109c434b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/fs/ufs/super.c 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 1998 61da177e4SLinus Torvalds * Daniel Pirkl <daniel.pirkl@email.cz> 71da177e4SLinus Torvalds * Charles University, Faculty of Mathematics and Physics 81da177e4SLinus Torvalds */ 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds /* Derived from 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * linux/fs/ext2/super.c 131da177e4SLinus Torvalds * 141da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994, 1995 151da177e4SLinus Torvalds * Remy Card (card@masi.ibp.fr) 161da177e4SLinus Torvalds * Laboratoire MASI - Institut Blaise Pascal 171da177e4SLinus Torvalds * Universite Pierre et Marie Curie (Paris VI) 181da177e4SLinus Torvalds * 191da177e4SLinus Torvalds * from 201da177e4SLinus Torvalds * 211da177e4SLinus Torvalds * linux/fs/minix/inode.c 221da177e4SLinus Torvalds * 231da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * Big-endian to little-endian byte-swapping/bitmaps by 261da177e4SLinus Torvalds * David S. Miller (davem@caip.rutgers.edu), 1995 271da177e4SLinus Torvalds */ 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds /* 301da177e4SLinus Torvalds * Inspired by 311da177e4SLinus Torvalds * 321da177e4SLinus Torvalds * linux/fs/ufs/super.c 331da177e4SLinus Torvalds * 341da177e4SLinus Torvalds * Copyright (C) 1996 351da177e4SLinus Torvalds * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) 361da177e4SLinus Torvalds * Laboratory for Computer Science Research Computing Facility 371da177e4SLinus Torvalds * Rutgers, The State University of New Jersey 381da177e4SLinus Torvalds * 391da177e4SLinus Torvalds * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 401da177e4SLinus Torvalds * 411da177e4SLinus Torvalds * Kernel module support added on 96/04/26 by 421da177e4SLinus Torvalds * Stefan Reinauer <stepan@home.culture.mipt.ru> 431da177e4SLinus Torvalds * 441da177e4SLinus Torvalds * Module usage counts added on 96/04/29 by 45f762dd68SGertjan van Wingerde * Gertjan van Wingerde <gwingerde@gmail.com> 461da177e4SLinus Torvalds * 471da177e4SLinus Torvalds * Clean swab support on 19970406 by 481da177e4SLinus Torvalds * Francois-Rene Rideau <fare@tunes.org> 491da177e4SLinus Torvalds * 501da177e4SLinus Torvalds * 4.4BSD (FreeBSD) support added on February 1st 1998 by 511da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk> partially based 521da177e4SLinus Torvalds * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. 531da177e4SLinus Torvalds * 541da177e4SLinus Torvalds * NeXTstep support added on February 5th 1998 by 551da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk>. 561da177e4SLinus Torvalds * 571da177e4SLinus Torvalds * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 581da177e4SLinus Torvalds * 591da177e4SLinus Torvalds * HP/UX hfs filesystem support added by 601da177e4SLinus Torvalds * Martin K. Petersen <mkp@mkp.net>, August 1999 611da177e4SLinus Torvalds * 621da177e4SLinus Torvalds * UFS2 (of FreeBSD 5.x) support added by 631da177e4SLinus Torvalds * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 641da177e4SLinus Torvalds * 65cbcae39fSEvgeniy Dushistov * UFS2 write support added by 66cbcae39fSEvgeniy Dushistov * Evgeniy Dushistov <dushistov@mail.ru>, 2007 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 757c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds #include <linux/errno.h> 781da177e4SLinus Torvalds #include <linux/fs.h> 791da177e4SLinus Torvalds #include <linux/slab.h> 801da177e4SLinus Torvalds #include <linux/time.h> 811da177e4SLinus Torvalds #include <linux/stat.h> 821da177e4SLinus Torvalds #include <linux/string.h> 831da177e4SLinus Torvalds #include <linux/blkdev.h> 8466114cadSTejun Heo #include <linux/backing-dev.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> 92bb8c2d66SJeff Layton #include <linux/iversion.h> 931da177e4SLinus Torvalds 94e5420598SMike Frysinger #include "ufs_fs.h" 95bcd6d4ecSChristoph Hellwig #include "ufs.h" 961da177e4SLinus Torvalds #include "swab.h" 971da177e4SLinus Torvalds #include "util.h" 981da177e4SLinus Torvalds 99f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 100f3e2a520SAlexey Dobriyan { 101f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 102f3e2a520SAlexey Dobriyan struct inode *inode; 103f3e2a520SAlexey Dobriyan 10488b2e9b0SColin Ian King if (ino < UFS_ROOTINO || ino > (u64)uspi->s_ncg * uspi->s_ipg) 105f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 106f3e2a520SAlexey Dobriyan 107f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 108f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 109f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 110f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 111f3e2a520SAlexey Dobriyan iput(inode); 112f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 113f3e2a520SAlexey Dobriyan } 114f3e2a520SAlexey Dobriyan return inode; 115f3e2a520SAlexey Dobriyan } 116f3e2a520SAlexey Dobriyan 117f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 118f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 119f3e2a520SAlexey Dobriyan { 120f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 121f3e2a520SAlexey Dobriyan } 122f3e2a520SAlexey Dobriyan 123f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 124f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 125f3e2a520SAlexey Dobriyan { 126f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 127f3e2a520SAlexey Dobriyan } 128f3e2a520SAlexey Dobriyan 129f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 130f3e2a520SAlexey Dobriyan { 13126fe5750SLinus Torvalds struct qstr dot_dot = QSTR_INIT("..", 2); 132f3e2a520SAlexey Dobriyan ino_t ino; 133f3e2a520SAlexey Dobriyan 1342b0143b5SDavid Howells ino = ufs_inode_by_name(d_inode(child), &dot_dot); 135f3e2a520SAlexey Dobriyan if (!ino) 136f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 137fc64005cSAl Viro return d_obtain_alias(ufs_iget(child->d_sb, ino)); 138f3e2a520SAlexey Dobriyan } 139f3e2a520SAlexey Dobriyan 140f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 141f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 142f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 143f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 144f3e2a520SAlexey Dobriyan }; 145f3e2a520SAlexey Dobriyan 146abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1471da177e4SLinus Torvalds /* 1481da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1491da177e4SLinus Torvalds */ 1503313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1511da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1521da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1531da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1541da177e4SLinus Torvalds { 1553313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1563313e292SEvgeniy Dushistov 157a9814c5dSFabian Frederick pr_debug("ufs_print_super_stuff\n"); 158a9814c5dSFabian Frederick pr_debug(" magic: 0x%x\n", magic); 1593313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 160a9814c5dSFabian Frederick pr_debug(" fs_size: %llu\n", (unsigned long long) 161647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 162a9814c5dSFabian Frederick pr_debug(" fs_dsize: %llu\n", (unsigned long long) 163647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 164a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", 165647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 166a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", 167647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 168a9814c5dSFabian Frederick pr_debug(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 169a9814c5dSFabian Frederick pr_debug(" fs_sblockloc: %llu\n", (unsigned long long) 170647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 171a9814c5dSFabian Frederick pr_debug(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 172647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 173a9814c5dSFabian Frederick pr_debug(" cs_nbfree(No of free blocks): %llu\n", 174647b7e87SEvgeniy Dushistov (unsigned long long) 175647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 176a9814c5dSFabian Frederick pr_info(" cs_nifree(Num of free inodes): %llu\n", 1773313e292SEvgeniy Dushistov (unsigned long long) 1783313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 179a9814c5dSFabian Frederick pr_info(" cs_nffree(Num of free frags): %llu\n", 1803313e292SEvgeniy Dushistov (unsigned long long) 1813313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 182a9814c5dSFabian Frederick pr_info(" fs_maxsymlinklen: %u\n", 18390b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 184647b7e87SEvgeniy Dushistov } else { 185a9814c5dSFabian Frederick pr_debug(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 186a9814c5dSFabian Frederick pr_debug(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 187a9814c5dSFabian Frederick pr_debug(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 188a9814c5dSFabian Frederick pr_debug(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 189a9814c5dSFabian Frederick pr_debug(" cgoffset: %u\n", 190647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 191a9814c5dSFabian Frederick pr_debug(" ~cgmask: 0x%x\n", 192647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 193a9814c5dSFabian Frederick pr_debug(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 194a9814c5dSFabian Frederick pr_debug(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 195a9814c5dSFabian Frederick pr_debug(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 196a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 