ee3ffd6cSEvgeniy Dushistov 431ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 432ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 433ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 434ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 435ee3ffd6cSEvgeniy Dushistov 436ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 437ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 438ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 439ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 440ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 441ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 442ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 443ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 444ee3ffd6cSEvgeniy Dushistov } else { 445ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 446ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 447ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 448ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 449ee3ffd6cSEvgeniy Dushistov } 450ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 451ee3ffd6cSEvgeniy Dushistov } 452ee3ffd6cSEvgeniy Dushistov 453ee3ffd6cSEvgeniy Dushistov /* 4541da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 4551da177e4SLinus Torvalds */ 456e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 457e295cfcbSEvgeniy Dushistov { 4581da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 459647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 4601da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 4611da177e4SLinus Torvalds unsigned char * base, * space; 4621da177e4SLinus Torvalds unsigned size, blks, i; 463ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 4641da177e4SLinus Torvalds 465abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 4661da177e4SLinus Torvalds 467647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 4681da177e4SLinus Torvalds /* 4691da177e4SLinus Torvalds * Read cs structures from (usually) first data block 4701da177e4SLinus Torvalds * on the device. 4711da177e4SLinus Torvalds */ 4721da177e4SLinus Torvalds size = uspi->s_cssize; 4731da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 4741da177e4SLinus Torvalds base = space = kmalloc(size, GFP_KERNEL); 4751da177e4SLinus Torvalds if (!base) 4761da177e4SLinus Torvalds goto failed; 477e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 4781da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 4791da177e4SLinus Torvalds size = uspi->s_bsize; 4801da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 4811da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 4821da177e4SLinus Torvalds 4831da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 4847b4ee73eSEvgeniy 4851da177e4SLinus Torvalds if (!ubh) 4861da177e4SLinus Torvalds goto failed; 4877b4ee73eSEvgeniy 4881da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 4897b4ee73eSEvgeniy 4901da177e4SLinus Torvalds space += size; 4911da177e4SLinus Torvalds ubh_brelse (ubh); 4921da177e4SLinus Torvalds ubh = NULL; 4931da177e4SLinus Torvalds } 4941da177e4SLinus Torvalds 4951da177e4SLinus Torvalds /* 4961da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 4971da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 4981da177e4SLinus Torvalds */ 4991da177e4SLinus Torvalds if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) 5001da177e4SLinus Torvalds goto failed; 5011da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5021da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5031da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5041da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5051da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5061da177e4SLinus Torvalds } 5071da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 508abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5091da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5101da177e4SLinus Torvalds goto failed; 5111da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5121da177e4SLinus Torvalds goto failed; 513647b7e87SEvgeniy Dushistov 5141da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5151da177e4SLinus Torvalds } 5161da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5171da177e4SLinus Torvalds if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) 5181da177e4SLinus Torvalds goto failed; 5191da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5201da177e4SLinus Torvalds } 5211da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 522abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5231da177e4SLinus Torvalds return 1; 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds failed: 526f99d49adSJesper Juhl kfree (base); 5271da177e4SLinus Torvalds if (sbi->s_ucg) { 5281da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 529f99d49adSJesper Juhl if (sbi->s_ucg[i]) 530f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5311da177e4SLinus Torvalds kfree (sbi->s_ucg); 5321da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 533f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5341da177e4SLinus Torvalds } 535abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5361da177e4SLinus Torvalds return 0; 5371da177e4SLinus Torvalds } 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds /* 540ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5411da177e4SLinus Torvalds */ 542ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 543ee3ffd6cSEvgeniy Dushistov { 544ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 545ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 546ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 547ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 548ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 549ee3ffd6cSEvgeniy Dushistov 550ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 551ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 552ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 553ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 554ee3ffd6cSEvgeniy Dushistov 555ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 556ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 557ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 558ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 559ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 560ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 561ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 562ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 563ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 564ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 565ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 566ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 567ee3ffd6cSEvgeniy Dushistov } else { 568ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 569ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 570ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 571ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 572ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 573ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 574ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 575ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 576ee3ffd6cSEvgeniy Dushistov } 577ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 5783313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 579ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 580ee3ffd6cSEvgeniy Dushistov } 581ee3ffd6cSEvgeniy Dushistov 582ee3ffd6cSEvgeniy Dushistov /** 583ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 584ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 585ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 586ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 587ee3ffd6cSEvgeniy Dushistov */ 588ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 589e295cfcbSEvgeniy Dushistov { 5901da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 591ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5921da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5931da177e4SLinus Torvalds unsigned char * base, * space; 5941da177e4SLinus Torvalds unsigned blks, size, i; 5951da177e4SLinus Torvalds 596ee3ffd6cSEvgeniy Dushistov 597abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5986cfd0148SChristoph Hellwig 5996cfd0148SChristoph Hellwig lock_kernel(); 6006cfd0148SChristoph Hellwig 601ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6021da177e4SLinus Torvalds size = uspi->s_cssize; 6031da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 604e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6051da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6061da177e4SLinus Torvalds size = uspi->s_bsize; 6071da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6081da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6093313e292SEvgeniy Dushistov 6101da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6113313e292SEvgeniy Dushistov 6121da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6131da177e4SLinus Torvalds space += size; 6141da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6151da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6161da177e4SLinus Torvalds ubh_brelse (ubh); 6171da177e4SLinus Torvalds } 6181da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6191da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6201da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6211da177e4SLinus Torvalds } 6221da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6231da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6241da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6251da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6261da177e4SLinus Torvalds kfree (sbi->s_ucg); 6271da177e4SLinus Torvalds kfree (base); 6286cfd0148SChristoph Hellwig 6296cfd0148SChristoph Hellwig unlock_kernel(); 6306cfd0148SChristoph Hellwig 631abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6321da177e4SLinus Torvalds } 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 6351da177e4SLinus Torvalds { 6361da177e4SLinus Torvalds struct ufs_sb_info * sbi; 6371da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 6381da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 6391da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 6401da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 6411da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6421da177e4SLinus Torvalds struct inode *inode; 6431da177e4SLinus Torvalds unsigned block_size, super_block_size; 6441da177e4SLinus Torvalds unsigned flags; 6457b4ee73eSEvgeniy unsigned super_block_offset; 6469e6766ccSDuane Griffin unsigned maxsymlen; 647b55c460dSDavid Howells int ret = -EINVAL; 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds uspi = NULL; 6501da177e4SLinus Torvalds ubh = NULL; 6511da177e4SLinus Torvalds flags = 0; 6521da177e4SLinus Torvalds 653abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6541da177e4SLinus Torvalds 655f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 6561da177e4SLinus Torvalds if (!sbi) 6571da177e4SLinus Torvalds goto failed_nomem; 6581da177e4SLinus Torvalds sb->s_fs_info = sbi; 6591da177e4SLinus Torvalds 660abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 6611da177e4SLinus Torvalds 6621da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 6631da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 6641da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 6651da177e4SLinus Torvalds "can't be mounted as read-write\n"); 6661da177e4SLinus Torvalds goto failed; 6671da177e4SLinus Torvalds } 6681da177e4SLinus Torvalds #endif 6691da177e4SLinus Torvalds /* 6701da177e4SLinus Torvalds * Set default mount options 6711da177e4SLinus Torvalds * Parse mount options 6721da177e4SLinus Torvalds */ 6731da177e4SLinus Torvalds sbi->s_mount_opt = 0; 6741da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 6751da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 6761da177e4SLinus Torvalds printk("wrong mount options\n"); 6771da177e4SLinus Torvalds goto failed; 6781da177e4SLinus Torvalds } 6791da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 6801da177e4SLinus Torvalds if (!silent) 6811da177e4SLinus Torvalds printk("You didn't specify the type of your ufs filesystem\n\n" 6821da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 683c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 6841da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 6851da177e4SLinus Torvalds "default is ufstype=old\n"); 6861da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 6871da177e4SLinus Torvalds } 6881da177e4SLinus Torvalds 689252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 690252e211eSMark Fortescue sbi->s_uspi = uspi; 6911da177e4SLinus Torvalds if (!uspi) 6921da177e4SLinus Torvalds goto failed; 693f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 6947b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 6957b4ee73eSEvgeniy 6961da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 6971da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 6981da177e4SLinus Torvalds the rules */ 6991da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 7001da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 701abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 7021da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7031da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7041da177e4SLinus Torvalds uspi->s_fshift = 9; 7051da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7061da177e4SLinus Torvalds