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 #include <asm/system.h> 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds #include <linux/errno.h> 791da177e4SLinus Torvalds #include <linux/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/buffer_head.h> 881da177e4SLinus Torvalds #include <linux/vfs.h> 899e8c4273Svignesh babu #include <linux/log2.h> 902a9807c0SEvgeniy Dushistov #include <linux/mount.h> 912a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 921da177e4SLinus Torvalds 93e5420598SMike Frysinger #include "ufs_fs.h" 94bcd6d4ecSChristoph Hellwig #include "ufs.h" 951da177e4SLinus Torvalds #include "swab.h" 961da177e4SLinus Torvalds #include "util.h" 971da177e4SLinus Torvalds 98788257d6SArnd Bergmann void lock_ufs(struct super_block *sb) 99788257d6SArnd Bergmann { 100788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 101788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 102788257d6SArnd Bergmann 103788257d6SArnd Bergmann mutex_lock(&sbi->mutex); 104788257d6SArnd Bergmann sbi->mutex_owner = current; 105788257d6SArnd Bergmann #endif 106788257d6SArnd Bergmann } 107788257d6SArnd Bergmann 108788257d6SArnd Bergmann void unlock_ufs(struct super_block *sb) 109788257d6SArnd Bergmann { 110788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 111788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 112788257d6SArnd Bergmann 113788257d6SArnd Bergmann sbi->mutex_owner = NULL; 114788257d6SArnd Bergmann mutex_unlock(&sbi->mutex); 115788257d6SArnd Bergmann #endif 116788257d6SArnd Bergmann } 117788257d6SArnd Bergmann 118f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 119f3e2a520SAlexey Dobriyan { 120f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 121f3e2a520SAlexey Dobriyan struct inode *inode; 122f3e2a520SAlexey Dobriyan 123f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 124f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 125f3e2a520SAlexey Dobriyan 126f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 127f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 128f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 129f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 130f3e2a520SAlexey Dobriyan iput(inode); 131f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 132f3e2a520SAlexey Dobriyan } 133f3e2a520SAlexey Dobriyan return inode; 134f3e2a520SAlexey Dobriyan } 135f3e2a520SAlexey Dobriyan 136f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 137f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 138f3e2a520SAlexey Dobriyan { 139f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 140f3e2a520SAlexey Dobriyan } 141f3e2a520SAlexey Dobriyan 142f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 143f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 144f3e2a520SAlexey Dobriyan { 145f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 146f3e2a520SAlexey Dobriyan } 147f3e2a520SAlexey Dobriyan 148f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 149f3e2a520SAlexey Dobriyan { 150f3e2a520SAlexey Dobriyan struct qstr dot_dot = { 151f3e2a520SAlexey Dobriyan .name = "..", 152f3e2a520SAlexey Dobriyan .len = 2, 153f3e2a520SAlexey Dobriyan }; 154f3e2a520SAlexey Dobriyan ino_t ino; 155f3e2a520SAlexey Dobriyan 156f3e2a520SAlexey Dobriyan ino = ufs_inode_by_name(child->d_inode, &dot_dot); 157f3e2a520SAlexey Dobriyan if (!ino) 158f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 159f3e2a520SAlexey Dobriyan return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); 160f3e2a520SAlexey Dobriyan } 161f3e2a520SAlexey Dobriyan 162f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 163f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 164f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 165f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 166f3e2a520SAlexey Dobriyan }; 167f3e2a520SAlexey Dobriyan 168abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1691da177e4SLinus Torvalds /* 1701da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1711da177e4SLinus Torvalds */ 1723313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1731da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1741da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1751da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1761da177e4SLinus Torvalds { 1773313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1783313e292SEvgeniy Dushistov 1791da177e4SLinus Torvalds printk("ufs_print_super_stuff\n"); 1803313e292SEvgeniy Dushistov printk(" magic: 0x%x\n", magic); 1813313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 182647b7e87SEvgeniy Dushistov printk(" fs_size: %llu\n", (unsigned long long) 183647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 184647b7e87SEvgeniy Dushistov printk(" fs_dsize: %llu\n", (unsigned long long) 185647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 186647b7e87SEvgeniy Dushistov printk(" bsize: %u\n", 187647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 188647b7e87SEvgeniy Dushistov printk(" fsize: %u\n", 189647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 190647b7e87SEvgeniy Dushistov printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 191647b7e87SEvgeniy Dushistov printk(" fs_sblockloc: %llu\n", (unsigned long long) 192647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 193647b7e87SEvgeniy Dushistov printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 194647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 195647b7e87SEvgeniy Dushistov printk(" cs_nbfree(No of free blocks): %llu\n", 196647b7e87SEvgeniy Dushistov (unsigned long long) 197647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 1983313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", 1993313e292SEvgeniy Dushistov (unsigned long long) 2003313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 2013313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", 2023313e292SEvgeniy Dushistov (unsigned long long) 2033313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 20490b315afSEvgeniy Dushistov printk(KERN_INFO" fs_maxsymlinklen: %u\n", 20590b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 206647b7e87SEvgeniy Dushistov } else { 2071da177e4SLinus Torvalds printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 2081da177e4SLinus Torvalds printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 2091da177e4SLinus Torvalds printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 2101da177e4SLinus Torvalds printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 211647b7e87SEvgeniy Dushistov printk(" cgoffset: %u\n", 212647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 213647b7e87SEvgeniy Dushistov printk(" ~cgmask: 0x%x\n", 214647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 2151da177e4SLinus Torvalds printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 2161da177e4SLinus Torvalds printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 2171da177e4SLinus Torvalds printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 2181da177e4SLinus Torvalds printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 2191da177e4SLinus Torvalds printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 2201da177e4SLinus Torvalds printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 221647b7e87SEvgeniy Dushistov printk(" fragshift: %u\n", 222647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 2231da177e4SLinus Torvalds printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 2241da177e4SLinus Torvalds printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 2251da177e4SLinus Torvalds printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 2261da177e4SLinus Torvalds printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 2271da177e4SLinus Torvalds printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 2281da177e4SLinus Torvalds printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 2291da177e4SLinus Torvalds printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 2301da177e4SLinus Torvalds printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 2311da177e4SLinus Torvalds printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 2321da177e4SLinus Torvalds printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 233647b7e87SEvgeniy Dushistov printk(" fstodb: %u\n", 234647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 2351da177e4SLinus Torvalds printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 236647b7e87SEvgeniy Dushistov printk(" ndir %u\n", 237647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 238647b7e87SEvgeniy Dushistov printk(" nifree %u\n", 239647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 240647b7e87SEvgeniy Dushistov printk(" nbfree %u\n", 241647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 242647b7e87SEvgeniy Dushistov printk(" nffree %u\n", 243647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2441da177e4SLinus