197a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 198a9814c5dSFabian Frederick pr_debug(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 199a9814c5dSFabian Frederick pr_debug(" fragshift: %u\n", 200647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 201a9814c5dSFabian Frederick pr_debug(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 202a9814c5dSFabian Frederick pr_debug(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 203a9814c5dSFabian Frederick pr_debug(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 204a9814c5dSFabian Frederick pr_debug(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 205a9814c5dSFabian Frederick pr_debug(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 206a9814c5dSFabian Frederick pr_debug(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 207a9814c5dSFabian Frederick pr_debug(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 208a9814c5dSFabian Frederick pr_debug(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 209a9814c5dSFabian Frederick pr_debug(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 210a9814c5dSFabian Frederick pr_debug(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 211a9814c5dSFabian Frederick pr_debug(" fstodb: %u\n", 212647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 213a9814c5dSFabian Frederick pr_debug(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 214a9814c5dSFabian Frederick pr_debug(" ndir %u\n", 215647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 216a9814c5dSFabian Frederick pr_debug(" nifree %u\n", 217647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 218a9814c5dSFabian Frederick pr_debug(" nbfree %u\n", 219647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 220a9814c5dSFabian Frederick pr_debug(" nffree %u\n", 221647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2221da177e4SLinus Torvalds } 223a9814c5dSFabian Frederick pr_debug("\n"); 2241da177e4SLinus Torvalds } 2251da177e4SLinus Torvalds 2261da177e4SLinus Torvalds /* 2271da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2281da177e4SLinus Torvalds */ 229647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 230647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2311da177e4SLinus Torvalds { 232a9814c5dSFabian Frederick pr_debug("\nufs_print_cylinder_stuff\n"); 233a9814c5dSFabian Frederick pr_debug("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 234a9814c5dSFabian Frederick pr_debug(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 235a9814c5dSFabian Frederick pr_debug(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 236a9814c5dSFabian Frederick pr_debug(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 237a9814c5dSFabian Frederick pr_debug(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 238a9814c5dSFabian Frederick pr_debug(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 239a9814c5dSFabian Frederick pr_debug(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 240a9814c5dSFabian Frederick pr_debug(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 241a9814c5dSFabian Frederick pr_debug(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 242a9814c5dSFabian Frederick pr_debug(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 243a9814c5dSFabian Frederick pr_debug(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 244a9814c5dSFabian Frederick pr_debug(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 245a9814c5dSFabian Frederick pr_debug(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 246a9814c5dSFabian Frederick pr_debug(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 247a9814c5dSFabian Frederick pr_debug(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2481da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2491da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2501da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2511da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 252a9814c5dSFabian Frederick pr_debug(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 253a9814c5dSFabian Frederick pr_debug(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 254a9814c5dSFabian Frederick pr_debug(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 255a9814c5dSFabian Frederick pr_debug(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 256a9814c5dSFabian Frederick pr_debug(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 257a9814c5dSFabian Frederick pr_debug(" clustersumoff %u\n", 258647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 259a9814c5dSFabian Frederick pr_debug(" clusteroff %u\n", 260647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 261a9814c5dSFabian Frederick pr_debug(" nclusterblks %u\n", 262647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 263a9814c5dSFabian Frederick pr_debug("\n"); 2641da177e4SLinus Torvalds } 265647b7e87SEvgeniy Dushistov #else 2663313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 267647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 268abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2691da177e4SLinus Torvalds 270ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2731da177e4SLinus Torvalds const char * fmt, ...) 2741da177e4SLinus Torvalds { 2751da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2761da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2777e1e4167SFabian Frederick struct va_format vaf; 2781da177e4SLinus Torvalds va_list args; 2791da177e4SLinus Torvalds 2801da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2817b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2821da177e4SLinus Torvalds 283bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 2841da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2859695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2869e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 2871751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2881da177e4SLinus Torvalds } 2891da177e4SLinus Torvalds va_start(args, fmt); 2907e1e4167SFabian Frederick vaf.fmt = fmt; 2917e1e4167SFabian Frederick vaf.va = &args; 2921da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2931da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2947e1e4167SFabian Frederick panic("panic (device %s): %s: %pV\n", 2957e1e4167SFabian Frederick sb->s_id, function, &vaf); 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 2981da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 2991da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 3007e1e4167SFabian Frederick pr_crit("error (device %s): %s: %pV\n", 3017e1e4167SFabian Frederick sb->s_id, function, &vaf); 3021da177e4SLinus Torvalds } 3037e1e4167SFabian Frederick va_end(args); 3041da177e4SLinus Torvalds } 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3071da177e4SLinus Torvalds const char * fmt, ...) 3081da177e4SLinus Torvalds { 3091da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3101da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3117e1e4167SFabian Frederick struct va_format vaf; 3121da177e4SLinus Torvalds va_list args; 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3157b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3161da177e4SLinus Torvalds 317bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 3181da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3199695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3209e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds va_start(args, fmt); 3237e1e4167SFabian Frederick vaf.fmt = fmt; 3247e1e4167SFabian Frederick vaf.va = &args; 3251751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 3267e1e4167SFabian Frederick pr_crit("panic (device %s): %s: %pV\n", 3277e1e4167SFabian Frederick sb->s_id, function, &vaf); 3287e1e4167SFabian Frederick va_end(args); 3291da177e4SLinus Torvalds } 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3321da177e4SLinus Torvalds const char * fmt, ...) 3331da177e4SLinus Torvalds { 3347e1e4167SFabian Frederick struct va_format vaf; 3351da177e4SLinus Torvalds va_list args; 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds va_start(args, fmt); 3387e1e4167SFabian Frederick vaf.fmt = fmt; 3397e1e4167SFabian Frederick vaf.va = &args; 3407e1e4167SFabian Frederick pr_warn("(device %s): %s: %pV\n", 3417e1e4167SFabian Frederick sb->s_id, function, &vaf); 3421da177e4SLinus Torvalds va_end(args); 3431da177e4SLinus Torvalds } 3441da177e4SLinus Torvalds 3451da177e4SLinus Torvalds enum { 3462a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3472a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3482a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3492a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3502a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3512a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3522a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3532a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3542a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3552a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3562a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3572a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3582a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3592a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3602a9807c0SEvgeniy Dushistov Opt_err 3611da177e4SLinus Torvalds }; 3621da177e4SLinus Torvalds 363a447c093SSteven Whitehouse static const match_table_t tokens = { 3641da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3651da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3661da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 367252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3681da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3691da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3701da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3711da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3721da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3731da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3741da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3752a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3761da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3771da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3781da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3791da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3801da177e4SLinus Torvalds {Opt_err, NULL} 3811da177e4SLinus Torvalds }; 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3841da177e4SLinus Torvalds { 3851da177e4SLinus Torvalds char * p; 3861da177e4SLinus Torvalds 387abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds if (!options) 3901da177e4SLinus Torvalds return 1; 3911da177e4SLinus Torvalds 3921da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3931da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3941da177e4SLinus Torvalds int token; 3951da177e4SLinus Torvalds if (!