uspi->s_sbbase = 0; 7071da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7081da177e4SLinus Torvalds break; 7091da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 710abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 7117b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 7121da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7131da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7141da177e4SLinus Torvalds uspi->s_fshift = 9; 7151da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7161da177e4SLinus Torvalds uspi->s_sbbase = 0; 7171da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7181da177e4SLinus Torvalds break; 7191da177e4SLinus Torvalds 7201da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 721abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 7221da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7231da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7241da177e4SLinus Torvalds uspi->s_fshift = 10; 7251da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7261da177e4SLinus Torvalds uspi->s_sbbase = 0; 727252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7281da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 7291da177e4SLinus Torvalds break; 7301da177e4SLinus Torvalds 731252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 732252e211eSMark Fortescue UFSD(("ufstype=sunos\n")) 733252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 734252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 735252e211eSMark Fortescue uspi->s_fshift = 10; 736252e211eSMark Fortescue uspi->s_sbsize = 2048; 737252e211eSMark Fortescue super_block_size = 2048; 738252e211eSMark Fortescue uspi->s_sbbase = 0; 739252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 740252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 741252e211eSMark Fortescue break; 742252e211eSMark Fortescue 7431da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 744abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 7451da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7461da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7471da177e4SLinus Torvalds uspi->s_fshift = 10; 7481da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7491da177e4SLinus Torvalds uspi->s_sbbase = 0; 750252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7511da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 7521da177e4SLinus Torvalds break; 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 755abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 7561da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7571da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7581da177e4SLinus Torvalds uspi->s_fshift = 10; 7591da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7601da177e4SLinus Torvalds uspi->s_sbbase = 0; 7611da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7621da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7631da177e4SLinus Torvalds if (!silent) 7641da177e4SLinus Torvalds printk(KERN_INFO "ufstype=old is supported read-only\n"); 7651da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7661da177e4SLinus Torvalds } 7671da177e4SLinus Torvalds break; 7681da177e4SLinus Torvalds 7691da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 770abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 7711da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7721da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7731da177e4SLinus Torvalds uspi->s_fshift = 10; 7741da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7751da177e4SLinus Torvalds uspi->s_sbbase = 0; 7760c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 7771da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7781da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7791da177e4SLinus Torvalds if (!silent) 7801da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); 7811da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds break; 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 786abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 7871da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 7881da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 7891da177e4SLinus Torvalds uspi->s_fshift = 11; 7901da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7911da177e4SLinus Torvalds uspi->s_sbbase = 0; 7920c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 7931da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7941da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7951da177e4SLinus Torvalds if (!silent) 7961da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); 7971da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7981da177e4SLinus Torvalds } 7991da177e4SLinus Torvalds break; 8001da177e4SLinus Torvalds 8011da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 802abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 8031da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8041da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8051da177e4SLinus Torvalds uspi->s_fshift = 10; 8061da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8071da177e4SLinus Torvalds uspi->s_sbbase = 0; 808f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 8091da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8101da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8111da177e4SLinus Torvalds if (!silent) 8121da177e4SLinus Torvalds printk(KERN_INFO "ufstype=openstep is supported read-only\n"); 8131da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8141da177e4SLinus Torvalds } 8151da177e4SLinus Torvalds break; 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 818abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 8191da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8201da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8211da177e4SLinus Torvalds uspi->s_fshift = 10; 8221da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8231da177e4SLinus Torvalds uspi->s_sbbase = 0; 8241da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8251da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8261da177e4SLinus Torvalds if (!silent) 8271da177e4SLinus Torvalds printk(KERN_INFO "ufstype=hp is supported read-only\n"); 8281da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8291da177e4SLinus Torvalds } 8301da177e4SLinus Torvalds break; 8311da177e4SLinus Torvalds default: 8321da177e4SLinus Torvalds if (!silent) 8331da177e4SLinus Torvalds printk("unknown ufstype\n"); 8341da177e4SLinus Torvalds goto failed; 8351da177e4SLinus Torvalds } 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds again: 8381da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 8391da177e4SLinus Torvalds printk(KERN_ERR "UFS: failed to set blocksize\n"); 8401da177e4SLinus Torvalds goto