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 441da177e4SLinus Torvalds * Gertjan van Wingerde <gertjan@cs.vu.nl> 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> 791da177e4SLinus Torvalds #include <linux/ufs_fs.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 941da177e4SLinus Torvalds #include "swab.h" 951da177e4SLinus Torvalds #include "util.h" 961da177e4SLinus Torvalds 97abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 981da177e4SLinus Torvalds /* 991da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1001da177e4SLinus Torvalds */ 1013313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1021da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1031da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1041da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1051da177e4SLinus Torvalds { 1063313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1073313e292SEvgeniy Dushistov 1081da177e4SLinus Torvalds printk("ufs_print_super_stuff\n"); 1093313e292SEvgeniy Dushistov printk(" magic: 0x%x\n", magic); 1103313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 111647b7e87SEvgeniy Dushistov printk(" fs_size: %llu\n", (unsigned long long) 112647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 113647b7e87SEvgeniy Dushistov printk(" fs_dsize: %llu\n", (unsigned long long) 114647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 115647b7e87SEvgeniy Dushistov printk(" bsize: %u\n", 116647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 117647b7e87SEvgeniy Dushistov printk(" fsize: %u\n", 118647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 119647b7e87SEvgeniy Dushistov printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 120647b7e87SEvgeniy Dushistov printk(" fs_sblockloc: %llu\n", (unsigned long long) 121647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 122647b7e87SEvgeniy Dushistov printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 123647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 124647b7e87SEvgeniy Dushistov printk(" cs_nbfree(No of free blocks): %llu\n", 125647b7e87SEvgeniy Dushistov (unsigned long long) 126647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 1273313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", 1283313e292SEvgeniy Dushistov (unsigned long long) 1293313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 1303313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", 1313313e292SEvgeniy Dushistov (unsigned long long) 1323313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 133647b7e87SEvgeniy Dushistov } else { 1341da177e4SLinus Torvalds printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 1351da177e4SLinus Torvalds printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 1361da177e4SLinus Torvalds printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 1371da177e4SLinus Torvalds printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 138647b7e87SEvgeniy Dushistov printk(" cgoffset: %u\n", 139647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 140647b7e87SEvgeniy Dushistov printk(" ~cgmask: 0x%x\n", 141647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 1421da177e4SLinus Torvalds printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 1431da177e4SLinus Torvalds printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 1441da177e4SLinus Torvalds printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 1451da177e4SLinus Torvalds printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 1461da177e4SLinus Torvalds printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 1471da177e4SLinus Torvalds printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 148647b7e87SEvgeniy Dushistov printk(" fragshift: %u\n", 149647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 1501da177e4SLinus Torvalds printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 1511da177e4SLinus Torvalds printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 1521da177e4SLinus Torvalds printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 1531da177e4SLinus Torvalds printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 1541da177e4SLinus Torvalds printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 1551da177e4SLinus Torvalds printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 1561da177e4SLinus Torvalds printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 1571da177e4SLinus Torvalds printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 1581da177e4SLinus Torvalds printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 1591da177e4SLinus Torvalds printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 160647b7e87SEvgeniy Dushistov printk(" fstodb: %u\n", 161647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 1621da177e4SLinus Torvalds printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 163647b7e87SEvgeniy Dushistov printk(" ndir %u\n", 164647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 165647b7e87SEvgeniy Dushistov printk(" nifree %u\n", 166647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 167647b7e87SEvgeniy Dushistov printk(" nbfree %u\n", 168647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 169647b7e87SEvgeniy Dushistov printk(" nffree %u\n", 170647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 1711da177e4SLinus Torvalds } 1721da177e4SLinus Torvalds printk("\n"); 1731da177e4SLinus Torvalds } 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds /* 1761da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 1771da177e4SLinus Torvalds */ 178647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 179647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 1801da177e4SLinus Torvalds { 1811da177e4SLinus Torvalds printk("\nufs_print_cylinder_stuff\n"); 18296710b29SAndrew Morton printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 1831da177e4SLinus Torvalds printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 1841da177e4SLinus Torvalds printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 1851da177e4SLinus Torvalds printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 1861da177e4SLinus Torvalds printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 1871da177e4SLinus Torvalds printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 1881da177e4SLinus Torvalds printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 1891da177e4SLinus Torvalds printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 1901da177e4SLinus Torvalds printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 1911da177e4SLinus Torvalds printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 1921da177e4SLinus Torvalds printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 1931da177e4SLinus Torvalds printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 1941da177e4SLinus Torvalds printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 1951da177e4SLinus Torvalds printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 1961da177e4SLinus Torvalds printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 1971da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 1981da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 1991da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2001da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 2011da177e4SLinus Torvalds printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 2021da177e4SLinus Torvalds printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 2031da177e4SLinus Torvalds printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 2041da177e4SLinus Torvalds printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 2051da177e4SLinus Torvalds printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 206647b7e87SEvgeniy Dushistov printk(" clustersumoff %u\n", 207647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 208647b7e87SEvgeniy Dushistov printk(" clusteroff %u\n", 209647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 210647b7e87SEvgeniy Dushistov printk(" nclusterblks %u\n", 211647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 2121da177e4SLinus Torvalds printk("\n"); 2131da177e4SLinus Torvalds } 214647b7e87SEvgeniy Dushistov #else 2153313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 216647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 217abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2181da177e4SLinus Torvalds 219ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2201da177e4SLinus Torvalds 2211da177e4SLinus Torvalds static char error_buf[1024]; 2221da177e4SLinus Torvalds 2231da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2241da177e4SLinus Torvalds const char * fmt, ...) 