*p) 3961da177e4SLinus Torvalds continue; 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds token = match_token(p, tokens, args); 3991da177e4SLinus Torvalds switch (token) { 4001da177e4SLinus Torvalds case Opt_type_old: 4011da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4021da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4031da177e4SLinus Torvalds break; 4041da177e4SLinus Torvalds case Opt_type_sunx86: 4051da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4061da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4071da177e4SLinus Torvalds break; 4081da177e4SLinus Torvalds case Opt_type_sun: 4091da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4101da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4111da177e4SLinus Torvalds break; 412252e211eSMark Fortescue case Opt_type_sunos: 413252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 414252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 415252e211eSMark Fortescue break; 4161da177e4SLinus Torvalds case Opt_type_44bsd: 4171da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4181da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4191da177e4SLinus Torvalds break; 4201da177e4SLinus Torvalds case Opt_type_ufs2: 4211da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4221da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4231da177e4SLinus Torvalds break; 4241da177e4SLinus Torvalds case Opt_type_hp: 4251da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4261da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4271da177e4SLinus Torvalds break; 4281da177e4SLinus Torvalds case Opt_type_nextstepcd: 4291da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4301da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4311da177e4SLinus Torvalds break; 4321da177e4SLinus Torvalds case Opt_type_nextstep: 4331da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4341da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4351da177e4SLinus Torvalds break; 4361da177e4SLinus Torvalds case Opt_type_openstep: 4371da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4381da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4391da177e4SLinus Torvalds break; 4401da177e4SLinus Torvalds case Opt_onerror_panic: 4411da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4421da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4431da177e4SLinus Torvalds break; 4441da177e4SLinus Torvalds case Opt_onerror_lock: 4451da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4461da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4471da177e4SLinus Torvalds break; 4481da177e4SLinus Torvalds case Opt_onerror_umount: 4491da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4501da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4511da177e4SLinus Torvalds break; 4521da177e4SLinus Torvalds case Opt_onerror_repair: 453de771bdaSFabian Frederick pr_err("Unable to do repair on error, will lock lock instead\n"); 4541da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4551da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4561da177e4SLinus Torvalds break; 4571da177e4SLinus Torvalds default: 458de771bdaSFabian Frederick pr_err("Invalid option: \"%s\" or missing value\n", p); 4591da177e4SLinus Torvalds return 0; 4601da177e4SLinus Torvalds } 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds return 1; 4631da177e4SLinus Torvalds } 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds /* 46625985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 46725985edcSLucas De Marchi * places, and use different data structure for it. 46825985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 469ee3ffd6cSEvgeniy Dushistov */ 470ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 471ee3ffd6cSEvgeniy Dushistov { 472ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 473ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 474ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 475ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 476ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 477ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 478ee3ffd6cSEvgeniy Dushistov 479ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 480ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 481ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 482ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 483ee3ffd6cSEvgeniy Dushistov 484ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 48596ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) || 486ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 487ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 488ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 489ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 490ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 491ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 492ee3ffd6cSEvgeniy Dushistov } else { 493ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 494ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 495ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 496ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 497ee3ffd6cSEvgeniy Dushistov } 498ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 499ee3ffd6cSEvgeniy Dushistov } 500ee3ffd6cSEvgeniy Dushistov 501ee3ffd6cSEvgeniy Dushistov /* 5021da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5031da177e4SLinus Torvalds */ 504e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 505e295cfcbSEvgeniy Dushistov { 5061da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 507647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5081da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5091da177e4SLinus Torvalds unsigned char * base, * space; 5101da177e4SLinus Torvalds unsigned size, blks, i; 5111da177e4SLinus Torvalds 512abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5131da177e4SLinus Torvalds 5141da177e4SLinus Torvalds /* 5151da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5161da177e4SLinus Torvalds * on the device. 5171da177e4SLinus Torvalds */ 5181da177e4SLinus Torvalds size = uspi->s_cssize; 5191da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 520788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5211da177e4SLinus Torvalds if (!base) 5221da177e4SLinus Torvalds goto failed; 523e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5241da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5251da177e4SLinus Torvalds size = uspi->s_bsize; 5261da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5271da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5281da177e4SLinus Torvalds 5291da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5307b4ee73eSEvgeniy 5311da177e4SLinus Torvalds if (!ubh) 5321da177e4SLinus Torvalds goto failed; 5337b4ee73eSEvgeniy 5341da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5357b4ee73eSEvgeniy 5361da177e4SLinus Torvalds space += size; 5371da177e4SLinus Torvalds ubh_brelse (ubh); 5381da177e4SLinus Torvalds ubh = NULL; 5391da177e4SLinus Torvalds } 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds /* 5421da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5431da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5441da177e4SLinus Torvalds */ 5456da2ec56SKees Cook sbi->s_ucg = kmalloc_array(uspi->s_ncg, sizeof(struct buffer_head *), 5466da2ec56SKees Cook GFP_NOFS); 5476da2ec56SKees Cook if (!sbi->s_ucg) 5481da177e4SLinus Torvalds goto failed; 5491da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5501da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5511da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5521da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5531da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5541da177e4SLinus Torvalds } 5551da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 556abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5571da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5581da177e4SLinus Torvalds goto failed; 5591da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5601da177e4SLinus Torvalds goto failed; 561647b7e87SEvgeniy Dushistov 5621da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5631da177e4SLinus Torvalds } 5641da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 565788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5661da177e4SLinus Torvalds goto failed; 5671da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5681da177e4SLinus