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 69f3e2a520SAlexey Dobriyan #include <linux/exportfs.h> 701da177e4SLinus Torvalds #include <linux/module.h> 711da177e4SLinus Torvalds #include <linux/bitops.h> 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds #include <stdarg.h> 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds #include <asm/uaccess.h> 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds #include <linux/errno.h> 781da177e4SLinus Torvalds #include <linux/fs.h> 791da177e4SLinus Torvalds #include <linux/slab.h> 801da177e4SLinus Torvalds #include <linux/time.h> 811da177e4SLinus Torvalds #include <linux/stat.h> 821da177e4SLinus Torvalds #include <linux/string.h> 831da177e4SLinus Torvalds #include <linux/blkdev.h> 841da177e4SLinus Torvalds #include <linux/init.h> 851da177e4SLinus Torvalds #include <linux/parser.h> 861da177e4SLinus Torvalds #include <linux/buffer_head.h> 871da177e4SLinus Torvalds #include <linux/vfs.h> 889e8c4273Svignesh babu #include <linux/log2.h> 892a9807c0SEvgeniy Dushistov #include <linux/mount.h> 902a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 911da177e4SLinus Torvalds 92e5420598SMike Frysinger #include "ufs_fs.h" 93bcd6d4ecSChristoph Hellwig #include "ufs.h" 941da177e4SLinus Torvalds #include "swab.h" 951da177e4SLinus Torvalds #include "util.h" 961da177e4SLinus Torvalds 97788257d6SArnd Bergmann void lock_ufs(struct super_block *sb) 98788257d6SArnd Bergmann { 99788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 100788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 101788257d6SArnd Bergmann 102788257d6SArnd Bergmann mutex_lock(&sbi->mutex); 103788257d6SArnd Bergmann sbi->mutex_owner = current; 104788257d6SArnd Bergmann #endif 105788257d6SArnd Bergmann } 106788257d6SArnd Bergmann 107788257d6SArnd Bergmann void unlock_ufs(struct super_block *sb) 108788257d6SArnd Bergmann { 109788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 110788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 111788257d6SArnd Bergmann 112788257d6SArnd Bergmann sbi->mutex_owner = NULL; 113788257d6SArnd Bergmann mutex_unlock(&sbi->mutex); 114788257d6SArnd Bergmann #endif 115788257d6SArnd Bergmann } 116788257d6SArnd Bergmann 117f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 118f3e2a520SAlexey Dobriyan { 119f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 120f3e2a520SAlexey Dobriyan struct inode *inode; 121f3e2a520SAlexey Dobriyan 122f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 123f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 124f3e2a520SAlexey Dobriyan 125f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 126f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 127f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 128f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 129f3e2a520SAlexey Dobriyan iput(inode); 130f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 131f3e2a520SAlexey Dobriyan } 132f3e2a520SAlexey Dobriyan return inode; 133f3e2a520SAlexey Dobriyan } 134f3e2a520SAlexey Dobriyan 135f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 136f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 137f3e2a520SAlexey Dobriyan { 138f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 139f3e2a520SAlexey Dobriyan } 140f3e2a520SAlexey Dobriyan 141f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 142f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 143f3e2a520SAlexey Dobriyan { 144f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 145f3e2a520SAlexey Dobriyan } 146f3e2a520SAlexey Dobriyan 147f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 148f3e2a520SAlexey Dobriyan { 14926fe5750SLinus Torvalds struct qstr dot_dot = QSTR_INIT("..", 2); 150f3e2a520SAlexey Dobriyan ino_t ino; 151f3e2a520SAlexey Dobriyan 152f3e2a520SAlexey Dobriyan ino = ufs_inode_by_name(child->d_inode, &dot_dot); 153f3e2a520SAlexey Dobriyan if (!ino) 154f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 155f3e2a520SAlexey Dobriyan return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); 156f3e2a520SAlexey Dobriyan } 157f3e2a520SAlexey Dobriyan 158f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 159f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 160f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 161f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 162f3e2a520SAlexey Dobriyan }; 163f3e2a520SAlexey Dobriyan 164abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1651da177e4SLinus Torvalds /* 1661da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1671da177e4SLinus Torvalds */ 1683313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1691da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1701da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1711da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1721da177e4SLinus Torvalds { 1733313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1743313e292SEvgeniy Dushistov 1751da177e4SLinus Torvalds printk("ufs_print_super_stuff\n"); 1763313e292SEvgeniy Dushistov printk(" magic: 0x%x\n", magic); 1773313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 178647b7e87SEvgeniy Dushistov printk(" fs_size: %llu\n", (unsigned long long) 179647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 180647b7e87SEvgeniy Dushistov printk(" fs_dsize: %llu\n", (unsigned long long) 181647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 182647b7e87SEvgeniy Dushistov printk(" bsize: %u\n", 183647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 184647b7e87SEvgeniy Dushistov printk(" fsize: %u\n", 185647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 186647b7e87SEvgeniy Dushistov printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 187647b7e87SEvgeniy Dushistov printk(" fs_sblockloc: %llu\n", (unsigned long long) 188647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 189647b7e87SEvgeniy Dushistov printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 190647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 191647b7e87SEvgeniy Dushistov printk(" cs_nbfree(No of free blocks): %llu\n", 192647b7e87SEvgeniy Dushistov (unsigned long long) 193647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 1943313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", 1953313e292SEvgeniy Dushistov (unsigned long long) 1963313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 1973313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", 1983313e292SEvgeniy Dushistov (unsigned long long) 1993313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 20090b315afSEvgeniy Dushistov printk(KERN_INFO" fs_maxsymlinklen: %u\n", 20190b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 202647b7e87SEvgeniy Dushistov } else { 2031da177e4SLinus Torvalds printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 2041da177e4SLinus Torvalds printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 2051da177e4SLinus Torvalds printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 2061da177e4SLinus Torvalds printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 207647b7e87SEvgeniy Dushistov printk(" cgoffset: %u\n", 208647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 209647b7e87SEvgeniy Dushistov printk(" ~cgmask: 0x%x\n", 210647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 2111da177e4SLinus Torvalds printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 2121da177e4SLinus Torvalds printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 2131da177e4SLinus Torvalds printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 2141da177e4SLinus Torvalds printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 2151da177e4SLinus Torvalds printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 2161da177e4SLinus Torvalds printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 217647b7e87SEvgeniy Dushistov printk(" fragshift: %u\n", 218647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 2191da177e4SLinus Torvalds printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 2201da177e4SLinus Torvalds printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 2211da177e4SLinus Torvalds printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 2221da177e4SLinus Torvalds printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 2231da177e4SLinus Torvalds printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 2241da177e4SLinus Torvalds printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 2251da177e4SLinus Torvalds printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 2261da177e4SLinus Torvalds printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 2271da177e4SLinus Torvalds printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 2281da177e4SLinus Torvalds printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 229647b7e87SEvgeniy Dushistov printk(" fstodb: %u\n", 230647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 2311da177e4SLinus Torvalds printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 232647b7e87SEvgeniy Dushistov printk(" ndir %u\n", 233647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 234647b7e87SEvgeniy