11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/ufs/super.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1998 51da177e4SLinus Torvalds * Daniel Pirkl <daniel.pirkl@email.cz> 61da177e4SLinus Torvalds * Charles University, Faculty of Mathematics and Physics 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds /* Derived from 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * linux/fs/ext2/super.c 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994, 1995 141da177e4SLinus Torvalds * Remy Card (card@masi.ibp.fr) 151da177e4SLinus Torvalds * Laboratoire MASI - Institut Blaise Pascal 161da177e4SLinus Torvalds * Universite Pierre et Marie Curie (Paris VI) 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * from 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * linux/fs/minix/inode.c 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds * Big-endian to little-endian byte-swapping/bitmaps by 251da177e4SLinus Torvalds * David S. Miller (davem@caip.rutgers.edu), 1995 261da177e4SLinus Torvalds */ 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds /* 291da177e4SLinus Torvalds * Inspired by 301da177e4SLinus Torvalds * 311da177e4SLinus Torvalds * linux/fs/ufs/super.c 321da177e4SLinus Torvalds * 331da177e4SLinus Torvalds * Copyright (C) 1996 341da177e4SLinus Torvalds * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) 351da177e4SLinus Torvalds * Laboratory for Computer Science Research Computing Facility 361da177e4SLinus Torvalds * Rutgers, The State University of New Jersey 371da177e4SLinus Torvalds * 381da177e4SLinus Torvalds * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 391da177e4SLinus Torvalds * 401da177e4SLinus Torvalds * Kernel module support added on 96/04/26 by 411da177e4SLinus Torvalds * Stefan Reinauer <stepan@home.culture.mipt.ru> 421da177e4SLinus Torvalds * 431da177e4SLinus Torvalds * Module usage counts added on 96/04/29 by 44f762dd68SGertjan van Wingerde * Gertjan van Wingerde <gwingerde@gmail.com> 451da177e4SLinus Torvalds * 461da177e4SLinus Torvalds * Clean swab support on 19970406 by 471da177e4SLinus Torvalds * Francois-Rene Rideau <fare@tunes.org> 481da177e4SLinus Torvalds * 491da177e4SLinus Torvalds * 4.4BSD (FreeBSD) support added on February 1st 1998 by 501da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk> partially based 511da177e4SLinus Torvalds * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. 521da177e4SLinus Torvalds * 531da177e4SLinus Torvalds * NeXTstep support added on February 5th 1998 by 541da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk>. 551da177e4SLinus Torvalds * 561da177e4SLinus Torvalds * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 571da177e4SLinus Torvalds * 581da177e4SLinus Torvalds * HP/UX hfs filesystem support added by 591da177e4SLinus Torvalds * Martin K. Petersen <mkp@mkp.net>, August 1999 601da177e4SLinus Torvalds * 611da177e4SLinus Torvalds * UFS2 (of FreeBSD 5.x) support added by 621da177e4SLinus Torvalds * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 631da177e4SLinus Torvalds * 64cbcae39fSEvgeniy Dushistov * UFS2 write support added by 65cbcae39fSEvgeniy Dushistov * Evgeniy Dushistov <dushistov@mail.ru>, 2007 661da177e4SLinus Torvalds */ 671da177e4SLinus Torvalds 68f3e2a520SAlexey Dobriyan #include <linux/exportfs.h> 691da177e4SLinus Torvalds #include <linux/module.h> 701da177e4SLinus Torvalds #include <linux/bitops.h> 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds #include <stdarg.h> 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds #include <asm/uaccess.h> 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds #include <linux/errno.h> 771da177e4SLinus Torvalds #include <linux/fs.h> 781da177e4SLinus Torvalds #include <linux/slab.h> 791da177e4SLinus Torvalds #include <linux/time.h> 801da177e4SLinus Torvalds #include <linux/stat.h> 811da177e4SLinus Torvalds #include <linux/string.h> 821da177e4SLinus Torvalds #include <linux/blkdev.h> 831da177e4SLinus Torvalds #include <linux/init.h> 841da177e4SLinus Torvalds #include <linux/parser.h> 851da177e4SLinus Torvalds #include <linux/buffer_head.h> 861da177e4SLinus Torvalds #include <linux/vfs.h> 879e8c4273Svignesh babu #include <linux/log2.h> 882a9807c0SEvgeniy Dushistov #include <linux/mount.h> 892a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 901da177e4SLinus Torvalds 91e5420598SMike Frysinger #include "ufs_fs.h" 92bcd6d4ecSChristoph Hellwig #include "ufs.h" 931da177e4SLinus Torvalds #include "swab.h" 941da177e4SLinus Torvalds #include "util.h" 951da177e4SLinus Torvalds 96788257d6SArnd Bergmann void lock_ufs(struct super_block *sb) 97788257d6SArnd Bergmann { 98788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 99788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 100788257d6SArnd Bergmann 101788257d6SArnd Bergmann mutex_lock(&sbi->mutex); 102788257d6SArnd Bergmann sbi->mutex_owner = current; 103788257d6SArnd Bergmann #endif 104788257d6SArnd Bergmann } 105788257d6SArnd Bergmann 106788257d6SArnd Bergmann void unlock_ufs(struct super_block *sb) 107788257d6SArnd Bergmann { 108788257d6SArnd Bergmann #if defined(CONFIG_SMP) || defined (CONFIG_PREEMPT) 109788257d6SArnd Bergmann struct ufs_sb_info *sbi = UFS_SB(sb); 110788257d6SArnd Bergmann 111788257d6SArnd Bergmann sbi->mutex_owner = NULL; 112788257d6SArnd Bergmann mutex_unlock(&sbi->mutex); 113788257d6SArnd Bergmann #endif 114788257d6SArnd Bergmann } 115788257d6SArnd Bergmann 116f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 117f3e2a520SAlexey Dobriyan { 118f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 119f3e2a520SAlexey Dobriyan struct inode *inode; 120f3e2a520SAlexey Dobriyan 121f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 122f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 123f3e2a520SAlexey Dobriyan 124f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 125f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 126f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 127f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 128f3e2a520SAlexey Dobriyan iput(inode); 129f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 130f3e2a520SAlexey Dobriyan } 131f3e2a520SAlexey Dobriyan return inode; 132f3e2a520SAlexey Dobriyan } 133f3e2a520SAlexey Dobriyan 134f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 135f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 136f3e2a520SAlexey Dobriyan { 137f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 138f3e2a520SAlexey Dobriyan } 139f3e2a520SAlexey Dobriyan 140f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 141f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 142f3e2a520SAlexey Dobriyan { 143f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 144f3e2a520SAlexey Dobriyan } 145f3e2a520SAlexey Dobriyan 146f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 147f3e2a520SAlexey Dobriyan { 14826fe5750SLinus Torvalds struct qstr dot_dot = QSTR_INIT("..", 2); 149f3e2a520SAlexey Dobriyan ino_t ino; 150f3e2a520SAlexey Dobriyan 151f3e2a520SAlexey Dobriyan ino = ufs_inode_by_name(child->d_inode, &dot_dot); 152f3e2a520SAlexey Dobriyan if (!ino) 153f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 154f3e2a520SAlexey Dobriyan return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); 155f3e2a520SAlexey Dobriyan } 156f3e2a520SAlexey Dobriyan 157f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 158f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 159f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 160f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 161f3e2a520SAlexey Dobriyan }; 162f3e2a520SAlexey Dobriyan 163abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1641da177e4SLinus Torvalds /* 1651da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1661da177e4SLinus Torvalds */ 1673313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1681da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1691da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1701da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1711da177e4SLinus Torvalds { 1723313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1733313e292SEvgeniy Dushistov 174a9814c5dSFabian Frederick pr_debug("ufs_print_super_stuff\n"); 175a9814c5dSFabian Frederick pr_debug(" magic: 0x%x\n", magic); 1763313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 177a9814c5dSFabian Frederick pr_debug(" fs_size: %llu\n", (unsigned long long) 178647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 179a9814c5dSFabian Frederick pr_debug(" fs_dsize: %llu\n", (unsigned long long) 180647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 181a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", 182647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 183a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", 184647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 185a9814c5dSFabian Frederick pr_debug(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 186a9814c5dSFabian Frederick pr_debug(" fs_sblockloc: %llu\n", (unsigned long long) 187647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 188a9814c5dSFabian Frederick pr_debug(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 189647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 190a9814c5dSFabian Frederick pr_debug(" cs_nbfree(No of free blocks): %llu\n", 191647b7e87SEvgeniy Dushistov (unsigned long long) 192647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 193a9814c5dSFabian Frederick pr_info(" cs_nifree(Num of free inodes): %llu\n", 1943313e292SEvgeniy Dushistov (unsigned long long) 1953313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 196a9814c5dSFabian Frederick pr_info(" cs_nffree(Num of free frags): %llu\n", 1973313e292SEvgeniy Dushistov (unsigned long long) 1983313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 199a9814c5dSFabian Frederick pr_info(" fs_maxsymlinklen: %u\n", 20090b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 201647b7e87SEvgeniy Dushistov } else { 202a9814c5dSFabian Frederick pr_debug(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 203a9814c5dSFabian Frederick pr_debug(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 204a9814c5dSFabian Frederick pr_debug(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 205a9814c5dSFabian Frederick pr_debug(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 206a9814c5dSFabian Frederick pr_debug(" cgoffset: %u\n", 207647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 208a9814c5dSFabian Frederick pr_debug(" ~cgmask: 0x%x\n", 209647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 210a9814c5dSFabian Frederick pr_debug(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 211a9814c5dSFabian Frederick pr_debug(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 212a9814c5dSFabian Frederick pr_debug(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 213a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 214a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 215a9814c5dSFabian Frederick pr_debug(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 216a9814c5dSFabian Frederick pr_debug(" fragshift: %u\n", 217647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 218a9814c5dSFabian Frederick pr_debug(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 219a9814c5dSFabian Frederick pr_debug(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 220a9814c5dSFabian Frederick pr_debug(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 221a9814c5dSFabian Frederick pr_debug(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 222a9814c5dSFabian Frederick pr_debug(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 223a9814c5dSFabian Frederick pr_debug(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 224a9814c5dSFabian Frederick pr_debug(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 225a9814c5dSFabian Frederick pr_debug(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 226a9814c5dSFabian Frederick pr_debug(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 227a9814c5dSFabian Frederick pr_debug(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 228a9814c5dSFabian Frederick pr_debug(" fstodb: %u\n", 229647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 230a9814c5dSFabian Frederick pr_debug(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 231a9814c5dSFabian Frederick pr_debug(" ndir %u\n", 232647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 233a9814c5dSFabian Frederick pr_debug(" nifree %u\n", 234647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 235a9814c5dSFabian Frederick pr_debug(" nbfree %u\n", 236647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 237a9814c5dSFabian Frederick pr_debug(" nffree %u\n", 238647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2391da177e4SLinus Torvalds } 240a9814c5dSFabian Frederick pr_debug("\n"); 2411da177e4SLinus Torvalds } 2421da177e4SLinus Torvalds 2431da177e4SLinus Torvalds /* 2441da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2451da177e4SLinus Torvalds */ 246647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 247647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2481da177e4SLinus Torvalds { 249a9814c5dSFabian Frederick pr_debug("\nufs_print_cylinder_stuff\n"); 250a9814c5dSFabian Frederick pr_debug("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 251a9814c5dSFabian Frederick pr_debug(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 252a9814c5dSFabian Frederick pr_debug(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 253a9814c5dSFabian Frederick pr_debug(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 254a9814c5dSFabian Frederick pr_debug(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 255a9814c5dSFabian Frederick pr_debug(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 256a9814c5dSFabian Frederick pr_debug(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 257a9814c5dSFabian Frederick pr_debug(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 258a9814c5dSFabian Frederick pr_debug(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 259a9814c5dSFabian Frederick pr_debug(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 260a9814c5dSFabian Frederick pr_debug(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 261a9814c5dSFabian Frederick pr_debug(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 262a9814c5dSFabian Frederick pr_debug(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 263a9814c5dSFabian Frederick pr_debug(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 264a9814c5dSFabian Frederick pr_debug(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2651da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2661da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2671da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2681da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 269a9814c5dSFabian Frederick pr_debug(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 270a9814c5dSFabian Frederick pr_debug(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 271a9814c5dSFabian Frederick pr_debug(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 272a9814c5dSFabian Frederick pr_debug(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 273a9814c5dSFabian Frederick pr_debug(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 274a9814c5dSFabian Frederick pr_debug(" clustersumoff %u\n", 275647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 276a9814c5dSFabian Frederick pr_debug(" clusteroff %u\n", 277647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 278a9814c5dSFabian Frederick pr_debug(" nclusterblks %u\n", 279647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 280a9814c5dSFabian Frederick pr_debug("\n"); 2811da177e4SLinus Torvalds } 282647b7e87SEvgeniy Dushistov #else 2833313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 284647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 285abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2861da177e4SLinus Torvalds 287ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2901da177e4SLinus Torvalds const char * fmt, ...) 2911da177e4SLinus Torvalds { 2921da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2931da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2947e1e4167SFabian Frederick struct va_format vaf; 2951da177e4SLinus Torvalds va_list args; 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2987b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3011da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3029695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3039e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3041da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3051da177e4SLinus Torvalds } 3061da177e4SLinus Torvalds va_start(args, fmt); 3077e1e4167SFabian Frederick vaf.fmt = fmt; 3087e1e4167SFabian Frederick vaf.va = &args; 3091da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 3101da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 3117e1e4167SFabian Frederick panic("panic (device %s): %s: %pV\n", 3127e1e4167SFabian Frederick sb->s_id, function, &vaf); 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 3151da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 3161da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 3177e1e4167SFabian Frederick pr_crit("error (device %s): %s: %pV\n", 3187e1e4167SFabian Frederick sb->s_id, function, &vaf); 3191da177e4SLinus Torvalds } 3207e1e4167SFabian Frederick va_end(args); 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds 3231da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3241da177e4SLinus Torvalds const char * fmt, ...) 3251da177e4SLinus Torvalds { 3261da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3271da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3287e1e4167SFabian Frederick struct va_format vaf; 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); 3407e1e4167SFabian Frederick vaf.fmt = fmt; 3417e1e4167SFabian Frederick vaf.va = &args; 3421da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3437e1e4167SFabian Frederick pr_crit("panic (device %s): %s: %pV\n", 3447e1e4167SFabian Frederick sb->s_id, function, &vaf); 3457e1e4167SFabian Frederick va_end(args); 3461da177e4SLinus Torvalds } 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3491da177e4SLinus Torvalds const char * fmt, ...) 