failed; 8411da177e4SLinus Torvalds } 8421da177e4SLinus Torvalds 8431da177e4SLinus Torvalds /* 8441da177e4SLinus Torvalds * read ufs super block from device 8451da177e4SLinus Torvalds */ 8467b4ee73eSEvgeniy 8477b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 8487b4ee73eSEvgeniy 8491da177e4SLinus Torvalds if (!ubh) 8501da177e4SLinus Torvalds goto failed; 8511da177e4SLinus Torvalds 8527b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 8537b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 8547b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 8551da177e4SLinus Torvalds 856252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 857252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 858252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 859252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 860252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 861252e211eSMark Fortescue flags |= UFS_ST_SUN; 862252e211eSMark Fortescue } 863252e211eSMark Fortescue 8641da177e4SLinus Torvalds /* 8651da177e4SLinus Torvalds * Check ufs magic number 8661da177e4SLinus Torvalds */ 8671da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 8681da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 8691da177e4SLinus Torvalds case UFS_MAGIC: 8701da177e4SLinus Torvalds case UFS2_MAGIC: 8711da177e4SLinus Torvalds case UFS_MAGIC_LFN: 8721da177e4SLinus Torvalds case UFS_MAGIC_FEA: 8731da177e4SLinus Torvalds case UFS_MAGIC_4GB: 8741da177e4SLinus Torvalds goto magic_found; 8751da177e4SLinus Torvalds } 8761da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 8771da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 8781da177e4SLinus Torvalds case UFS_MAGIC: 8791da177e4SLinus Torvalds case UFS2_MAGIC: 8801da177e4SLinus Torvalds case UFS_MAGIC_LFN: 8811da177e4SLinus Torvalds case UFS_MAGIC_FEA: 8821da177e4SLinus Torvalds case UFS_MAGIC_4GB: 8831da177e4SLinus Torvalds goto magic_found; 8841da177e4SLinus Torvalds } 8851da177e4SLinus Torvalds 8861da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 8871da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 8881da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 8891da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 8901da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 8911da177e4SLinus Torvalds ubh = NULL; 8921da177e4SLinus Torvalds uspi->s_sbbase += 8; 8931da177e4SLinus Torvalds goto again; 8941da177e4SLinus Torvalds } 8951da177e4SLinus Torvalds if (!silent) 8961da177e4SLinus Torvalds printk("ufs_read_super: bad magic number\n"); 8971da177e4SLinus Torvalds goto failed; 8981da177e4SLinus Torvalds 8991da177e4SLinus Torvalds magic_found: 9001da177e4SLinus Torvalds /* 9011da177e4SLinus Torvalds * Check block and fragment sizes 9021da177e4SLinus Torvalds */ 9031da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 9041da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 9051da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 9061da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 9071da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 9081da177e4SLinus Torvalds 9099e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 9101da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 9111da177e4SLinus Torvalds uspi->s_fsize); 9121da177e4SLinus Torvalds goto failed; 9131da177e4SLinus Torvalds } 9141da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 9151da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", 9161da177e4SLinus Torvalds uspi->s_fsize); 9171da177e4SLinus Torvalds goto failed; 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 9201da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", 9211da177e4SLinus Torvalds uspi->s_fsize); 9221da177e4SLinus Torvalds goto failed; 9231da177e4SLinus Torvalds } 9249e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 9251da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 9261da177e4SLinus Torvalds uspi->s_bsize); 9271da177e4SLinus Torvalds goto failed; 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 9301da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is too small\n", 9311da177e4SLinus Torvalds uspi->s_bsize); 9321da177e4SLinus Torvalds goto failed; 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 9351da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", 9361da177e4SLinus Torvalds uspi->s_bsize / uspi->s_fsize); 9371da177e4SLinus Torvalds goto failed; 9381da177e4SLinus Torvalds } 9391da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 9401da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 9411da177e4SLinus Torvalds ubh = NULL; 9421da177e4SLinus Torvalds block_size = uspi->s_fsize; 9431da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 944abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 9451da177e4SLinus Torvalds goto again; 9461da177e4SLinus Torvalds } 9471da177e4SLinus Torvalds 948f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 9493313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 9501da177e4SLinus Torvalds 9511da177e4SLinus Torvalds /* 9521da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 9531da177e4SLinus Torvalds * If not, make it read only. 9541da177e4SLinus Torvalds */ 955f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 9561da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 957f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 958f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 959f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 960f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 9611da177e4SLinus Torvalds switch(usb1->fs_clean) { 9621da177e4SLinus Torvalds case UFS_FSCLEAN: 963abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 9641da177e4SLinus Torvalds break; 9651da177e4SLinus Torvalds case UFS_FSSTABLE: 966abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 9671da177e4SLinus Torvalds break; 9681da177e4SLinus Torvalds case UFS_FSOSF1: 969abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 9701da177e4SLinus Torvalds break; 9711da177e4SLinus Torvalds case UFS_FSACTIVE: 9721da177e4SLinus Torvalds printk("ufs_read_super: fs is active\n"); 9731da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9741da177e4SLinus Torvalds break; 9751da177e4SLinus Torvalds case UFS_FSBAD: 9761da177e4SLinus Torvalds printk("ufs_read_super: fs is bad\n"); 9771da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9781da177e4SLinus Torvalds break; 9791da177e4SLinus Torvalds default: 9801da177e4SLinus Torvalds printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); 9811da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9821da177e4SLinus Torvalds break; 9831da177e4SLinus Torvalds } 984ee3ffd6cSEvgeniy Dushistov } else { 9851da177e4SLinus Torvalds printk("ufs_read_super: fs