Dushistov printk(" nifree %u\n", 235647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 236647b7e87SEvgeniy Dushistov printk(" nbfree %u\n", 237647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 238647b7e87SEvgeniy Dushistov printk(" nffree %u\n", 239647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2401da177e4SLinus Torvalds } 2411da177e4SLinus Torvalds printk("\n"); 2421da177e4SLinus Torvalds } 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds /* 2451da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2461da177e4SLinus Torvalds */ 247647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 248647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2491da177e4SLinus Torvalds { 2501da177e4SLinus Torvalds printk("\nufs_print_cylinder_stuff\n"); 25196710b29SAndrew Morton printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 2521da177e4SLinus Torvalds printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 2531da177e4SLinus Torvalds printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 2541da177e4SLinus Torvalds printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 2551da177e4SLinus Torvalds printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 2561da177e4SLinus Torvalds printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 2571da177e4SLinus Torvalds printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 2581da177e4SLinus Torvalds printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 2591da177e4SLinus Torvalds printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 2601da177e4SLinus Torvalds printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 2611da177e4SLinus Torvalds printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 2621da177e4SLinus Torvalds printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 2631da177e4SLinus Torvalds printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 2641da177e4SLinus Torvalds printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 2651da177e4SLinus Torvalds printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2661da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2671da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2681da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2691da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 2701da177e4SLinus Torvalds printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 2711da177e4SLinus Torvalds printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 2721da177e4SLinus Torvalds printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 2731da177e4SLinus Torvalds printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 2741da177e4SLinus Torvalds printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 275647b7e87SEvgeniy Dushistov printk(" clustersumoff %u\n", 276647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 277647b7e87SEvgeniy Dushistov printk(" clusteroff %u\n", 278647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 279647b7e87SEvgeniy Dushistov printk(" nclusterblks %u\n", 280647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 2811da177e4SLinus Torvalds printk("\n"); 2821da177e4SLinus Torvalds } 283647b7e87SEvgeniy Dushistov #else 2843313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 285647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 286abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2871da177e4SLinus Torvalds 288ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds static char error_buf[1024]; 2911da177e4SLinus Torvalds 2921da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2931da177e4SLinus Torvalds const char * fmt, ...) 2941da177e4SLinus Torvalds { 2951da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2961da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2971da177e4SLinus Torvalds va_list args; 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3007b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3031da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3049695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3059e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3061da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3071da177e4SLinus Torvalds } 3081da177e4SLinus Torvalds va_start (args, fmt); 3094a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3101da177e4SLinus Torvalds va_end (args); 3111da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 3121da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 3131da177e4SLinus Torvalds panic ("UFS-fs panic (device %s): %s: %s\n", 3141da177e4SLinus Torvalds sb->s_id, function, error_buf); 3151da177e4SLinus Torvalds 3161da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 3171da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 3181da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 3191da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", 3201da177e4SLinus Torvalds sb->s_id, function, error_buf); 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds } 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3251da177e4SLinus Torvalds const char * fmt, ...) 3261da177e4SLinus Torvalds { 3271da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3281da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3291da177e4SLinus Torvalds va_list args; 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3327b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3331da177e4SLinus Torvalds 3341da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3351da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3369695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3379e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3381da177e4SLinus Torvalds } 3391da177e4SLinus Torvalds va_start (args, fmt); 3404a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3411da177e4SLinus Torvalds va_end (args); 3421da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3431da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", 3441da177e4SLinus Torvalds sb->s_id, function, error_buf); 3451da177e4SLinus Torvalds } 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3481da177e4SLinus Torvalds const char * fmt, ...) 3491da177e4SLinus Torvalds { 3501da177e4SLinus Torvalds va_list args; 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds va_start (args, fmt); 3534a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3541da177e4SLinus Torvalds va_end (args); 3551da177e4SLinus Torvalds printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", 3561da177e4SLinus Torvalds sb->s_id, function, error_buf); 3571da177e4SLinus Torvalds } 3581da177e4SLinus Torvalds 3591da177e4SLinus Torvalds enum { 3602a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3612a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3622a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3632a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3642a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3652a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3662a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3672a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3682a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3692a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3702a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3712a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3722a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3732a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3742a9807c0SEvgeniy Dushistov Opt_err 3751da177e4SLinus Torvalds }; 3761da177e4SLinus Torvalds 377a447c093SSteven Whitehouse static const match_table_t tokens = { 3781da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3791da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3801da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 381252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3821da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3831da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3841da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3851da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3861da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3871da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3881da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3892a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3901da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3911da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3921da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3931da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3941da177e4SLinus Torvalds {Opt_err, NULL} 3951da177e4SLinus Torvalds }; 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3981da177e4SLinus Torvalds { 3991da177e4SLinus Torvalds char * p; 4001da177e4SLinus Torvalds 401abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 4021da177e4SLinus Torvalds 4031da177e4SLinus Torvalds if (!options) 4041da177e4SLinus Torvalds return 1; 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 4071da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 4081da177e4SLinus Torvalds int token; 4091da177e4SLinus Torvalds if (!