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 747c0f6ba6SLinus Torvalds #include <linux/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> 8366114cadSTejun Heo #include <linux/backing-dev.h> 841da177e4SLinus Torvalds #include <linux/init.h> 851da177e4SLinus Torvalds #include <linux/parser.h> 861da177e4SLinus Torvalds #include <linux/buffer_head.h> 871da177e4SLinus Torvalds #include <linux/vfs.h> 889e8c4273Svignesh babu #include <linux/log2.h> 892a9807c0SEvgeniy Dushistov #include <linux/mount.h> 902a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 91bb8c2d66SJeff Layton #include <linux/iversion.h> 921da177e4SLinus Torvalds 93e5420598SMike Frysinger #include "ufs_fs.h" 94bcd6d4ecSChristoph Hellwig #include "ufs.h" 951da177e4SLinus Torvalds #include "swab.h" 961da177e4SLinus Torvalds #include "util.h" 971da177e4SLinus Torvalds 98f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 99f3e2a520SAlexey Dobriyan { 100f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 101f3e2a520SAlexey Dobriyan struct inode *inode; 102f3e2a520SAlexey Dobriyan 103f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 104f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 105f3e2a520SAlexey Dobriyan 106f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 107f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 108f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 109f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 110f3e2a520SAlexey Dobriyan iput(inode); 111f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 112f3e2a520SAlexey Dobriyan } 113f3e2a520SAlexey Dobriyan return inode; 114f3e2a520SAlexey Dobriyan } 115f3e2a520SAlexey Dobriyan 116f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 117f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 118f3e2a520SAlexey Dobriyan { 119f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 120f3e2a520SAlexey Dobriyan } 121f3e2a520SAlexey Dobriyan 122f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 123f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 124f3e2a520SAlexey Dobriyan { 125f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 126f3e2a520SAlexey Dobriyan } 127f3e2a520SAlexey Dobriyan 128f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 129f3e2a520SAlexey Dobriyan { 13026fe5750SLinus Torvalds struct qstr dot_dot = QSTR_INIT("..", 2); 131f3e2a520SAlexey Dobriyan ino_t ino; 132f3e2a520SAlexey Dobriyan 1332b0143b5SDavid Howells ino = ufs_inode_by_name(d_inode(child), &dot_dot); 134f3e2a520SAlexey Dobriyan if (!ino) 135f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 136fc64005cSAl Viro return d_obtain_alias(ufs_iget(child->d_sb, ino)); 137f3e2a520SAlexey Dobriyan } 138f3e2a520SAlexey Dobriyan 139f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 140f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 141f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 142f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 143f3e2a520SAlexey Dobriyan }; 144f3e2a520SAlexey Dobriyan 145abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1461da177e4SLinus Torvalds /* 1471da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1481da177e4SLinus Torvalds */ 1493313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1501da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1511da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1521da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1531da177e4SLinus Torvalds { 1543313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1553313e292SEvgeniy Dushistov 156a9814c5dSFabian Frederick pr_debug("ufs_print_super_stuff\n"); 157a9814c5dSFabian Frederick pr_debug(" magic: 0x%x\n", magic); 1583313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 159a9814c5dSFabian Frederick pr_debug(" fs_size: %llu\n", (unsigned long long) 160647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 161a9814c5dSFabian Frederick pr_debug(" fs_dsize: %llu\n", (unsigned long long) 162647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 163a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", 164647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 165a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", 166647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 167a9814c5dSFabian Frederick pr_debug(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 168a9814c5dSFabian Frederick pr_debug(" fs_sblockloc: %llu\n", (unsigned long long) 169647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 170a9814c5dSFabian Frederick pr_debug(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 171647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 172a9814c5dSFabian Frederick pr_debug(" cs_nbfree(No of free blocks): %llu\n", 173647b7e87SEvgeniy Dushistov (unsigned long long) 174647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 175a9814c5dSFabian Frederick pr_info(" cs_nifree(Num of free inodes): %llu\n", 1763313e292SEvgeniy Dushistov (unsigned long long) 1773313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 178a9814c5dSFabian Frederick pr_info(" cs_nffree(Num of free frags): %llu\n", 1793313e292SEvgeniy Dushistov (unsigned long long) 1803313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 181a9814c5dSFabian Frederick pr_info(" fs_maxsymlinklen: %u\n", 18290b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 183647b7e87SEvgeniy Dushistov } else { 184a9814c5dSFabian Frederick pr_debug(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 185a9814c5dSFabian Frederick pr_debug(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 186a9814c5dSFabian Frederick pr_debug(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 187a9814c5dSFabian Frederick pr_debug(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 188a9814c5dSFabian Frederick pr_debug(" cgoffset: %u\n", 189647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 190a9814c5dSFabian Frederick pr_debug(" ~cgmask: 0x%x\n", 191647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 192a9814c5dSFabian Frederick pr_debug(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 193a9814c5dSFabian Frederick pr_debug(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 194a9814c5dSFabian Frederick pr_debug(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 195a9814c5dSFabian Frederick pr_debug(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 196a9814c5dSFabian Frederick pr_debug(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 197a9814c5dSFabian Frederick pr_debug(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 198a9814c5dSFabian Frederick pr_debug(" fragshift: %u\n", 199647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 200a9814c5dSFabian Frederick pr_debug(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 201a9814c5dSFabian Frederick pr_debug(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 202a9814c5dSFabian Frederick pr_debug(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 203a9814c5dSFabian Frederick pr_debug(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 204a9814c5dSFabian Frederick pr_debug(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 205a9814c5dSFabian Frederick pr_debug(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 206a9814c5dSFabian Frederick pr_debug(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 207a9814c5dSFabian Frederick pr_debug(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 208a9814c5dSFabian Frederick pr_debug(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 209a9814c5dSFabian Frederick pr_debug(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 210a9814c5dSFabian Frederick pr_debug(" fstodb: %u\n", 211647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 212a9814c5dSFabian Frederick pr_debug(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 213a9814c5dSFabian Frederick pr_debug(" ndir %u\n", 214647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 215a9814c5dSFabian Frederick pr_debug(" nifree %u\n", 216647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 217a9814c5dSFabian Frederick pr_debug(" nbfree %u\n", 218647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 219a9814c5dSFabian Frederick pr_debug(" nffree %u\n", 220647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2211da177e4SLinus Torvalds } 222a9814c5dSFabian Frederick pr_debug("\n"); 2231da177e4SLinus Torvalds } 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds /* 2261da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2271da177e4SLinus Torvalds */ 228647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 229647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2301da177e4SLinus Torvalds { 231a9814c5dSFabian Frederick pr_debug("\nufs_print_cylinder_stuff\n"); 232a9814c5dSFabian Frederick pr_debug("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 233a9814c5dSFabian Frederick pr_debug(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 234a9814c5dSFabian Frederick pr_debug(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 235a9814c5dSFabian Frederick pr_debug(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 236a9814c5dSFabian Frederick pr_debug(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 237a9814c5dSFabian Frederick pr_debug(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 