2251da177e4SLinus Torvalds { 2261da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2271da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2281da177e4SLinus Torvalds va_list args; 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2317b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2321da177e4SLinus Torvalds 2331da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2341da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2359695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2361da177e4SLinus Torvalds sb->s_dirt = 1; 2371da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2381da177e4SLinus Torvalds } 2391da177e4SLinus Torvalds va_start (args, fmt); 2404a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2411da177e4SLinus Torvalds va_end (args); 2421da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2431da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2441da177e4SLinus Torvalds panic ("UFS-fs panic (device %s): %s: %s\n", 2451da177e4SLinus Torvalds sb->s_id, function, error_buf); 2461da177e4SLinus Torvalds 2471da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 2481da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 2491da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 2501da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", 2511da177e4SLinus Torvalds sb->s_id, function, error_buf); 2521da177e4SLinus Torvalds } 2531da177e4SLinus Torvalds } 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 2561da177e4SLinus Torvalds const char * fmt, ...) 2571da177e4SLinus Torvalds { 2581da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2591da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2601da177e4SLinus Torvalds va_list args; 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2637b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2641da177e4SLinus Torvalds 2651da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2661da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2679695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2681da177e4SLinus Torvalds sb->s_dirt = 1; 2691da177e4SLinus Torvalds } 2701da177e4SLinus Torvalds va_start (args, fmt); 2714a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2721da177e4SLinus Torvalds va_end (args); 2731da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2741da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", 2751da177e4SLinus Torvalds sb->s_id, function, error_buf); 2761da177e4SLinus Torvalds } 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 2791da177e4SLinus Torvalds const char * fmt, ...) 2801da177e4SLinus Torvalds { 2811da177e4SLinus Torvalds va_list args; 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds va_start (args, fmt); 2844a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2851da177e4SLinus Torvalds va_end (args); 2861da177e4SLinus Torvalds printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", 2871da177e4SLinus Torvalds sb->s_id, function, error_buf); 2881da177e4SLinus Torvalds } 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds enum { 2912a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 2922a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 2932a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 2942a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 2952a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 2962a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 2972a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 2982a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 2992a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3002a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3012a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3022a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3032a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3042a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3052a9807c0SEvgeniy Dushistov Opt_err 3061da177e4SLinus Torvalds }; 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds static match_table_t tokens = { 3091da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3101da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3111da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 312252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3131da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3141da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3151da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3161da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3171da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3181da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3191da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3202a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3211da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3221da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3231da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3241da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3251da177e4SLinus Torvalds {Opt_err, NULL} 3261da177e4SLinus Torvalds }; 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3291da177e4SLinus Torvalds { 3301da177e4SLinus Torvalds char * p; 3311da177e4SLinus Torvalds 332abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3331da177e4SLinus Torvalds 3341da177e4SLinus Torvalds if (!options) 3351da177e4SLinus Torvalds return 1; 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3381da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3391da177e4SLinus Torvalds int token; 3401da177e4SLinus Torvalds if (!*p) 3411da177e4SLinus Torvalds continue; 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds token = match_token(p, tokens, args); 3441da177e4SLinus Torvalds switch (token) { 3451da177e4SLinus Torvalds case Opt_type_old: 3461da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3471da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 3481da177e4SLinus Torvalds break; 3491da177e4SLinus Torvalds case Opt_type_sunx86: 3501da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3511da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 3521da177e4SLinus Torvalds break; 3531da177e4SLinus Torvalds case Opt_type_sun: 3541da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3551da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 3561da177e4SLinus Torvalds break; 357252e211eSMark Fortescue case Opt_type_sunos: 358252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 359252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 360252e211eSMark Fortescue break; 3611da177e4SLinus Torvalds case Opt_type_44bsd: 3621da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3631da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 3641da177e4SLinus Torvalds break; 3651da177e4SLinus Torvalds case Opt_type_ufs2: 3661da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 3671da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 3681da177e4SLinus Torvalds break; 3691da177e4SLinus Torvalds case Opt_type_hp: 3701da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3711da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 3721da177e4SLinus Torvalds break; 3731da177e4SLinus Torvalds case Opt_type_nextstepcd: 3741da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3751da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 3761da177e4SLinus Torvalds break; 3771da177e4SLinus Torvalds case Opt_type_nextstep: 3781da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3791da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 3801da177e4SLinus Torvalds break; 3811da177e4SLinus Torvalds case Opt_type_openstep: 3821da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 3831da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 3841da177e4SLinus Torvalds break; 3851da177e4SLinus Torvalds case Opt_onerror_panic: 3861da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 3871da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 3881da177e4SLinus Torvalds break; 3891da177e4SLinus Torvalds case Opt_onerror_lock: 3901da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 3911da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 3921da177e4SLinus Torvalds break; 3931da177e4SLinus Torvalds case Opt_onerror_umount: 3941da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 3951da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 3961da177e4SLinus Torvalds break; 3971da177e4SLinus Torvalds case Opt_onerror_repair: 3981da177e4SLinus Torvalds printk("UFS-fs: Unable to do repair on error, " 3991da177e4SLinus Torvalds "will lock lock instead\n"); 4001da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4011da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4021da177e4SLinus Torvalds break; 4031da177e4SLinus Torvalds default: 4041da177e4SLinus Torvalds printk("UFS-fs: Invalid option: \"%s\" " 4051da177e4SLinus Torvalds "or