Torvalds } 5691da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 570abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5711da177e4SLinus Torvalds return 1; 5721da177e4SLinus Torvalds 5731da177e4SLinus Torvalds failed: 574f99d49adSJesper Juhl kfree (base); 5751da177e4SLinus Torvalds if (sbi->s_ucg) { 5761da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 577f99d49adSJesper Juhl if (sbi->s_ucg[i]) 578f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5791da177e4SLinus Torvalds kfree (sbi->s_ucg); 5801da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 581f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5821da177e4SLinus Torvalds } 583abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5841da177e4SLinus Torvalds return 0; 5851da177e4SLinus Torvalds } 5861da177e4SLinus Torvalds 5871da177e4SLinus Torvalds /* 588ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5891da177e4SLinus Torvalds */ 590ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 591ee3ffd6cSEvgeniy Dushistov { 592ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 593ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 594ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 595ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 596ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 597ee3ffd6cSEvgeniy Dushistov 598ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 599ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 600ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 601ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 602ee3ffd6cSEvgeniy Dushistov 60396ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_UFS2) { 604ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 605ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 606ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 607ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 608ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 609ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 610ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 611ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 612ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 61396ecff14SAl Viro goto out; 614ee3ffd6cSEvgeniy Dushistov } 61596ecff14SAl Viro 61696ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_44BSD && 61796ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) { 61896ecff14SAl Viro /* store stats in both old and new places */ 61996ecff14SAl Viro usb2->fs_un.fs_u2.cs_ndir = 62096ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 62196ecff14SAl Viro usb2->fs_un.fs_u2.cs_nbfree = 62296ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 62396ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nifree = 62496ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 62596ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nffree = 62696ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 62796ecff14SAl Viro } 62896ecff14SAl Viro usb1->fs_cstotal.cs_ndir = cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 62996ecff14SAl Viro usb1->fs_cstotal.cs_nbfree = cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 63096ecff14SAl Viro usb1->fs_cstotal.cs_nifree = cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 63196ecff14SAl Viro usb1->fs_cstotal.cs_nffree = cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 63296ecff14SAl Viro out: 633ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6343313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 635ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 636ee3ffd6cSEvgeniy Dushistov } 637ee3ffd6cSEvgeniy Dushistov 638ee3ffd6cSEvgeniy Dushistov /** 639ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 640ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 641ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 642ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 643ee3ffd6cSEvgeniy Dushistov */ 644ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 645e295cfcbSEvgeniy Dushistov { 6461da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 647ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6481da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6491da177e4SLinus Torvalds unsigned char * base, * space; 6501da177e4SLinus Torvalds unsigned blks, size, i; 6511da177e4SLinus Torvalds 652ee3ffd6cSEvgeniy Dushistov 653abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6546cfd0148SChristoph Hellwig 655ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6561da177e4SLinus Torvalds size = uspi->s_cssize; 6571da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 658e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6591da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6601da177e4SLinus Torvalds size = uspi->s_bsize; 6611da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6621da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6633313e292SEvgeniy Dushistov 6641da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6653313e292SEvgeniy Dushistov 6661da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6671da177e4SLinus Torvalds space += size; 6681da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6691da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6701da177e4SLinus Torvalds ubh_brelse (ubh); 6711da177e4SLinus Torvalds } 6721da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6731da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6741da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6751da177e4SLinus Torvalds } 6761da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6771da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6781da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6791da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6801da177e4SLinus Torvalds kfree (sbi->s_ucg); 6811da177e4SLinus Torvalds kfree (base); 6826cfd0148SChristoph Hellwig 683abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6841da177e4SLinus Torvalds } 6851da177e4SLinus Torvalds 6867bd54ef7SArtem Bityutskiy static int ufs_sync_fs(struct super_block *sb, int wait) 6877bd54ef7SArtem Bityutskiy { 6887bd54ef7SArtem Bityutskiy struct ufs_sb_private_info * uspi; 6897bd54ef7SArtem Bityutskiy struct ufs_super_block_first * usb1; 6907bd54ef7SArtem Bityutskiy struct ufs_super_block_third * usb3; 6917bd54ef7SArtem Bityutskiy unsigned flags; 6927bd54ef7SArtem Bityutskiy 693cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 6947bd54ef7SArtem Bityutskiy 6957bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 6967bd54ef7SArtem Bityutskiy 6977bd54ef7SArtem Bityutskiy flags = UFS_SB(sb)->s_flags; 6987bd54ef7SArtem Bityutskiy uspi = UFS_SB(sb)->s_uspi; 6997bd54ef7SArtem Bityutskiy usb1 = ubh_get_usb_first(uspi); 7007bd54ef7SArtem Bityutskiy usb3 = ubh_get_usb_third(uspi); 7017bd54ef7SArtem Bityutskiy 702a3fda0ffSArnd Bergmann usb1->fs_time = ufs_get_seconds(sb); 7037bd54ef7SArtem Bityutskiy if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 7047bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 7057bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 7067bd54ef7SArtem Bityutskiy ufs_set_fs_state(sb, usb1, usb3, 7077bd54ef7SArtem Bityutskiy UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 7087bd54ef7SArtem Bityutskiy ufs_put_cstotal(sb); 7097bd54ef7SArtem Bityutskiy 7107bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 711cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 7127bd54ef7SArtem Bityutskiy 7137bd54ef7SArtem Bityutskiy return 0; 7147bd54ef7SArtem Bityutskiy } 7157bd54ef7SArtem Bityutskiy 7169e9ad5f4SArtem Bityutskiy static void delayed_sync_fs(struct work_struct *work) 7177bd54ef7SArtem Bityutskiy { 7189e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi; 7199e9ad5f4SArtem Bityutskiy 7209e9ad5f4SArtem Bityutskiy sbi = container_of(work, struct ufs_sb_info, sync_work.work); 7219e9ad5f4SArtem Bityutskiy 7229e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7239e9ad5f4SArtem Bityutskiy sbi->work_queued = 0; 7249e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7259e9ad5f4SArtem Bityutskiy 7269e9ad5f4SArtem Bityutskiy ufs_sync_fs(sbi->sb, 1); 7279e9ad5f4SArtem Bityutskiy } 7289e9ad5f4SArtem Bityutskiy 7299e9ad5f4SArtem Bityutskiy void ufs_mark_sb_dirty(struct super_block *sb) 7309e9ad5f4SArtem Bityutskiy { 7319e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi = UFS_SB(sb); 7329e9ad5f4SArtem Bityutskiy unsigned long delay; 7339e9ad5f4SArtem Bityutskiy 7349e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7359e9ad5f4SArtem Bityutskiy if (!sbi->work_queued) { 7369e9ad5f4SArtem Bityutskiy delay = msecs_to_jiffies(dirty_writeback_interval * 10); 7379e9ad5f4SArtem Bityutskiy queue_delayed_work(system_long_wq, &sbi->sync_work, delay); 7389e9ad5f4SArtem Bityutskiy sbi->work_queued = 1; 7399e9ad5f4SArtem Bityutskiy } 7409e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7417bd54ef7SArtem Bityutskiy } 7427bd54ef7SArtem Bityutskiy 7437bd54ef7SArtem Bityutskiy static void ufs_put_super(struct super_block *sb) 7447bd54ef7SArtem Bityutskiy { 7457bd54ef7SArtem Bityutskiy struct ufs_sb_info * sbi = UFS_SB(sb); 7467bd54ef7SArtem Bityutskiy 7477bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7487bd54ef7SArtem Bityutskiy 749bc98a42cSDavid Howells if (!sb_rdonly(sb)) 7507bd54ef7SArtem Bityutskiy ufs_put_super_internal(sb); 7519e9ad5f4SArtem Bityutskiy cancel_delayed_work_sync(&sbi->sync_work); 7527bd54ef7SArtem Bityutskiy 7537bd54ef7SArtem Bityutskiy ubh_brelse_uspi (sbi->s_uspi); 7547bd54ef7SArtem Bityutskiy kfree (sbi->s_uspi); 7557bd54ef7SArtem Bityutskiy kfree (sbi); 7567bd54ef7SArtem Bityutskiy sb->s_fs_info = NULL; 