11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/ufs/super.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1998 51da177e4SLinus Torvalds * Daniel Pirkl <daniel.pirkl@email.cz> 61da177e4SLinus Torvalds * Charles University, Faculty of Mathematics and Physics 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds /* Derived from 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * linux/fs/ext2/super.c 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994, 1995 141da177e4SLinus Torvalds * Remy Card (card@masi.ibp.fr) 151da177e4SLinus Torvalds * Laboratoire MASI - Institut Blaise Pascal 161da177e4SLinus Torvalds * Universite Pierre et Marie Curie (Paris VI) 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * from 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * linux/fs/minix/inode.c 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds * Big-endian to little-endian byte-swapping/bitmaps by 251da177e4SLinus Torvalds * David S. Miller (davem@caip.rutgers.edu), 1995 261da177e4SLinus Torvalds */ 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds /* 291da177e4SLinus Torvalds * Inspired by 301da177e4SLinus Torvalds * 311da177e4SLinus Torvalds * linux/fs/ufs/super.c 321da177e4SLinus Torvalds * 331da177e4SLinus Torvalds * Copyright (C) 1996 341da177e4SLinus Torvalds * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) 351da177e4SLinus Torvalds * Laboratory for Computer Science Research Computing Facility 361da177e4SLinus Torvalds * Rutgers, The State University of New Jersey 371da177e4SLinus Torvalds * 381da177e4SLinus Torvalds * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 391da177e4SLinus Torvalds * 401da177e4SLinus Torvalds * Kernel module support added on 96/04/26 by 411da177e4SLinus Torvalds * Stefan Reinauer <stepan@home.culture.mipt.ru> 421da177e4SLinus Torvalds * 431da177e4SLinus Torvalds * Module usage counts added on 96/04/29 by 44f762dd68SGertjan van Wingerde * Gertjan van Wingerde <gwingerde@gmail.com> 451da177e4SLinus Torvalds * 461da177e4SLinus Torvalds * Clean swab support on 19970406 by 471da177e4SLinus Torvalds * Francois-Rene Rideau <fare@tunes.org> 481da177e4SLinus Torvalds * 491da177e4SLinus Torvalds * 4.4BSD (FreeBSD) support added on February 1st 1998 by 501da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk> partially based 511da177e4SLinus Torvalds * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. 521da177e4SLinus Torvalds * 531da177e4SLinus Torvalds * NeXTstep support added on February 5th 1998 by 541da177e4SLinus Torvalds * Niels Kristian Bech Jensen <nkbj@image.dk>. 551da177e4SLinus Torvalds * 561da177e4SLinus Torvalds * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 571da177e4SLinus Torvalds * 581da177e4SLinus Torvalds * HP/UX hfs filesystem support added by 591da177e4SLinus Torvalds * Martin K. Petersen <mkp@mkp.net>, August 1999 601da177e4SLinus Torvalds * 611da177e4SLinus Torvalds * UFS2 (of FreeBSD 5.x) support added by 621da177e4SLinus Torvalds * Niraj Kumar <niraj17@iitbombay.org>, Jan 2004 631da177e4SLinus Torvalds * 64cbcae39fSEvgeniy Dushistov * UFS2 write support added by 65cbcae39fSEvgeniy Dushistov * Evgeniy Dushistov <dushistov@mail.ru>, 2007 661da177e4SLinus Torvalds */ 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds 69f3e2a520SAlexey Dobriyan #include <linux/exportfs.h> 701da177e4SLinus Torvalds #include <linux/module.h> 711da177e4SLinus Torvalds #include <linux/bitops.h> 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds #include <stdarg.h> 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds #include <asm/uaccess.h> 761da177e4SLinus Torvalds #include <asm/system.h> 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds #include <linux/errno.h> 791da177e4SLinus Torvalds #include <linux/fs.h> 8074abb989SJan Kara #include <linux/quotaops.h> 811da177e4SLinus Torvalds #include <linux/slab.h> 821da177e4SLinus Torvalds #include <linux/time.h> 831da177e4SLinus Torvalds #include <linux/stat.h> 841da177e4SLinus Torvalds #include <linux/string.h> 851da177e4SLinus