missing value\n", p); 4061da177e4SLinus Torvalds return 0; 4071da177e4SLinus Torvalds } 4081da177e4SLinus Torvalds } 4091da177e4SLinus Torvalds return 1; 4101da177e4SLinus Torvalds } 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds /* 413ee3ffd6cSEvgeniy Dushistov * Diffrent types of UFS hold fs_cstotal in different 414ee3ffd6cSEvgeniy Dushistov * places, and use diffrent data structure for it. 415ee3ffd6cSEvgeniy Dushistov * To make things simplier we just copy fs_cstotal to ufs_sb_private_info 416ee3ffd6cSEvgeniy Dushistov */ 417ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 418ee3ffd6cSEvgeniy Dushistov { 419ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 420ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 421ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 422ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 423ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 424ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 425ee3ffd6cSEvgeniy Dushistov 426ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 427ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 428ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 429ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 430ee3ffd6cSEvgeniy Dushistov 431ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 432ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 433ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 434ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 435ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 436ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 437ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 438ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 439ee3ffd6cSEvgeniy Dushistov } else { 440ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 441ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 442ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 443ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 444ee3ffd6cSEvgeniy Dushistov } 445ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 446ee3ffd6cSEvgeniy Dushistov } 447ee3ffd6cSEvgeniy Dushistov 448ee3ffd6cSEvgeniy Dushistov /* 4491da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 4501da177e4SLinus Torvalds */ 451e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 452e295cfcbSEvgeniy Dushistov { 4531da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 454647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 4551da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 4561da177e4SLinus Torvalds unsigned char * base, * space; 4571da177e4SLinus Torvalds unsigned size, blks, i; 458ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 4591da177e4SLinus Torvalds 460abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 4611da177e4SLinus Torvalds 462647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 4631da177e4SLinus Torvalds /* 4641da177e4SLinus Torvalds * Read cs structures from (usually) first data block 4651da177e4SLinus Torvalds * on the device. 4661da177e4SLinus Torvalds */ 4671da177e4SLinus Torvalds size = uspi->s_cssize; 4681da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 4691da177e4SLinus Torvalds base = space = kmalloc(size, GFP_KERNEL); 4701da177e4SLinus Torvalds if (!base) 4711da177e4SLinus Torvalds goto failed; 472e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 4731da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 4741da177e4SLinus Torvalds size = uspi->s_bsize; 4751da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 4761da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 4797b4ee73eSEvgeniy 4801da177e4SLinus Torvalds if (!ubh) 4811da177e4SLinus Torvalds goto failed; 4827b4ee73eSEvgeniy 4831da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 4847b4ee73eSEvgeniy 4851da177e4SLinus Torvalds space += size; 4861da177e4SLinus Torvalds ubh_brelse (ubh); 4871da177e4SLinus Torvalds ubh = NULL; 4881da177e4SLinus Torvalds } 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds /* 4911da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 4921da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 4931da177e4SLinus Torvalds */ 4941da177e4SLinus Torvalds if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) 4951da177e4SLinus Torvalds goto failed; 4961da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 4971da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 4981da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 4991da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5001da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5011da177e4SLinus Torvalds } 5021da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 503abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5041da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5051da177e4SLinus Torvalds goto failed; 5061da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5071da177e4SLinus Torvalds goto failed; 508647b7e87SEvgeniy Dushistov 5091da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5101da177e4SLinus Torvalds } 5111da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5121da177e4SLinus Torvalds if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) 5131da177e4SLinus Torvalds goto failed; 5141da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5151da177e4SLinus Torvalds } 5161da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 517abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5181da177e4SLinus Torvalds return 1; 5191da177e4SLinus Torvalds 5201da177e4SLinus Torvalds failed: 521f99d49adSJesper Juhl kfree (base); 5221da177e4SLinus Torvalds if (sbi->s_ucg) { 5231da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 524f99d49adSJesper Juhl if (sbi->s_ucg[i]) 525f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5261da177e4SLinus Torvalds kfree (sbi->s_ucg); 5271da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 528f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5291da177e4SLinus Torvalds } 530abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5311da177e4SLinus Torvalds return 0; 5321da177e4SLinus Torvalds } 5331da177e4SLinus Torvalds 5341da177e4SLinus Torvalds /* 535ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5361da177e4SLinus Torvalds */ 537ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 538ee3ffd6cSEvgeniy Dushistov { 539ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 540ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 541ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 542ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 543ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 544ee3ffd6cSEvgeniy Dushistov 545ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 546ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 547ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 548ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 549ee3ffd6cSEvgeniy Dushistov 550ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 551ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 552ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 553ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 554ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 555ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 556ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 557ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 558ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 559ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 560ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 561ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 562ee3ffd6cSEvgeniy Dushistov } else { 563ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 564ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 565ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 566ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 567ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 568ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 569ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 570ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 571ee3ffd6cSEvgeniy Dushistov } 572ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 5733313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 574ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 575ee3ffd6cSEvgeniy Dushistov } 576ee3ffd6cSEvgeniy Dushistov 577ee3ffd6cSEvgeniy Dushistov /** 578ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 579ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 580ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 581ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 582ee3ffd6cSEvgeniy Dushistov */ 583ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 584e295cfcbSEvgeniy Dushistov { 