3501da177e4SLinus Torvalds { 3517e1e4167SFabian Frederick struct va_format vaf; 3521da177e4SLinus Torvalds va_list args; 3531da177e4SLinus Torvalds 3541da177e4SLinus Torvalds va_start(args, fmt); 3557e1e4167SFabian Frederick vaf.fmt = fmt; 3567e1e4167SFabian Frederick vaf.va = &args; 3577e1e4167SFabian Frederick pr_warn("(device %s): %s: %pV\n", 3587e1e4167SFabian Frederick sb->s_id, function, &vaf); 3591da177e4SLinus Torvalds va_end(args); 3601da177e4SLinus Torvalds } 3611da177e4SLinus Torvalds 3621da177e4SLinus Torvalds enum { 3632a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3642a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3652a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3662a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3672a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3682a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3692a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3702a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3712a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3722a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3732a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3742a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3752a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3762a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3772a9807c0SEvgeniy Dushistov Opt_err 3781da177e4SLinus Torvalds }; 3791da177e4SLinus Torvalds 380a447c093SSteven Whitehouse static const match_table_t tokens = { 3811da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3821da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3831da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 384252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3851da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3861da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3871da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3881da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3891da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3901da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3911da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3922a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3931da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3941da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3951da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3961da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3971da177e4SLinus Torvalds {Opt_err, NULL} 3981da177e4SLinus Torvalds }; 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 4011da177e4SLinus Torvalds { 4021da177e4SLinus Torvalds char * p; 4031da177e4SLinus Torvalds 404abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds if (!options) 4071da177e4SLinus Torvalds return 1; 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 4101da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 4111da177e4SLinus Torvalds int token; 4121da177e4SLinus Torvalds if (!*p) 4131da177e4SLinus Torvalds continue; 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds token = match_token(p, tokens, args); 4161da177e4SLinus Torvalds switch (token) { 4171da177e4SLinus Torvalds case Opt_type_old: 4181da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4191da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4201da177e4SLinus Torvalds break; 4211da177e4SLinus Torvalds case Opt_type_sunx86: 4221da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4231da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4241da177e4SLinus Torvalds break; 4251da177e4SLinus Torvalds case Opt_type_sun: 4261da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4271da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4281da177e4SLinus Torvalds break; 429252e211eSMark Fortescue case Opt_type_sunos: 430252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 431252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 432252e211eSMark Fortescue break; 4331da177e4SLinus Torvalds case Opt_type_44bsd: 4341da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4351da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4361da177e4SLinus Torvalds break; 4371da177e4SLinus Torvalds case Opt_type_ufs2: 4381da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4391da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4401da177e4SLinus Torvalds break; 4411da177e4SLinus Torvalds case Opt_type_hp: 4421da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4431da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4441da177e4SLinus Torvalds break; 4451da177e4SLinus Torvalds case Opt_type_nextstepcd: 4461da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4471da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4481da177e4SLinus Torvalds break; 4491da177e4SLinus Torvalds case Opt_type_nextstep: 4501da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4511da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4521da177e4SLinus Torvalds break; 4531da177e4SLinus Torvalds case Opt_type_openstep: 4541da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4551da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4561da177e4SLinus Torvalds break; 4571da177e4SLinus Torvalds case Opt_onerror_panic: 4581da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4591da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4601da177e4SLinus Torvalds break; 4611da177e4SLinus Torvalds case Opt_onerror_lock: 4621da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4631da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4641da177e4SLinus Torvalds break; 4651da177e4SLinus Torvalds case Opt_onerror_umount: 4661da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4671da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4681da177e4SLinus Torvalds break; 4691da177e4SLinus Torvalds case Opt_onerror_repair: 470de771bdaSFabian Frederick pr_err("Unable to do repair on error, will lock lock instead\n"); 4711da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4721da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4731da177e4SLinus Torvalds break; 4741da177e4SLinus Torvalds default: 475de771bdaSFabian Frederick pr_err("Invalid option: \"%s\" or missing value\n", p); 4761da177e4SLinus Torvalds return 0; 4771da177e4SLinus Torvalds } 4781da177e4SLinus Torvalds } 4791da177e4SLinus Torvalds return 1; 4801da177e4SLinus Torvalds } 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds /* 48325985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 48425985edcSLucas De Marchi * places, and use different data structure for it. 48525985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 486ee3ffd6cSEvgeniy Dushistov */ 487ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 488ee3ffd6cSEvgeniy Dushistov { 489ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 490ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 491ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 492ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 493ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 494ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 495ee3ffd6cSEvgeniy Dushistov 496ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 497ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 498ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 499ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 500ee3ffd6cSEvgeniy Dushistov 501ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 502ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 503ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 504ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 505ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 506ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 507ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 508ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 509ee3ffd6cSEvgeniy Dushistov } else { 510ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 511ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 512ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 513ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 514ee3ffd6cSEvgeniy Dushistov } 515ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 516ee3ffd6cSEvgeniy Dushistov } 517ee3ffd6cSEvgeniy Dushistov 518ee3ffd6cSEvgeniy Dushistov /* 5191da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5201da177e4SLinus Torvalds */ 521e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 522e295cfcbSEvgeniy Dushistov { 5231da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 524647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5251da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5261da177e4SLinus Torvalds unsigned char * base, * space; 5271da177e4SLinus Torvalds unsigned size, blks, i; 5281da177e4SLinus Torvalds 529abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds /* 5321da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5331da177e4SLinus Torvalds * on the device. 