*p) 4101da177e4SLinus Torvalds continue; 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds token = match_token(p, tokens, args); 4131da177e4SLinus Torvalds switch (token) { 4141da177e4SLinus Torvalds case Opt_type_old: 4151da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4161da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4171da177e4SLinus Torvalds break; 4181da177e4SLinus Torvalds case Opt_type_sunx86: 4191da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4201da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4211da177e4SLinus Torvalds break; 4221da177e4SLinus Torvalds case Opt_type_sun: 4231da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4241da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4251da177e4SLinus Torvalds break; 426252e211eSMark Fortescue case Opt_type_sunos: 427252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 428252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 429252e211eSMark Fortescue break; 4301da177e4SLinus Torvalds case Opt_type_44bsd: 4311da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4321da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4331da177e4SLinus Torvalds break; 4341da177e4SLinus Torvalds case Opt_type_ufs2: 4351da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4361da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4371da177e4SLinus Torvalds break; 4381da177e4SLinus Torvalds case Opt_type_hp: 4391da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4401da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4411da177e4SLinus Torvalds break; 4421da177e4SLinus Torvalds case Opt_type_nextstepcd: 4431da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4441da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4451da177e4SLinus Torvalds break; 4461da177e4SLinus Torvalds case Opt_type_nextstep: 4471da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4481da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4491da177e4SLinus Torvalds break; 4501da177e4SLinus Torvalds case Opt_type_openstep: 4511da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4521da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4531da177e4SLinus Torvalds break; 4541da177e4SLinus Torvalds case Opt_onerror_panic: 4551da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4561da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4571da177e4SLinus Torvalds break; 4581da177e4SLinus Torvalds case Opt_onerror_lock: 4591da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4601da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4611da177e4SLinus Torvalds break; 4621da177e4SLinus Torvalds case Opt_onerror_umount: 4631da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4641da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4651da177e4SLinus Torvalds break; 4661da177e4SLinus Torvalds case Opt_onerror_repair: 4671da177e4SLinus Torvalds printk("UFS-fs: Unable to do repair on error, " 4681da177e4SLinus Torvalds "will lock lock instead\n"); 4691da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4701da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4711da177e4SLinus Torvalds break; 4721da177e4SLinus Torvalds default: 4731da177e4SLinus Torvalds printk("UFS-fs: Invalid option: \"%s\" " 4741da177e4SLinus Torvalds "or missing value\n", p); 4751da177e4SLinus Torvalds return 0; 4761da177e4SLinus Torvalds } 4771da177e4SLinus Torvalds } 4781da177e4SLinus Torvalds return 1; 4791da177e4SLinus Torvalds } 4801da177e4SLinus Torvalds 4811da177e4SLinus Torvalds /* 48225985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 48325985edcSLucas De Marchi * places, and use different data structure for it. 48425985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 485ee3ffd6cSEvgeniy Dushistov */ 486ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 487ee3ffd6cSEvgeniy Dushistov { 488ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 489ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 490ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 491ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 492ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 493ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 494ee3ffd6cSEvgeniy Dushistov 495ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 496ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 497ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 498ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 499ee3ffd6cSEvgeniy Dushistov 500ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 501ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 502ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 503ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 504ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 505ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 506ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 507ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 508ee3ffd6cSEvgeniy Dushistov } else { 509ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 510ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 511ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 512ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 513ee3ffd6cSEvgeniy Dushistov } 514ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 515ee3ffd6cSEvgeniy Dushistov } 516ee3ffd6cSEvgeniy Dushistov 517ee3ffd6cSEvgeniy Dushistov /* 5181da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5191da177e4SLinus Torvalds */ 520e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 521e295cfcbSEvgeniy Dushistov { 5221da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 523647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5241da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5251da177e4SLinus Torvalds unsigned char * base, * space; 5261da177e4SLinus Torvalds unsigned size, blks, i; 527ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 5281da177e4SLinus Torvalds 529abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5301da177e4SLinus Torvalds 531647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 5321da177e4SLinus Torvalds /* 5331da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5341da177e4SLinus Torvalds * on the device. 5351da177e4SLinus Torvalds */ 5361da177e4SLinus Torvalds size = uspi->s_cssize; 5371da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 538788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5391da177e4SLinus Torvalds if (!base) 5401da177e4SLinus Torvalds goto failed; 541e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5421da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5431da177e4SLinus Torvalds size = uspi->s_bsize; 5441da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5451da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5461da177e4SLinus Torvalds 5471da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5487b4ee73eSEvgeniy 5491da177e4SLinus Torvalds if (!ubh) 5501da177e4SLinus Torvalds goto failed; 5517b4ee73eSEvgeniy 5521da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5537b4ee73eSEvgeniy 5541da177e4SLinus Torvalds space += size; 5551da177e4SLinus Torvalds ubh_brelse (ubh); 5561da177e4SLinus Torvalds ubh = NULL; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds /* 5601da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5611da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5621da177e4SLinus Torvalds */ 563788257d6SArnd Bergmann if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_NOFS))) 5641da177e4SLinus Torvalds goto failed; 5651da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5661da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5671da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5681da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5691da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5701da177e4SLinus Torvalds } 5711da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 572abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5731da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5741da177e4SLinus Torvalds goto failed; 5751da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5761da177e4SLinus Torvalds goto failed; 577647b7e87SEvgeniy Dushistov 5781da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 581788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5821da177e4SLinus Torvalds goto failed; 5831da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5841da177e4SLinus Torvalds } 5851da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 586abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5871da177e4SLinus Torvalds return 1; 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds failed: 590f99d49adSJesper Juhl kfree (base); 5911da177e4SLinus Torvalds if (sbi->s_ucg) { 5921da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 593f99d49adSJesper Juhl if (sbi->s_ucg[i]) 594f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5951da177e4SLinus Torvalds kfree (sbi->s_ucg); 5961da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 597f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5981da177e4SLinus Torvalds } 599abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 6001da177e4SLinus