Torvalds } 2451da177e4SLinus Torvalds printk("\n"); 2461da177e4SLinus Torvalds } 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds /* 2491da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2501da177e4SLinus Torvalds */ 251647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 252647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2531da177e4SLinus Torvalds { 2541da177e4SLinus Torvalds printk("\nufs_print_cylinder_stuff\n"); 25596710b29SAndrew Morton printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 2561da177e4SLinus Torvalds printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 2571da177e4SLinus Torvalds printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 2581da177e4SLinus Torvalds printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 2591da177e4SLinus Torvalds printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 2601da177e4SLinus Torvalds printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 2611da177e4SLinus Torvalds printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 2621da177e4SLinus Torvalds printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 2631da177e4SLinus Torvalds printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 2641da177e4SLinus Torvalds printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 2651da177e4SLinus Torvalds printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 2661da177e4SLinus Torvalds printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 2671da177e4SLinus Torvalds printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 2681da177e4SLinus Torvalds printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 2691da177e4SLinus Torvalds printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2701da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2711da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2721da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2731da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 2741da177e4SLinus Torvalds printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 2751da177e4SLinus Torvalds printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 2761da177e4SLinus Torvalds printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 2771da177e4SLinus Torvalds printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 2781da177e4SLinus Torvalds printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 279647b7e87SEvgeniy Dushistov printk(" clustersumoff %u\n", 280647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 281647b7e87SEvgeniy Dushistov printk(" clusteroff %u\n", 282647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 283647b7e87SEvgeniy Dushistov printk(" nclusterblks %u\n", 284647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 2851da177e4SLinus Torvalds printk("\n"); 2861da177e4SLinus Torvalds } 287647b7e87SEvgeniy Dushistov #else 2883313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 289647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 290abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2911da177e4SLinus Torvalds 292ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds static char error_buf[1024]; 2951da177e4SLinus Torvalds 2961da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2971da177e4SLinus Torvalds const char * fmt, ...) 2981da177e4SLinus Torvalds { 2991da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3001da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3011da177e4SLinus Torvalds va_list args; 3021da177e4SLinus Torvalds 3031da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3047b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3071da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3089695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3091da177e4SLinus Torvalds sb->s_dirt = 1; 3101da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3111da177e4SLinus Torvalds } 3121da177e4SLinus Torvalds va_start (args, fmt); 3134a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3141da177e4SLinus Torvalds va_end (args); 3151da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 3161da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 3171da177e4SLinus Torvalds panic ("UFS-fs panic (device %s): %s: %s\n", 3181da177e4SLinus Torvalds sb->s_id, function, error_buf); 3191da177e4SLinus Torvalds 3201da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 3211da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 3221da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 3231da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", 3241da177e4SLinus Torvalds sb->s_id, function, error_buf); 3251da177e4SLinus Torvalds } 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3291da177e4SLinus Torvalds const char * fmt, ...) 3301da177e4SLinus Torvalds { 3311da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3321da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3331da177e4SLinus Torvalds va_list args; 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3367b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3391da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3409695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3411da177e4SLinus Torvalds sb->s_dirt = 1; 3421da177e4SLinus Torvalds } 3431da177e4SLinus Torvalds va_start (args, fmt); 3444a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3451da177e4SLinus Torvalds va_end (args); 3461da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3471da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", 3481da177e4SLinus Torvalds sb->s_id, function, error_buf); 3491da177e4SLinus Torvalds } 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3521da177e4SLinus Torvalds const char * fmt, ...) 3531da177e4SLinus Torvalds { 3541da177e4SLinus Torvalds va_list args; 3551da177e4SLinus Torvalds 3561da177e4SLinus Torvalds va_start (args, fmt); 3574a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3581da177e4SLinus Torvalds va_end (args); 3591da177e4SLinus Torvalds printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", 3601da177e4SLinus Torvalds sb->s_id, function, error_buf); 3611da177e4SLinus Torvalds } 3621da177e4SLinus Torvalds 3631da177e4SLinus Torvalds enum { 3642a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3652a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3662a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3672a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3682a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3692a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3702a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3712a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3722a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3732a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3742a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3752a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3762a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3772a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3782a9807c0SEvgeniy Dushistov Opt_err 3791da177e4SLinus Torvalds }; 3801da177e4SLinus Torvalds 381a447c093SSteven Whitehouse static const match_table_t tokens = { 3821da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3831da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3841da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 385252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3861da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3871da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3881da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3891da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3901da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3911da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3921da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3932a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3941da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3951da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3961da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3971da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3981da177e4SLinus Torvalds {Opt_err, NULL} 3991da177e4SLinus Torvalds }; 4001da177e4SLinus Torvalds 4011da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 4021da177e4SLinus Torvalds { 4031da177e4SLinus Torvalds char * p; 4041da177e4SLinus Torvalds 405abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 4061da177e4SLinus Torvalds 4071da177e4SLinus Torvalds if (!options) 4081da177e4SLinus Torvalds return 1; 4091da177e4SLinus Torvalds 4101da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 4111da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 4121da177e4SLinus Torvalds int token; 4131da177e4SLinus Torvalds if (!