5341da177e4SLinus Torvalds */ 5351da177e4SLinus Torvalds size = uspi->s_cssize; 5361da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 537788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5381da177e4SLinus Torvalds if (!base) 5391da177e4SLinus Torvalds goto failed; 540e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5411da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5421da177e4SLinus Torvalds size = uspi->s_bsize; 5431da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5441da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5477b4ee73eSEvgeniy 5481da177e4SLinus Torvalds if (!ubh) 5491da177e4SLinus Torvalds goto failed; 5507b4ee73eSEvgeniy 5511da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5527b4ee73eSEvgeniy 5531da177e4SLinus Torvalds space += size; 5541da177e4SLinus Torvalds ubh_brelse (ubh); 5551da177e4SLinus Torvalds ubh = NULL; 5561da177e4SLinus Torvalds } 5571da177e4SLinus Torvalds 5581da177e4SLinus Torvalds /* 5591da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5601da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5611da177e4SLinus Torvalds */ 562788257d6SArnd Bergmann if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_NOFS))) 5631da177e4SLinus Torvalds goto failed; 5641da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5651da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5661da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5671da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5681da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5691da177e4SLinus Torvalds } 5701da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 571abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5721da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5731da177e4SLinus Torvalds goto failed; 5741da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5751da177e4SLinus Torvalds goto failed; 576647b7e87SEvgeniy Dushistov 5771da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5781da177e4SLinus Torvalds } 5791da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 580788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5811da177e4SLinus Torvalds goto failed; 5821da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5831da177e4SLinus Torvalds } 5841da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 585abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5861da177e4SLinus Torvalds return 1; 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds failed: 589f99d49adSJesper Juhl kfree (base); 5901da177e4SLinus Torvalds if (sbi->s_ucg) { 5911da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 592f99d49adSJesper Juhl if (sbi->s_ucg[i]) 593f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5941da177e4SLinus Torvalds kfree (sbi->s_ucg); 5951da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 596f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5971da177e4SLinus Torvalds } 598abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5991da177e4SLinus Torvalds return 0; 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds /* 603ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 6041da177e4SLinus Torvalds */ 605ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 606ee3ffd6cSEvgeniy Dushistov { 607ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 608ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 609ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 610ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 611ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 612ee3ffd6cSEvgeniy Dushistov 613ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 614ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 615ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 616ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 617ee3ffd6cSEvgeniy Dushistov 618ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 619ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 620ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 621ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 622ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 623ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 624ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 625ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 626ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 627ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 628ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 629ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 630ee3ffd6cSEvgeniy Dushistov } else { 631ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 632ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 633ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 634ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 635ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 636ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 637ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 638ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 639ee3ffd6cSEvgeniy Dushistov } 640ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6413313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 642ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 643ee3ffd6cSEvgeniy Dushistov } 644ee3ffd6cSEvgeniy Dushistov 645ee3ffd6cSEvgeniy Dushistov /** 646ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 647ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 648ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 649ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 650ee3ffd6cSEvgeniy Dushistov */ 651ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 652e295cfcbSEvgeniy Dushistov { 6531da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 654ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6551da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6561da177e4SLinus Torvalds unsigned char * base, * space; 6571da177e4SLinus Torvalds unsigned blks, size, i; 6581da177e4SLinus Torvalds 659ee3ffd6cSEvgeniy Dushistov 660abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6616cfd0148SChristoph Hellwig 662ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6631da177e4SLinus Torvalds size = uspi->s_cssize; 6641da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 665e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6661da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6671da177e4SLinus Torvalds size = uspi->s_bsize; 6681da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6691da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6703313e292SEvgeniy Dushistov 6711da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6723313e292SEvgeniy Dushistov 6731da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6741da177e4SLinus Torvalds space += size; 6751da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6761da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6771da177e4SLinus Torvalds ubh_brelse (ubh); 6781da177e4SLinus Torvalds } 6791da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6801da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6811da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6821da177e4SLinus Torvalds } 6831da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6841da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6851da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6861da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6871da177e4SLinus Torvalds kfree (sbi->s_ucg); 6881da177e4SLinus Torvalds kfree (base); 6896cfd0148SChristoph Hellwig 690abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6911da177e4SLinus Torvalds } 6921da177e4SLinus Torvalds 6937bd54ef7SArtem Bityutskiy static int ufs_sync_fs(struct super_block *sb, int wait) 6947bd54ef7SArtem Bityutskiy { 6957bd54ef7SArtem Bityutskiy struct ufs_sb_private_info * uspi; 6967bd54ef7SArtem Bityutskiy struct ufs_super_block_first * usb1; 6977bd54ef7SArtem Bityutskiy struct ufs_super_block_third * usb3; 6987bd54ef7SArtem Bityutskiy unsigned flags; 6997bd54ef7SArtem Bityutskiy 7007bd54ef7SArtem Bityutskiy lock_ufs(sb); 7017bd54ef7SArtem Bityutskiy 7027bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7037bd54ef7SArtem Bityutskiy 7047bd54ef7SArtem Bityutskiy flags = UFS_SB(sb)->s_flags; 7057bd54ef7SArtem Bityutskiy uspi = UFS_SB(sb)->s_uspi; 7067bd54ef7SArtem Bityutskiy usb1 = ubh_get_usb_first(uspi); 7077bd54ef7SArtem Bityutskiy usb3 = ubh_get_usb_third(uspi); 7087bd54ef7SArtem Bityutskiy 7097bd54ef7SArtem Bityutskiy usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 7107bd54ef7SArtem Bityutskiy if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 7117bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 7127bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 7137bd54ef7SArtem Bityutskiy ufs_set_fs_state(sb, usb1, usb3, 