5851da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 586ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5871da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5881da177e4SLinus Torvalds unsigned char * base, * space; 5891da177e4SLinus Torvalds unsigned blks, size, i; 5901da177e4SLinus Torvalds 591ee3ffd6cSEvgeniy Dushistov 592abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 593ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 5941da177e4SLinus Torvalds size = uspi->s_cssize; 5951da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 596e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 5971da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5981da177e4SLinus Torvalds size = uspi->s_bsize; 5991da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6001da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6013313e292SEvgeniy Dushistov 6021da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6033313e292SEvgeniy Dushistov 6041da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6051da177e4SLinus Torvalds space += size; 6061da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6071da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6081da177e4SLinus Torvalds ubh_brelse (ubh); 6091da177e4SLinus Torvalds } 6101da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6111da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6121da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6131da177e4SLinus Torvalds } 6141da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6151da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6161da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6171da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6181da177e4SLinus Torvalds kfree (sbi->s_ucg); 6191da177e4SLinus Torvalds kfree (base); 620abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6211da177e4SLinus Torvalds } 6221da177e4SLinus Torvalds 6231da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 6241da177e4SLinus Torvalds { 6251da177e4SLinus Torvalds struct ufs_sb_info * sbi; 6261da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 6271da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 6281da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 6291da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 6301da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6311da177e4SLinus Torvalds struct inode *inode; 6321da177e4SLinus Torvalds unsigned block_size, super_block_size; 6331da177e4SLinus Torvalds unsigned flags; 6347b4ee73eSEvgeniy unsigned super_block_offset; 6351da177e4SLinus Torvalds 6361da177e4SLinus Torvalds uspi = NULL; 6371da177e4SLinus Torvalds ubh = NULL; 6381da177e4SLinus Torvalds flags = 0; 6391da177e4SLinus Torvalds 640abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6411da177e4SLinus Torvalds 642f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 6431da177e4SLinus Torvalds if (!sbi) 6441da177e4SLinus Torvalds goto failed_nomem; 6451da177e4SLinus Torvalds sb->s_fs_info = sbi; 6461da177e4SLinus Torvalds 647abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 6501da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 6511da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 6521da177e4SLinus Torvalds "can't be mounted as read-write\n"); 6531da177e4SLinus Torvalds goto failed; 6541da177e4SLinus Torvalds } 6551da177e4SLinus Torvalds #endif 6561da177e4SLinus Torvalds /* 6571da177e4SLinus Torvalds * Set default mount options 6581da177e4SLinus Torvalds * Parse mount options 6591da177e4SLinus Torvalds */ 6601da177e4SLinus Torvalds sbi->s_mount_opt = 0; 6611da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 6621da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 6631da177e4SLinus Torvalds printk("wrong mount options\n"); 6641da177e4SLinus Torvalds goto failed; 6651da177e4SLinus Torvalds } 6661da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 6671da177e4SLinus Torvalds if (!silent) 6681da177e4SLinus Torvalds printk("You didn't specify the type of your ufs filesystem\n\n" 6691da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 670c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 6711da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 6721da177e4SLinus Torvalds "default is ufstype=old\n"); 6731da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 6741da177e4SLinus Torvalds } 6751da177e4SLinus Torvalds 676252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 677252e211eSMark Fortescue sbi->s_uspi = uspi; 6781da177e4SLinus Torvalds if (!uspi) 6791da177e4SLinus Torvalds goto failed; 680f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 6817b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 6827b4ee73eSEvgeniy 6831da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 6841da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 6851da177e4SLinus Torvalds the rules */ 6861da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 6871da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 688abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 6891da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 6901da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 6911da177e4SLinus Torvalds uspi->s_fshift = 9; 6921da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 6931da177e4SLinus Torvalds uspi->s_sbbase = 0; 6941da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 6951da177e4SLinus Torvalds break; 6961da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 697abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 6987b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 6991da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7001da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7011da177e4SLinus Torvalds uspi->s_fshift = 9; 7021da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7031da177e4SLinus Torvalds uspi->s_sbbase = 0; 7041da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7051da177e4SLinus Torvalds break; 7061da177e4SLinus Torvalds 7071da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 708abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 7091da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7101da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7111da177e4SLinus Torvalds uspi->s_fshift = 10; 7121da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7131da177e4SLinus Torvalds uspi->s_sbbase = 0; 714252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7151da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 7161da177e4SLinus Torvalds break; 7171da177e4SLinus Torvalds 718252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 719252e211eSMark Fortescue UFSD(("ufstype=sunos\n")) 720252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 721252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 722252e211eSMark Fortescue uspi->s_fshift = 10; 723252e211eSMark Fortescue uspi->s_sbsize = 2048; 724252e211eSMark Fortescue super_block_size = 2048; 725252e211eSMark Fortescue uspi->s_sbbase = 0; 726252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 727252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 728252e211eSMark Fortescue break; 729252e211eSMark Fortescue 7301da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 731abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 7321da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7331da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7341da177e4SLinus Torvalds uspi->s_fshift = 10; 7351da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7361da177e4SLinus Torvalds uspi->s_sbbase = 0; 737252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7381da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 7391da177e4SLinus Torvalds break; 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 742abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 7431da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7441da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7451da177e4SLinus Torvalds uspi->s_fshift = 10; 7461da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7471da177e4SLinus Torvalds uspi->s_sbbase = 0; 7481da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7491da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7501da177e4SLinus Torvalds if (!silent) 7511da177e4SLinus Torvalds printk(KERN_INFO "ufstype=old is supported read-only\n"); 7521da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7531da177e4SLinus Torvalds } 7541da177e4SLinus Torvalds break; 7551da177e4SLinus Torvalds 7561da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 757f336953bSEvgeniy Dushistov /*TODO: check may be we need set special dir block size?