Torvalds return 0; 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds /* 604ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 6051da177e4SLinus Torvalds */ 606ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 607ee3ffd6cSEvgeniy Dushistov { 608ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 609ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 610ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 611ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 612ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 613ee3ffd6cSEvgeniy Dushistov 614ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 615ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 616ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 617ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 618ee3ffd6cSEvgeniy Dushistov 619ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 620ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 621ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 622ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 623ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 624ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 625ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 626ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 627ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 628ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 629ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 630ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 631ee3ffd6cSEvgeniy Dushistov } else { 632ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 633ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 634ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 635ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 636ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 637ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 638ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 639ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 640ee3ffd6cSEvgeniy Dushistov } 641ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6423313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 643ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 644ee3ffd6cSEvgeniy Dushistov } 645ee3ffd6cSEvgeniy Dushistov 646ee3ffd6cSEvgeniy Dushistov /** 647ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 648ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 649ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 650ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 651ee3ffd6cSEvgeniy Dushistov */ 652ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 653e295cfcbSEvgeniy Dushistov { 6541da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 655ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6561da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6571da177e4SLinus Torvalds unsigned char * base, * space; 6581da177e4SLinus Torvalds unsigned blks, size, i; 6591da177e4SLinus Torvalds 660ee3ffd6cSEvgeniy Dushistov 661abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6626cfd0148SChristoph Hellwig 663ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6641da177e4SLinus Torvalds size = uspi->s_cssize; 6651da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 666e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6671da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6681da177e4SLinus Torvalds size = uspi->s_bsize; 6691da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6701da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6713313e292SEvgeniy Dushistov 6721da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6733313e292SEvgeniy Dushistov 6741da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6751da177e4SLinus Torvalds space += size; 6761da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6771da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6781da177e4SLinus Torvalds ubh_brelse (ubh); 6791da177e4SLinus Torvalds } 6801da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6811da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6821da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6851da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6861da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6871da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6881da177e4SLinus Torvalds kfree (sbi->s_ucg); 6891da177e4SLinus Torvalds kfree (base); 6906cfd0148SChristoph Hellwig 691abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6921da177e4SLinus Torvalds } 6931da177e4SLinus Torvalds 6947bd54ef7SArtem Bityutskiy static int ufs_sync_fs(struct super_block *sb, int wait) 6957bd54ef7SArtem Bityutskiy { 6967bd54ef7SArtem Bityutskiy struct ufs_sb_private_info * uspi; 6977bd54ef7SArtem Bityutskiy struct ufs_super_block_first * usb1; 6987bd54ef7SArtem Bityutskiy struct ufs_super_block_third * usb3; 6997bd54ef7SArtem Bityutskiy unsigned flags; 7007bd54ef7SArtem Bityutskiy 7017bd54ef7SArtem Bityutskiy lock_ufs(sb); 702b6963327SMarco Stornelli mutex_lock(&UFS_SB(sb)->s_lock); 7037bd54ef7SArtem Bityutskiy 7047bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7057bd54ef7SArtem Bityutskiy 7067bd54ef7SArtem Bityutskiy flags = UFS_SB(sb)->s_flags; 7077bd54ef7SArtem Bityutskiy uspi = UFS_SB(sb)->s_uspi; 7087bd54ef7SArtem Bityutskiy usb1 = ubh_get_usb_first(uspi); 7097bd54ef7SArtem Bityutskiy usb3 = ubh_get_usb_third(uspi); 7107bd54ef7SArtem Bityutskiy 7117bd54ef7SArtem Bityutskiy usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 7127bd54ef7SArtem Bityutskiy if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 7137bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 7147bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 7157bd54ef7SArtem Bityutskiy ufs_set_fs_state(sb, usb1, usb3, 7167bd54ef7SArtem Bityutskiy UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 7177bd54ef7SArtem Bityutskiy ufs_put_cstotal(sb); 7187bd54ef7SArtem Bityutskiy 7197bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 720b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 7217bd54ef7SArtem Bityutskiy unlock_ufs(sb); 7227bd54ef7SArtem Bityutskiy 7237bd54ef7SArtem Bityutskiy return 0; 7247bd54ef7SArtem Bityutskiy } 7257bd54ef7SArtem Bityutskiy 7269e9ad5f4SArtem Bityutskiy static void delayed_sync_fs(struct work_struct *work) 7277bd54ef7SArtem Bityutskiy { 7289e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi; 7299e9ad5f4SArtem Bityutskiy 7309e9ad5f4SArtem Bityutskiy sbi = container_of(work, struct ufs_sb_info, sync_work.work); 7319e9ad5f4SArtem Bityutskiy 7329e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7339e9ad5f4SArtem Bityutskiy sbi->work_queued = 0; 7349e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7359e9ad5f4SArtem Bityutskiy 7369e9ad5f4SArtem Bityutskiy ufs_sync_fs(sbi->sb, 1); 7379e9ad5f4SArtem Bityutskiy } 7389e9ad5f4SArtem Bityutskiy 7399e9ad5f4SArtem Bityutskiy void ufs_mark_sb_dirty(struct super_block *sb) 7409e9ad5f4SArtem Bityutskiy { 7419e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi = UFS_SB(sb); 7429e9ad5f4SArtem Bityutskiy unsigned long delay; 7439e9ad5f4SArtem Bityutskiy 7449e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7459e9ad5f4SArtem Bityutskiy if (!sbi->work_queued) { 7469e9ad5f4SArtem Bityutskiy delay = msecs_to_jiffies(dirty_writeback_interval * 10); 7479e9ad5f4SArtem Bityutskiy queue_delayed_work(system_long_wq, &sbi->sync_work, delay); 7489e9ad5f4SArtem Bityutskiy sbi->work_queued = 1; 7499e9ad5f4SArtem Bityutskiy } 7509e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7517bd54ef7SArtem Bityutskiy } 7527bd54ef7SArtem Bityutskiy 7537bd54ef7SArtem Bityutskiy static void ufs_put_super(struct super_block *sb) 7547bd54ef7SArtem Bityutskiy { 7557bd54ef7SArtem Bityutskiy struct ufs_sb_info * sbi = UFS_SB(sb); 7567bd54ef7SArtem Bityutskiy 7577bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7587bd54ef7SArtem Bityutskiy 7597bd54ef7SArtem Bityutskiy if (!