needs fsck\n"); 9861da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9871da177e4SLinus Torvalds } 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds /* 9901da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 9911da177e4SLinus Torvalds */ 9921da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 9931da177e4SLinus Torvalds sb->dq_op = NULL; /***/ 9941da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 9971da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 9981da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 9991da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 10001da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 10011da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 10021da177e4SLinus Torvalds 10031da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1004647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1005647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1006647b7e87SEvgeniy Dushistov } else { 10071da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 10081da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds 10111da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 10121da177e4SLinus Torvalds /* s_bsize already set */ 10131da177e4SLinus Torvalds /* s_fsize already set */ 10141da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 10151da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 10161da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 10171da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10181da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 10191da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1020abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1021abf5d15fSEvgeniy Dushistov uspi->s_fshift); 10221da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 10231da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 10241da177e4SLinus Torvalds /* s_sbsize already set */ 10251da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 10261da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 10271da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 10281da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 10291da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 10301da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 10311da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 10321da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 10333313e292SEvgeniy Dushistov 10343313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 10353313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 10363313e292SEvgeniy Dushistov else 10371da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 10383313e292SEvgeniy Dushistov 10391da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 10401da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 10411da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 10421da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 10431da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 10441da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 10451da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1046647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1047647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 10481da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 10491da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 10501da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 10511da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 10521da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 10531da177e4SLinus Torvalds 10541da177e4SLinus Torvalds /* 10551da177e4SLinus Torvalds * Compute another frequently used values 10561da177e4SLinus Torvalds */ 10571da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1058abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 10591da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1060abf5d15fSEvgeniy Dushistov else 10611da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1062abf5d15fSEvgeniy Dushistov 10631da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 10641da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 10651da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 10661da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 10671da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 10681da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 10691da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 10701da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 10711da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 10721da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 10731da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 10741da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 107590b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 107690b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 10771da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1078647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 10791da177e4SLinus Torvalds 10809e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 10819e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 10829e6766ccSDuane Griffin else 10839e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 10849e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 10859e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 10869e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 10879e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 10889e6766ccSDuane Griffin } 10899e6766ccSDuane Griffin 1090b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1091b55c460dSDavid Howells if (IS_ERR(inode)) { 1092b55c460dSDavid Howells ret = PTR_ERR(inode); 10931da177e4SLinus Torvalds goto failed; 1094b55c460dSDavid Howells } 10951da177e4SLinus Torvalds sb->s_root = d_alloc_root(inode); 1096b55c460dSDavid Howells if (!sb->s_root) { 1097b55c460dSDavid Howells ret = -ENOMEM; 10981da177e4SLinus Torvalds goto dalloc_failed; 1099b55c460dSDavid Howells } 11001da177e4SLinus Torvalds 1101ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 11021da177e4SLinus Torvalds /* 11031da177e4SLinus Torvalds * Read cylinder group structures 11041da177e4SLinus Torvalds */ 11051da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 11061da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 11071da177e4SLinus Torvalds goto failed; 11081da177e4SLinus Torvalds 1109abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11101da177e4SLinus Torvalds return 0; 11111da177e4SLinus Torvalds 11121da177e4SLinus Torvalds dalloc_failed: 11131da177e4SLinus Torvalds iput(inode); 11141da177e4SLinus Torvalds failed: 1115f99d49adSJesper Juhl if (ubh) 1116f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1117f99d49adSJesper Juhl kfree (uspi); 