*p) 4141da177e4SLinus Torvalds continue; 4151da177e4SLinus Torvalds 4161da177e4SLinus Torvalds token = match_token(p, tokens, args); 4171da177e4SLinus Torvalds switch (token) { 4181da177e4SLinus Torvalds case Opt_type_old: 4191da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4201da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4211da177e4SLinus Torvalds break; 4221da177e4SLinus Torvalds case Opt_type_sunx86: 4231da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4241da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4251da177e4SLinus Torvalds break; 4261da177e4SLinus Torvalds case Opt_type_sun: 4271da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4281da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4291da177e4SLinus Torvalds break; 430252e211eSMark Fortescue case Opt_type_sunos: 431252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 432252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 433252e211eSMark Fortescue break; 4341da177e4SLinus Torvalds case Opt_type_44bsd: 4351da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4361da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4371da177e4SLinus Torvalds break; 4381da177e4SLinus Torvalds case Opt_type_ufs2: 4391da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4401da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4411da177e4SLinus Torvalds break; 4421da177e4SLinus Torvalds case Opt_type_hp: 4431da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4441da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4451da177e4SLinus Torvalds break; 4461da177e4SLinus Torvalds case Opt_type_nextstepcd: 4471da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4481da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4491da177e4SLinus Torvalds break; 4501da177e4SLinus Torvalds case Opt_type_nextstep: 4511da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4521da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4531da177e4SLinus Torvalds break; 4541da177e4SLinus Torvalds case Opt_type_openstep: 4551da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4561da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4571da177e4SLinus Torvalds break; 4581da177e4SLinus Torvalds case Opt_onerror_panic: 4591da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4601da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4611da177e4SLinus Torvalds break; 4621da177e4SLinus Torvalds case Opt_onerror_lock: 4631da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4641da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4651da177e4SLinus Torvalds break; 4661da177e4SLinus Torvalds case Opt_onerror_umount: 4671da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4681da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4691da177e4SLinus Torvalds break; 4701da177e4SLinus Torvalds case Opt_onerror_repair: 4711da177e4SLinus Torvalds printk("UFS-fs: Unable to do repair on error, " 4721da177e4SLinus Torvalds "will lock lock instead\n"); 4731da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4741da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4751da177e4SLinus Torvalds break; 4761da177e4SLinus Torvalds default: 4771da177e4SLinus Torvalds printk("UFS-fs: Invalid option: \"%s\" " 4781da177e4SLinus Torvalds "or missing value\n", p); 4791da177e4SLinus Torvalds return 0; 4801da177e4SLinus Torvalds } 4811da177e4SLinus Torvalds } 4821da177e4SLinus Torvalds return 1; 4831da177e4SLinus Torvalds } 4841da177e4SLinus Torvalds 4851da177e4SLinus Torvalds /* 48625985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 48725985edcSLucas De Marchi * places, and use different data structure for it. 48825985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 489ee3ffd6cSEvgeniy Dushistov */ 490ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 491ee3ffd6cSEvgeniy Dushistov { 492ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 493ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 494ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 495ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 496ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 497ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 498ee3ffd6cSEvgeniy Dushistov 499ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 500ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 501ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 502ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 503ee3ffd6cSEvgeniy Dushistov 504ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 505ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 506ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 507ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 508ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 509ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 510ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 511ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 512ee3ffd6cSEvgeniy Dushistov } else { 513ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 514ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 515ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 516ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 517ee3ffd6cSEvgeniy Dushistov } 518ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 519ee3ffd6cSEvgeniy Dushistov } 520ee3ffd6cSEvgeniy Dushistov 521ee3ffd6cSEvgeniy Dushistov /* 5221da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5231da177e4SLinus Torvalds */ 524e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 525e295cfcbSEvgeniy Dushistov { 5261da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 527647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5281da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5291da177e4SLinus Torvalds unsigned char * base, * space; 5301da177e4SLinus Torvalds unsigned size, blks, i; 531ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 5321da177e4SLinus Torvalds 533abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5341da177e4SLinus Torvalds 535647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 5361da177e4SLinus Torvalds /* 5371da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5381da177e4SLinus Torvalds * on the device. 5391da177e4SLinus Torvalds */ 5401da177e4SLinus Torvalds size = uspi->s_cssize; 5411da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 542788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5431da177e4SLinus Torvalds if (!base) 5441da177e4SLinus Torvalds goto failed; 545e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5461da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5471da177e4SLinus Torvalds size = uspi->s_bsize; 5481da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5491da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5527b4ee73eSEvgeniy 5531da177e4SLinus Torvalds if (!ubh) 5541da177e4SLinus Torvalds goto failed; 5557b4ee73eSEvgeniy 5561da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5577b4ee73eSEvgeniy 5581da177e4SLinus Torvalds space += size; 5591da177e4SLinus Torvalds ubh_brelse (ubh); 5601da177e4SLinus Torvalds ubh = NULL; 5611da177e4SLinus Torvalds } 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds /* 5641da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5651da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5661da177e4SLinus Torvalds */ 567788257d6SArnd Bergmann if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_NOFS))) 5681da177e4SLinus Torvalds goto failed; 5691da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5701da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5711da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5721da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5731da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5741da177e4SLinus Torvalds } 5751da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 576abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5771da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5781da177e4SLinus Torvalds goto failed; 5791da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5801da177e4SLinus Torvalds goto failed; 581647b7e87SEvgeniy Dushistov 5821da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5831da177e4SLinus Torvalds } 5841da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 585788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5861da177e4SLinus Torvalds goto failed; 5871da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5881da177e4SLinus Torvalds } 5891da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 590abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5911da177e4SLinus Torvalds return 1; 5921da177e4SLinus Torvalds 5931da177e4SLinus Torvalds failed: 594f99d49adSJesper Juhl kfree (base); 5951da177e4SLinus Torvalds if (sbi->s_ucg) { 5961da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 597f99d49adSJesper Juhl if (sbi->s_ucg[i]) 598f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5991da177e4SLinus Torvalds kfree (sbi->s_ucg); 6001da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 