(sb->s_flags & MS_RDONLY)) 7607bd54ef7SArtem Bityutskiy ufs_put_super_internal(sb); 7619e9ad5f4SArtem Bityutskiy cancel_delayed_work_sync(&sbi->sync_work); 7627bd54ef7SArtem Bityutskiy 7637bd54ef7SArtem Bityutskiy ubh_brelse_uspi (sbi->s_uspi); 7647bd54ef7SArtem Bityutskiy kfree (sbi->s_uspi); 7657bd54ef7SArtem Bityutskiy kfree (sbi); 7667bd54ef7SArtem Bityutskiy sb->s_fs_info = NULL; 7677bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7687bd54ef7SArtem Bityutskiy return; 7697bd54ef7SArtem Bityutskiy } 7707bd54ef7SArtem Bityutskiy 7711da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 7721da177e4SLinus Torvalds { 7731da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7741da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7751da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7761da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7771da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7781da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7791da177e4SLinus Torvalds struct inode *inode; 7801da177e4SLinus Torvalds unsigned block_size, super_block_size; 7811da177e4SLinus Torvalds unsigned flags; 7827b4ee73eSEvgeniy unsigned super_block_offset; 7839e6766ccSDuane Griffin unsigned maxsymlen; 784b55c460dSDavid Howells int ret = -EINVAL; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds uspi = NULL; 7871da177e4SLinus Torvalds ubh = NULL; 7881da177e4SLinus Torvalds flags = 0; 7891da177e4SLinus Torvalds 790abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7911da177e4SLinus Torvalds 792f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 7931da177e4SLinus Torvalds if (!sbi) 7941da177e4SLinus Torvalds goto failed_nomem; 7951da177e4SLinus Torvalds sb->s_fs_info = sbi; 7969e9ad5f4SArtem Bityutskiy sbi->sb = sb; 7971da177e4SLinus Torvalds 798abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 8011da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8021da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 8031da177e4SLinus Torvalds "can't be mounted as read-write\n"); 8041da177e4SLinus Torvalds goto failed; 8051da177e4SLinus Torvalds } 8061da177e4SLinus Torvalds #endif 807788257d6SArnd Bergmann mutex_init(&sbi->mutex); 808b6963327SMarco Stornelli mutex_init(&sbi->s_lock); 8099e9ad5f4SArtem Bityutskiy spin_lock_init(&sbi->work_lock); 8109e9ad5f4SArtem Bityutskiy INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs); 8111da177e4SLinus Torvalds /* 8121da177e4SLinus Torvalds * Set default mount options 8131da177e4SLinus Torvalds * Parse mount options 8141da177e4SLinus Torvalds */ 8151da177e4SLinus Torvalds sbi->s_mount_opt = 0; 8161da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 8171da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 8181da177e4SLinus Torvalds printk("wrong mount options\n"); 8191da177e4SLinus Torvalds goto failed; 8201da177e4SLinus Torvalds } 8211da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 8221da177e4SLinus Torvalds if (!silent) 8231da177e4SLinus Torvalds printk("You didn't specify the type of your ufs filesystem\n\n" 8241da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 825c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 8261da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 8271da177e4SLinus Torvalds "default is ufstype=old\n"); 8281da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 8291da177e4SLinus Torvalds } 8301da177e4SLinus Torvalds 831252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 832252e211eSMark Fortescue sbi->s_uspi = uspi; 8331da177e4SLinus Torvalds if (!uspi) 8341da177e4SLinus Torvalds goto failed; 835f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 8367b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 8377b4ee73eSEvgeniy 8381da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 8391da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 8401da177e4SLinus Torvalds the rules */ 8411da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 8421da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 843abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 8441da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8451da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8461da177e4SLinus Torvalds uspi->s_fshift = 9; 8471da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8481da177e4SLinus Torvalds uspi->s_sbbase = 0; 8491da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8501da177e4SLinus Torvalds break; 8511da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 852abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 8537b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 8541da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8551da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8561da177e4SLinus Torvalds uspi->s_fshift = 9; 8571da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8581da177e4SLinus Torvalds uspi->s_sbbase = 0; 8591da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8601da177e4SLinus Torvalds break; 8611da177e4SLinus Torvalds 8621da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 863abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 8641da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8651da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8661da177e4SLinus Torvalds uspi->s_fshift = 10; 8671da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8681da177e4SLinus Torvalds uspi->s_sbbase = 0; 869252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8701da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 8711da177e4SLinus Torvalds break; 8721da177e4SLinus Torvalds 873252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 874252e211eSMark Fortescue UFSD(("ufstype=sunos\n")) 875252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 876252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 877252e211eSMark Fortescue uspi->s_fshift = 10; 878252e211eSMark Fortescue uspi->s_sbsize = 2048; 879252e211eSMark Fortescue super_block_size = 2048; 880252e211eSMark Fortescue uspi->s_sbbase = 0; 881252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 882252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 883252e211eSMark Fortescue break; 884252e211eSMark Fortescue 8851da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 886abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 8871da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8881da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8891da177e4SLinus Torvalds uspi->s_fshift = 10; 8901da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8911da177e4SLinus Torvalds uspi->s_sbbase = 0; 892252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8931da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8941da177e4SLinus Torvalds break; 8951da177e4SLinus Torvalds 8961da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 897abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 8981da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8991da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9001da177e4SLinus Torvalds uspi->s_fshift = 10; 9011da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9021da177e4SLinus Torvalds uspi->s_sbbase = 0; 9031da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9041da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9051da177e4SLinus Torvalds if (!silent) 9061da177e4SLinus Torvalds printk(KERN_INFO "ufstype=old is supported read-only\n"); 9071da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9081da177e4SLinus Torvalds } 9091da177e4SLinus Torvalds break; 9101da177e4SLinus Torvalds 9111da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 912abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 9131da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9141da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9151da177e4SLinus Torvalds uspi->s_fshift = 10; 9161da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9171da177e4SLinus Torvalds uspi->s_sbbase = 0; 9180c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9191da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9201da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9211da177e4SLinus Torvalds if (!silent) 9221da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); 9231da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds break; 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 928abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 9291da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 9301da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 9311da177e4SLinus Torvalds uspi->s_fshift = 11; 9321da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9331da177e4SLinus Torvalds uspi->s_sbbase = 0; 9340c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9351da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9361da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9371da177e4SLinus Torvalds if (!silent) 9381da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); 9391da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9401da177e4SLinus Torvalds } 9411da177e4SLinus Torvalds break; 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 944abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 9451da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9461da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9471da177e4SLinus Torvalds uspi->s_fshift = 10; 9481da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9491da177e4SLinus Torvalds uspi->s_sbbase = 0; 950f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 9511da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 9521da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9531da177e4SLinus Torvalds if (!silent) 9541da177e4SLinus Torvalds printk(KERN_INFO "ufstype=openstep is supported read-only\n"); 9551da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds break; 9581da177e4SLinus Torvalds 9591da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 960abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 9611da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9621da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9631da177e4SLinus Torvalds uspi->s_fshift = 10; 9641da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9651da177e4SLinus Torvalds uspi->s_sbbase = 0; 9661da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9671da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9681da177e4SLinus