*/ 758abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 7591da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7601da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7611da177e4SLinus Torvalds uspi->s_fshift = 10; 7621da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7631da177e4SLinus Torvalds uspi->s_sbbase = 0; 7641da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7651da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7661da177e4SLinus Torvalds if (!silent) 7671da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); 7681da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7691da177e4SLinus Torvalds } 7701da177e4SLinus Torvalds break; 7711da177e4SLinus Torvalds 7721da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 773f336953bSEvgeniy Dushistov /*TODO: check may be we need set special dir block size?*/ 774abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 7751da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 7761da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 7771da177e4SLinus Torvalds uspi->s_fshift = 11; 7781da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7791da177e4SLinus Torvalds uspi->s_sbbase = 0; 7801da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 7811da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7821da177e4SLinus Torvalds if (!silent) 7831da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); 7841da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 7851da177e4SLinus Torvalds } 7861da177e4SLinus Torvalds break; 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 789abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 7901da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7911da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7921da177e4SLinus Torvalds uspi->s_fshift = 10; 7931da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7941da177e4SLinus Torvalds uspi->s_sbbase = 0; 795f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 7961da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7971da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7981da177e4SLinus Torvalds if (!silent) 7991da177e4SLinus Torvalds printk(KERN_INFO "ufstype=openstep is supported read-only\n"); 8001da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8011da177e4SLinus Torvalds } 8021da177e4SLinus Torvalds break; 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 805abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 8061da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8071da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8081da177e4SLinus Torvalds uspi->s_fshift = 10; 8091da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8101da177e4SLinus Torvalds uspi->s_sbbase = 0; 8111da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8121da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8131da177e4SLinus Torvalds if (!silent) 8141da177e4SLinus Torvalds printk(KERN_INFO "ufstype=hp is supported read-only\n"); 8151da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds break; 8181da177e4SLinus Torvalds default: 8191da177e4SLinus Torvalds if (!silent) 8201da177e4SLinus Torvalds printk("unknown ufstype\n"); 8211da177e4SLinus Torvalds goto failed; 8221da177e4SLinus Torvalds } 8231da177e4SLinus Torvalds 8241da177e4SLinus Torvalds again: 8251da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 8261da177e4SLinus Torvalds printk(KERN_ERR "UFS: failed to set blocksize\n"); 8271da177e4SLinus Torvalds goto failed; 8281da177e4SLinus Torvalds } 8291da177e4SLinus Torvalds 8301da177e4SLinus Torvalds /* 8311da177e4SLinus Torvalds * read ufs super block from device 8321da177e4SLinus Torvalds */ 8337b4ee73eSEvgeniy 8347b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 8357b4ee73eSEvgeniy 8361da177e4SLinus Torvalds if (!ubh) 8371da177e4SLinus Torvalds goto failed; 8381da177e4SLinus Torvalds 8397b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 8407b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 8417b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 8421da177e4SLinus Torvalds 843252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 844252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 845252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 846252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 847252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 848252e211eSMark Fortescue flags |= UFS_ST_SUN; 849252e211eSMark Fortescue } 850252e211eSMark Fortescue 8511da177e4SLinus Torvalds /* 8521da177e4SLinus Torvalds * Check ufs magic number 8531da177e4SLinus Torvalds */ 8541da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 8551da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 8561da177e4SLinus Torvalds case UFS_MAGIC: 8571da177e4SLinus Torvalds case UFS2_MAGIC: 8581da177e4SLinus Torvalds case UFS_MAGIC_LFN: 8591da177e4SLinus Torvalds case UFS_MAGIC_FEA: 8601da177e4SLinus Torvalds case UFS_MAGIC_4GB: 8611da177e4SLinus Torvalds goto magic_found; 8621da177e4SLinus Torvalds } 8631da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 8641da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 8651da177e4SLinus Torvalds case UFS_MAGIC: 8661da177e4SLinus Torvalds case UFS2_MAGIC: 8671da177e4SLinus Torvalds case UFS_MAGIC_LFN: 8681da177e4SLinus Torvalds case UFS_MAGIC_FEA: 8691da177e4SLinus Torvalds case UFS_MAGIC_4GB: 8701da177e4SLinus Torvalds goto magic_found; 8711da177e4SLinus Torvalds } 8721da177e4SLinus Torvalds 8731da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 8741da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 8751da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 8761da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 8771da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 8781da177e4SLinus Torvalds ubh = NULL; 8791da177e4SLinus Torvalds uspi->s_sbbase += 8; 8801da177e4SLinus Torvalds goto again; 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds if (!silent) 8831da177e4SLinus Torvalds printk("ufs_read_super: bad magic number\n"); 8841da177e4SLinus Torvalds goto failed; 8851da177e4SLinus Torvalds 8861da177e4SLinus Torvalds magic_found: 8871da177e4SLinus Torvalds /* 8881da177e4SLinus Torvalds * Check block and fragment sizes 8891da177e4SLinus Torvalds */ 8901da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 8911da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 8921da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 8931da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 8941da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 8951da177e4SLinus Torvalds 8969e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 8971da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 8981da177e4SLinus Torvalds uspi->s_fsize); 8991da177e4SLinus Torvalds goto failed; 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 9021da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", 9031da177e4SLinus Torvalds uspi->s_fsize); 9041da177e4SLinus Torvalds goto failed; 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 9071da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", 9081da177e4SLinus Torvalds uspi->s_fsize); 9091da177e4SLinus Torvalds goto failed; 9101da177e4SLinus Torvalds } 9119e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 9121da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 9131da177e4SLinus Torvalds uspi->s_bsize); 9141da177e4SLinus Torvalds goto failed; 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 9171da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is too small\n", 9181da177e4SLinus Torvalds uspi->s_bsize); 9191da177e4SLinus Torvalds goto failed; 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 9221da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", 9231da177e4SLinus Torvalds uspi->s_bsize / uspi->s_fsize); 9241da177e4SLinus Torvalds goto failed; 9251da177e4SLinus Torvalds } 9261da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 9271da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 9281da177e4SLinus Torvalds ubh = NULL; 9291da177e4SLinus Torvalds block_size = uspi->s_fsize; 9301da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 931abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 9321da177e4SLinus Torvalds goto again; 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds 935f9b7cba1SEvgeniy Dushistov sbi->s_flags = flags;/*after that line some functions use s_flags*/ 9363313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds /* 9391da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 9401da177e4SLinus Torvalds * If not, make it read only. 9411da177e4SLinus Torvalds */ 9421da177e4SLinus Torvalds if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 9431da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 9441da177e4SLinus Torvalds (((flags & UFS_ST_MASK) == UFS_ST_SUN || 945252e211eSMark Fortescue (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 9461da177e4SLinus Torvalds (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 9471da177e4SLinus Torvalds (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 9481da177e4SLinus Torvalds switch(usb1->fs_clean) { 9491da177e4SLinus Torvalds case UFS_FSCLEAN: 950abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 9511da177e4SLinus Torvalds break; 9521da177e4SLinus Torvalds case UFS_FSSTABLE: 953abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 9541da177e4SLinus Torvalds break; 9551da177e4SLinus Torvalds case UFS_FSOSF1: 956abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 9571da177e4SLinus Torvalds break; 9581da177e4SLinus Torvalds case UFS_FSACTIVE: 9591da177e4SLinus Torvalds printk("ufs_read_super: fs is active\n"); 9601da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9611da177e4SLinus Torvalds break; 9621da177e4SLinus Torvalds case UFS_FSBAD: 9631da177e4SLinus Torvalds printk("ufs_read_super: fs is bad\n"); 9641da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9651da177e4SLinus Torvalds break; 9661da177e4SLinus Torvalds default: 9671da177e4SLinus Torvalds printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); 9681da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9691da177e4SLinus Torvalds break; 9701da177e4SLinus Torvalds } 971ee3ffd6cSEvgeniy Dushistov } else { 9721da177e4SLinus Torvalds printk("ufs_read_super: fs needs fsck\n"); 9731da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9741da177e4SLinus Torvalds } 9751da177e4SLinus Torvalds 9761da177e4SLinus Torvalds /* 9771da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 9781da177e4SLinus Torvalds */ 9791da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 9801da177e4SLinus Torvalds sb->dq_op = NULL; /***/ 9811da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 9821da177e4SLinus Torvalds 9831da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 9841da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 9851da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 9861da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 9871da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 9881da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 9891da177e4SLinus Torvalds 9901da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 991647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 992647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 993647b7e87SEvgeniy Dushistov } else { 9941da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 9951da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 9961da177e4SLinus Torvalds } 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 9991da177e4SLinus Torvalds /* s_bsize already set */ 10001da177e4SLinus Torvalds /* s_fsize already set */ 10011da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 10021da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 10031da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 10041da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10051da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 10061da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1007abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1008abf5d15fSEvgeniy Dushistov uspi->s_fshift); 10091da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 10101da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 10111da177e4SLinus Torvalds /* s_sbsize already set */ 10121da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 10131da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 10141da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 10151da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 10161da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 10171da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 10181da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 10191da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 10203313e292SEvgeniy Dushistov 10213313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 10223313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 10233313e292SEvgeniy Dushistov else 10241da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 10253313e292SEvgeniy Dushistov 10261da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 10271da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 10281da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 10291da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 10301da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 10311da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 10321da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1033647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1034647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 10351da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 10361da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 10371da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 10381da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 10391da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds /* 10421da177e4SLinus Torvalds * Compute another frequently used values 10431da177e4SLinus Torvalds */ 10441da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1045abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 10461da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1047abf5d15fSEvgeniy Dushistov else 10481da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1049abf5d15fSEvgeniy Dushistov 10501da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 10511da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 10521da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 10531da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 10541da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 10551da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 10561da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 10571da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 10581da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 10591da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 10601da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 10611da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 10621da177e4SLinus Torvalds if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == 10631da177e4SLinus Torvalds UFS_MOUNT_UFSTYPE_44BSD) 10641da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1065647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 10661da177e4SLinus Torvalds 10671da177e4SLinus Torvalds inode = iget(sb, UFS_ROOTINO); 10681da177e4SLinus Torvalds if (!inode || is_bad_inode(inode)) 10691da177e4SLinus Torvalds goto failed; 10701da177e4SLinus Torvalds sb->s_root = d_alloc_root(inode); 10711da177e4SLinus Torvalds if (!sb->s_root) 10721da177e4SLinus Torvalds goto dalloc_failed; 10731da177e4SLinus Torvalds 1074ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 10751da177e4SLinus Torvalds /* 10761da177e4SLinus Torvalds * Read cylinder group structures 10771da177e4SLinus Torvalds */ 10781da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 10791da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 10801da177e4SLinus Torvalds goto failed; 10811da177e4SLinus Torvalds 1082abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 10831da177e4SLinus Torvalds return 0; 10841da177e4SLinus Torvalds 10851da177e4SLinus Torvalds dalloc_failed: 10861da177e4SLinus Torvalds iput(inode); 10871da177e4SLinus Torvalds failed: 1088f99d49adSJesper Juhl if (ubh) 1089f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1090f99d49adSJesper Juhl kfree (uspi); 1091f99d49adSJesper Juhl kfree(sbi); 10921da177e4SLinus Torvalds sb->s_fs_info = NULL; 1093abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 10941da177e4SLinus Torvalds return -EINVAL; 10951da177e4SLinus Torvalds 10961da177e4SLinus Torvalds failed_nomem: 1097abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 10981da177e4SLinus Torvalds return -ENOMEM; 10991da177e4SLinus Torvalds } 11001da177e4SLinus Torvalds 1101647b7e87SEvgeniy Dushistov static void ufs_write_super(struct super_block *sb) 1102647b7e87SEvgeniy Dushistov { 11031da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 11041da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 11051da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 11061da177e4SLinus Torvalds unsigned flags; 11071da177e4SLinus Torvalds 11081da177e4SLinus Torvalds lock_kernel(); 1109abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 11101da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 11111da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 11127b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 11137b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 11141da177e4SLinus