601f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 6021da177e4SLinus Torvalds } 603abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 6041da177e4SLinus Torvalds return 0; 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds /* 608ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 6091da177e4SLinus Torvalds */ 610ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 611ee3ffd6cSEvgeniy Dushistov { 612ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 613ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 614ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 615ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 616ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 617ee3ffd6cSEvgeniy Dushistov 618ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 619ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 620ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 621ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 622ee3ffd6cSEvgeniy Dushistov 623ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 624ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 625ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 626ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 627ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 628ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 629ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 630ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 631ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 632ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 633ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 634ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 635ee3ffd6cSEvgeniy Dushistov } else { 636ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 637ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 638ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 639ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 640ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 641ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 642ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 643ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 644ee3ffd6cSEvgeniy Dushistov } 645ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6463313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 647ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 648ee3ffd6cSEvgeniy Dushistov } 649ee3ffd6cSEvgeniy Dushistov 650ee3ffd6cSEvgeniy Dushistov /** 651ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 652ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 653ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 654ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 655ee3ffd6cSEvgeniy Dushistov */ 656ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 657e295cfcbSEvgeniy Dushistov { 6581da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 659ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6601da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6611da177e4SLinus Torvalds unsigned char * base, * space; 6621da177e4SLinus Torvalds unsigned blks, size, i; 6631da177e4SLinus Torvalds 664ee3ffd6cSEvgeniy Dushistov 665abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6666cfd0148SChristoph Hellwig 667ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6681da177e4SLinus Torvalds size = uspi->s_cssize; 6691da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 670e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6711da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6721da177e4SLinus Torvalds size = uspi->s_bsize; 6731da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6741da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6753313e292SEvgeniy Dushistov 6761da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6773313e292SEvgeniy Dushistov 6781da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6791da177e4SLinus Torvalds space += size; 6801da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6811da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6821da177e4SLinus Torvalds ubh_brelse (ubh); 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6851da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6861da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6871da177e4SLinus Torvalds } 6881da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6891da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6901da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6911da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6921da177e4SLinus Torvalds kfree (sbi->s_ucg); 6931da177e4SLinus Torvalds kfree (base); 6946cfd0148SChristoph Hellwig 695abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6961da177e4SLinus Torvalds } 6971da177e4SLinus Torvalds 6981da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 6991da177e4SLinus Torvalds { 7001da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7011da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7021da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7031da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7041da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7051da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7061da177e4SLinus Torvalds struct inode *inode; 7071da177e4SLinus Torvalds unsigned block_size, super_block_size; 7081da177e4SLinus Torvalds unsigned flags; 7097b4ee73eSEvgeniy unsigned super_block_offset; 7109e6766ccSDuane Griffin unsigned maxsymlen; 711b55c460dSDavid Howells int ret = -EINVAL; 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds uspi = NULL; 7141da177e4SLinus Torvalds ubh = NULL; 7151da177e4SLinus Torvalds flags = 0; 7161da177e4SLinus Torvalds 717abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7181da177e4SLinus Torvalds 719f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 7201da177e4SLinus Torvalds if (!sbi) 7211da177e4SLinus Torvalds goto failed_nomem; 7221da177e4SLinus Torvalds sb->s_fs_info = sbi; 7231da177e4SLinus Torvalds 724abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 7251da177e4SLinus Torvalds 7261da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 7271da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7281da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 7291da177e4SLinus Torvalds "can't be mounted as read-write\n"); 7301da177e4SLinus Torvalds goto failed; 7311da177e4SLinus Torvalds } 7321da177e4SLinus Torvalds #endif 733788257d6SArnd Bergmann mutex_init(&sbi->mutex); 7341da177e4SLinus Torvalds /* 7351da177e4SLinus Torvalds * Set default mount options 7361da177e4SLinus Torvalds * Parse mount options 7371da177e4SLinus Torvalds */ 7381da177e4SLinus Torvalds sbi->s_mount_opt = 0; 7391da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 7401da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 7411da177e4SLinus Torvalds printk("wrong mount options\n"); 7421da177e4SLinus Torvalds goto failed; 7431da177e4SLinus Torvalds } 7441da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 7451da177e4SLinus Torvalds if (!silent) 7461da177e4SLinus Torvalds printk("You didn't specify the type of your ufs filesystem\n\n" 7471da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 748c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 7491da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 7501da177e4SLinus Torvalds "default is ufstype=old\n"); 7511da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 7521da177e4SLinus Torvalds } 7531da177e4SLinus Torvalds 754252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 755252e211eSMark Fortescue sbi->s_uspi = uspi; 7561da177e4SLinus Torvalds if (!uspi) 7571da177e4SLinus Torvalds goto failed; 758f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 7597b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 7607b4ee73eSEvgeniy 7611da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 7621da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 7631da177e4SLinus Torvalds the rules */ 7641da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 7651da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 766abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 7671da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7681da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7691da177e4SLinus Torvalds uspi->s_fshift = 9; 7701da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7711da177e4SLinus Torvalds uspi->s_sbbase = 0; 7721da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7731da177e4SLinus Torvalds break; 7741da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 775abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 7767b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 7771da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7781da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7791da177e4SLinus Torvalds uspi->s_fshift = 9; 