238a9814c5dSFabian Frederick pr_debug(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 239a9814c5dSFabian Frederick pr_debug(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 240a9814c5dSFabian Frederick pr_debug(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 241a9814c5dSFabian Frederick pr_debug(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 242a9814c5dSFabian Frederick pr_debug(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 243a9814c5dSFabian Frederick pr_debug(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 244a9814c5dSFabian Frederick pr_debug(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 245a9814c5dSFabian Frederick pr_debug(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 246a9814c5dSFabian Frederick pr_debug(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2471da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2481da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2491da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2501da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 251a9814c5dSFabian Frederick pr_debug(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 252a9814c5dSFabian Frederick pr_debug(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 253a9814c5dSFabian Frederick pr_debug(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 254a9814c5dSFabian Frederick pr_debug(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 255a9814c5dSFabian Frederick pr_debug(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 256a9814c5dSFabian Frederick pr_debug(" clustersumoff %u\n", 257647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 258a9814c5dSFabian Frederick pr_debug(" clusteroff %u\n", 259647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 260a9814c5dSFabian Frederick pr_debug(" nclusterblks %u\n", 261647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 262a9814c5dSFabian Frederick pr_debug("\n"); 2631da177e4SLinus Torvalds } 264647b7e87SEvgeniy Dushistov #else 2653313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 266647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 267abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2681da177e4SLinus Torvalds 269ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2721da177e4SLinus Torvalds const char * fmt, ...) 2731da177e4SLinus Torvalds { 2741da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2751da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2767e1e4167SFabian Frederick struct va_format vaf; 2771da177e4SLinus Torvalds va_list args; 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2807b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2811da177e4SLinus Torvalds 282bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 2831da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2849695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2859e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 2861751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2871da177e4SLinus Torvalds } 2881da177e4SLinus Torvalds va_start(args, fmt); 2897e1e4167SFabian Frederick vaf.fmt = fmt; 2907e1e4167SFabian Frederick vaf.va = &args; 2911da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2921da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2937e1e4167SFabian Frederick panic("panic (device %s): %s: %pV\n", 2947e1e4167SFabian Frederick sb->s_id, function, &vaf); 2951da177e4SLinus Torvalds 2961da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 2971da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 2981da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 2997e1e4167SFabian Frederick pr_crit("error (device %s): %s: %pV\n", 3007e1e4167SFabian Frederick sb->s_id, function, &vaf); 3011da177e4SLinus Torvalds } 3027e1e4167SFabian Frederick va_end(args); 3031da177e4SLinus Torvalds } 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3061da177e4SLinus Torvalds const char * fmt, ...) 3071da177e4SLinus Torvalds { 3081da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3091da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3107e1e4167SFabian Frederick struct va_format vaf; 3111da177e4SLinus Torvalds va_list args; 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3147b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3151da177e4SLinus Torvalds 316bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 3171da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3189695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3199e9ad5f4SArtem Bityutskiy ufs_mark_sb_dirty(sb); 3201da177e4SLinus Torvalds } 3211da177e4SLinus Torvalds va_start(args, fmt); 3227e1e4167SFabian Frederick vaf.fmt = fmt; 3237e1e4167SFabian Frederick vaf.va = &args; 3241751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 3257e1e4167SFabian Frederick pr_crit("panic (device %s): %s: %pV\n", 3267e1e4167SFabian Frederick sb->s_id, function, &vaf); 3277e1e4167SFabian Frederick va_end(args); 3281da177e4SLinus Torvalds } 3291da177e4SLinus Torvalds 3301da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3311da177e4SLinus Torvalds const char * fmt, ...) 3321da177e4SLinus Torvalds { 3337e1e4167SFabian Frederick struct va_format vaf; 3341da177e4SLinus Torvalds va_list args; 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds va_start(args, fmt); 3377e1e4167SFabian Frederick vaf.fmt = fmt; 3387e1e4167SFabian Frederick vaf.va = &args; 3397e1e4167SFabian Frederick pr_warn("(device %s): %s: %pV\n", 3407e1e4167SFabian Frederick sb->s_id, function, &vaf); 3411da177e4SLinus Torvalds va_end(args); 3421da177e4SLinus Torvalds } 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds enum { 3452a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3462a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3472a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3482a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3492a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3502a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3512a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3522a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3532a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3542a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3552a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3562a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3572a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3582a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3592a9807c0SEvgeniy Dushistov Opt_err 3601da177e4SLinus Torvalds }; 3611da177e4SLinus Torvalds 362a447c093SSteven Whitehouse static const match_table_t tokens = { 3631da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3641da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3651da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 366252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3671da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3681da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3691da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3701da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3711da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3721da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3731da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3742a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3751da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3761da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3771da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3781da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3791da177e4SLinus Torvalds {Opt_err, NULL} 3801da177e4SLinus Torvalds }; 3811da177e4SLinus Torvalds 3821da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3831da177e4SLinus Torvalds { 3841da177e4SLinus Torvalds char * p; 3851da177e4SLinus Torvalds 386abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3871da177e4SLinus Torvalds 3881da177e4SLinus Torvalds if (!options) 3891da177e4SLinus Torvalds return 1; 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3921da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3931da177e4SLinus Torvalds int token; 3941da177e4SLinus Torvalds if (!