Torvalds 11151da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 11161da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 11171da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1118252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 11191da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 11201da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 11211da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 1122ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 11231da177e4SLinus Torvalds } 11241da177e4SLinus Torvalds sb->s_dirt = 0; 1125abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11261da177e4SLinus Torvalds unlock_kernel(); 11271da177e4SLinus Torvalds } 11281da177e4SLinus Torvalds 11291da177e4SLinus Torvalds static void ufs_put_super(struct super_block *sb) 11301da177e4SLinus Torvalds { 11311da177e4SLinus Torvalds struct ufs_sb_info * sbi = UFS_SB(sb); 11321da177e4SLinus Torvalds 1133abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 11341da177e4SLinus Torvalds 11351da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 1136ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds ubh_brelse_uspi (sbi->s_uspi); 11391da177e4SLinus Torvalds kfree (sbi->s_uspi); 11401da177e4SLinus Torvalds kfree (sbi); 11411da177e4SLinus Torvalds sb->s_fs_info = NULL; 1142abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11431da177e4SLinus Torvalds return; 11441da177e4SLinus Torvalds } 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 11481da177e4SLinus Torvalds { 11491da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 11501da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 11511da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 11521da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 11531da177e4SLinus Torvalds unsigned flags; 11541da177e4SLinus Torvalds 11551da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 11561da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 11577b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 11587b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds /* 11611da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 11621da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 11631da177e4SLinus Torvalds */ 11641da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 11651da177e4SLinus Torvalds new_mount_opt = 0; 11661da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 11671da177e4SLinus Torvalds if (!ufs_parse_options (data, &new_mount_opt)) 11681da177e4SLinus Torvalds return -EINVAL; 11691da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 11701da177e4SLinus Torvalds new_mount_opt |= ufstype; 1171ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 11721da177e4SLinus Torvalds printk("ufstype can't be changed during remount\n"); 11731da177e4SLinus Torvalds return -EINVAL; 11741da177e4SLinus Torvalds } 11751da177e4SLinus Torvalds 11761da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 11771da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 11781da177e4SLinus Torvalds return 0; 11791da177e4SLinus Torvalds } 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds /* 11821da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 11831da177e4SLinus Torvalds */ 11841da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1185ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 11861da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 11871da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1188252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 11891da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 11901da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 11911da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 11929695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 11931da177e4SLinus Torvalds sb->s_dirt = 0; 11941da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1195ee3ffd6cSEvgeniy Dushistov } else { 11961da177e4SLinus Torvalds /* 11971da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 11981da177e4SLinus Torvalds */ 11991da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 12001da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 12011da177e4SLinus Torvalds "can't be mounted as read-write\n"); 12021da177e4SLinus Torvalds return -EINVAL; 12031da177e4SLinus Torvalds #else 12041da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1205252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 12061da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1207cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1208cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 12091da177e4SLinus Torvalds printk("this ufstype is read-only supported\n"); 12101da177e4SLinus Torvalds return -EINVAL; 12111da177e4SLinus Torvalds } 12121da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 12131da177e4SLinus Torvalds printk("failed during remounting\n"); 12141da177e4SLinus Torvalds return -EPERM; 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 12171da177e4SLinus Torvalds #endif 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 12201da177e4SLinus Torvalds return 0; 12211da177e4SLinus Torvalds } 12221da177e4SLinus Torvalds 12232a9807c0SEvgeniy Dushistov static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs) 12242a9807c0SEvgeniy Dushistov { 12252a9807c0SEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb); 12262a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 12272a9807c0SEvgeniy Dushistov struct match_token *tp = tokens; 12282a9807c0SEvgeniy Dushistov 12292a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 12302a9807c0SEvgeniy Dushistov ++tp; 12312a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 12322a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 12332a9807c0SEvgeniy Dushistov 12342a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 12352a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 12362a9807c0SEvgeniy Dushistov ++tp; 12372a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 12382a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 12392a9807c0SEvgeniy Dushistov 12402a9807c0SEvgeniy Dushistov return 0; 12412a9807c0SEvgeniy Dushistov } 12422a9807c0SEvgeniy Dushistov 1243726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 12441da177e4SLinus Torvalds { 1245726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1246647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1247647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 12481da177e4SLinus Torvalds struct ufs_super_block_first *usb1; 1249647b7e87SEvgeniy Dushistov struct ufs_super_block_second *usb2; 1250647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 12511da177e4SLinus Torvalds 12521da177e4SLinus Torvalds lock_kernel(); 12531da177e4SLinus Torvalds 12547b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 1255647b7e87SEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 1256647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 12571da177e4SLinus Torvalds 12581da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 12591da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1260647b7e87SEvgeniy Dushistov buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1261647b7e87SEvgeniy Dushistov } else { 12621da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 12631da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 12641da177e4SLinus Torvalds } 1265ee3ffd6cSEvgeniy Dushistov buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + 1266ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree; 1267ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 12681da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 12691da177e4SLinus Torvalds buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) 12701da177e4SLinus Torvalds ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; 12711da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 12721da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 12731da177e4SLinus Torvalds 12741da177e4SLinus Torvalds unlock_kernel(); 12751da177e4SLinus Torvalds 12761da177e4SLinus Torvalds return 0; 12771da177e4SLinus Torvalds } 12781da177e4SLinus Torvalds 1279e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 12801da177e4SLinus Torvalds 12811da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 12821da177e4SLinus Torvalds { 12831da177e4SLinus Torvalds struct ufs_inode_info *ei; 1284e94b1766SChristoph Lameter ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_KERNEL); 12851da177e4SLinus Torvalds if (!ei) 12861da177e4SLinus Torvalds return NULL; 12871da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 12881da177e4SLinus Torvalds return &ei->vfs_inode; 12891da177e4SLinus Torvalds } 12901da177e4SLinus Torvalds 12911da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 