7801da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7811da177e4SLinus Torvalds uspi->s_sbbase = 0; 7821da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7831da177e4SLinus Torvalds break; 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 786abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 7871da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7881da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7891da177e4SLinus Torvalds uspi->s_fshift = 10; 7901da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7911da177e4SLinus Torvalds uspi->s_sbbase = 0; 792252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7931da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 7941da177e4SLinus Torvalds break; 7951da177e4SLinus Torvalds 796252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 797252e211eSMark Fortescue UFSD(("ufstype=sunos\n")) 798252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 799252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 800252e211eSMark Fortescue uspi->s_fshift = 10; 801252e211eSMark Fortescue uspi->s_sbsize = 2048; 802252e211eSMark Fortescue super_block_size = 2048; 803252e211eSMark Fortescue uspi->s_sbbase = 0; 804252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 805252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 806252e211eSMark Fortescue break; 807252e211eSMark Fortescue 8081da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 809abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 8101da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8111da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8121da177e4SLinus Torvalds uspi->s_fshift = 10; 8131da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8141da177e4SLinus Torvalds uspi->s_sbbase = 0; 815252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8161da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8171da177e4SLinus Torvalds break; 8181da177e4SLinus Torvalds 8191da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 820abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 8211da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8221da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8231da177e4SLinus Torvalds uspi->s_fshift = 10; 8241da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8251da177e4SLinus Torvalds uspi->s_sbbase = 0; 8261da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8271da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8281da177e4SLinus Torvalds if (!silent) 8291da177e4SLinus Torvalds printk(KERN_INFO "ufstype=old is supported read-only\n"); 8301da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8311da177e4SLinus Torvalds } 8321da177e4SLinus Torvalds break; 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 835abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 8361da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8371da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8381da177e4SLinus Torvalds uspi->s_fshift = 10; 8391da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8401da177e4SLinus Torvalds uspi->s_sbbase = 0; 8410c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 8421da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8431da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8441da177e4SLinus Torvalds if (!silent) 8451da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); 8461da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8471da177e4SLinus Torvalds } 8481da177e4SLinus Torvalds break; 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 851abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 8521da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 8531da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 8541da177e4SLinus Torvalds uspi->s_fshift = 11; 8551da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8561da177e4SLinus Torvalds uspi->s_sbbase = 0; 8570c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 8581da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8591da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8601da177e4SLinus Torvalds if (!silent) 8611da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); 8621da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8631da177e4SLinus Torvalds } 8641da177e4SLinus Torvalds break; 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 867abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 8681da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8691da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8701da177e4SLinus Torvalds uspi->s_fshift = 10; 8711da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8721da177e4SLinus Torvalds uspi->s_sbbase = 0; 873f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 8741da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8751da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8761da177e4SLinus Torvalds if (!silent) 8771da177e4SLinus Torvalds printk(KERN_INFO "ufstype=openstep is supported read-only\n"); 8781da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8791da177e4SLinus Torvalds } 8801da177e4SLinus Torvalds break; 8811da177e4SLinus Torvalds 8821da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 883abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 8841da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8851da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8861da177e4SLinus Torvalds uspi->s_fshift = 10; 8871da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8881da177e4SLinus Torvalds uspi->s_sbbase = 0; 8891da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8901da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8911da177e4SLinus Torvalds if (!silent) 8921da177e4SLinus Torvalds printk(KERN_INFO "ufstype=hp is supported read-only\n"); 8931da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8941da177e4SLinus Torvalds } 8951da177e4SLinus Torvalds break; 8961da177e4SLinus Torvalds default: 8971da177e4SLinus Torvalds if (!silent) 8981da177e4SLinus Torvalds printk("unknown ufstype\n"); 8991da177e4SLinus Torvalds goto failed; 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds 9021da177e4SLinus Torvalds again: 9031da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 9041da177e4SLinus Torvalds printk(KERN_ERR "UFS: failed to set blocksize\n"); 9051da177e4SLinus Torvalds goto failed; 9061da177e4SLinus Torvalds } 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds /* 9091da177e4SLinus Torvalds * read ufs super block from device 9101da177e4SLinus Torvalds */ 9117b4ee73eSEvgeniy 9127b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 9137b4ee73eSEvgeniy 9141da177e4SLinus Torvalds if (!ubh) 9151da177e4SLinus Torvalds goto failed; 9161da177e4SLinus Torvalds 9177b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9187b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 9197b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 9201da177e4SLinus Torvalds 921252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 922252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 923252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 924252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 925252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 926252e211eSMark Fortescue flags |= UFS_ST_SUN; 927252e211eSMark Fortescue } 928252e211eSMark Fortescue 9291da177e4SLinus Torvalds /* 9301da177e4SLinus Torvalds * Check ufs magic number 9311da177e4SLinus Torvalds */ 9321da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 9331da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 9341da177e4SLinus Torvalds case UFS_MAGIC: 935d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 9361da177e4SLinus Torvalds case UFS2_MAGIC: 9371da177e4SLinus Torvalds case UFS_MAGIC_LFN: 9381da177e4SLinus Torvalds case UFS_MAGIC_FEA: 9391da177e4SLinus Torvalds case UFS_MAGIC_4GB: 9401da177e4SLinus Torvalds goto magic_found; 9411da177e4SLinus Torvalds } 9421da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 9431da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 9441da177e4SLinus Torvalds case UFS_MAGIC: 945d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 9461da177e4SLinus Torvalds case UFS2_MAGIC: 9471da177e4SLinus Torvalds case UFS_MAGIC_LFN: 9481da177e4SLinus Torvalds case UFS_MAGIC_FEA: 9491da177e4SLinus Torvalds case UFS_MAGIC_4GB: 9501da177e4SLinus Torvalds goto magic_found; 9511da177e4SLinus Torvalds } 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 9541da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 9551da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 9561da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 9571da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 9581da177e4SLinus Torvalds ubh = NULL; 9591da177e4SLinus Torvalds uspi->s_sbbase += 8; 9601da177e4SLinus Torvalds goto again; 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds if (!silent) 9631da177e4SLinus Torvalds printk("ufs_read_super: bad magic number\n"); 9641da177e4SLinus Torvalds goto failed; 9651da177e4SLinus Torvalds 9661da177e4SLinus Torvalds magic_found: 9671da177e4SLinus Torvalds /* 9681da177e4SLinus Torvalds * Check block and fragment sizes 9691da177e4SLinus Torvalds */ 9701da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 9711da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 9721da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 9731da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 9741da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 9751da177e4SLinus Torvalds 9769e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 9771da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 9781da177e4SLinus Torvalds uspi->s_fsize); 9791da177e4SLinus Torvalds goto failed; 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 9821da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", 9831da177e4SLinus Torvalds uspi->s_fsize); 9841da177e4SLinus Torvalds goto failed; 9851da177e4SLinus Torvalds } 9861da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 9871da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", 9881da177e4SLinus Torvalds uspi->s_fsize); 9891da177e4SLinus Torvalds goto failed; 9901da177e4SLinus Torvalds } 9919e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 9921da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 9931da177e4SLinus Torvalds uspi->s_bsize); 9941da177e4SLinus Torvalds goto failed; 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 9971da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is too small\n", 9981da177e4SLinus Torvalds uspi->s_bsize); 9991da177e4SLinus Torvalds goto failed; 10001da177e4SLinus Torvalds } 10011da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 10021da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", 10031da177e4SLinus Torvalds uspi->s_bsize / uspi->s_fsize); 10041da177e4SLinus Torvalds goto failed; 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 10071da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10081da177e4SLinus Torvalds ubh = NULL; 10091da177e4SLinus Torvalds block_size = uspi->s_fsize; 10101da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1011abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 10121da177e4SLinus Torvalds goto again; 10131da177e4SLinus Torvalds } 10141da177e4SLinus Torvalds 1015f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 10163313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 10171da177e4SLinus Torvalds 10181da177e4SLinus Torvalds /* 10191da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 10201da177e4SLinus Torvalds * If not, make it read only. 10211da177e4SLinus Torvalds */ 1022f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 10231da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1024f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1025f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1026f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1027f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 10281da177e4SLinus Torvalds switch(usb1->fs_clean) { 10291da177e4SLinus Torvalds case UFS_FSCLEAN: 1030abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 10311da177e4SLinus Torvalds break; 10321da177e4SLinus Torvalds case UFS_FSSTABLE: 1033abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 10341da177e4SLinus Torvalds break; 1035b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1036b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1037b3a0fd4dSAlex Viskovatoff break; 10381da177e4SLinus Torvalds case UFS_FSOSF1: 1039abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 10401da177e4SLinus Torvalds break; 10411da177e4SLinus Torvalds case UFS_FSACTIVE: 10421da177e4SLinus Torvalds printk("ufs_read_super: fs is active\n"); 10431da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10441da177e4SLinus Torvalds break; 10451da177e4SLinus Torvalds case UFS_FSBAD: 10461da177e4SLinus Torvalds printk("ufs_read_super: fs is bad\n"); 10471da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10481da177e4SLinus Torvalds break; 10491da177e4SLinus Torvalds default: 10501da177e4SLinus Torvalds printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); 10511da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10521da177e4SLinus Torvalds break; 10531da177e4SLinus Torvalds } 1054ee3ffd6cSEvgeniy Dushistov } else { 10551da177e4SLinus Torvalds printk("ufs_read_super: fs needs fsck\n"); 10561da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds 10591da177e4SLinus Torvalds /* 10601da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 10611da177e4SLinus Torvalds */ 10621da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1063f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1064123e9cafSChristoph Hellwig 10651da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 10661da177e4SLinus Torvalds 10671da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 10681da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 10691da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 10701da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 10711da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 10721da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 10731da177e4SLinus Torvalds 10741da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1075647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1076647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1077647b7e87SEvgeniy Dushistov } else { 10781da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 10791da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 10801da177e4SLinus Torvalds } 10811da177e4SLinus Torvalds 10821da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 10831da177e4SLinus Torvalds /* s_bsize already set */ 10841da177e4SLinus Torvalds /* s_fsize already set */ 10851da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 10861da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 10871da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 10881da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10891da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 10901da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1091abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1092abf5d15fSEvgeniy Dushistov uspi->s_fshift); 10931da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 10941da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 10951da177e4SLinus Torvalds /* s_sbsize already set */ 10961da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 10971da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 10981da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 10991da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11001da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11011da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11021da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 11031da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 11043313e292SEvgeniy Dushistov 11053313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 11063313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 11073313e292SEvgeniy Dushistov else 11081da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 11093313e292SEvgeniy Dushistov 11101da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 11111da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 11121da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 11131da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 11141da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 11151da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 11161da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1117647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1118647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 11191da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 11201da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 11211da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 11221da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 11231da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds /* 11261da177e4SLinus Torvalds * Compute another frequently used values 11271da177e4SLinus Torvalds */ 11281da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1129abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 11301da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1131abf5d15fSEvgeniy Dushistov else 11321da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1133abf5d15fSEvgeniy Dushistov 11341da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 11351da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 11361da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 11371da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 11381da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 11391da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 