1118f99d49adSJesper Juhl kfree(sbi); 11191da177e4SLinus Torvalds sb->s_fs_info = NULL; 1120abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1121b55c460dSDavid Howells return ret; 11221da177e4SLinus Torvalds 11231da177e4SLinus Torvalds failed_nomem: 1124abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 11251da177e4SLinus Torvalds return -ENOMEM; 11261da177e4SLinus Torvalds } 11271da177e4SLinus Torvalds 11288c800656SChristoph Hellwig static int ufs_sync_fs(struct super_block *sb, int wait) 1129647b7e87SEvgeniy Dushistov { 11301da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 11311da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 11321da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 11331da177e4SLinus Torvalds unsigned flags; 11341da177e4SLinus Torvalds 1135ebc1ac16SChristoph Hellwig lock_super(sb); 11361da177e4SLinus Torvalds lock_kernel(); 11378c800656SChristoph Hellwig 1138abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 11398c800656SChristoph Hellwig 11401da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 11411da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 11427b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 11437b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 11441da177e4SLinus Torvalds 11451da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 11468c800656SChristoph Hellwig if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 11478c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 11488c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 11491da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 11501da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 1151ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 11521da177e4SLinus Torvalds sb->s_dirt = 0; 11538c800656SChristoph Hellwig 1154abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11551da177e4SLinus Torvalds unlock_kernel(); 1156ebc1ac16SChristoph Hellwig unlock_super(sb); 11578c800656SChristoph Hellwig 11588c800656SChristoph Hellwig return 0; 11598c800656SChristoph Hellwig } 11608c800656SChristoph Hellwig 11618c800656SChristoph Hellwig static void ufs_write_super(struct super_block *sb) 11628c800656SChristoph Hellwig { 11638c800656SChristoph Hellwig if (!(sb->s_flags & MS_RDONLY)) 11648c800656SChristoph Hellwig ufs_sync_fs(sb, 1); 11658c800656SChristoph Hellwig else 11668c800656SChristoph Hellwig sb->s_dirt = 0; 11671da177e4SLinus Torvalds } 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds static void ufs_put_super(struct super_block *sb) 11701da177e4SLinus Torvalds { 11711da177e4SLinus Torvalds struct ufs_sb_info * sbi = UFS_SB(sb); 11721da177e4SLinus Torvalds 1173abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 11741da177e4SLinus Torvalds 11758c85e125SChristoph Hellwig if (sb->s_dirt) 11768c85e125SChristoph Hellwig ufs_write_super(sb); 11778c85e125SChristoph Hellwig 11781da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 1179ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds ubh_brelse_uspi (sbi->s_uspi); 11821da177e4SLinus Torvalds kfree (sbi->s_uspi); 11831da177e4SLinus Torvalds kfree (sbi); 11841da177e4SLinus Torvalds sb->s_fs_info = NULL; 1185abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11861da177e4SLinus Torvalds return; 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 11891da177e4SLinus Torvalds 11901da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 11911da177e4SLinus Torvalds { 11921da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 11931da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 11941da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 11951da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 11961da177e4SLinus Torvalds unsigned flags; 11971da177e4SLinus Torvalds 1198337eb00aSAlessio Igor Bogani lock_kernel(); 1199bbd6851aSAl Viro lock_super(sb); 12001da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12011da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12027b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12037b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvalds /* 12061da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 12071da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 12081da177e4SLinus Torvalds */ 12091da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 12101da177e4SLinus Torvalds new_mount_opt = 0; 12111da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1212bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1213bbd6851aSAl Viro unlock_super(sb); 1214337eb00aSAlessio Igor Bogani unlock_kernel(); 12151da177e4SLinus Torvalds return -EINVAL; 1216bbd6851aSAl Viro } 12171da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 12181da177e4SLinus Torvalds new_mount_opt |= ufstype; 1219ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 12201da177e4SLinus Torvalds printk("ufstype can't be changed during remount\n"); 1221bbd6851aSAl Viro unlock_super(sb); 1222337eb00aSAlessio Igor Bogani unlock_kernel(); 12231da177e4SLinus Torvalds return -EINVAL; 12241da177e4SLinus Torvalds } 12251da177e4SLinus Torvalds 12261da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 12271da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1228bbd6851aSAl Viro unlock_super(sb); 1229337eb00aSAlessio Igor Bogani unlock_kernel(); 12301da177e4SLinus Torvalds return 0; 12311da177e4SLinus Torvalds } 12321da177e4SLinus Torvalds 12331da177e4SLinus Torvalds /* 12341da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 12351da177e4SLinus Torvalds */ 12361da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1237ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 12381da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 12391da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1240252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 12411da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 12421da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 12431da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 12449695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 12451da177e4SLinus Torvalds sb->s_dirt = 0; 12461da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1247ee3ffd6cSEvgeniy Dushistov } else { 12481da177e4SLinus Torvalds /* 12491da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 12501da177e4SLinus Torvalds */ 12511da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 12521da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 12531da177e4SLinus Torvalds "can't be mounted as read-write\n"); 1254bbd6851aSAl Viro unlock_super(sb); 1255337eb00aSAlessio Igor Bogani unlock_kernel(); 12561da177e4SLinus Torvalds return -EINVAL; 12571da177e4SLinus Torvalds #else 12581da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1259252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 