7577bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7587bd54ef7SArtem Bityutskiy return; 7597bd54ef7SArtem Bityutskiy } 7607bd54ef7SArtem Bityutskiy 7616b0d144fSAl Viro static u64 ufs_max_bytes(struct super_block *sb) 7626b0d144fSAl Viro { 7636b0d144fSAl Viro struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 7646b0d144fSAl Viro int bits = uspi->s_apbshift; 7656b0d144fSAl Viro u64 res; 7666b0d144fSAl Viro 7676b0d144fSAl Viro if (bits > 21) 7686b0d144fSAl Viro res = ~0ULL; 7696b0d144fSAl Viro else 7706b0d144fSAl Viro res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) + 7716b0d144fSAl Viro (1LL << (3*bits)); 7726b0d144fSAl Viro 7736b0d144fSAl Viro if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift)) 7746b0d144fSAl Viro return MAX_LFS_FILESIZE; 7756b0d144fSAl Viro return res << uspi->s_bshift; 7766b0d144fSAl Viro } 7776b0d144fSAl Viro 7781da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 7791da177e4SLinus Torvalds { 7801da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7811da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7821da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7831da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7841da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7851da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7861da177e4SLinus Torvalds struct inode *inode; 7871da177e4SLinus Torvalds unsigned block_size, super_block_size; 7881da177e4SLinus Torvalds unsigned flags; 7897b4ee73eSEvgeniy unsigned super_block_offset; 7909e6766ccSDuane Griffin unsigned maxsymlen; 791b55c460dSDavid Howells int ret = -EINVAL; 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds uspi = NULL; 7941da177e4SLinus Torvalds ubh = NULL; 7951da177e4SLinus Torvalds flags = 0; 7961da177e4SLinus Torvalds 797abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7981da177e4SLinus Torvalds 7990244756eSFabian Frederick #ifndef CONFIG_UFS_FS_WRITE 800bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 801a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 8020244756eSFabian Frederick return -EROFS; 8030244756eSFabian Frederick } 8040244756eSFabian Frederick #endif 8050244756eSFabian Frederick 806f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 8071da177e4SLinus Torvalds if (!sbi) 8081da177e4SLinus Torvalds goto failed_nomem; 8091da177e4SLinus Torvalds sb->s_fs_info = sbi; 8109e9ad5f4SArtem Bityutskiy sbi->sb = sb; 8111da177e4SLinus Torvalds 812bc98a42cSDavid Howells UFSD("flag %u\n", (int)(sb_rdonly(sb))); 8131da177e4SLinus Torvalds 814e4f95517SFabian Frederick mutex_init(&sbi->s_lock); 8159e9ad5f4SArtem Bityutskiy spin_lock_init(&sbi->work_lock); 8169e9ad5f4SArtem Bityutskiy INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs); 8171da177e4SLinus Torvalds /* 8181da177e4SLinus Torvalds * Set default mount options 8191da177e4SLinus Torvalds * Parse mount options 8201da177e4SLinus Torvalds */ 8211da177e4SLinus Torvalds sbi->s_mount_opt = 0; 8221da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 8231da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 824a9814c5dSFabian Frederick pr_err("wrong mount options\n"); 8251da177e4SLinus Torvalds goto failed; 8261da177e4SLinus Torvalds } 8271da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 8281da177e4SLinus Torvalds if (!silent) 829a9814c5dSFabian Frederick pr_err("You didn't specify the type of your ufs filesystem\n\n" 8301da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 831c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 8321da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 8331da177e4SLinus Torvalds "default is ufstype=old\n"); 8341da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 8351da177e4SLinus Torvalds } 8361da177e4SLinus Torvalds 837252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 838252e211eSMark Fortescue sbi->s_uspi = uspi; 8391da177e4SLinus Torvalds if (!uspi) 8401da177e4SLinus Torvalds goto failed; 841f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 8427b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 8437b4ee73eSEvgeniy 844239e250eSRichard Narron sb->s_maxbytes = MAX_LFS_FILESIZE; 845239e250eSRichard Narron 84622b13969SDeepa Dinamani sb->s_time_gran = NSEC_PER_SEC; 84722b13969SDeepa Dinamani sb->s_time_min = S32_MIN; 84822b13969SDeepa Dinamani sb->s_time_max = S32_MAX; 84922b13969SDeepa Dinamani 8501da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 8511da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 852abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 8531da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8541da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8551da177e4SLinus Torvalds uspi->s_fshift = 9; 8561da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8571da177e4SLinus Torvalds uspi->s_sbbase = 0; 8581da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8591da177e4SLinus Torvalds break; 8601da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 861abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 8627b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 8631da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8641da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8651da177e4SLinus Torvalds uspi->s_fshift = 9; 8661da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8671da177e4SLinus Torvalds uspi->s_sbbase = 0; 86822b13969SDeepa Dinamani sb->s_time_gran = 1; 86922b13969SDeepa Dinamani sb->s_time_min = S64_MIN; 87022b13969SDeepa Dinamani sb->s_time_max = S64_MAX; 8711da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8721da177e4SLinus Torvalds break; 8731da177e4SLinus Torvalds 8741da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 875abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 8761da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8771da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8781da177e4SLinus Torvalds uspi->s_fshift = 10; 8791da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8801da177e4SLinus Torvalds uspi->s_sbbase = 0; 881252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8821da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 8831da177e4SLinus Torvalds break; 8841da177e4SLinus Torvalds 885252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 886d4beaabdSFabian Frederick UFSD("ufstype=sunos\n"); 887252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 888252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 889252e211eSMark Fortescue uspi->s_fshift = 10; 890252e211eSMark Fortescue uspi->s_sbsize = 2048; 891252e211eSMark Fortescue super_block_size = 2048; 892252e211eSMark Fortescue uspi->s_sbbase = 0; 893252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 894252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 895252e211eSMark Fortescue break; 896252e211eSMark Fortescue 8971da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 898abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 8991da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9001da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9011da177e4SLinus Torvalds uspi->s_fshift = 10; 9021da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9031da177e4SLinus Torvalds uspi->s_sbbase = 0; 904252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 9051da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 9061da177e4SLinus Torvalds break; 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 909abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\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; 9151da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 916bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9171da177e4SLinus Torvalds if (!silent) 918a9814c5dSFabian Frederick pr_info("ufstype=old is supported read-only\n"); 9191751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds break; 9221da177e4SLinus Torvalds 9231da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 924abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 9251da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9261da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9271da177e4SLinus Torvalds uspi->s_fshift = 10; 9281da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9291da177e4SLinus Torvalds uspi->s_sbbase = 0; 9300c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9311da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 932bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9331da177e4SLinus Torvalds if (!silent) 934a9814c5dSFabian Frederick pr_info("ufstype=nextstep is supported read-only\n"); 9351751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9361da177e4SLinus Torvalds } 9371da177e4SLinus Torvalds break; 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 940abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 9411da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 9421da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 9431da177e4SLinus Torvalds uspi->s_fshift = 11; 9441da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9451da177e4SLinus Torvalds uspi->s_sbbase = 0; 9460c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9471da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 948bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9491da177e4SLinus Torvalds if (!silent) 950a9814c5dSFabian Frederick pr_info("ufstype=nextstep-cd is supported read-only\n"); 9511751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9521da177e4SLinus Torvalds } 9531da177e4SLinus Torvalds break; 9541da177e4SLinus Torvalds 9551da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 956abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 