11401da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 11411da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 11421da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 11431da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 11441da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 11451da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 114690b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 114790b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 11481da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1149647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 11501da177e4SLinus Torvalds 11519e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 11529e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 11539e6766ccSDuane Griffin else 11549e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 11559e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 11569e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 11579e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 11589e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 11599e6766ccSDuane Griffin } 11609e6766ccSDuane Griffin 1161b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1162b55c460dSDavid Howells if (IS_ERR(inode)) { 1163b55c460dSDavid Howells ret = PTR_ERR(inode); 11641da177e4SLinus Torvalds goto failed; 1165b55c460dSDavid Howells } 11661da177e4SLinus Torvalds sb->s_root = d_alloc_root(inode); 1167b55c460dSDavid Howells if (!sb->s_root) { 1168b55c460dSDavid Howells ret = -ENOMEM; 11691da177e4SLinus Torvalds goto dalloc_failed; 1170b55c460dSDavid Howells } 11711da177e4SLinus Torvalds 1172ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 11731da177e4SLinus Torvalds /* 11741da177e4SLinus Torvalds * Read cylinder group structures 11751da177e4SLinus Torvalds */ 11761da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 11771da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 11781da177e4SLinus Torvalds goto failed; 11791da177e4SLinus Torvalds 1180abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11811da177e4SLinus Torvalds return 0; 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds dalloc_failed: 11841da177e4SLinus Torvalds iput(inode); 11851da177e4SLinus Torvalds failed: 1186f99d49adSJesper Juhl if (ubh) 1187f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1188f99d49adSJesper Juhl kfree (uspi); 1189f99d49adSJesper Juhl kfree(sbi); 11901da177e4SLinus Torvalds sb->s_fs_info = NULL; 1191abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1192b55c460dSDavid Howells return ret; 11931da177e4SLinus Torvalds 11941da177e4SLinus Torvalds failed_nomem: 1195abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 11961da177e4SLinus Torvalds return -ENOMEM; 11971da177e4SLinus Torvalds } 11981da177e4SLinus Torvalds 11998c800656SChristoph Hellwig static int ufs_sync_fs(struct super_block *sb, int wait) 1200647b7e87SEvgeniy Dushistov { 12011da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 12021da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 12031da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 12041da177e4SLinus Torvalds unsigned flags; 12051da177e4SLinus Torvalds 1206788257d6SArnd Bergmann lock_ufs(sb); 1207ebc1ac16SChristoph Hellwig lock_super(sb); 12088c800656SChristoph Hellwig 1209abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 12108c800656SChristoph Hellwig 12111da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12121da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12137b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12147b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12151da177e4SLinus Torvalds 12161da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 12178c800656SChristoph Hellwig if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 12188c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 12198c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 12201da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 12211da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 1222ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 12231da177e4SLinus Torvalds sb->s_dirt = 0; 12248c800656SChristoph Hellwig 1225abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 1226ebc1ac16SChristoph Hellwig unlock_super(sb); 1227788257d6SArnd Bergmann unlock_ufs(sb); 12288c800656SChristoph Hellwig 12298c800656SChristoph Hellwig return 0; 12308c800656SChristoph Hellwig } 12318c800656SChristoph Hellwig 12328c800656SChristoph Hellwig static void ufs_write_super(struct super_block *sb) 12338c800656SChristoph Hellwig { 12348c800656SChristoph Hellwig if (!(sb->s_flags & MS_RDONLY)) 12358c800656SChristoph Hellwig ufs_sync_fs(sb, 1); 12368c800656SChristoph Hellwig else 12378c800656SChristoph Hellwig sb->s_dirt = 0; 12381da177e4SLinus Torvalds } 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds static void ufs_put_super(struct super_block *sb) 12411da177e4SLinus Torvalds { 12421da177e4SLinus Torvalds struct ufs_sb_info * sbi = UFS_SB(sb); 12431da177e4SLinus Torvalds 1244abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 12451da177e4SLinus Torvalds 12468c85e125SChristoph Hellwig if (sb->s_dirt) 12478c85e125SChristoph Hellwig ufs_write_super(sb); 12488c85e125SChristoph Hellwig 12491da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 1250ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 12511da177e4SLinus Torvalds 12521da177e4SLinus Torvalds ubh_brelse_uspi (sbi->s_uspi); 12531da177e4SLinus Torvalds kfree (sbi->s_uspi); 12541da177e4SLinus Torvalds kfree (sbi); 12551da177e4SLinus Torvalds sb->s_fs_info = NULL; 1256abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12571da177e4SLinus Torvalds return; 12581da177e4SLinus Torvalds } 12591da177e4SLinus Torvalds 12601da177e4SLinus Torvalds 12611da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 12621da177e4SLinus Torvalds { 12631da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 12641da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 12651da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 12661da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 12671da177e4SLinus Torvalds unsigned flags; 12681da177e4SLinus Torvalds 1269788257d6SArnd Bergmann lock_ufs(sb); 1270bbd6851aSAl Viro lock_super(sb); 12711da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12721da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12737b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12747b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12751da177e4SLinus Torvalds 12761da177e4SLinus Torvalds /* 12771da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 12781da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 12791da177e4SLinus Torvalds */ 12801da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 12811da177e4SLinus Torvalds new_mount_opt = 0; 12821da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1283bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1284bbd6851aSAl Viro unlock_super(sb); 1285788257d6SArnd Bergmann unlock_ufs(sb); 12861da177e4SLinus Torvalds return -EINVAL; 1287bbd6851aSAl Viro } 12881da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 12891da177e4SLinus Torvalds new_mount_opt |= ufstype; 1290ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 12911da177e4SLinus Torvalds printk("ufstype can't be changed during remount\n"); 1292bbd6851aSAl Viro unlock_super(sb); 1293788257d6SArnd Bergmann unlock_ufs(sb); 12941da177e4SLinus Torvalds return -EINVAL; 12951da177e4SLinus Torvalds } 12961da177e4SLinus Torvalds 12971da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 12981da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1299bbd6851aSAl Viro unlock_super(sb); 1300788257d6SArnd Bergmann unlock_ufs(sb); 13011da177e4SLinus Torvalds return 0; 13021da177e4SLinus Torvalds } 13031da177e4SLinus Torvalds 13041da177e4SLinus Torvalds /* 13051da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13061da177e4SLinus Torvalds */ 13071da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1308ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 13091da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 13101da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1311252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13121da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13131da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13141da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13159695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13161da177e4SLinus Torvalds sb->s_dirt = 0; 13171da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1318ee3ffd6cSEvgeniy Dushistov } else { 13191da177e4SLinus Torvalds /* 13201da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13211da177e4SLinus Torvalds */ 13221da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 13231da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 