12601da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1261cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1262cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 12631da177e4SLinus Torvalds printk("this ufstype is read-only supported\n"); 1264bbd6851aSAl Viro unlock_super(sb); 1265337eb00aSAlessio Igor Bogani unlock_kernel(); 12661da177e4SLinus Torvalds return -EINVAL; 12671da177e4SLinus Torvalds } 12681da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 12691da177e4SLinus Torvalds printk("failed during remounting\n"); 1270bbd6851aSAl Viro unlock_super(sb); 1271337eb00aSAlessio Igor Bogani unlock_kernel(); 12721da177e4SLinus Torvalds return -EPERM; 12731da177e4SLinus Torvalds } 12741da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 12751da177e4SLinus Torvalds #endif 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1278bbd6851aSAl Viro unlock_super(sb); 1279337eb00aSAlessio Igor Bogani unlock_kernel(); 12801da177e4SLinus Torvalds return 0; 12811da177e4SLinus Torvalds } 12821da177e4SLinus Torvalds 12832a9807c0SEvgeniy Dushistov static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs) 12842a9807c0SEvgeniy Dushistov { 12852a9807c0SEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb); 12862a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1287a447c093SSteven Whitehouse const struct match_token *tp = tokens; 12882a9807c0SEvgeniy Dushistov 12892a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 12902a9807c0SEvgeniy Dushistov ++tp; 12912a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 12922a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 12932a9807c0SEvgeniy Dushistov 12942a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 12952a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 12962a9807c0SEvgeniy Dushistov ++tp; 12972a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 12982a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 12992a9807c0SEvgeniy Dushistov 13002a9807c0SEvgeniy Dushistov return 0; 13012a9807c0SEvgeniy Dushistov } 13022a9807c0SEvgeniy Dushistov 1303726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 13041da177e4SLinus Torvalds { 1305726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1306647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1307647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 13081da177e4SLinus Torvalds struct ufs_super_block_first *usb1; 1309647b7e87SEvgeniy Dushistov struct ufs_super_block_second *usb2; 1310647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 131141d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 13121da177e4SLinus Torvalds 13131da177e4SLinus Torvalds lock_kernel(); 13141da177e4SLinus Torvalds 13157b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 1316647b7e87SEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 1317647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 13201da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1321647b7e87SEvgeniy Dushistov buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1322647b7e87SEvgeniy Dushistov } else { 13231da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 13241da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 13251da177e4SLinus Torvalds } 1326ee3ffd6cSEvgeniy Dushistov buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + 1327ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree; 1328ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 13291da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 13301da177e4SLinus Torvalds buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) 13311da177e4SLinus Torvalds ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; 13321da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 13331da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 133441d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 133541d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 13361da177e4SLinus Torvalds 13371da177e4SLinus Torvalds unlock_kernel(); 13381da177e4SLinus Torvalds 13391da177e4SLinus Torvalds return 0; 13401da177e4SLinus Torvalds } 13411da177e4SLinus Torvalds 1342e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 13431da177e4SLinus Torvalds 13441da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 13451da177e4SLinus Torvalds { 13461da177e4SLinus Torvalds struct ufs_inode_info *ei; 1347e94b1766SChristoph Lameter ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_KERNEL); 13481da177e4SLinus Torvalds if (!ei) 13491da177e4SLinus Torvalds return NULL; 13501da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 13511da177e4SLinus Torvalds return &ei->vfs_inode; 13521da177e4SLinus Torvalds } 13531da177e4SLinus Torvalds 13541da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 13551da177e4SLinus Torvalds { 13561da177e4SLinus Torvalds kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 13571da177e4SLinus Torvalds } 13581da177e4SLinus Torvalds 135951cc5068SAlexey Dobriyan static void init_once(void *foo) 13601da177e4SLinus Torvalds { 13611da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 13621da177e4SLinus Torvalds 13631da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 13641da177e4SLinus Torvalds } 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds static int init_inodecache(void) 13671da177e4SLinus Torvalds { 13681da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 13691da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1370fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 1371fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 137220c2df83SPaul Mundt init_once); 13731da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 13741da177e4SLinus Torvalds return -ENOMEM; 13751da177e4SLinus Torvalds return 0; 13761da177e4SLinus Torvalds } 13771da177e4SLinus Torvalds 13781da177e4SLinus Torvalds static void destroy_inodecache(void) 13791da177e4SLinus Torvalds { 13801a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 13811da177e4SLinus Torvalds } 13821da177e4SLinus Torvalds 13831da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 13841da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t); 13851da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t); 13861da177e4SLinus Torvalds #endif 13871da177e4SLinus Torvalds 1388ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 13891da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 13901da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 13911da177e4SLinus Torvalds .write_inode = ufs_write_inode, 13921da177e4SLinus Torvalds .delete_inode = ufs_delete_inode, 13931da177e4SLinus Torvalds .put_super = ufs_put_super, 13941da177e4SLinus Torvalds .write_super = ufs_write_super, 13958c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 