9571da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9581da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9591da177e4SLinus Torvalds uspi->s_fshift = 10; 9601da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9611da177e4SLinus Torvalds uspi->s_sbbase = 0; 962f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 9631da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 964bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9651da177e4SLinus Torvalds if (!silent) 966a9814c5dSFabian Frederick pr_info("ufstype=openstep is supported read-only\n"); 9671751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds break; 9701da177e4SLinus Torvalds 9711da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 972abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 9731da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9741da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9751da177e4SLinus Torvalds uspi->s_fshift = 10; 9761da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9771da177e4SLinus Torvalds uspi->s_sbbase = 0; 9781da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 979bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9801da177e4SLinus Torvalds if (!silent) 981a9814c5dSFabian Frederick pr_info("ufstype=hp is supported read-only\n"); 9821751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9831da177e4SLinus Torvalds } 9841da177e4SLinus Torvalds break; 9851da177e4SLinus Torvalds default: 9861da177e4SLinus Torvalds if (!silent) 987a9814c5dSFabian Frederick pr_err("unknown ufstype\n"); 9881da177e4SLinus Torvalds goto failed; 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds 9911da177e4SLinus Torvalds again: 9921da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 993de771bdaSFabian Frederick pr_err("failed to set blocksize\n"); 9941da177e4SLinus Torvalds goto failed; 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds 9971da177e4SLinus Torvalds /* 9981da177e4SLinus Torvalds * read ufs super block from device 9991da177e4SLinus Torvalds */ 10007b4ee73eSEvgeniy 10017b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 10027b4ee73eSEvgeniy 10031da177e4SLinus Torvalds if (!ubh) 10041da177e4SLinus Torvalds goto failed; 10051da177e4SLinus Torvalds 10067b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 10077b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 10087b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 10091da177e4SLinus Torvalds 1010252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 1011252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 1012252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 1013252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 1014252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 1015252e211eSMark Fortescue flags |= UFS_ST_SUN; 1016252e211eSMark Fortescue } 1017252e211eSMark Fortescue 101896ecff14SAl Viro if ((flags & UFS_ST_MASK) == UFS_ST_44BSD && 101996ecff14SAl Viro uspi->s_postblformat == UFS_42POSTBLFMT) { 102096ecff14SAl Viro if (!silent) 102196ecff14SAl Viro pr_err("this is not a 44bsd filesystem"); 102296ecff14SAl Viro goto failed; 102396ecff14SAl Viro } 102496ecff14SAl Viro 10251da177e4SLinus Torvalds /* 10261da177e4SLinus Torvalds * Check ufs magic number 10271da177e4SLinus Torvalds */ 10281da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 10291da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10301da177e4SLinus Torvalds case UFS_MAGIC: 1031d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10321da177e4SLinus Torvalds case UFS2_MAGIC: 10331da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10341da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10351da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10361da177e4SLinus Torvalds goto magic_found; 10371da177e4SLinus Torvalds } 10381da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 10391da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10401da177e4SLinus Torvalds case UFS_MAGIC: 1041d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10421da177e4SLinus Torvalds case UFS2_MAGIC: 10431da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10441da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10451da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10461da177e4SLinus Torvalds goto magic_found; 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds 10491da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 10501da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 10511da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 10521da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 10531da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10541da177e4SLinus Torvalds ubh = NULL; 10551da177e4SLinus Torvalds uspi->s_sbbase += 8; 10561da177e4SLinus Torvalds goto again; 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds if (!silent) 105907bc94fdSFabian Frederick pr_err("%s(): bad magic number\n", __func__); 10601da177e4SLinus Torvalds goto failed; 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds magic_found: 10631da177e4SLinus Torvalds /* 10641da177e4SLinus Torvalds * Check block and fragment sizes 10651da177e4SLinus Torvalds */ 10661da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 10671da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 10681da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 10691da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10701da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 10711da177e4SLinus Torvalds 10729e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 107307bc94fdSFabian Frederick pr_err("%s(): fragment size %u is not a power of 2\n", 107407bc94fdSFabian Frederick __func__, uspi->s_fsize); 10751da177e4SLinus Torvalds goto failed; 10761da177e4SLinus Torvalds } 10771da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 107807bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too small\n", 107907bc94fdSFabian Frederick __func__, uspi->s_fsize); 10801da177e4SLinus Torvalds goto failed; 10811da177e4SLinus Torvalds } 10821da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 108307bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too large\n", 108407bc94fdSFabian Frederick __func__, uspi->s_fsize); 10851da177e4SLinus Torvalds goto failed; 10861da177e4SLinus Torvalds } 10879e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 108807bc94fdSFabian Frederick pr_err("%s(): block size %u is not a power of 2\n", 108907bc94fdSFabian Frederick __func__, uspi->s_bsize); 10901da177e4SLinus Torvalds goto failed; 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 109307bc94fdSFabian Frederick pr_err("%s(): block size %u is too small\n", 109407bc94fdSFabian Frederick __func__, uspi->s_bsize); 10951da177e4SLinus Torvalds goto failed; 10961da177e4SLinus Torvalds } 10971da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 109807bc94fdSFabian Frederick pr_err("%s(): too many fragments per block (%u)\n", 109907bc94fdSFabian Frederick __func__, uspi->s_bsize / uspi->s_fsize); 11001da177e4SLinus Torvalds goto failed; 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 11031da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 11041da177e4SLinus Torvalds ubh = NULL; 11051da177e4SLinus Torvalds block_size = uspi->s_fsize; 11061da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1107abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 11081da177e4SLinus Torvalds goto again; 11091da177e4SLinus Torvalds } 11101da177e4SLinus Torvalds 1111f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 11123313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 11131da177e4SLinus Torvalds 11141da177e4SLinus Torvalds /* 11151da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 11161da177e4SLinus Torvalds * If not, make it read only. 11171da177e4SLinus Torvalds */ 1118f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 11191da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1120f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1121f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1122f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1123f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 11241da177e4SLinus Torvalds switch(usb1->fs_clean) { 11251da177e4SLinus Torvalds case UFS_FSCLEAN: 1126abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 11271da177e4SLinus Torvalds break; 11281da177e4SLinus Torvalds case UFS_FSSTABLE: 1129abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 11301da177e4SLinus Torvalds break; 1131b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1132b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1133b3a0fd4dSAlex Viskovatoff break; 11341da177e4SLinus Torvalds case UFS_FSOSF1: 1135abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 11361da177e4SLinus Torvalds break; 11371da177e4SLinus Torvalds case UFS_FSACTIVE: 113807bc94fdSFabian Frederick pr_err("%s(): fs is active\n", __func__); 11391751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11401da177e4SLinus Torvalds break; 11411da177e4SLinus Torvalds case UFS_FSBAD: 114207bc94fdSFabian Frederick pr_err("%s(): fs is bad\n", __func__); 11431751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11441da177e4SLinus Torvalds break; 11451da177e4SLinus Torvalds default: 114607bc94fdSFabian Frederick pr_err("%s(): can't grok fs_clean 0x%x\n", 114707bc94fdSFabian Frederick __func__, usb1->fs_clean); 11481751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11491da177e4SLinus Torvalds break; 11501da177e4SLinus Torvalds } 1151ee3ffd6cSEvgeniy Dushistov } else { 115207bc94fdSFabian Frederick pr_err("%s(): fs needs fsck\n", __func__); 11531751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11541da177e4SLinus