12921da177e4SLinus Torvalds { 12931da177e4SLinus Torvalds kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 12941da177e4SLinus Torvalds } 12951da177e4SLinus Torvalds 12964ba9b9d0SChristoph Lameter static void init_once(struct kmem_cache * cachep, void *foo) 12971da177e4SLinus Torvalds { 12981da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 12991da177e4SLinus Torvalds 13001da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds 13031da177e4SLinus Torvalds static int init_inodecache(void) 13041da177e4SLinus Torvalds { 13051da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 13061da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1307fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 1308fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 130920c2df83SPaul Mundt init_once); 13101da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 13111da177e4SLinus Torvalds return -ENOMEM; 13121da177e4SLinus Torvalds return 0; 13131da177e4SLinus Torvalds } 13141da177e4SLinus Torvalds 13151da177e4SLinus Torvalds static void destroy_inodecache(void) 13161da177e4SLinus Torvalds { 13171a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 13181da177e4SLinus Torvalds } 13191da177e4SLinus Torvalds 13201da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 13211da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t); 13221da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t); 13231da177e4SLinus Torvalds #endif 13241da177e4SLinus Torvalds 1325ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 13261da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 13271da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 13281da177e4SLinus Torvalds .read_inode = ufs_read_inode, 13291da177e4SLinus Torvalds .write_inode = ufs_write_inode, 13301da177e4SLinus Torvalds .delete_inode = ufs_delete_inode, 13311da177e4SLinus Torvalds .put_super = ufs_put_super, 13321da177e4SLinus Torvalds .write_super = ufs_write_super, 13331da177e4SLinus Torvalds .statfs = ufs_statfs, 13341da177e4SLinus Torvalds .remount_fs = ufs_remount, 13352a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 13361da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 13371da177e4SLinus Torvalds .quota_read = ufs_quota_read, 13381da177e4SLinus Torvalds .quota_write = ufs_quota_write, 13391da177e4SLinus Torvalds #endif 13401da177e4SLinus Torvalds }; 13411da177e4SLinus Torvalds 13421da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 13431da177e4SLinus Torvalds 13441da177e4SLinus Torvalds /* Read data from quotafile - avoid pagecache and such because we cannot afford 13451da177e4SLinus Torvalds * acquiring the locks... As quota files are never truncated and quota code 13461da177e4SLinus Torvalds * itself serializes the operations (and noone else should touch the files) 13471da177e4SLinus Torvalds * we don't have to be afraid of races */ 13481da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data, 13491da177e4SLinus Torvalds size_t len, loff_t off) 13501da177e4SLinus Torvalds { 13511da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 13521da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 13531da177e4SLinus Torvalds int err = 0; 13541da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 13551da177e4SLinus Torvalds int tocopy; 13561da177e4SLinus Torvalds size_t toread; 13571da177e4SLinus Torvalds struct buffer_head *bh; 13581da177e4SLinus Torvalds loff_t i_size = i_size_read(inode); 13591da177e4SLinus Torvalds 13601da177e4SLinus Torvalds if (off > i_size) 13611da177e4SLinus Torvalds return 0; 13621da177e4SLinus Torvalds if (off+len > i_size) 13631da177e4SLinus Torvalds len = i_size-off; 13641da177e4SLinus Torvalds toread = len; 13651da177e4SLinus Torvalds while (toread > 0) { 13661da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < toread ? 13671da177e4SLinus Torvalds sb->s_blocksize - offset : toread; 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 0, &err); 13701da177e4SLinus Torvalds if (err) 13711da177e4SLinus Torvalds return err; 13721da177e4SLinus Torvalds if (!bh) /* A hole? */ 13731da177e4SLinus Torvalds memset(data, 0, tocopy); 13741da177e4SLinus Torvalds else { 13751da177e4SLinus Torvalds memcpy(data, bh->b_data+offset, tocopy); 13761da177e4SLinus Torvalds brelse(bh); 13771da177e4SLinus Torvalds } 13781da177e4SLinus Torvalds offset = 0; 13791da177e4SLinus Torvalds toread -= tocopy; 13801da177e4SLinus Torvalds data += tocopy; 13811da177e4SLinus Torvalds blk++; 13821da177e4SLinus Torvalds } 13831da177e4SLinus Torvalds return len; 13841da177e4SLinus Torvalds } 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds /* Write to quotafile */ 13871da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *sb, int type, 13881da177e4SLinus Torvalds const char *data, size_t len, loff_t off) 13891da177e4SLinus Torvalds { 13901da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 13911da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 13921da177e4SLinus Torvalds int err = 0; 13931da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 13941da177e4SLinus Torvalds int tocopy; 13951da177e4SLinus Torvalds size_t towrite = len; 13961da177e4SLinus Torvalds struct buffer_head *bh; 13971da177e4SLinus Torvalds 13985c81a419SArjan van de Ven mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); 13991da177e4SLinus Torvalds while (towrite > 0) { 14001da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < towrite ? 14011da177e4SLinus Torvalds sb->s_blocksize - offset : towrite; 14021da177e4SLinus Torvalds 14031da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 1, &err); 14041da177e4SLinus Torvalds if (!bh) 14051da177e4SLinus Torvalds goto out; 14061da177e4SLinus Torvalds lock_buffer(bh); 14071da177e4SLinus Torvalds memcpy(bh->b_data+offset, data, tocopy); 14081da177e4SLinus Torvalds flush_dcache_page(bh->b_page); 14091da177e4SLinus Torvalds set_buffer_uptodate(bh); 14101da177e4SLinus Torvalds mark_buffer_dirty(bh); 14111da177e4SLinus Torvalds unlock_buffer(bh); 14121da177e4SLinus Torvalds brelse(bh); 14131da177e4SLinus Torvalds offset = 0; 14141da177e4SLinus Torvalds towrite -= tocopy; 14151da177e4SLinus Torvalds data += tocopy; 14161da177e4SLinus Torvalds blk++; 14171da177e4SLinus Torvalds } 14181da177e4SLinus Torvalds out: 141915b2fe39SEvgeniy Polyakov if (len == towrite) { 14201b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 14211da177e4SLinus Torvalds return err; 142215b2fe39SEvgeniy Polyakov } 14231da177e4SLinus Torvalds if (inode->i_size < off+len-towrite) 14241da177e4SLinus Torvalds i_size_write(inode, off+len-towrite); 14251da177e4SLinus Torvalds inode->i_version++; 14261da177e4SLinus Torvalds inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; 14271da177e4SLinus Torvalds mark_inode_dirty(inode); 14281b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 14291da177e4SLinus Torvalds return len - towrite; 14301da177e4SLinus Torvalds } 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds #endif 14331da177e4SLinus Torvalds 1434454e2398SDavid Howells static int ufs_get_sb(struct file_system_type *fs_type, 1435454e2398SDavid Howells int flags, const char *dev_name, void *data, struct vfsmount *mnt) 14361da177e4SLinus Torvalds { 1437454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); 14381da177e4SLinus Torvalds } 14391da177e4SLinus Torvalds 14401da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 14411da177e4SLinus Torvalds .owner = THIS_MODULE, 14421da177e4SLinus Torvalds .name = "ufs", 14431da177e4SLinus Torvalds .get_sb = ufs_get_sb, 14441da177e4SLinus Torvalds .kill_sb = kill_block_super, 14451da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 14461da177e4SLinus Torvalds }; 14471da177e4SLinus Torvalds 14481da177e4SLinus Torvalds static int __init init_ufs_fs(void) 14491da177e4SLinus Torvalds { 14501da177e4SLinus Torvalds int err = init_inodecache(); 14511da177e4SLinus Torvalds if (err) 14521da177e4SLinus Torvalds goto out1; 14531da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 14541da177e4SLinus Torvalds if (err) 14551da177e4SLinus Torvalds goto out; 14561da177e4SLinus Torvalds return 0; 14571da177e4SLinus Torvalds out: 14581da177e4SLinus Torvalds destroy_inodecache(); 14591da177e4SLinus Torvalds out1: 14601da177e4SLinus Torvalds return err; 14611da177e4SLinus Torvalds } 14621da177e4SLinus Torvalds 14631da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 14641da177e4SLinus Torvalds { 14651da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 14661da177e4SLinus Torvalds destroy_inodecache(); 14671da177e4SLinus Torvalds } 14681da177e4SLinus Torvalds 14691da177e4SLinus Torvalds module_init(init_ufs_fs) 14701da177e4SLinus Torvalds module_exit(exit_ufs_fs) 14711da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1472