13961da177e4SLinus Torvalds .statfs = ufs_statfs, 13971da177e4SLinus Torvalds .remount_fs = ufs_remount, 13982a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 13991da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 14001da177e4SLinus Torvalds .quota_read = ufs_quota_read, 14011da177e4SLinus Torvalds .quota_write = ufs_quota_write, 14021da177e4SLinus Torvalds #endif 14031da177e4SLinus Torvalds }; 14041da177e4SLinus Torvalds 14051da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 14061da177e4SLinus Torvalds 14071da177e4SLinus Torvalds /* Read data from quotafile - avoid pagecache and such because we cannot afford 14081da177e4SLinus Torvalds * acquiring the locks... As quota files are never truncated and quota code 14091da177e4SLinus Torvalds * itself serializes the operations (and noone else should touch the files) 14101da177e4SLinus Torvalds * we don't have to be afraid of races */ 14111da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data, 14121da177e4SLinus Torvalds size_t len, loff_t off) 14131da177e4SLinus Torvalds { 14141da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 14151da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 14161da177e4SLinus Torvalds int err = 0; 14171da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 14181da177e4SLinus Torvalds int tocopy; 14191da177e4SLinus Torvalds size_t toread; 14201da177e4SLinus Torvalds struct buffer_head *bh; 14211da177e4SLinus Torvalds loff_t i_size = i_size_read(inode); 14221da177e4SLinus Torvalds 14231da177e4SLinus Torvalds if (off > i_size) 14241da177e4SLinus Torvalds return 0; 14251da177e4SLinus Torvalds if (off+len > i_size) 14261da177e4SLinus Torvalds len = i_size-off; 14271da177e4SLinus Torvalds toread = len; 14281da177e4SLinus Torvalds while (toread > 0) { 14291da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < toread ? 14301da177e4SLinus Torvalds sb->s_blocksize - offset : toread; 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 0, &err); 14331da177e4SLinus Torvalds if (err) 14341da177e4SLinus Torvalds return err; 14351da177e4SLinus Torvalds if (!bh) /* A hole? */ 14361da177e4SLinus Torvalds memset(data, 0, tocopy); 14371da177e4SLinus Torvalds else { 14381da177e4SLinus Torvalds memcpy(data, bh->b_data+offset, tocopy); 14391da177e4SLinus Torvalds brelse(bh); 14401da177e4SLinus Torvalds } 14411da177e4SLinus Torvalds offset = 0; 14421da177e4SLinus Torvalds toread -= tocopy; 14431da177e4SLinus Torvalds data += tocopy; 14441da177e4SLinus Torvalds blk++; 14451da177e4SLinus Torvalds } 14461da177e4SLinus Torvalds return len; 14471da177e4SLinus Torvalds } 14481da177e4SLinus Torvalds 14491da177e4SLinus Torvalds /* Write to quotafile */ 14501da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *sb, int type, 14511da177e4SLinus Torvalds const char *data, size_t len, loff_t off) 14521da177e4SLinus Torvalds { 14531da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 14541da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 14551da177e4SLinus Torvalds int err = 0; 14561da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 14571da177e4SLinus Torvalds int tocopy; 14581da177e4SLinus Torvalds size_t towrite = len; 14591da177e4SLinus Torvalds struct buffer_head *bh; 14601da177e4SLinus Torvalds 14615c81a419SArjan van de Ven mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); 14621da177e4SLinus Torvalds while (towrite > 0) { 14631da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < towrite ? 14641da177e4SLinus Torvalds sb->s_blocksize - offset : towrite; 14651da177e4SLinus Torvalds 14661da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 1, &err); 14671da177e4SLinus Torvalds if (!bh) 14681da177e4SLinus Torvalds goto out; 14691da177e4SLinus Torvalds lock_buffer(bh); 14701da177e4SLinus Torvalds memcpy(bh->b_data+offset, data, tocopy); 14711da177e4SLinus Torvalds flush_dcache_page(bh->b_page); 14721da177e4SLinus Torvalds set_buffer_uptodate(bh); 14731da177e4SLinus Torvalds mark_buffer_dirty(bh); 14741da177e4SLinus Torvalds unlock_buffer(bh); 14751da177e4SLinus Torvalds brelse(bh); 14761da177e4SLinus Torvalds offset = 0; 14771da177e4SLinus Torvalds towrite -= tocopy; 14781da177e4SLinus Torvalds data += tocopy; 14791da177e4SLinus Torvalds blk++; 14801da177e4SLinus Torvalds } 14811da177e4SLinus Torvalds out: 148215b2fe39SEvgeniy Polyakov if (len == towrite) { 14831b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 14841da177e4SLinus Torvalds return err; 148515b2fe39SEvgeniy Polyakov } 14861da177e4SLinus Torvalds if (inode->i_size < off+len-towrite) 14871da177e4SLinus Torvalds i_size_write(inode, off+len-towrite); 14881da177e4SLinus Torvalds inode->i_version++; 14891da177e4SLinus Torvalds inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; 14901da177e4SLinus Torvalds mark_inode_dirty(inode); 14911b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 14921da177e4SLinus Torvalds return len - towrite; 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 14951da177e4SLinus Torvalds #endif 14961da177e4SLinus Torvalds 1497454e2398SDavid Howells static int ufs_get_sb(struct file_system_type *fs_type, 1498454e2398SDavid Howells int flags, const char *dev_name, void *data, struct vfsmount *mnt) 14991da177e4SLinus Torvalds { 1500454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); 15011da177e4SLinus Torvalds } 15021da177e4SLinus Torvalds 15031da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 15041da177e4SLinus Torvalds .owner = THIS_MODULE, 15051da177e4SLinus Torvalds .name = "ufs", 15061da177e4SLinus Torvalds .get_sb = ufs_get_sb, 15071da177e4SLinus Torvalds .kill_sb = kill_block_super, 15081da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15091da177e4SLinus Torvalds }; 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15121da177e4SLinus Torvalds { 15131da177e4SLinus Torvalds int err = init_inodecache(); 15141da177e4SLinus Torvalds if (err) 15151da177e4SLinus Torvalds goto out1; 15161da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15171da177e4SLinus Torvalds if (err) 15181da177e4SLinus Torvalds goto out; 15191da177e4SLinus Torvalds return 0; 15201da177e4SLinus Torvalds out: 15211da177e4SLinus Torvalds destroy_inodecache(); 15221da177e4SLinus Torvalds out1: 15231da177e4SLinus Torvalds return err; 15241da177e4SLinus Torvalds } 15251da177e4SLinus Torvalds 15261da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15271da177e4SLinus Torvalds { 15281da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15291da177e4SLinus Torvalds destroy_inodecache(); 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds 15321da177e4SLinus Torvalds module_init(init_ufs_fs) 15331da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15341da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1535