Torvalds } 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds /* 11571da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 11581da177e4SLinus Torvalds */ 11591da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1160f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1161123e9cafSChristoph Hellwig 11621da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 11651da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 11661da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 11671da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 11681da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 11691da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1172c596961dSAl Viro uspi->s_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1173c596961dSAl Viro uspi->s_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1174647b7e87SEvgeniy Dushistov } else { 11751da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 11761da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 11771da177e4SLinus Torvalds } 11781da177e4SLinus Torvalds 11791da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 11801da177e4SLinus Torvalds /* s_bsize already set */ 11811da177e4SLinus Torvalds /* s_fsize already set */ 11821da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 11831da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 11841da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 11851da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 11861da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 11871da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1188abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1189abf5d15fSEvgeniy Dushistov uspi->s_fshift); 11901da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 11911da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 11921da177e4SLinus Torvalds /* s_sbsize already set */ 11931da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 11941da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 11951da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 11961da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11971da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11981da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11991da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 12001da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 12013313e292SEvgeniy Dushistov 12023313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 12033313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 12043313e292SEvgeniy Dushistov else 12051da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 12063313e292SEvgeniy Dushistov 12071da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 12081da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 12091da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 12101da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 12111da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 12121da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 12131da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1214647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1215647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 12161da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 12171da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 12181da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 12191da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 12201da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 12211da177e4SLinus Torvalds 1222c596961dSAl Viro uspi->s_root_blocks = mul_u64_u32_div(uspi->s_dsize, 1223c596961dSAl Viro uspi->s_minfree, 100); 122477e9ce32SAl Viro if (uspi->s_minfree <= 5) { 122577e9ce32SAl Viro uspi->s_time_to_space = ~0ULL; 122677e9ce32SAl Viro uspi->s_space_to_time = 0; 122777e9ce32SAl Viro usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTSPACE); 122877e9ce32SAl Viro } else { 122977e9ce32SAl Viro uspi->s_time_to_space = (uspi->s_root_blocks / 2) + 1; 123077e9ce32SAl Viro uspi->s_space_to_time = mul_u64_u32_div(uspi->s_dsize, 123177e9ce32SAl Viro uspi->s_minfree - 2, 100) - 1; 123277e9ce32SAl Viro } 1233c596961dSAl Viro 12341da177e4SLinus Torvalds /* 12351da177e4SLinus Torvalds * Compute another frequently used values 12361da177e4SLinus Torvalds */ 12371da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1238abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 12391da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1240abf5d15fSEvgeniy Dushistov else 12411da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1242abf5d15fSEvgeniy Dushistov 12431da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 12441da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 12451da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 12461da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 12471da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 12481da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 12491da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 12501da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 12511da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 12521da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 12531da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 12541da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 125590b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 125690b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 12571da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1258647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 12591da177e4SLinus Torvalds 12609e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 12619e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 12629e6766ccSDuane Griffin else 12639e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 12649e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 12659e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 12669e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 12679e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 12689e6766ccSDuane Griffin } 12696b0d144fSAl Viro sb->s_maxbytes = ufs_max_bytes(sb); 12708de52778SAl Viro sb->s_max_links = UFS_LINK_MAX; 12719e6766ccSDuane Griffin 1272b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1273b55c460dSDavid Howells if (IS_ERR(inode)) { 1274b55c460dSDavid Howells ret = PTR_ERR(inode); 12751da177e4SLinus Torvalds goto failed; 1276b55c460dSDavid Howells } 127748fde701SAl Viro sb->s_root = d_make_root(inode); 1278b55c460dSDavid Howells if (!sb->s_root) { 1279b55c460dSDavid Howells ret = -ENOMEM; 128048fde701SAl Viro goto failed; 1281b55c460dSDavid Howells } 12821da177e4SLinus Torvalds 1283ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 12841da177e4SLinus Torvalds /* 12851da177e4SLinus Torvalds * Read cylinder group structures 12861da177e4SLinus Torvalds */ 1287bc98a42cSDavid Howells if (!sb_rdonly(sb)) 12881da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 12891da177e4SLinus Torvalds goto failed; 12901da177e4SLinus Torvalds 1291abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12921da177e4SLinus Torvalds return 0; 12931da177e4SLinus Torvalds 12941da177e4SLinus Torvalds failed: 1295f99d49adSJesper Juhl if (ubh) 1296f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1297f99d49adSJesper Juhl kfree (uspi); 1298f99d49adSJesper Juhl kfree(sbi); 12991da177e4SLinus Torvalds sb->s_fs_info = NULL; 1300abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1301b55c460dSDavid Howells return ret; 13021da177e4SLinus Torvalds 13031da177e4SLinus Torvalds failed_nomem: 1304abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 13051da177e4SLinus Torvalds return -ENOMEM; 13061da177e4SLinus Torvalds } 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 13091da177e4SLinus Torvalds { 13101da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 13111da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 13121da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 13131da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 13141da177e4SLinus Torvalds unsigned flags; 13151da177e4SLinus Torvalds 131602b9984dSTheodore Ts'o sync_filesystem(sb); 1317cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 13181da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 13191da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 13207b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 13217b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 13221da177e4SLinus Torvalds 13231da177e4SLinus Torvalds /* 13241da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 13251da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 13261da177e4SLinus Torvalds */ 13271da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 13281da177e4SLinus Torvalds new_mount_opt = 0; 13291da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1330bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1331cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13321da177e4SLinus Torvalds return -EINVAL; 1333bbd6851aSAl Viro } 13341da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 13351da177e4SLinus Torvalds new_mount_opt |= ufstype; 1336ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 1337a9814c5dSFabian Frederick pr_err("ufstype can't be changed during remount\n"); 1338cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13391da177e4SLinus Torvalds return -EINVAL; 13401da177e4SLinus Torvalds } 13411da177e4SLinus Torvalds 13421751e8a6SLinus Torvalds if ((bool)(*mount_flags & SB_RDONLY) == sb_rdonly(sb)) { 13431da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1344cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13451da177e4SLinus