*p) 3951da177e4SLinus Torvalds continue; 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds token = match_token(p, tokens, args); 3981da177e4SLinus Torvalds switch (token) { 3991da177e4SLinus Torvalds case Opt_type_old: 4001da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4011da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4021da177e4SLinus Torvalds break; 4031da177e4SLinus Torvalds case Opt_type_sunx86: 4041da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4051da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4061da177e4SLinus Torvalds break; 4071da177e4SLinus Torvalds case Opt_type_sun: 4081da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4091da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4101da177e4SLinus Torvalds break; 411252e211eSMark Fortescue case Opt_type_sunos: 412252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 413252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 414252e211eSMark Fortescue break; 4151da177e4SLinus Torvalds case Opt_type_44bsd: 4161da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4171da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4181da177e4SLinus Torvalds break; 4191da177e4SLinus Torvalds case Opt_type_ufs2: 4201da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4211da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4221da177e4SLinus Torvalds break; 4231da177e4SLinus Torvalds case Opt_type_hp: 4241da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4251da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4261da177e4SLinus Torvalds break; 4271da177e4SLinus Torvalds case Opt_type_nextstepcd: 4281da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4291da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4301da177e4SLinus Torvalds break; 4311da177e4SLinus Torvalds case Opt_type_nextstep: 4321da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4331da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4341da177e4SLinus Torvalds break; 4351da177e4SLinus Torvalds case Opt_type_openstep: 4361da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4371da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4381da177e4SLinus Torvalds break; 4391da177e4SLinus Torvalds case Opt_onerror_panic: 4401da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4411da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4421da177e4SLinus Torvalds break; 4431da177e4SLinus Torvalds case Opt_onerror_lock: 4441da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4451da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4461da177e4SLinus Torvalds break; 4471da177e4SLinus Torvalds case Opt_onerror_umount: 4481da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4491da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4501da177e4SLinus Torvalds break; 4511da177e4SLinus Torvalds case Opt_onerror_repair: 452de771bdaSFabian Frederick pr_err("Unable to do repair on error, will lock lock instead\n"); 4531da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4541da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4551da177e4SLinus Torvalds break; 4561da177e4SLinus Torvalds default: 457de771bdaSFabian Frederick pr_err("Invalid option: \"%s\" or missing value\n", p); 4581da177e4SLinus Torvalds return 0; 4591da177e4SLinus Torvalds } 4601da177e4SLinus Torvalds } 4611da177e4SLinus Torvalds return 1; 4621da177e4SLinus Torvalds } 4631da177e4SLinus Torvalds 4641da177e4SLinus Torvalds /* 46525985edcSLucas De Marchi * Different types of UFS hold fs_cstotal in different 46625985edcSLucas De Marchi * places, and use different data structure for it. 46725985edcSLucas De Marchi * To make things simpler we just copy fs_cstotal to ufs_sb_private_info 468ee3ffd6cSEvgeniy Dushistov */ 469ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 470ee3ffd6cSEvgeniy Dushistov { 471ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 472ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 473ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 474ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 475ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 476ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 477ee3ffd6cSEvgeniy Dushistov 478ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 479ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 480ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 481ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 482ee3ffd6cSEvgeniy Dushistov 483ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 48496ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) || 485ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 486ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 487ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 488ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 489ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 490ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 491ee3ffd6cSEvgeniy Dushistov } else { 492ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 493ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 494ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 495ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 496ee3ffd6cSEvgeniy Dushistov } 497ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 498ee3ffd6cSEvgeniy Dushistov } 499ee3ffd6cSEvgeniy Dushistov 500ee3ffd6cSEvgeniy Dushistov /* 5011da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5021da177e4SLinus Torvalds */ 503e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 504e295cfcbSEvgeniy Dushistov { 5051da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 506647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5071da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5081da177e4SLinus Torvalds unsigned char * base, * space; 5091da177e4SLinus Torvalds unsigned size, blks, i; 5101da177e4SLinus Torvalds 511abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5121da177e4SLinus Torvalds 5131da177e4SLinus Torvalds /* 5141da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5151da177e4SLinus Torvalds * on the device. 5161da177e4SLinus Torvalds */ 5171da177e4SLinus Torvalds size = uspi->s_cssize; 5181da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 519788257d6SArnd Bergmann base = space = kmalloc(size, GFP_NOFS); 5201da177e4SLinus Torvalds if (!base) 5211da177e4SLinus Torvalds goto failed; 522e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5231da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5241da177e4SLinus Torvalds size = uspi->s_bsize; 5251da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5261da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5271da177e4SLinus Torvalds 5281da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5297b4ee73eSEvgeniy 5301da177e4SLinus Torvalds if (!ubh) 5311da177e4SLinus Torvalds goto failed; 5327b4ee73eSEvgeniy 5331da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5347b4ee73eSEvgeniy 5351da177e4SLinus Torvalds space += size; 5361da177e4SLinus Torvalds ubh_brelse (ubh); 5371da177e4SLinus Torvalds ubh = NULL; 5381da177e4SLinus Torvalds } 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds /* 5411da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5421da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5431da177e4SLinus Torvalds */ 5446da2ec56SKees Cook sbi->s_ucg = kmalloc_array(uspi->s_ncg, sizeof(struct buffer_head *), 5456da2ec56SKees Cook GFP_NOFS); 5466da2ec56SKees Cook if (!sbi->s_ucg) 5471da177e4SLinus Torvalds goto failed; 5481da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5491da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5501da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5511da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5521da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5531da177e4SLinus Torvalds } 5541da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 555abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5561da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5571da177e4SLinus Torvalds goto failed; 5581da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5591da177e4SLinus Torvalds goto failed; 560647b7e87SEvgeniy Dushistov 5611da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5621da177e4SLinus Torvalds } 5631da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 564788257d6SArnd Bergmann if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_NOFS))) 5651da177e4SLinus Torvalds goto failed; 5661da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5671da177e4SLinus Torvalds } 5681da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 569abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5701da177e4SLinus Torvalds return 1; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds failed: 573f99d49adSJesper Juhl kfree (base); 5741da177e4SLinus Torvalds if (sbi->s_ucg) { 5751da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 576f99d49adSJesper Juhl if (sbi->s_ucg[i]) 577f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5781da177e4SLinus Torvalds kfree (sbi->s_ucg); 5791da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 580f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5811da177e4SLinus Torvalds } 582abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5831da177e4SLinus Torvalds return 0; 5841da177e4SLinus Torvalds } 5851da177e4SLinus Torvalds 5861da177e4SLinus Torvalds /* 587ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5881da177e4SLinus Torvalds */ 589ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 590ee3ffd6cSEvgeniy Dushistov { 591ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 592ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 593ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 594ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 595ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 596ee3ffd6cSEvgeniy Dushistov 597ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 598ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 599ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 600ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 601ee3ffd6cSEvgeniy Dushistov 60296ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_UFS2) { 603ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 604ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 605ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 606ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 607ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 608ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 609ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 610ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 611ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 61296ecff14SAl Viro goto out; 613ee3ffd6cSEvgeniy Dushistov } 61496ecff14SAl Viro 61596ecff14SAl Viro if (mtype == UFS_MOUNT_UFSTYPE_44BSD && 61696ecff14SAl Viro (usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) { 61796ecff14SAl Viro /* store stats in both old and new places */ 61896ecff14SAl Viro usb2->fs_un.fs_u2.cs_ndir = 61996ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 62096ecff14SAl Viro usb2->fs_un.fs_u2.cs_nbfree = 62196ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 62296ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nifree = 62396ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 62496ecff14SAl Viro usb3->fs_un1.fs_u2.cs_nffree = 62596ecff14SAl Viro cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 62696ecff14SAl Viro } 62796ecff14SAl Viro usb1->fs_cstotal.cs_ndir = cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 62896ecff14SAl Viro usb1->fs_cstotal.cs_nbfree = cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 62996ecff14SAl Viro usb1->fs_cstotal.cs_nifree = cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 63096ecff14SAl Viro usb1->fs_cstotal.cs_nffree = cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 63196ecff14SAl Viro out: 632ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6333313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 634ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 635ee3ffd6cSEvgeniy Dushistov } 636ee3ffd6cSEvgeniy Dushistov 637ee3ffd6cSEvgeniy Dushistov /** 638ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 639ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 640ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 641ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 642ee3ffd6cSEvgeniy Dushistov */ 643ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 644e295cfcbSEvgeniy Dushistov { 6451da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 646ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6471da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6481da177e4SLinus Torvalds unsigned char * base, * space; 6491da177e4SLinus Torvalds unsigned blks, size, i; 6501da177e4SLinus Torvalds 651ee3ffd6cSEvgeniy Dushistov 652abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6536cfd0148SChristoph Hellwig 654ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6551da177e4SLinus Torvalds size = uspi->s_cssize; 6561da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 657e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6581da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6591da177e4SLinus Torvalds size = uspi->s_bsize; 6601da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6611da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6623313e292SEvgeniy Dushistov 6631da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6643313e292SEvgeniy Dushistov 6651da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6661da177e4SLinus Torvalds space += size; 6671da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6681da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6691da177e4SLinus Torvalds ubh_brelse (ubh); 6701da177e4SLinus Torvalds } 6711da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6721da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6731da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6741da177e4SLinus Torvalds } 6751da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6761da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6771da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6781da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6791da177e4SLinus Torvalds kfree (sbi->s_ucg); 6801da177e4SLinus Torvalds kfree (base); 6816cfd0148SChristoph Hellwig 682abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds 6857bd54ef7SArtem Bityutskiy static int ufs_sync_fs(struct super_block *sb, int wait) 6867bd54ef7SArtem Bityutskiy { 6877bd54ef7SArtem Bityutskiy struct ufs_sb_private_info * uspi; 6887bd54ef7SArtem Bityutskiy struct ufs_super_block_first * usb1; 6897bd54ef7SArtem Bityutskiy struct ufs_super_block_third * usb3; 6907bd54ef7SArtem Bityutskiy unsigned flags; 6917bd54ef7SArtem Bityutskiy 692cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 6937bd54ef7SArtem Bityutskiy 6947bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 6957bd54ef7SArtem Bityutskiy 6967bd54ef7SArtem Bityutskiy flags = UFS_SB(sb)->s_flags; 6977bd54ef7SArtem Bityutskiy uspi = UFS_SB(sb)->s_uspi; 6987bd54ef7SArtem Bityutskiy usb1 = ubh_get_usb_first(uspi); 6997bd54ef7SArtem Bityutskiy usb3 = ubh_get_usb_third(uspi); 7007bd54ef7SArtem Bityutskiy 701a3fda0ffSArnd Bergmann usb1->fs_time = ufs_get_seconds(sb); 7027bd54ef7SArtem Bityutskiy if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 7037bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 7047bd54ef7SArtem Bityutskiy (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 7057bd54ef7SArtem Bityutskiy ufs_set_fs_state(sb, usb1, usb3, 7067bd54ef7SArtem Bityutskiy UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 7077bd54ef7SArtem Bityutskiy ufs_put_cstotal(sb); 7087bd54ef7SArtem Bityutskiy 7097bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 710cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 7117bd54ef7SArtem Bityutskiy 7127bd54ef7SArtem Bityutskiy return 0; 7137bd54ef7SArtem Bityutskiy } 7147bd54ef7SArtem Bityutskiy 7159e9ad5f4SArtem Bityutskiy static void delayed_sync_fs(struct work_struct *work) 7167bd54ef7SArtem Bityutskiy { 7179e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi; 7189e9ad5f4SArtem Bityutskiy 7199e9ad5f4SArtem Bityutskiy sbi = container_of(work, struct ufs_sb_info, sync_work.work); 7209e9ad5f4SArtem Bityutskiy 7219e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7229e9ad5f4SArtem Bityutskiy sbi->work_queued = 0; 7239e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7249e9ad5f4SArtem Bityutskiy 7259e9ad5f4SArtem Bityutskiy ufs_sync_fs(sbi->sb, 1); 7269e9ad5f4SArtem Bityutskiy } 7279e9ad5f4SArtem Bityutskiy 7289e9ad5f4SArtem Bityutskiy void ufs_mark_sb_dirty(struct super_block *sb) 7299e9ad5f4SArtem Bityutskiy { 7309e9ad5f4SArtem Bityutskiy struct ufs_sb_info *sbi = UFS_SB(sb); 7319e9ad5f4SArtem Bityutskiy unsigned long delay; 7329e9ad5f4SArtem Bityutskiy 7339e9ad5f4SArtem Bityutskiy spin_lock(&sbi->work_lock); 7349e9ad5f4SArtem Bityutskiy if (!sbi->work_queued) { 7359e9ad5f4SArtem Bityutskiy delay = msecs_to_jiffies(dirty_writeback_interval * 10); 7369e9ad5f4SArtem Bityutskiy queue_delayed_work(system_long_wq, &sbi->sync_work, delay); 7379e9ad5f4SArtem Bityutskiy sbi->work_queued = 1; 7389e9ad5f4SArtem Bityutskiy } 7399e9ad5f4SArtem Bityutskiy spin_unlock(&sbi->work_lock); 7407bd54ef7SArtem Bityutskiy } 7417bd54ef7SArtem Bityutskiy 7427bd54ef7SArtem Bityutskiy static void ufs_put_super(struct super_block *sb) 7437bd54ef7SArtem Bityutskiy { 7447bd54ef7SArtem Bityutskiy struct ufs_sb_info * sbi = UFS_SB(sb); 7457bd54ef7SArtem Bityutskiy 7467bd54ef7SArtem Bityutskiy UFSD("ENTER\n"); 7477bd54ef7SArtem Bityutskiy 748bc98a42cSDavid Howells if (!sb_rdonly(sb)) 7497bd54ef7SArtem Bityutskiy ufs_put_super_internal(sb); 7509e9ad5f4SArtem Bityutskiy cancel_delayed_work_sync(&sbi->sync_work); 7517bd54ef7SArtem Bityutskiy 7527bd54ef7SArtem Bityutskiy ubh_brelse_uspi (sbi->s_uspi); 7537bd54ef7SArtem Bityutskiy kfree (sbi->s_uspi); 7547bd54ef7SArtem Bityutskiy kfree (sbi); 7557bd54ef7SArtem Bityutskiy sb->s_fs_info = NULL; 7567bd54ef7SArtem Bityutskiy UFSD("EXIT\n"); 7577bd54ef7SArtem Bityutskiy return; 7587bd54ef7SArtem Bityutskiy } 7597bd54ef7SArtem Bityutskiy 7606b0d144fSAl Viro static u64 ufs_max_bytes(struct super_block *sb) 7616b0d144fSAl Viro { 7626b0d144fSAl Viro struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 7636b0d144fSAl Viro int bits = uspi->s_apbshift; 7646b0d144fSAl Viro u64 res; 7656b0d144fSAl Viro 7666b0d144fSAl Viro if (bits > 21) 7676b0d144fSAl Viro res = ~0ULL; 7686b0d144fSAl Viro else 7696b0d144fSAl Viro res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) + 7706b0d144fSAl Viro (1LL << (3*bits)); 7716b0d144fSAl Viro 7726b0d144fSAl Viro if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift)) 7736b0d144fSAl Viro return MAX_LFS_FILESIZE; 7746b0d144fSAl Viro return res << uspi->s_bshift; 7756b0d144fSAl Viro } 7766b0d144fSAl Viro 7771da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 7781da177e4SLinus Torvalds { 7791da177e4SLinus Torvalds struct ufs_sb_info * sbi; 7801da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 7811da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 7821da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 7831da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 7841da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 7851da177e4SLinus Torvalds struct inode *inode; 7861da177e4SLinus Torvalds unsigned block_size, super_block_size; 7871da177e4SLinus Torvalds unsigned flags; 7887b4ee73eSEvgeniy unsigned super_block_offset; 7899e6766ccSDuane