Torvalds if (!silent) 9691da177e4SLinus Torvalds printk(KERN_INFO "ufstype=hp is supported read-only\n"); 9701da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9711da177e4SLinus Torvalds } 9721da177e4SLinus Torvalds break; 9731da177e4SLinus Torvalds default: 9741da177e4SLinus Torvalds if (!silent) 9751da177e4SLinus Torvalds printk("unknown ufstype\n"); 9761da177e4SLinus Torvalds goto failed; 9771da177e4SLinus Torvalds } 9781da177e4SLinus Torvalds 9791da177e4SLinus Torvalds again: 9801da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 9811da177e4SLinus Torvalds printk(KERN_ERR "UFS: failed to set blocksize\n"); 9821da177e4SLinus Torvalds goto failed; 9831da177e4SLinus Torvalds } 9841da177e4SLinus Torvalds 9851da177e4SLinus Torvalds /* 9861da177e4SLinus Torvalds * read ufs super block from device 9871da177e4SLinus Torvalds */ 9887b4ee73eSEvgeniy 9897b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 9907b4ee73eSEvgeniy 9911da177e4SLinus Torvalds if (!ubh) 9921da177e4SLinus Torvalds goto failed; 9931da177e4SLinus Torvalds 9947b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9957b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 9967b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 9971da177e4SLinus Torvalds 998252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 999252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 1000252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 1001252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 1002252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 1003252e211eSMark Fortescue flags |= UFS_ST_SUN; 1004252e211eSMark Fortescue } 1005252e211eSMark Fortescue 10061da177e4SLinus Torvalds /* 10071da177e4SLinus Torvalds * Check ufs magic number 10081da177e4SLinus Torvalds */ 10091da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 10101da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10111da177e4SLinus Torvalds case UFS_MAGIC: 1012d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10131da177e4SLinus Torvalds case UFS2_MAGIC: 10141da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10151da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10161da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10171da177e4SLinus Torvalds goto magic_found; 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 10201da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10211da177e4SLinus Torvalds case UFS_MAGIC: 1022d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10231da177e4SLinus Torvalds case UFS2_MAGIC: 10241da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10251da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10261da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10271da177e4SLinus Torvalds goto magic_found; 10281da177e4SLinus Torvalds } 10291da177e4SLinus Torvalds 10301da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 10311da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 10321da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 10331da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 10341da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10351da177e4SLinus Torvalds ubh = NULL; 10361da177e4SLinus Torvalds uspi->s_sbbase += 8; 10371da177e4SLinus Torvalds goto again; 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds if (!silent) 10401da177e4SLinus Torvalds printk("ufs_read_super: bad magic number\n"); 10411da177e4SLinus Torvalds goto failed; 10421da177e4SLinus Torvalds 10431da177e4SLinus Torvalds magic_found: 10441da177e4SLinus Torvalds /* 10451da177e4SLinus Torvalds * Check block and fragment sizes 10461da177e4SLinus Torvalds */ 10471da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 10481da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 10491da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 10501da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10511da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 10521da177e4SLinus Torvalds 10539e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 10541da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 10551da177e4SLinus Torvalds uspi->s_fsize); 10561da177e4SLinus Torvalds goto failed; 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 10591da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", 10601da177e4SLinus Torvalds uspi->s_fsize); 10611da177e4SLinus Torvalds goto failed; 10621da177e4SLinus Torvalds } 10631da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 10641da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", 10651da177e4SLinus Torvalds uspi->s_fsize); 10661da177e4SLinus Torvalds goto failed; 10671da177e4SLinus Torvalds } 10689e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 10691da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 10701da177e4SLinus Torvalds uspi->s_bsize); 10711da177e4SLinus Torvalds goto failed; 10721da177e4SLinus Torvalds } 10731da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 10741da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is too small\n", 10751da177e4SLinus Torvalds uspi->s_bsize); 10761da177e4SLinus Torvalds goto failed; 10771da177e4SLinus Torvalds } 10781da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 10791da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", 10801da177e4SLinus Torvalds uspi->s_bsize / uspi->s_fsize); 10811da177e4SLinus Torvalds goto failed; 10821da177e4SLinus Torvalds } 10831da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 10841da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10851da177e4SLinus Torvalds ubh = NULL; 10861da177e4SLinus Torvalds block_size = uspi->s_fsize; 10871da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1088abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 10891da177e4SLinus Torvalds goto again; 10901da177e4SLinus Torvalds } 10911da177e4SLinus Torvalds 1092f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 10933313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvalds /* 10961da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 10971da177e4SLinus Torvalds * If not, make it read only. 10981da177e4SLinus Torvalds */ 1099f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 11001da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1101f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1102f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1103f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1104f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 11051da177e4SLinus Torvalds switch(usb1->fs_clean) { 11061da177e4SLinus Torvalds case UFS_FSCLEAN: 1107abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 11081da177e4SLinus Torvalds break; 11091da177e4SLinus Torvalds case UFS_FSSTABLE: 1110abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 11111da177e4SLinus Torvalds break; 1112b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1113b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1114b3a0fd4dSAlex Viskovatoff break; 11151da177e4SLinus Torvalds case UFS_FSOSF1: 1116abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 11171da177e4SLinus Torvalds break; 11181da177e4SLinus Torvalds case UFS_FSACTIVE: 11191da177e4SLinus Torvalds printk("ufs_read_super: fs is active\n"); 11201da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11211da177e4SLinus Torvalds break; 11221da177e4SLinus Torvalds case UFS_FSBAD: 11231da177e4SLinus Torvalds printk("ufs_read_super: fs is bad\n"); 11241da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11251da177e4SLinus Torvalds break; 11261da177e4SLinus Torvalds default: 11271da177e4SLinus Torvalds printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); 11281da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11291da177e4SLinus Torvalds break; 11301da177e4SLinus Torvalds } 1131ee3ffd6cSEvgeniy Dushistov } else { 11321da177e4SLinus Torvalds printk("ufs_read_super: fs needs fsck\n"); 11331da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11341da177e4SLinus Torvalds } 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds /* 11371da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 11381da177e4SLinus Torvalds */ 11391da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1140f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1141123e9cafSChristoph Hellwig 11421da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 11431da177e4SLinus Torvalds 11441da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 11451da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 11461da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 11471da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 11481da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 11491da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1152647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1153647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1154647b7e87SEvgeniy Dushistov } else { 11551da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 11561da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 11571da177e4SLinus Torvalds } 11581da177e4SLinus Torvalds 