7147bd54ef7SArtem Bityutskiy UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 7157bd54ef7SArtem Bityutskiy ufs_put_cstotal(sb); 7167bd54ef7SArtem Bityutskiy 7177bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7187bd54ef7SArtem Bityutskiy unlock_ufs(sb); 7197bd54ef7SArtem Bityutskiy 7207bd54ef7SArtem Bityutskiy return 0; 7217bd54ef7SArtem Bityutskiy } 7227bd54ef7SArtem Bityutskiy 7239e9ad5f4SArtem Bityutskiy static void delayed_sync_fs(struct work_struct *work) 7247bd54ef7SArtem Bityutskiy { 7259e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi; 7269e9ad5f4SArtem Bityutskiy 7279e9ad5f4SArtem Bityutskiy sbi = container_of(work, struct ufs_sb_info, sync_work.work); 7289e9ad5f4SArtem Bityutskiy 7299e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7309e9ad5f4SArtem Bityutskiy sbi->work_queued = 0; 7319e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7329e9ad5f4SArtem Bityutskiy 7339e9ad5f4SArtem Bityutskiy ufs_sync_fs(sbi->sb, 1); 7349e9ad5f4SArtem Bityutskiy } 7359e9ad5f4SArtem Bityutskiy 7369e9ad5f4SArtem Bityutskiy void ufs_mark_sb_dirty(struct super_block *sb) 7379e9ad5f4SArtem Bityutskiy { 7389e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi = UFS_SB(sb); 7399e9ad5f4SArtem Bityutskiy unsigned long delay; 7409e9ad5f4SArtem Bityutskiy 7419e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7429e9ad5f4SArtem Bityutskiy if (!sbi->work_queued) { 7439e9ad5f4SArtem Bityutskiy delay = msecs_to_jiffies(dirty_writeback_interval * 10); 7449e9ad5f4SArtem Bityutskiy queue_delayed_work(system_long_wq, &sbi->sync_work, delay); 7459e9ad5f4SArtem Bityutskiy sbi->work_queued = 1; 7469e9ad5f4SArtem Bityutskiy } 7479e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7487bd54ef7SArtem Bityutskiy } 7497bd54ef7SArtem Bityutskiy 7507bd54ef7SArtem Bityutskiy static void ufs_put_super(struct super_block *sb) 7517bd54ef7SArtem Bityutskiy { 7527bd54ef7SArtem Bityutskiy struct ufs_sb_info * sbi = UFS_SB(sb); 7537bd54ef7SArtem Bityutskiy 7547bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7557bd54ef7SArtem Bityutskiy 7567bd54ef7SArtem Bityutskiy if (!(sb->s_flags & MS_RDONLY)) 7577bd54ef7SArtem Bityutskiy ufs_put_super_internal(sb); 7589e9ad5f4SArtem Bityutskiy cancel_delayed_work_sync(&sbi->sync_work); 7597bd54ef7SArtem Bityutskiy 7607bd54ef7SArtem Bityutskiy ubh_brelse_uspi (sbi->s_uspi); 7617bd54ef7SArtem Bityutskiy kfree (sbi->s_uspi); 7620244756eSFabian Frederick mutex_destroy(&sbi->mutex); 7637bd54ef7SArtem Bityutskiy kfree (sbi); 7647bd54ef7SArtem Bityutskiy sb->s_fs_info = NULL; 7657bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7667bd54ef7SArtem Bityutskiy return; 7677bd54ef7SArtem Bityutskiy } 7687bd54ef7SArtem Bityutskiy 7691da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 7701da177e4SLinus Torvalds { 7711da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7721da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7731da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7741da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7751da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7761da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7771da177e4SLinus Torvalds struct inode *inode; 7781da177e4SLinus Torvalds unsigned block_size, super_block_size; 7791da177e4SLinus Torvalds unsigned flags; 7807b4ee73eSEvgeniy unsigned super_block_offset; 7819e6766ccSDuane Griffin unsigned maxsymlen; 782b55c460dSDavid Howells int ret = -EINVAL; 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds uspi = NULL; 7851da177e4SLinus Torvalds ubh = NULL; 7861da177e4SLinus Torvalds flags = 0; 7871da177e4SLinus Torvalds 788abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7891da177e4SLinus Torvalds 7900244756eSFabian Frederick #ifndef CONFIG_UFS_FS_WRITE 7910244756eSFabian Frederick if (!(sb->s_flags & MS_RDONLY)) { 792a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 7930244756eSFabian Frederick return -EROFS; 7940244756eSFabian Frederick } 7950244756eSFabian Frederick #endif 7960244756eSFabian Frederick 797f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 7981da177e4SLinus Torvalds if (!sbi) 7991da177e4SLinus Torvalds goto failed_nomem; 8001da177e4SLinus Torvalds sb->s_fs_info = sbi; 8019e9ad5f4SArtem Bityutskiy sbi->sb = sb; 8021da177e4SLinus Torvalds 803abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 8041da177e4SLinus Torvalds 805788257d6SArnd Bergmann mutex_init(&sbi->mutex); 8069e9ad5f4SArtem Bityutskiy spin_lock_init(&sbi->work_lock); 8079e9ad5f4SArtem Bityutskiy INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs); 8081da177e4SLinus Torvalds /* 8091da177e4SLinus Torvalds * Set default mount options 8101da177e4SLinus Torvalds * Parse mount options 8111da177e4SLinus Torvalds */ 8121da177e4SLinus Torvalds sbi->s_mount_opt = 0; 8131da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 8141da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 815a9814c5dSFabian Frederick pr_err("wrong mount options\n"); 8161da177e4SLinus Torvalds goto failed; 8171da177e4SLinus Torvalds } 8181da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 8191da177e4SLinus Torvalds if (!silent) 820a9814c5dSFabian Frederick pr_err("You didn't specify the type of your ufs filesystem\n\n" 8211da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 822c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 8231da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 8241da177e4SLinus Torvalds "default is ufstype=old\n"); 8251da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 8261da177e4SLinus Torvalds } 8271da177e4SLinus Torvalds 828252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 829252e211eSMark Fortescue sbi->s_uspi = uspi; 8301da177e4SLinus Torvalds if (!uspi) 8311da177e4SLinus Torvalds goto failed; 832f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 8337b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 8347b4ee73eSEvgeniy 8351da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 8361da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 8371da177e4SLinus Torvalds the rules */ 8381da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 8391da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 840abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 8411da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8421da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8431da177e4SLinus Torvalds uspi->s_fshift = 9; 8441da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8451da177e4SLinus Torvalds uspi->s_sbbase = 0; 8461da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8471da177e4SLinus Torvalds break; 8481da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 849abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 8507b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 8511da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8521da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8531da177e4SLinus Torvalds uspi->s_fshift = 9; 8541da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8551da177e4SLinus Torvalds uspi->s_sbbase = 0; 8561da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8571da177e4SLinus Torvalds break; 8581da177e4SLinus Torvalds 8591da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 860abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 8611da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8621da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8631da177e4SLinus Torvalds uspi->s_fshift = 10; 8641da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8651da177e4SLinus Torvalds uspi->s_sbbase = 0; 866252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8671da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 8681da177e4SLinus Torvalds break; 8691da177e4SLinus Torvalds 870252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 871d4beaabdSFabian Frederick UFSD("ufstype=sunos\n"); 872252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 873252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 874252e211eSMark Fortescue uspi->s_fshift = 10; 875252e211eSMark Fortescue uspi->s_sbsize = 2048; 876252e211eSMark Fortescue super_block_size = 2048; 877252e211eSMark Fortescue uspi->s_sbbase = 0; 878252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 879252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 880252e211eSMark Fortescue break; 881252e211eSMark Fortescue 8821da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 883abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\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; 889252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8901da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8911da177e4SLinus Torvalds break; 8921da177e4SLinus Torvalds 8931da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 894abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 8951da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8961da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8971da177e4SLinus Torvalds uspi->s_fshift = 