Torvalds return 0; 13461da177e4SLinus Torvalds } 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds /* 13491da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13501da177e4SLinus Torvalds */ 13511751e8a6SLinus Torvalds if (*mount_flags & SB_RDONLY) { 1352ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 1353a3fda0ffSArnd Bergmann usb1->fs_time = ufs_get_seconds(sb); 13541da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1355252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13561da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13571da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13581da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13599695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13601751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 1361ee3ffd6cSEvgeniy Dushistov } else { 13621da177e4SLinus Torvalds /* 13631da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13641da177e4SLinus Torvalds */ 13651da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 1366a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 1367cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13681da177e4SLinus Torvalds return -EINVAL; 13691da177e4SLinus Torvalds #else 13701da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1371252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13721da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1373cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1374cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 1375a9814c5dSFabian Frederick pr_err("this ufstype is read-only supported\n"); 1376cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13771da177e4SLinus Torvalds return -EINVAL; 13781da177e4SLinus Torvalds } 13791da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 1380a9814c5dSFabian Frederick pr_err("failed during remounting\n"); 1381cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13821da177e4SLinus Torvalds return -EPERM; 13831da177e4SLinus Torvalds } 13841751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 13851da177e4SLinus Torvalds #endif 13861da177e4SLinus Torvalds } 13871da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1388cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13891da177e4SLinus Torvalds return 0; 13901da177e4SLinus Torvalds } 13911da177e4SLinus Torvalds 139234c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13932a9807c0SEvgeniy Dushistov { 139434c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13952a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1396a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13972a9807c0SEvgeniy Dushistov 13982a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13992a9807c0SEvgeniy Dushistov ++tp; 14002a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 14012a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 14022a9807c0SEvgeniy Dushistov 14032a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 14042a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 14052a9807c0SEvgeniy Dushistov ++tp; 14062a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 14072a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 14082a9807c0SEvgeniy Dushistov 14092a9807c0SEvgeniy Dushistov return 0; 14102a9807c0SEvgeniy Dushistov } 14112a9807c0SEvgeniy Dushistov 1412726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 14131da177e4SLinus Torvalds { 1414726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1415647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1416647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 141741d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 14181da177e4SLinus Torvalds 1419dff7cfd3SAl Viro mutex_lock(&UFS_SB(sb)->s_lock); 14201da177e4SLinus Torvalds 1421c596961dSAl Viro if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 14221da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1423c596961dSAl Viro else 14241da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 1425c596961dSAl Viro 14261da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 1427c596961dSAl Viro buf->f_bfree = ufs_freefrags(uspi); 1428ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14291da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 1430c596961dSAl Viro buf->f_bavail = (buf->f_bfree > uspi->s_root_blocks) 1431c596961dSAl Viro ? (buf->f_bfree - uspi->s_root_blocks) : 0; 14321da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14331da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 14346d1349c7SAl Viro buf->f_fsid = u64_to_fsid(id); 14351da177e4SLinus Torvalds 1436dff7cfd3SAl Viro mutex_unlock(&UFS_SB(sb)->s_lock); 14371da177e4SLinus Torvalds 14381da177e4SLinus Torvalds return 0; 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 1441e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14421da177e4SLinus Torvalds 14431da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14441da177e4SLinus Torvalds { 14451da177e4SLinus Torvalds struct ufs_inode_info *ei; 144661da3ae2SFabian Frederick 144761da3ae2SFabian Frederick ei = kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); 14481da177e4SLinus Torvalds if (!ei) 14491da177e4SLinus Torvalds return NULL; 145061da3ae2SFabian Frederick 1451bb8c2d66SJeff Layton inode_set_iversion(&ei->vfs_inode, 1); 1452724bb09fSAl Viro seqlock_init(&ei->meta_lock); 1453724bb09fSAl Viro mutex_init(&ei->truncate_mutex); 14541da177e4SLinus Torvalds return &ei->vfs_inode; 14551da177e4SLinus Torvalds } 14561da177e4SLinus Torvalds 145798835e88SAl Viro static void ufs_free_in_core_inode(struct inode *inode) 1458fa0d7e3dSNick Piggin { 1459fa0d7e3dSNick Piggin kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 1460fa0d7e3dSNick Piggin } 1461fa0d7e3dSNick Piggin 146251cc5068SAlexey Dobriyan static void init_once(void *foo) 14631da177e4SLinus Torvalds { 14641da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14651da177e4SLinus Torvalds 14661da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14671da177e4SLinus Torvalds } 14681da177e4SLinus Torvalds 146976ee4735SFabian Frederick static int __init init_inodecache(void) 14701da177e4SLinus Torvalds { 1471df5f3cfcSDavid Windsor ufs_inode_cachep = kmem_cache_create_usercopy("ufs_inode_cache", 1472df5f3cfcSDavid Windsor sizeof(struct ufs_inode_info), 0, 1473df5f3cfcSDavid Windsor (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD| 1474df5f3cfcSDavid Windsor SLAB_ACCOUNT), 1475df5f3cfcSDavid Windsor offsetof(struct ufs_inode_info, i_u1.i_symlink), 1476df5f3cfcSDavid Windsor sizeof_field(struct ufs_inode_info, 1477df5f3cfcSDavid Windsor i_u1.i_symlink), 147820c2df83SPaul Mundt init_once); 14791da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14801da177e4SLinus Torvalds return -ENOMEM; 14811da177e4SLinus Torvalds return 0; 14821da177e4SLinus Torvalds } 14831da177e4SLinus Torvalds 14841da177e4SLinus Torvalds static void destroy_inodecache(void) 14851da177e4SLinus Torvalds { 14868c0a8537SKirill A. Shutemov /* 14878c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 14888c0a8537SKirill A. Shutemov * destroy cache. 14898c0a8537SKirill A. Shutemov */ 14908c0a8537SKirill A. Shutemov rcu_barrier(); 14911a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14921da177e4SLinus Torvalds } 14931da177e4SLinus Torvalds 1494ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14951da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 149698835e88SAl Viro .free_inode = ufs_free_in_core_inode, 14971da177e4SLinus Torvalds .write_inode = ufs_write_inode, 149858e8268cSAl Viro .evict_inode = ufs_evict_inode, 14991da177e4SLinus Torvalds .put_super = ufs_put_super, 15008c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 15011da177e4SLinus Torvalds .statfs = ufs_statfs, 15021da177e4SLinus Torvalds .remount_fs = ufs_remount, 15032a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 15041da177e4SLinus Torvalds }; 15051da177e4SLinus Torvalds 1506152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1507152a0836SAl Viro int flags, const char *dev_name, void *data) 15081da177e4SLinus Torvalds { 1509152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 15101da177e4SLinus Torvalds } 15111da177e4SLinus Torvalds 15121da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 15131da177e4SLinus Torvalds .owner = THIS_MODULE, 15141da177e4SLinus Torvalds .name = "ufs", 1515152a0836SAl Viro .mount = ufs_mount, 15161da177e4SLinus Torvalds .kill_sb = kill_block_super, 15171da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15181da177e4SLinus Torvalds }; 15197f78e035SEric W. Biederman MODULE_ALIAS_FS("ufs"); 15201da177e4SLinus Torvalds 15211da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15221da177e4SLinus Torvalds { 15231da177e4SLinus Torvalds int err = init_inodecache(); 15241da177e4SLinus Torvalds if (err) 15251da177e4SLinus Torvalds goto out1; 15261da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15271da177e4SLinus Torvalds if (err) 15281da177e4SLinus Torvalds goto out; 15291da177e4SLinus Torvalds return 0; 15301da177e4SLinus Torvalds out: 15311da177e4SLinus Torvalds destroy_inodecache(); 15321da177e4SLinus Torvalds out1: 15331da177e4SLinus Torvalds return err; 15341da177e4SLinus Torvalds } 15351da177e4SLinus Torvalds 15361da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15371da177e4SLinus Torvalds { 15381da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15391da177e4SLinus Torvalds destroy_inodecache(); 15401da177e4SLinus Torvalds } 15411da177e4SLinus Torvalds 15421da177e4SLinus Torvalds module_init(init_ufs_fs) 15431da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15441da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1545