11591da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 11601da177e4SLinus Torvalds /* s_bsize already set */ 11611da177e4SLinus Torvalds /* s_fsize already set */ 11621da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 11631da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 11641da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 11651da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 11661da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 11671da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1168abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1169abf5d15fSEvgeniy Dushistov uspi->s_fshift); 11701da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 11711da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 11721da177e4SLinus Torvalds /* s_sbsize already set */ 11731da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 11741da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 11751da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 11761da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11771da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11781da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11791da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 11801da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 11813313e292SEvgeniy Dushistov 11823313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 11833313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 11843313e292SEvgeniy Dushistov else 11851da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 11863313e292SEvgeniy Dushistov 11871da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 11881da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 11891da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 11901da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 11911da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 11921da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 11931da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1194647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1195647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 11961da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 11971da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 11981da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 11991da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 12001da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds /* 12031da177e4SLinus Torvalds * Compute another frequently used values 12041da177e4SLinus Torvalds */ 12051da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1206abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 12071da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1208abf5d15fSEvgeniy Dushistov else 12091da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1210abf5d15fSEvgeniy Dushistov 12111da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 12121da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 12131da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 12141da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 12151da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 12161da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 12171da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 12181da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 12191da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 12201da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 12211da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 12221da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 122390b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 122490b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 12251da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1226647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 12271da177e4SLinus Torvalds 12289e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 12299e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 12309e6766ccSDuane Griffin else 12319e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 12329e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 12339e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 12349e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 12359e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 12369e6766ccSDuane Griffin } 12378de52778SAl Viro sb->s_max_links = UFS_LINK_MAX; 12389e6766ccSDuane Griffin 1239b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1240b55c460dSDavid Howells if (IS_ERR(inode)) { 1241b55c460dSDavid Howells ret = PTR_ERR(inode); 12421da177e4SLinus Torvalds goto failed; 1243b55c460dSDavid Howells } 124448fde701SAl Viro sb->s_root = d_make_root(inode); 1245b55c460dSDavid Howells if (!sb->s_root) { 1246b55c460dSDavid Howells ret = -ENOMEM; 124748fde701SAl Viro goto failed; 1248b55c460dSDavid Howells } 12491da177e4SLinus Torvalds 1250ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 12511da177e4SLinus Torvalds /* 12521da177e4SLinus Torvalds * Read cylinder group structures 12531da177e4SLinus Torvalds */ 12541da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 12551da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 12561da177e4SLinus Torvalds goto failed; 12571da177e4SLinus Torvalds 1258abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12591da177e4SLinus Torvalds return 0; 12601da177e4SLinus Torvalds 12611da177e4SLinus Torvalds failed: 1262f99d49adSJesper Juhl if (ubh) 1263f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1264f99d49adSJesper Juhl kfree (uspi); 1265f99d49adSJesper Juhl kfree(sbi); 12661da177e4SLinus Torvalds sb->s_fs_info = NULL; 1267abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1268b55c460dSDavid Howells return ret; 12691da177e4SLinus Torvalds 12701da177e4SLinus Torvalds failed_nomem: 1271abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 12721da177e4SLinus Torvalds return -ENOMEM; 12731da177e4SLinus Torvalds } 12741da177e4SLinus Torvalds 12751da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 12761da177e4SLinus Torvalds { 12771da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 12781da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 12791da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 12801da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 12811da177e4SLinus Torvalds unsigned flags; 12821da177e4SLinus Torvalds 128302b9984dSTheodore Ts'o sync_filesystem(sb); 1284788257d6SArnd Bergmann lock_ufs(sb); 1285b6963327SMarco Stornelli mutex_lock(&UFS_SB(sb)->s_lock); 12861da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12871da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12887b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12897b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12901da177e4SLinus Torvalds 12911da177e4SLinus Torvalds /* 12921da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 12931da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 12941da177e4SLinus Torvalds */ 12951da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 12961da177e4SLinus Torvalds new_mount_opt = 0; 12971da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1298bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1299b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1300788257d6SArnd Bergmann unlock_ufs(sb); 13011da177e4SLinus Torvalds return -EINVAL; 1302bbd6851aSAl Viro } 13031da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 13041da177e4SLinus Torvalds new_mount_opt |= ufstype; 1305ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 13061da177e4SLinus Torvalds printk("ufstype can't be changed during remount\n"); 1307b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1308788257d6SArnd Bergmann unlock_ufs(sb); 13091da177e4SLinus Torvalds return -EINVAL; 13101da177e4SLinus Torvalds } 13111da177e4SLinus Torvalds 13121da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 13131da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1314b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1315788257d6SArnd Bergmann unlock_ufs(sb); 13161da177e4SLinus Torvalds return 0; 13171da177e4SLinus Torvalds } 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds /* 13201da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13211da177e4SLinus Torvalds */ 13221da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1323ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 13241da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 13251da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1326252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13271da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13281da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13291da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13309695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13311da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1332ee3ffd6cSEvgeniy Dushistov } else { 13331da177e4SLinus Torvalds /* 13341da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13351da177e4SLinus Torvalds */ 13361da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 13371da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 