10; 8981da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8991da177e4SLinus Torvalds uspi->s_sbbase = 0; 9001da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9011da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9021da177e4SLinus Torvalds if (!silent) 903a9814c5dSFabian Frederick pr_info("ufstype=old is supported read-only\n"); 9041da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds break; 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 909abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 9101da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9111da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9121da177e4SLinus Torvalds uspi->s_fshift = 10; 9131da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9141da177e4SLinus Torvalds uspi->s_sbbase = 0; 9150c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9161da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9171da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9181da177e4SLinus Torvalds if (!silent) 919a9814c5dSFabian Frederick pr_info("ufstype=nextstep is supported read-only\n"); 9201da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9211da177e4SLinus Torvalds } 9221da177e4SLinus Torvalds break; 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 925abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 9261da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 9271da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 9281da177e4SLinus Torvalds uspi->s_fshift = 11; 9291da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9301da177e4SLinus Torvalds uspi->s_sbbase = 0; 9310c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9321da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9331da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9341da177e4SLinus Torvalds if (!silent) 935a9814c5dSFabian Frederick pr_info("ufstype=nextstep-cd is supported read-only\n"); 9361da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9371da177e4SLinus Torvalds } 9381da177e4SLinus Torvalds break; 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 941abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 9421da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9431da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9441da177e4SLinus Torvalds uspi->s_fshift = 10; 9451da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9461da177e4SLinus Torvalds uspi->s_sbbase = 0; 947f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 9481da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 9491da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9501da177e4SLinus Torvalds if (!silent) 951a9814c5dSFabian Frederick pr_info("ufstype=openstep is supported read-only\n"); 9521da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9531da177e4SLinus Torvalds } 9541da177e4SLinus Torvalds break; 9551da177e4SLinus Torvalds 9561da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 957abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 9581da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9591da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9601da177e4SLinus Torvalds uspi->s_fshift = 10; 9611da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9621da177e4SLinus Torvalds uspi->s_sbbase = 0; 9631da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 9641da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 9651da177e4SLinus Torvalds if (!silent) 966a9814c5dSFabian Frederick pr_info("ufstype=hp is supported read-only\n"); 9671da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds break; 9701da177e4SLinus Torvalds default: 9711da177e4SLinus Torvalds if (!silent) 972a9814c5dSFabian Frederick pr_err("unknown ufstype\n"); 9731da177e4SLinus Torvalds goto failed; 9741da177e4SLinus Torvalds } 9751da177e4SLinus Torvalds 9761da177e4SLinus Torvalds again: 9771da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 978de771bdaSFabian Frederick pr_err("failed to set blocksize\n"); 9791da177e4SLinus Torvalds goto failed; 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds 9821da177e4SLinus Torvalds /* 9831da177e4SLinus Torvalds * read ufs super block from device 9841da177e4SLinus Torvalds */ 9857b4ee73eSEvgeniy 9867b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 9877b4ee73eSEvgeniy 9881da177e4SLinus Torvalds if (!ubh) 9891da177e4SLinus Torvalds goto failed; 9901da177e4SLinus Torvalds 9917b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9927b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 9937b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 9941da177e4SLinus Torvalds 995252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 996252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 997252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 998252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 999252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 1000252e211eSMark Fortescue flags |= UFS_ST_SUN; 1001252e211eSMark Fortescue } 1002252e211eSMark Fortescue 10031da177e4SLinus Torvalds /* 10041da177e4SLinus Torvalds * Check ufs magic number 10051da177e4SLinus Torvalds */ 10061da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 10071da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10081da177e4SLinus Torvalds case UFS_MAGIC: 1009d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10101da177e4SLinus Torvalds case UFS2_MAGIC: 10111da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10121da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10131da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10141da177e4SLinus Torvalds goto magic_found; 10151da177e4SLinus Torvalds } 10161da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 10171da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10181da177e4SLinus Torvalds case UFS_MAGIC: 1019d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10201da177e4SLinus Torvalds case UFS2_MAGIC: 10211da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10221da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10231da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10241da177e4SLinus Torvalds goto magic_found; 10251da177e4SLinus Torvalds } 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 10281da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 10291da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 10301da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 10311da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10321da177e4SLinus Torvalds ubh = NULL; 10331da177e4SLinus Torvalds uspi->s_sbbase += 8; 10341da177e4SLinus Torvalds goto again; 10351da177e4SLinus Torvalds } 10361da177e4SLinus Torvalds if (!silent) 103707bc94fdSFabian Frederick pr_err("%s(): bad magic number\n", __func__); 10381da177e4SLinus Torvalds goto failed; 10391da177e4SLinus Torvalds 10401da177e4SLinus Torvalds magic_found: 10411da177e4SLinus Torvalds /* 10421da177e4SLinus Torvalds * Check block and fragment sizes 10431da177e4SLinus Torvalds */ 10441da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 10451da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 10461da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 10471da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10481da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 10491da177e4SLinus Torvalds 10509e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 105107bc94fdSFabian Frederick pr_err("%s(): fragment size %u is not a power of 2\n", 105207bc94fdSFabian Frederick __func__, uspi->s_fsize); 10531da177e4SLinus Torvalds goto failed; 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 105607bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too small\n", 105707bc94fdSFabian Frederick __func__, uspi->s_fsize); 10581da177e4SLinus Torvalds goto failed; 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 106107bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too large\n", 106207bc94fdSFabian Frederick __func__, uspi->s_fsize); 10631da177e4SLinus Torvalds goto failed; 10641da177e4SLinus Torvalds } 10659e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 106607bc94fdSFabian Frederick pr_err("%s(): block size %u is not a power of 2\n", 106707bc94fdSFabian Frederick __func__, uspi->s_bsize); 10681da177e4SLinus Torvalds goto failed; 10691da177e4SLinus Torvalds } 10701da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 107107bc94fdSFabian Frederick pr_err("%s(): block size %u is too small\n", 107207bc94fdSFabian Frederick __func__, uspi->s_bsize); 10731da177e4SLinus Torvalds goto failed; 10741da177e4SLinus Torvalds } 10751da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 107607bc94fdSFabian Frederick pr_err("%s(): too many fragments per block (%u)\n", 107707bc94fdSFabian Frederick __func__, uspi->s_bsize / uspi->s_fsize); 10781da177e4SLinus Torvalds goto failed; 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 10811da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10821da177e4SLinus Torvalds ubh = NULL; 10831da177e4SLinus Torvalds block_size = uspi->s_fsize; 