Griffin unsigned maxsymlen; 790b55c460dSDavid Howells int ret = -EINVAL; 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds uspi = NULL; 7931da177e4SLinus Torvalds ubh = NULL; 7941da177e4SLinus Torvalds flags = 0; 7951da177e4SLinus Torvalds 796abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7971da177e4SLinus Torvalds 7980244756eSFabian Frederick #ifndef CONFIG_UFS_FS_WRITE 799bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 800a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 8010244756eSFabian Frederick return -EROFS; 8020244756eSFabian Frederick } 8030244756eSFabian Frederick #endif 8040244756eSFabian Frederick 805f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 8061da177e4SLinus Torvalds if (!sbi) 8071da177e4SLinus Torvalds goto failed_nomem; 8081da177e4SLinus Torvalds sb->s_fs_info = sbi; 8099e9ad5f4SArtem Bityutskiy sbi->sb = sb; 8101da177e4SLinus Torvalds 811bc98a42cSDavid Howells UFSD("flag %u\n", (int)(sb_rdonly(sb))); 8121da177e4SLinus Torvalds 813e4f95517SFabian Frederick mutex_init(&sbi->s_lock); 8149e9ad5f4SArtem Bityutskiy spin_lock_init(&sbi->work_lock); 8159e9ad5f4SArtem Bityutskiy INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs); 8161da177e4SLinus Torvalds /* 8171da177e4SLinus Torvalds * Set default mount options 8181da177e4SLinus Torvalds * Parse mount options 8191da177e4SLinus Torvalds */ 8201da177e4SLinus Torvalds sbi->s_mount_opt = 0; 8211da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 8221da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 823a9814c5dSFabian Frederick pr_err("wrong mount options\n"); 8241da177e4SLinus Torvalds goto failed; 8251da177e4SLinus Torvalds } 8261da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 8271da177e4SLinus Torvalds if (!silent) 828a9814c5dSFabian Frederick pr_err("You didn't specify the type of your ufs filesystem\n\n" 8291da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 830c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 8311da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 8321da177e4SLinus Torvalds "default is ufstype=old\n"); 8331da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 8341da177e4SLinus Torvalds } 8351da177e4SLinus Torvalds 836252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 837252e211eSMark Fortescue sbi->s_uspi = uspi; 8381da177e4SLinus Torvalds if (!uspi) 8391da177e4SLinus Torvalds goto failed; 840f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 8417b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 8427b4ee73eSEvgeniy 843239e250eSRichard Narron sb->s_maxbytes = MAX_LFS_FILESIZE; 844239e250eSRichard Narron 8451da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 8461da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 847abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 8481da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8491da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8501da177e4SLinus Torvalds uspi->s_fshift = 9; 8511da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8521da177e4SLinus Torvalds uspi->s_sbbase = 0; 8531da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8541da177e4SLinus Torvalds break; 8551da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 856abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 8577b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 8581da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 8591da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 8601da177e4SLinus Torvalds uspi->s_fshift = 9; 8611da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 8621da177e4SLinus Torvalds uspi->s_sbbase = 0; 8631da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8641da177e4SLinus Torvalds break; 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 867abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 8681da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8691da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8701da177e4SLinus Torvalds uspi->s_fshift = 10; 8711da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8721da177e4SLinus Torvalds uspi->s_sbbase = 0; 873252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8741da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 8751da177e4SLinus Torvalds break; 8761da177e4SLinus Torvalds 877252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 878d4beaabdSFabian Frederick UFSD("ufstype=sunos\n"); 879252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 880252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 881252e211eSMark Fortescue uspi->s_fshift = 10; 882252e211eSMark Fortescue uspi->s_sbsize = 2048; 883252e211eSMark Fortescue super_block_size = 2048; 884252e211eSMark Fortescue uspi->s_sbbase = 0; 885252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 886252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 887252e211eSMark Fortescue break; 888252e211eSMark Fortescue 8891da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 890abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 8911da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8921da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8931da177e4SLinus Torvalds uspi->s_fshift = 10; 8941da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8951da177e4SLinus Torvalds uspi->s_sbbase = 0; 896252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8971da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8981da177e4SLinus Torvalds break; 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 901abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 9021da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9031da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9041da177e4SLinus Torvalds uspi->s_fshift = 10; 9051da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9061da177e4SLinus Torvalds uspi->s_sbbase = 0; 9071da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 908bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9091da177e4SLinus Torvalds if (!silent) 910a9814c5dSFabian Frederick pr_info("ufstype=old is supported read-only\n"); 9111751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds break; 9141da177e4SLinus Torvalds 9151da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 916abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 9171da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9181da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9191da177e4SLinus Torvalds uspi->s_fshift = 10; 9201da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9211da177e4SLinus Torvalds uspi->s_sbbase = 0; 9220c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9231da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 924bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9251da177e4SLinus Torvalds if (!silent) 926a9814c5dSFabian Frederick pr_info("ufstype=nextstep is supported read-only\n"); 9271751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds break; 9301da177e4SLinus Torvalds 9311da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 932abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 9331da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 9341da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 9351da177e4SLinus Torvalds uspi->s_fshift = 11; 9361da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9371da177e4SLinus Torvalds uspi->s_sbbase = 0; 9380c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 9391da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 940bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9411da177e4SLinus Torvalds if (!silent) 942a9814c5dSFabian Frederick pr_info("ufstype=nextstep-cd is supported read-only\n"); 9431751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9441da177e4SLinus Torvalds } 9451da177e4SLinus Torvalds break; 9461da177e4SLinus Torvalds 9471da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 948abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 9491da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9501da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9511da177e4SLinus Torvalds uspi->s_fshift = 10; 9521da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9531da177e4SLinus Torvalds uspi->s_sbbase = 0; 954f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 9551da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 956bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9571da177e4SLinus Torvalds if (!silent) 958a9814c5dSFabian Frederick pr_info("ufstype=openstep is supported read-only\n"); 9591751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9601da177e4SLinus Torvalds } 9611da177e4SLinus Torvalds break; 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 964abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 9651da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 9661da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 9671da177e4SLinus Torvalds uspi->s_fshift = 10; 9681da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 9691da177e4SLinus Torvalds uspi->s_sbbase = 0; 9701da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 971bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 9721da177e4SLinus Torvalds if (!silent) 973a9814c5dSFabian Frederick pr_info("ufstype=hp is supported read-only\n"); 9741751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds break; 9771da177e4SLinus Torvalds default: 9781da177e4SLinus Torvalds if (!silent) 979a9814c5dSFabian Frederick pr_err("unknown ufstype\n"); 9801da177e4SLinus Torvalds goto failed; 9811da177e4SLinus Torvalds } 9821da177e4SLinus Torvalds 9831da177e4SLinus Torvalds again: 9841da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 985de771bdaSFabian Frederick pr_err("failed to set blocksize\n"); 9861da177e4SLinus Torvalds goto failed; 9871da177e4SLinus Torvalds } 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds /* 9901da177e4SLinus Torvalds * read ufs super block from device 9911da177e4SLinus Torvalds */ 9927b4ee73eSEvgeniy 9937b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 9947b4ee73eSEvgeniy 9951da177e4SLinus Torvalds if (!ubh) 9961da177e4SLinus Torvalds goto failed; 9971da177e4SLinus Torvalds 9987b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9997b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 10007b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 10011da177e4SLinus Torvalds 1002252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 1003252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 1004252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 1005252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 1006252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 1007252e211eSMark Fortescue flags |= UFS_ST_SUN; 1008252e211eSMark Fortescue } 1009252e211eSMark Fortescue 101096ecff14SAl Viro if ((flags & UFS_ST_MASK) == UFS_ST_44BSD && 101196ecff14SAl Viro uspi->s_postblformat == UFS_42POSTBLFMT) { 101296ecff14SAl Viro if (!silent) 101396ecff14SAl Viro pr_err("this is not a 44bsd filesystem"); 101496ecff14SAl Viro goto failed; 101596ecff14SAl Viro } 101696ecff14SAl Viro 10171da177e4SLinus Torvalds /* 10181da177e4SLinus Torvalds * Check ufs magic number 10191da177e4SLinus Torvalds */ 10201da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 10211da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10221da177e4SLinus Torvalds case UFS_MAGIC: 1023d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10241da177e4SLinus Torvalds case UFS2_MAGIC: 10251da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10261da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10271da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10281da177e4SLinus Torvalds goto magic_found; 10291da177e4SLinus Torvalds } 10301da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 10311da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 10321da177e4SLinus Torvalds case UFS_MAGIC: 1033d27d7a9aSThomas Stewart case UFS_MAGIC_BW: 10341da177e4SLinus Torvalds case UFS2_MAGIC: 10351da177e4SLinus Torvalds case UFS_MAGIC_LFN: 10361da177e4SLinus Torvalds case UFS_MAGIC_FEA: 10371da177e4SLinus Torvalds case UFS_MAGIC_4GB: 10381da177e4SLinus Torvalds goto magic_found; 10391da177e4SLinus Torvalds } 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 10421da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 10431da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 10441da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 10451da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10461da177e4SLinus Torvalds ubh = NULL; 10471da177e4SLinus Torvalds uspi->s_sbbase += 8; 10481da177e4SLinus Torvalds goto again; 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds if (!silent) 105107bc94fdSFabian Frederick pr_err("%s(): bad magic number\n", __func__); 10521da177e4SLinus Torvalds goto failed; 10531da177e4SLinus Torvalds 10541da177e4SLinus Torvalds magic_found: 10551da177e4SLinus Torvalds /* 10561da177e4SLinus Torvalds * Check block and fragment sizes 10571da177e4SLinus Torvalds */ 10581da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 10591da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 10601da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 10611da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10621da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 10631da177e4SLinus Torvalds 10649e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 106507bc94fdSFabian Frederick pr_err("%s(): fragment size %u is not a power of 2\n", 106607bc94fdSFabian Frederick __func__, uspi->s_fsize); 10671da177e4SLinus Torvalds goto failed; 10681da177e4SLinus Torvalds } 10691da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 107007bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too small\n", 107107bc94fdSFabian Frederick __func__, uspi->s_fsize); 10721da177e4SLinus Torvalds goto failed; 10731da177e4SLinus Torvalds } 10741da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 107507bc94fdSFabian Frederick pr_err("%s(): fragment size %u is too large\n", 107607bc94fdSFabian Frederick __func__, uspi->s_fsize); 10771da177e4SLinus Torvalds goto failed; 10781da177e4SLinus Torvalds } 10799e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 108007bc94fdSFabian Frederick pr_err("%s(): block size %u is not a power of 2\n", 108107bc94fdSFabian Frederick __func__, uspi->s_bsize); 10821da177e4SLinus Torvalds goto failed; 10831da177e4SLinus Torvalds } 10841da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 108507bc94fdSFabian Frederick pr_err("%s(): block size %u is too small\n", 108607bc94fdSFabian Frederick __func__, uspi->s_bsize); 10871da177e4SLinus Torvalds goto failed; 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 109007bc94fdSFabian Frederick pr_err("%s(): too many fragments per block (%u)\n", 109107bc94fdSFabian Frederick __func__, uspi->s_bsize / uspi->s_fsize); 10921da177e4SLinus Torvalds goto failed; 10931da177e4SLinus Torvalds } 10941da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 10951da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 10961da177e4SLinus Torvalds ubh = NULL; 10971da177e4SLinus Torvalds block_size = uspi->s_fsize; 10981da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 1099abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 11001da177e4SLinus Torvalds goto again; 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds 1103f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 11043313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 11051da177e4SLinus Torvalds 11061da177e4SLinus Torvalds /* 11071da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 11081da177e4SLinus Torvalds * If not, make it read only. 11091da177e4SLinus Torvalds */ 1110f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 11111da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1112f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1113f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1114f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1115f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 11161da177e4SLinus Torvalds switch(usb1->fs_clean) { 11171da177e4SLinus Torvalds case UFS_FSCLEAN: 1118abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 11191da177e4SLinus Torvalds break; 11201da177e4SLinus Torvalds case UFS_FSSTABLE: 1121abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 11221da177e4SLinus Torvalds break; 1123b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1124b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1125b3a0fd4dSAlex Viskovatoff break; 11261da177e4SLinus Torvalds case UFS_FSOSF1: 1127abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 11281da177e4SLinus Torvalds break; 11291da177e4SLinus Torvalds case UFS_FSACTIVE: 113007bc94fdSFabian Frederick pr_err("%s(): fs is active\n", __func__); 11311751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds case UFS_FSBAD: 113407bc94fdSFabian Frederick pr_err("%s(): fs is bad\n", __func__); 11351751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11361da177e4SLinus Torvalds break; 11371da177e4SLinus Torvalds default: 113807bc94fdSFabian Frederick pr_err("%s(): can't grok fs_clean 0x%x\n", 113907bc94fdSFabian Frederick __func__, usb1->fs_clean); 11401751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11411da177e4SLinus Torvalds break; 11421da177e4SLinus Torvalds } 1143ee3ffd6cSEvgeniy Dushistov } else { 114407bc94fdSFabian Frederick pr_err("%s(): fs needs fsck\n", __func__); 11451751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 11461da177e4SLinus Torvalds } 11471da177e4SLinus Torvalds 11481da177e4SLinus Torvalds /* 11491da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 11501da177e4SLinus Torvalds */ 11511da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1152f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1153123e9cafSChristoph Hellwig 11541da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 11571da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 11581da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 11591da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 11601da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 11611da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 11621da177e4SLinus Torvalds 11631da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1164c596961dSAl Viro uspi->s_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1165c596961dSAl Viro uspi->s_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1166647b7e87SEvgeniy Dushistov } else { 11671da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 