13241da177e4SLinus Torvalds "can't be mounted as read-write\n"); 1325bbd6851aSAl Viro unlock_super(sb); 1326788257d6SArnd Bergmann unlock_ufs(sb); 13271da177e4SLinus Torvalds return -EINVAL; 13281da177e4SLinus Torvalds #else 13291da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1330252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13311da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1332cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1333cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 13341da177e4SLinus Torvalds printk("this ufstype is read-only supported\n"); 1335bbd6851aSAl Viro unlock_super(sb); 1336788257d6SArnd Bergmann unlock_ufs(sb); 13371da177e4SLinus Torvalds return -EINVAL; 13381da177e4SLinus Torvalds } 13391da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 13401da177e4SLinus Torvalds printk("failed during remounting\n"); 1341bbd6851aSAl Viro unlock_super(sb); 1342788257d6SArnd Bergmann unlock_ufs(sb); 13431da177e4SLinus Torvalds return -EPERM; 13441da177e4SLinus Torvalds } 13451da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 13461da177e4SLinus Torvalds #endif 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1349bbd6851aSAl Viro unlock_super(sb); 1350788257d6SArnd Bergmann unlock_ufs(sb); 13511da177e4SLinus Torvalds return 0; 13521da177e4SLinus Torvalds } 13531da177e4SLinus Torvalds 135434c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13552a9807c0SEvgeniy Dushistov { 135634c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13572a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1358a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13592a9807c0SEvgeniy Dushistov 13602a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13612a9807c0SEvgeniy Dushistov ++tp; 13622a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13632a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13642a9807c0SEvgeniy Dushistov 13652a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13662a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13672a9807c0SEvgeniy Dushistov ++tp; 13682a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13692a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13702a9807c0SEvgeniy Dushistov 13712a9807c0SEvgeniy Dushistov return 0; 13722a9807c0SEvgeniy Dushistov } 13732a9807c0SEvgeniy Dushistov 1374726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 13751da177e4SLinus Torvalds { 1376726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1377647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1378647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 13791da177e4SLinus Torvalds struct ufs_super_block_first *usb1; 1380647b7e87SEvgeniy Dushistov struct ufs_super_block_second *usb2; 1381647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 138241d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 13831da177e4SLinus Torvalds 1384788257d6SArnd Bergmann lock_ufs(sb); 13851da177e4SLinus Torvalds 13867b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 1387647b7e87SEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 1388647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 13891da177e4SLinus Torvalds 13901da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 13911da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1392647b7e87SEvgeniy Dushistov buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1393647b7e87SEvgeniy Dushistov } else { 13941da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 13951da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 13961da177e4SLinus Torvalds } 1397ee3ffd6cSEvgeniy Dushistov buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + 1398ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree; 1399ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14001da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 14011da177e4SLinus Torvalds buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) 14021da177e4SLinus Torvalds ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; 14031da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14041da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 140541d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 140641d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 14071da177e4SLinus Torvalds 1408788257d6SArnd Bergmann unlock_ufs(sb); 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds return 0; 14111da177e4SLinus Torvalds } 14121da177e4SLinus Torvalds 1413e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14141da177e4SLinus Torvalds 14151da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14161da177e4SLinus Torvalds { 14171da177e4SLinus Torvalds struct ufs_inode_info *ei; 1418788257d6SArnd Bergmann ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); 14191da177e4SLinus Torvalds if (!ei) 14201da177e4SLinus Torvalds return NULL; 14211da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 14221da177e4SLinus Torvalds return &ei->vfs_inode; 14231da177e4SLinus Torvalds } 14241da177e4SLinus Torvalds 1425fa0d7e3dSNick Piggin static void ufs_i_callback(struct rcu_head *head) 1426fa0d7e3dSNick Piggin { 1427fa0d7e3dSNick Piggin struct inode *inode = container_of(head, struct inode, i_rcu); 1428fa0d7e3dSNick Piggin kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 1429fa0d7e3dSNick Piggin } 1430fa0d7e3dSNick Piggin 14311da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 14321da177e4SLinus Torvalds { 1433fa0d7e3dSNick Piggin call_rcu(&inode->i_rcu, ufs_i_callback); 14341da177e4SLinus Torvalds } 14351da177e4SLinus Torvalds 143651cc5068SAlexey Dobriyan static void init_once(void *foo) 14371da177e4SLinus Torvalds { 14381da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14391da177e4SLinus Torvalds 14401da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14411da177e4SLinus Torvalds } 14421da177e4SLinus Torvalds 14431da177e4SLinus Torvalds static int init_inodecache(void) 14441da177e4SLinus Torvalds { 14451da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 14461da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1447fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 1448fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 144920c2df83SPaul Mundt init_once); 14501da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14511da177e4SLinus Torvalds return -ENOMEM; 14521da177e4SLinus Torvalds return 0; 14531da177e4SLinus Torvalds } 14541da177e4SLinus Torvalds 14551da177e4SLinus Torvalds static void destroy_inodecache(void) 14561da177e4SLinus Torvalds { 14571a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds 1460ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14611da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 14621da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 14631da177e4SLinus Torvalds .write_inode = ufs_write_inode, 146458e8268cSAl Viro .evict_inode = ufs_evict_inode, 14651da177e4SLinus Torvalds .put_super = ufs_put_super, 14661da177e4SLinus Torvalds .write_super = ufs_write_super, 14678c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14681da177e4SLinus Torvalds .statfs = ufs_statfs, 14691da177e4SLinus Torvalds .remount_fs = ufs_remount, 14702a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 14711da177e4SLinus Torvalds }; 14721da177e4SLinus Torvalds 1473152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1474152a0836SAl Viro int flags, const char *dev_name, void *data) 14751da177e4SLinus Torvalds { 1476152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 14791da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 14801da177e4SLinus Torvalds .owner = THIS_MODULE, 14811da177e4SLinus Torvalds .name = "ufs", 1482152a0836SAl Viro .mount = ufs_mount, 14831da177e4SLinus Torvalds .kill_sb = kill_block_super, 14841da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 14851da177e4SLinus Torvalds }; 14861da177e4SLinus Torvalds 14871da177e4SLinus Torvalds static int __init init_ufs_fs(void) 14881da177e4SLinus Torvalds { 14891da177e4SLinus Torvalds int err = init_inodecache(); 14901da177e4SLinus Torvalds if (err) 14911da177e4SLinus Torvalds goto out1; 14921da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 14931da177e4SLinus Torvalds if (err) 14941da177e4SLinus Torvalds goto out; 14951da177e4SLinus Torvalds return 0; 14961da177e4SLinus Torvalds out: 14971da177e4SLinus Torvalds destroy_inodecache(); 14981da177e4SLinus Torvalds out1: 14991da177e4SLinus Torvalds return err; 15001da177e4SLinus Torvalds } 15011da177e4SLinus Torvalds 15021da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15031da177e4SLinus Torvalds { 15041da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15051da177e4SLinus Torvalds destroy_inodecache(); 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 15081da177e4SLinus Torvalds module_init(init_ufs_fs) 15091da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15101da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1511