10841da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1085abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 10861da177e4SLinus Torvalds goto again; 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds 1089f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 10903313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 10911da177e4SLinus Torvalds 10921da177e4SLinus Torvalds /* 10931da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 10941da177e4SLinus Torvalds * If not, make it read only. 10951da177e4SLinus Torvalds */ 1096f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 10971da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1098f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1099f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1100f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1101f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 11021da177e4SLinus Torvalds switch(usb1->fs_clean) { 11031da177e4SLinus Torvalds case UFS_FSCLEAN: 1104abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 11051da177e4SLinus Torvalds break; 11061da177e4SLinus Torvalds case UFS_FSSTABLE: 1107abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 11081da177e4SLinus Torvalds break; 1109b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1110b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1111b3a0fd4dSAlex Viskovatoff break; 11121da177e4SLinus Torvalds case UFS_FSOSF1: 1113abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 11141da177e4SLinus Torvalds break; 11151da177e4SLinus Torvalds case UFS_FSACTIVE: 111607bc94fdSFabian Frederick pr_err("%s(): fs is active\n", __func__); 11171da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11181da177e4SLinus Torvalds break; 11191da177e4SLinus Torvalds case UFS_FSBAD: 112007bc94fdSFabian Frederick pr_err("%s(): fs is bad\n", __func__); 11211da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11221da177e4SLinus Torvalds break; 11231da177e4SLinus Torvalds default: 112407bc94fdSFabian Frederick pr_err("%s(): can't grok fs_clean 0x%x\n", 112507bc94fdSFabian Frederick __func__, usb1->fs_clean); 11261da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11271da177e4SLinus Torvalds break; 11281da177e4SLinus Torvalds } 1129ee3ffd6cSEvgeniy Dushistov } else { 113007bc94fdSFabian Frederick pr_err("%s(): fs needs fsck\n", __func__); 11311da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 11321da177e4SLinus Torvalds } 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds /* 11351da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 11361da177e4SLinus Torvalds */ 11371da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1138f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1139123e9cafSChristoph Hellwig 11401da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 11431da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 11441da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 11451da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 11461da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 11471da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 11481da177e4SLinus Torvalds 11491da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1150647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1151647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1152647b7e87SEvgeniy Dushistov } else { 11531da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 11541da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 11551da177e4SLinus Torvalds } 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 11581da177e4SLinus Torvalds /* s_bsize already set */ 11591da177e4SLinus Torvalds /* s_fsize already set */ 11601da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 11611da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 11621da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 11631da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 11641da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 11651da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1166abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1167abf5d15fSEvgeniy Dushistov uspi->s_fshift); 11681da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 11691da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 11701da177e4SLinus Torvalds /* s_sbsize already set */ 11711da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 11721da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 11731da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 11741da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11751da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11761da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11771da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 11781da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 11793313e292SEvgeniy Dushistov 11803313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 11813313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 11823313e292SEvgeniy Dushistov else 11831da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 11843313e292SEvgeniy Dushistov 11851da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 11861da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 11871da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 11881da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 11891da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 11901da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 11911da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1192647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1193647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 11941da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 11951da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 11961da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 11971da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 11981da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 11991da177e4SLinus Torvalds 12001da177e4SLinus Torvalds /* 12011da177e4SLinus Torvalds * Compute another frequently used values 12021da177e4SLinus Torvalds */ 12031da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1204abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 12051da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1206abf5d15fSEvgeniy Dushistov else 12071da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1208abf5d15fSEvgeniy Dushistov 12091da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 12101da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 12111da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 12121da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 12131da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 12141da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 12151da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 12161da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 12171da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 12181da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 12191da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 12201da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 122190b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 122290b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 12231da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1224647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 12251da177e4SLinus Torvalds 12269e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 12279e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 12289e6766ccSDuane Griffin else 12299e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 12309e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 12319e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 12329e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 12339e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 12349e6766ccSDuane Griffin } 12358de52778SAl Viro sb->s_max_links = UFS_LINK_MAX; 12369e6766ccSDuane Griffin 1237b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1238b55c460dSDavid Howells if (IS_ERR(inode)) { 1239b55c460dSDavid Howells ret = PTR_ERR(inode); 12401da177e4SLinus Torvalds goto failed; 1241b55c460dSDavid Howells } 124248fde701SAl Viro sb->s_root = d_make_root(inode); 1243b55c460dSDavid Howells if (!sb->s_root) { 1244b55c460dSDavid Howells ret = -ENOMEM; 124548fde701SAl Viro goto failed; 1246b55c460dSDavid Howells } 12471da177e4SLinus Torvalds 1248ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 12491da177e4SLinus Torvalds /* 12501da177e4SLinus Torvalds * Read cylinder group structures 12511da177e4SLinus Torvalds */ 12521da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 12531da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 12541da177e4SLinus Torvalds goto failed; 12551da177e4SLinus Torvalds 1256abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12571da177e4SLinus Torvalds return 0; 12581da177e4SLinus Torvalds 12591da177e4SLinus Torvalds failed: 12600244756eSFabian Frederick