11681da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 11691da177e4SLinus Torvalds } 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 11721da177e4SLinus Torvalds /* s_bsize already set */ 11731da177e4SLinus Torvalds /* s_fsize already set */ 11741da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 11751da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 11761da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 11771da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 11781da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 11791da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1180abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1181abf5d15fSEvgeniy Dushistov uspi->s_fshift); 11821da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 11831da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 11841da177e4SLinus Torvalds /* s_sbsize already set */ 11851da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 11861da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 11871da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 11881da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 11891da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 11901da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 11911da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 11921da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 11933313e292SEvgeniy Dushistov 11943313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 11953313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 11963313e292SEvgeniy Dushistov else 11971da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 11983313e292SEvgeniy Dushistov 11991da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 12001da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 12011da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 12021da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 12031da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 12041da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 12051da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1206647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1207647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 12081da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 12091da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 12101da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 12111da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 12121da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 12131da177e4SLinus Torvalds 1214c596961dSAl Viro uspi->s_root_blocks = mul_u64_u32_div(uspi->s_dsize, 1215c596961dSAl Viro uspi->s_minfree, 100); 121677e9ce32SAl Viro if (uspi->s_minfree <= 5) { 121777e9ce32SAl Viro uspi->s_time_to_space = ~0ULL; 121877e9ce32SAl Viro uspi->s_space_to_time = 0; 121977e9ce32SAl Viro usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTSPACE); 122077e9ce32SAl Viro } else { 122177e9ce32SAl Viro uspi->s_time_to_space = (uspi->s_root_blocks / 2) + 1; 122277e9ce32SAl Viro uspi->s_space_to_time = mul_u64_u32_div(uspi->s_dsize, 122377e9ce32SAl Viro uspi->s_minfree - 2, 100) - 1; 122477e9ce32SAl Viro } 1225c596961dSAl Viro 12261da177e4SLinus Torvalds /* 12271da177e4SLinus Torvalds * Compute another frequently used values 12281da177e4SLinus Torvalds */ 12291da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1230abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 12311da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1232abf5d15fSEvgeniy Dushistov else 12331da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1234abf5d15fSEvgeniy Dushistov 12351da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 12361da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 12371da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 12381da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 12391da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 12401da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 12411da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 12421da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 12431da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 12441da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 12451da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 12461da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 124790b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 124890b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 12491da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1250647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 12511da177e4SLinus Torvalds 12529e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 12539e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 12549e6766ccSDuane Griffin else 12559e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 12569e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 12579e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 12589e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 12599e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 12609e6766ccSDuane Griffin } 12616b0d144fSAl Viro sb->s_maxbytes = ufs_max_bytes(sb); 12628de52778SAl Viro sb->s_max_links = UFS_LINK_MAX; 12639e6766ccSDuane Griffin 1264b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1265b55c460dSDavid Howells if (IS_ERR(inode)) { 1266b55c460dSDavid Howells ret = PTR_ERR(inode); 12671da177e4SLinus Torvalds goto failed; 1268b55c460dSDavid Howells } 126948fde701SAl Viro sb->s_root = d_make_root(inode); 1270b55c460dSDavid Howells if (!sb->s_root) { 1271b55c460dSDavid Howells ret = -ENOMEM; 127248fde701SAl Viro goto failed; 1273b55c460dSDavid Howells } 12741da177e4SLinus Torvalds 1275ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 12761da177e4SLinus Torvalds /* 12771da177e4SLinus Torvalds * Read cylinder group structures 12781da177e4SLinus Torvalds */ 1279bc98a42cSDavid Howells if (!sb_rdonly(sb)) 12801da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 12811da177e4SLinus Torvalds goto failed; 12821da177e4SLinus Torvalds 1283abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12841da177e4SLinus Torvalds return 0; 12851da177e4SLinus Torvalds 12861da177e4SLinus Torvalds failed: 1287f99d49adSJesper Juhl if (ubh) 1288f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1289f99d49adSJesper Juhl kfree (uspi); 1290f99d49adSJesper Juhl kfree(sbi); 12911da177e4SLinus Torvalds sb->s_fs_info = NULL; 1292abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1293b55c460dSDavid Howells return ret; 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds failed_nomem: 1296abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 12971da177e4SLinus Torvalds return -ENOMEM; 12981da177e4SLinus Torvalds } 12991da177e4SLinus Torvalds 13001da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 13011da177e4SLinus Torvalds { 13021da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 13031da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 13041da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 13051da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 13061da177e4SLinus Torvalds unsigned flags; 13071da177e4SLinus Torvalds 130802b9984dSTheodore Ts'o sync_filesystem(sb); 1309cdd9eefdSFabian Frederick mutex_lock(&UFS_SB(sb)->s_lock); 13101da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 13111da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 13127b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 13137b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 13141da177e4SLinus Torvalds 13151da177e4SLinus Torvalds /* 13161da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 13171da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 13181da177e4SLinus Torvalds */ 13191da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 13201da177e4SLinus Torvalds new_mount_opt = 0; 13211da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1322bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1323cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13241da177e4SLinus Torvalds return -EINVAL; 1325bbd6851aSAl Viro } 13261da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 13271da177e4SLinus Torvalds new_mount_opt |= ufstype; 1328ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 1329a9814c5dSFabian Frederick pr_err("ufstype can't be changed during remount\n"); 1330cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13311da177e4SLinus Torvalds return -EINVAL; 13321da177e4SLinus Torvalds } 13331da177e4SLinus Torvalds 13341751e8a6SLinus Torvalds if ((bool)(*mount_flags & SB_RDONLY) == sb_rdonly(sb)) { 13351da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1336cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13371da177e4SLinus Torvalds return 0; 13381da177e4SLinus Torvalds } 13391da177e4SLinus Torvalds 13401da177e4SLinus Torvalds /* 13411da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 13421da177e4SLinus Torvalds */ 13431751e8a6SLinus Torvalds if (*mount_flags & SB_RDONLY) { 1344ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 1345a3fda0ffSArnd Bergmann usb1->fs_time = ufs_get_seconds(sb); 