13381da177e4SLinus Torvalds "can't be mounted as read-write\n"); 1339b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1340788257d6SArnd Bergmann unlock_ufs(sb); 13411da177e4SLinus Torvalds return -EINVAL; 13421da177e4SLinus Torvalds #else 13431da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1344252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13451da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1346cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1347cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 13481da177e4SLinus Torvalds printk("this ufstype is read-only supported\n"); 1349b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1350788257d6SArnd Bergmann unlock_ufs(sb); 13511da177e4SLinus Torvalds return -EINVAL; 13521da177e4SLinus Torvalds } 13531da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 13541da177e4SLinus Torvalds printk("failed during remounting\n"); 1355b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1356788257d6SArnd Bergmann unlock_ufs(sb); 13571da177e4SLinus Torvalds return -EPERM; 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 13601da177e4SLinus Torvalds #endif 13611da177e4SLinus Torvalds } 13621da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1363b6963327SMarco Stornelli mutex_unlock(&UFS_SB(sb)->s_lock); 1364788257d6SArnd Bergmann unlock_ufs(sb); 13651da177e4SLinus Torvalds return 0; 13661da177e4SLinus Torvalds } 13671da177e4SLinus Torvalds 136834c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13692a9807c0SEvgeniy Dushistov { 137034c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13712a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1372a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13732a9807c0SEvgeniy Dushistov 13742a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13752a9807c0SEvgeniy Dushistov ++tp; 13762a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13772a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13782a9807c0SEvgeniy Dushistov 13792a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13802a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13812a9807c0SEvgeniy Dushistov ++tp; 13822a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13832a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13842a9807c0SEvgeniy Dushistov 13852a9807c0SEvgeniy Dushistov return 0; 13862a9807c0SEvgeniy Dushistov } 13872a9807c0SEvgeniy Dushistov 1388726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 13891da177e4SLinus Torvalds { 1390726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1391647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1392647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 13931da177e4SLinus Torvalds struct ufs_super_block_first *usb1; 1394647b7e87SEvgeniy Dushistov struct ufs_super_block_second *usb2; 1395647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 139641d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 13971da177e4SLinus Torvalds 1398788257d6SArnd Bergmann lock_ufs(sb); 13991da177e4SLinus Torvalds 14007b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 1401647b7e87SEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 1402647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 14031da177e4SLinus Torvalds 14041da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 14051da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1406647b7e87SEvgeniy Dushistov buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1407647b7e87SEvgeniy Dushistov } else { 14081da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 14091da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 14101da177e4SLinus Torvalds } 1411ee3ffd6cSEvgeniy Dushistov buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + 1412ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree; 1413ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14141da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 14151da177e4SLinus Torvalds buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) 14161da177e4SLinus Torvalds ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; 14171da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14181da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 141941d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 142041d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 14211da177e4SLinus Torvalds 1422788257d6SArnd Bergmann unlock_ufs(sb); 14231da177e4SLinus Torvalds 14241da177e4SLinus Torvalds return 0; 14251da177e4SLinus Torvalds } 14261da177e4SLinus Torvalds 1427e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14301da177e4SLinus Torvalds { 14311da177e4SLinus Torvalds struct ufs_inode_info *ei; 1432788257d6SArnd Bergmann ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); 14331da177e4SLinus Torvalds if (!ei) 14341da177e4SLinus Torvalds return NULL; 14351da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 14361da177e4SLinus Torvalds return &ei->vfs_inode; 14371da177e4SLinus Torvalds } 14381da177e4SLinus Torvalds 1439fa0d7e3dSNick Piggin static void ufs_i_callback(struct rcu_head *head) 1440fa0d7e3dSNick Piggin { 1441fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 1442fa0d7e3dSNick Piggin kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 1443fa0d7e3dSNick Piggin } 1444fa0d7e3dSNick Piggin 14451da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 14461da177e4SLinus Torvalds { 1447fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ufs_i_callback); 14481da177e4SLinus Torvalds } 14491da177e4SLinus Torvalds 145051cc5068SAlexey Dobriyan static void init_once(void *foo) 14511da177e4SLinus Torvalds { 14521da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14531da177e4SLinus Torvalds 14541da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14551da177e4SLinus Torvalds } 14561da177e4SLinus Torvalds 14571da177e4SLinus Torvalds static int init_inodecache(void) 14581da177e4SLinus Torvalds { 14591da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 14601da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1461fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 1462fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 146320c2df83SPaul Mundt init_once); 14641da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14651da177e4SLinus Torvalds return -ENOMEM; 14661da177e4SLinus Torvalds return 0; 14671da177e4SLinus Torvalds } 14681da177e4SLinus Torvalds 14691da177e4SLinus Torvalds static void destroy_inodecache(void) 14701da177e4SLinus Torvalds { 14718c0a8537SKirill A. Shutemov /* 14728c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 14738c0a8537SKirill A. Shutemov * destroy cache. 14748c0a8537SKirill A. Shutemov */ 14758c0a8537SKirill A. Shutemov rcu_barrier(); 14761a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 1479ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14801da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 14811da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 14821da177e4SLinus Torvalds .write_inode = ufs_write_inode, 148358e8268cSAl Viro .evict_inode = ufs_evict_inode, 14841da177e4SLinus Torvalds .put_super = ufs_put_super, 14858c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14861da177e4SLinus Torvalds .statfs = ufs_statfs, 14871da177e4SLinus Torvalds .remount_fs = ufs_remount, 14882a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 14891da177e4SLinus Torvalds }; 14901da177e4SLinus Torvalds 1491152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1492152a0836SAl Viro int flags, const char *dev_name, void *data) 14931da177e4SLinus Torvalds { 1494152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 14951da177e4SLinus Torvalds } 14961da177e4SLinus Torvalds 14971da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 14981da177e4SLinus Torvalds .owner = THIS_MODULE, 14991da177e4SLinus Torvalds .name = "ufs", 1500152a0836SAl Viro .mount = ufs_mount, 15011da177e4SLinus Torvalds .kill_sb = kill_block_super, 15021da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15031da177e4SLinus Torvalds }; 15047f78e035SEric W. Biederman MODULE_ALIAS_FS("ufs"); 15051da177e4SLinus Torvalds 15061da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15071da177e4SLinus Torvalds { 15081da177e4SLinus Torvalds int err = init_inodecache(); 15091da177e4SLinus Torvalds if (err) 15101da177e4SLinus Torvalds goto out1; 15111da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15121da177e4SLinus Torvalds if (err) 15131da177e4SLinus Torvalds goto out; 15141da177e4SLinus Torvalds return 0; 15151da177e4SLinus Torvalds out: 15161da177e4SLinus Torvalds destroy_inodecache(); 15171da177e4SLinus Torvalds out1: 15181da177e4SLinus Torvalds return err; 15191da177e4SLinus Torvalds } 15201da177e4SLinus Torvalds 15211da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15221da177e4SLinus Torvalds { 15231da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15241da177e4SLinus Torvalds destroy_inodecache(); 15251da177e4SLinus Torvalds } 15261da177e4SLinus Torvalds 15271da177e4SLinus Torvalds module_init(init_ufs_fs) 15281da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15291da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1530