mutex_destroy(&sbi->mutex); 1261f99d49adSJesper Juhl if (ubh) 1262f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1263f99d49adSJesper Juhl kfree (uspi); 1264f99d49adSJesper Juhl kfree(sbi); 12651da177e4SLinus Torvalds sb->s_fs_info = NULL; 1266abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1267b55c460dSDavid Howells return ret; 12681da177e4SLinus Torvalds 12691da177e4SLinus Torvalds failed_nomem: 1270abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 12711da177e4SLinus Torvalds return -ENOMEM; 12721da177e4SLinus Torvalds } 12731da177e4SLinus Torvalds 12741da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 12751da177e4SLinus Torvalds { 12761da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 12771da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 12781da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 12791da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 12801da177e4SLinus Torvalds unsigned flags; 12811da177e4SLinus Torvalds 128202b9984dSTheodore Ts'o sync_filesystem(sb); 1283788257d6SArnd Bergmann lock_ufs(sb); 12841da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12851da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12867b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12877b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12881da177e4SLinus Torvalds 12891da177e4SLinus Torvalds /* 12901da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 12911da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 12921da177e4SLinus Torvalds */ 12931da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 12941da177e4SLinus Torvalds new_mount_opt = 0; 12951da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1296bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1297788257d6SArnd Bergmann unlock_ufs(sb); 12981da177e4SLinus Torvalds return -EINVAL; 1299bbd6851aSAl Viro } 13001da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 13011da177e4SLinus Torvalds new_mount_opt |= ufstype; 1302ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 1303a9814c5dSFabian Frederick pr_err("ufstype can't be changed during remount\n"); 1304788257d6SArnd Bergmann unlock_ufs(sb); 13051da177e4SLinus Torvalds return -EINVAL; 13061da177e4SLinus Torvalds } 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 13091da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1310788257d6SArnd Bergmann unlock_ufs(sb); 13111da177e4SLinus Torvalds return 0; 13121da177e4SLinus Torvalds } 13131da177e4SLinus Torvalds 13141da177e4SLinus Torvalds /* 13151da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13161da177e4SLinus Torvalds */ 13171da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 1318ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 13191da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 13201da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1321252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13221da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13231da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13241da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13259695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13261da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1327ee3ffd6cSEvgeniy Dushistov } else { 13281da177e4SLinus Torvalds /* 13291da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13301da177e4SLinus Torvalds */ 13311da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 1332a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 1333788257d6SArnd Bergmann unlock_ufs(sb); 13341da177e4SLinus Torvalds return -EINVAL; 13351da177e4SLinus Torvalds #else 13361da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1337252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13381da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1339cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1340cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 1341a9814c5dSFabian Frederick pr_err("this ufstype is read-only supported\n"); 1342788257d6SArnd Bergmann unlock_ufs(sb); 13431da177e4SLinus Torvalds return -EINVAL; 13441da177e4SLinus Torvalds } 13451da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 1346a9814c5dSFabian Frederick pr_err("failed during remounting\n"); 1347788257d6SArnd Bergmann unlock_ufs(sb); 13481da177e4SLinus Torvalds return -EPERM; 13491da177e4SLinus Torvalds } 13501da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 13511da177e4SLinus Torvalds #endif 13521da177e4SLinus Torvalds } 13531da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1354788257d6SArnd Bergmann unlock_ufs(sb); 13551da177e4SLinus Torvalds return 0; 13561da177e4SLinus Torvalds } 13571da177e4SLinus Torvalds 135834c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13592a9807c0SEvgeniy Dushistov { 136034c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13612a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1362a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13632a9807c0SEvgeniy Dushistov 13642a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13652a9807c0SEvgeniy Dushistov ++tp; 13662a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13672a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13682a9807c0SEvgeniy Dushistov 13692a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13702a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13712a9807c0SEvgeniy Dushistov ++tp; 13722a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13732a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13742a9807c0SEvgeniy Dushistov 13752a9807c0SEvgeniy Dushistov return 0; 13762a9807c0SEvgeniy Dushistov } 13772a9807c0SEvgeniy Dushistov 1378726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 13791da177e4SLinus Torvalds { 1380726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1381647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1382647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 1383647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 138441d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 13851da177e4SLinus Torvalds 1386788257d6SArnd Bergmann lock_ufs(sb); 13871da177e4SLinus Torvalds 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 144376ee4735SFabian Frederick static int __init 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 { 14578c0a8537SKirill A. Shutemov /* 14588c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 14598c0a8537SKirill A. Shutemov * destroy cache. 14608c0a8537SKirill A. Shutemov */ 14618c0a8537SKirill A. Shutemov rcu_barrier(); 14621a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14631da177e4SLinus Torvalds } 14641da177e4SLinus Torvalds 1465ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14661da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 14671da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 14681da177e4SLinus Torvalds .write_inode = ufs_write_inode, 146958e8268cSAl Viro .evict_inode = ufs_evict_inode, 14701da177e4SLinus Torvalds .put_super = ufs_put_super, 14718c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14721da177e4SLinus Torvalds .statfs = ufs_statfs, 14731da177e4SLinus Torvalds .remount_fs = ufs_remount, 14742a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 14751da177e4SLinus Torvalds }; 14761da177e4SLinus Torvalds 1477152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1478152a0836SAl Viro int flags, const char *dev_name, void *data) 14791da177e4SLinus Torvalds { 1480152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 14811da177e4SLinus Torvalds } 14821da177e4SLinus Torvalds 14831da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 14841da177e4SLinus Torvalds .owner = THIS_MODULE, 14851da177e4SLinus Torvalds .name = "ufs", 1486152a0836SAl Viro .mount = ufs_mount, 14871da177e4SLinus Torvalds .kill_sb = kill_block_super, 14881da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 14891da177e4SLinus Torvalds }; 14907f78e035SEric W. Biederman MODULE_ALIAS_FS("ufs"); 14911da177e4SLinus Torvalds 14921da177e4SLinus Torvalds static int __init init_ufs_fs(void) 14931da177e4SLinus Torvalds { 14941da177e4SLinus Torvalds int err = init_inodecache(); 14951da177e4SLinus Torvalds if (err) 14961da177e4SLinus Torvalds goto out1; 14971da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 14981da177e4SLinus Torvalds if (err) 14991da177e4SLinus Torvalds goto out; 15001da177e4SLinus Torvalds return 0; 15011da177e4SLinus Torvalds out: 15021da177e4SLinus Torvalds destroy_inodecache(); 15031da177e4SLinus Torvalds out1: 15041da177e4SLinus Torvalds return err; 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 15071da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15081da177e4SLinus Torvalds { 15091da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15101da177e4SLinus Torvalds destroy_inodecache(); 15111da177e4SLinus Torvalds } 15121da177e4SLinus Torvalds 15131da177e4SLinus Torvalds module_init(init_ufs_fs) 15141da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15151da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1516