13461da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1347252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13481da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13491da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13501da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13519695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13521751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 1353ee3ffd6cSEvgeniy Dushistov } else { 13541da177e4SLinus Torvalds /* 13551da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13561da177e4SLinus Torvalds */ 13571da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 1358a9814c5dSFabian Frederick pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n"); 1359cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13601da177e4SLinus Torvalds return -EINVAL; 13611da177e4SLinus Torvalds #else 13621da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1363252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13641da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1365cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1366cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 1367a9814c5dSFabian Frederick pr_err("this ufstype is read-only supported\n"); 1368cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13691da177e4SLinus Torvalds return -EINVAL; 13701da177e4SLinus Torvalds } 13711da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 1372a9814c5dSFabian Frederick pr_err("failed during remounting\n"); 1373cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13741da177e4SLinus Torvalds return -EPERM; 13751da177e4SLinus Torvalds } 13761751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 13771da177e4SLinus Torvalds #endif 13781da177e4SLinus Torvalds } 13791da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1380cdd9eefdSFabian Frederick mutex_unlock(&UFS_SB(sb)->s_lock); 13811da177e4SLinus Torvalds return 0; 13821da177e4SLinus Torvalds } 13831da177e4SLinus Torvalds 138434c80b1dSAl Viro static int ufs_show_options(struct seq_file *seq, struct dentry *root) 13852a9807c0SEvgeniy Dushistov { 138634c80b1dSAl Viro struct ufs_sb_info *sbi = UFS_SB(root->d_sb); 13872a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1388a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13892a9807c0SEvgeniy Dushistov 13902a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13912a9807c0SEvgeniy Dushistov ++tp; 13922a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13932a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13942a9807c0SEvgeniy Dushistov 13952a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13962a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13972a9807c0SEvgeniy Dushistov ++tp; 13982a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13992a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 14002a9807c0SEvgeniy Dushistov 14012a9807c0SEvgeniy Dushistov return 0; 14022a9807c0SEvgeniy Dushistov } 14032a9807c0SEvgeniy Dushistov 1404726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 14051da177e4SLinus Torvalds { 1406726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1407647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1408647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 1409647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 141041d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 14111da177e4SLinus Torvalds 1412dff7cfd3SAl Viro mutex_lock(&UFS_SB(sb)->s_lock); 1413647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 14141da177e4SLinus Torvalds 1415c596961dSAl Viro if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 14161da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1417c596961dSAl Viro else 14181da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 1419c596961dSAl Viro 14201da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 1421c596961dSAl Viro buf->f_bfree = ufs_freefrags(uspi); 1422ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14231da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 1424c596961dSAl Viro buf->f_bavail = (buf->f_bfree > uspi->s_root_blocks) 1425c596961dSAl Viro ? (buf->f_bfree - uspi->s_root_blocks) : 0; 14261da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14271da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 142841d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 142941d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 14301da177e4SLinus Torvalds 1431dff7cfd3SAl Viro mutex_unlock(&UFS_SB(sb)->s_lock); 14321da177e4SLinus Torvalds 14331da177e4SLinus Torvalds return 0; 14341da177e4SLinus Torvalds } 14351da177e4SLinus Torvalds 1436e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14371da177e4SLinus Torvalds 14381da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14391da177e4SLinus Torvalds { 14401da177e4SLinus Torvalds struct ufs_inode_info *ei; 144161da3ae2SFabian Frederick 144261da3ae2SFabian Frederick ei = kmem_cache_alloc(ufs_inode_cachep, GFP_NOFS); 14431da177e4SLinus Torvalds if (!ei) 14441da177e4SLinus Torvalds return NULL; 144561da3ae2SFabian Frederick 1446bb8c2d66SJeff Layton inode_set_iversion(&ei->vfs_inode, 1); 1447724bb09fSAl Viro seqlock_init(&ei->meta_lock); 1448724bb09fSAl Viro mutex_init(&ei->truncate_mutex); 14491da177e4SLinus Torvalds return &ei->vfs_inode; 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 145298835e88SAl Viro static void ufs_free_in_core_inode(struct inode *inode) 1453fa0d7e3dSNick Piggin { 1454fa0d7e3dSNick Piggin kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 1455fa0d7e3dSNick Piggin } 1456fa0d7e3dSNick Piggin 145751cc5068SAlexey Dobriyan static void init_once(void *foo) 14581da177e4SLinus Torvalds { 14591da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14601da177e4SLinus Torvalds 14611da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14621da177e4SLinus Torvalds } 14631da177e4SLinus Torvalds 146476ee4735SFabian Frederick static int __init init_inodecache(void) 14651da177e4SLinus Torvalds { 1466df5f3cfcSDavid Windsor ufs_inode_cachep = kmem_cache_create_usercopy("ufs_inode_cache", 1467df5f3cfcSDavid Windsor sizeof(struct ufs_inode_info), 0, 1468df5f3cfcSDavid Windsor (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD| 1469df5f3cfcSDavid Windsor SLAB_ACCOUNT), 1470df5f3cfcSDavid Windsor offsetof(struct ufs_inode_info, i_u1.i_symlink), 1471df5f3cfcSDavid Windsor sizeof_field(struct ufs_inode_info, 1472df5f3cfcSDavid Windsor i_u1.i_symlink), 147320c2df83SPaul Mundt init_once); 14741da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14751da177e4SLinus Torvalds return -ENOMEM; 14761da177e4SLinus Torvalds return 0; 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 14791da177e4SLinus Torvalds static void destroy_inodecache(void) 14801da177e4SLinus Torvalds { 14818c0a8537SKirill A. Shutemov /* 14828c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 14838c0a8537SKirill A. Shutemov * destroy cache. 14848c0a8537SKirill A. Shutemov */ 14858c0a8537SKirill A. Shutemov rcu_barrier(); 14861a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14871da177e4SLinus Torvalds } 14881da177e4SLinus Torvalds 1489ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14901da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 149198835e88SAl Viro .free_inode = ufs_free_in_core_inode, 14921da177e4SLinus Torvalds .write_inode = ufs_write_inode, 149358e8268cSAl Viro .evict_inode = ufs_evict_inode, 14941da177e4SLinus Torvalds .put_super = ufs_put_super, 14958c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14961da177e4SLinus Torvalds .statfs = ufs_statfs, 14971da177e4SLinus Torvalds .remount_fs = ufs_remount, 14982a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 14991da177e4SLinus Torvalds }; 15001da177e4SLinus Torvalds 1501152a0836SAl Viro static struct dentry *ufs_mount(struct file_system_type *fs_type, 1502152a0836SAl Viro int flags, const char *dev_name, void *data) 15031da177e4SLinus Torvalds { 1504152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 15071da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 15081da177e4SLinus Torvalds .owner = THIS_MODULE, 15091da177e4SLinus Torvalds .name = "ufs", 1510152a0836SAl Viro .mount = ufs_mount, 15111da177e4SLinus Torvalds .kill_sb = kill_block_super, 15121da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15131da177e4SLinus Torvalds }; 15147f78e035SEric W. Biederman MODULE_ALIAS_FS("ufs"); 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15171da177e4SLinus Torvalds { 15181da177e4SLinus Torvalds int err = init_inodecache(); 15191da177e4SLinus Torvalds if (err) 15201da177e4SLinus Torvalds goto out1; 15211da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15221da177e4SLinus Torvalds if (err) 15231da177e4SLinus Torvalds goto out; 15241da177e4SLinus Torvalds return 0; 15251da177e4SLinus Torvalds out: 15261da177e4SLinus Torvalds destroy_inodecache(); 15271da177e4SLinus Torvalds out1: 15281da177e4SLinus Torvalds return err; 15291da177e4SLinus Torvalds } 15301da177e4SLinus Torvalds 15311da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 15321da177e4SLinus Torvalds { 15331da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 15341da177e4SLinus Torvalds destroy_inodecache(); 15351da177e4SLinus Torvalds } 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds module_init(init_ufs_fs) 15381da177e4SLinus Torvalds module_exit(exit_ufs_fs) 15391da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1540