Torvalds #include <linux/blkdev.h> 861da177e4SLinus Torvalds #include <linux/init.h> 871da177e4SLinus Torvalds #include <linux/parser.h> 881da177e4SLinus Torvalds #include <linux/smp_lock.h> 891da177e4SLinus Torvalds #include <linux/buffer_head.h> 901da177e4SLinus Torvalds #include <linux/vfs.h> 919e8c4273Svignesh babu #include <linux/log2.h> 922a9807c0SEvgeniy Dushistov #include <linux/mount.h> 932a9807c0SEvgeniy Dushistov #include <linux/seq_file.h> 941da177e4SLinus Torvalds 95e5420598SMike Frysinger #include "ufs_fs.h" 96bcd6d4ecSChristoph Hellwig #include "ufs.h" 971da177e4SLinus Torvalds #include "swab.h" 981da177e4SLinus Torvalds #include "util.h" 991da177e4SLinus Torvalds 100f3e2a520SAlexey Dobriyan static struct inode *ufs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) 101f3e2a520SAlexey Dobriyan { 102f3e2a520SAlexey Dobriyan struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 103f3e2a520SAlexey Dobriyan struct inode *inode; 104f3e2a520SAlexey Dobriyan 105f3e2a520SAlexey Dobriyan if (ino < UFS_ROOTINO || ino > uspi->s_ncg * uspi->s_ipg) 106f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 107f3e2a520SAlexey Dobriyan 108f3e2a520SAlexey Dobriyan inode = ufs_iget(sb, ino); 109f3e2a520SAlexey Dobriyan if (IS_ERR(inode)) 110f3e2a520SAlexey Dobriyan return ERR_CAST(inode); 111f3e2a520SAlexey Dobriyan if (generation && inode->i_generation != generation) { 112f3e2a520SAlexey Dobriyan iput(inode); 113f3e2a520SAlexey Dobriyan return ERR_PTR(-ESTALE); 114f3e2a520SAlexey Dobriyan } 115f3e2a520SAlexey Dobriyan return inode; 116f3e2a520SAlexey Dobriyan } 117f3e2a520SAlexey Dobriyan 118f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_dentry(struct super_block *sb, struct fid *fid, 119f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 120f3e2a520SAlexey Dobriyan { 121f3e2a520SAlexey Dobriyan return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 122f3e2a520SAlexey Dobriyan } 123f3e2a520SAlexey Dobriyan 124f3e2a520SAlexey Dobriyan static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid, 125f3e2a520SAlexey Dobriyan int fh_len, int fh_type) 126f3e2a520SAlexey Dobriyan { 127f3e2a520SAlexey Dobriyan return generic_fh_to_parent(sb, fid, fh_len, fh_type, ufs_nfs_get_inode); 128f3e2a520SAlexey Dobriyan } 129f3e2a520SAlexey Dobriyan 130f3e2a520SAlexey Dobriyan static struct dentry *ufs_get_parent(struct dentry *child) 131f3e2a520SAlexey Dobriyan { 132f3e2a520SAlexey Dobriyan struct qstr dot_dot = { 133f3e2a520SAlexey Dobriyan .name = "..", 134f3e2a520SAlexey Dobriyan .len = 2, 135f3e2a520SAlexey Dobriyan }; 136f3e2a520SAlexey Dobriyan ino_t ino; 137f3e2a520SAlexey Dobriyan 138f3e2a520SAlexey Dobriyan ino = ufs_inode_by_name(child->d_inode, &dot_dot); 139f3e2a520SAlexey Dobriyan if (!ino) 140f3e2a520SAlexey Dobriyan return ERR_PTR(-ENOENT); 141f3e2a520SAlexey Dobriyan return d_obtain_alias(ufs_iget(child->d_inode->i_sb, ino)); 142f3e2a520SAlexey Dobriyan } 143f3e2a520SAlexey Dobriyan 144f3e2a520SAlexey Dobriyan static const struct export_operations ufs_export_ops = { 145f3e2a520SAlexey Dobriyan .fh_to_dentry = ufs_fh_to_dentry, 146f3e2a520SAlexey Dobriyan .fh_to_parent = ufs_fh_to_parent, 147f3e2a520SAlexey Dobriyan .get_parent = ufs_get_parent, 148f3e2a520SAlexey Dobriyan }; 149f3e2a520SAlexey Dobriyan 150abf5d15fSEvgeniy Dushistov #ifdef CONFIG_UFS_DEBUG 1511da177e4SLinus Torvalds /* 1521da177e4SLinus Torvalds * Print contents of ufs_super_block, useful for debugging 1531da177e4SLinus Torvalds */ 1543313e292SEvgeniy Dushistov static void ufs_print_super_stuff(struct super_block *sb, 1551da177e4SLinus Torvalds struct ufs_super_block_first *usb1, 1561da177e4SLinus Torvalds struct ufs_super_block_second *usb2, 1571da177e4SLinus Torvalds struct ufs_super_block_third *usb3) 1581da177e4SLinus Torvalds { 1593313e292SEvgeniy Dushistov u32 magic = fs32_to_cpu(sb, usb3->fs_magic); 1603313e292SEvgeniy Dushistov 1611da177e4SLinus Torvalds printk("ufs_print_super_stuff\n"); 1623313e292SEvgeniy Dushistov printk(" magic: 0x%x\n", magic); 1633313e292SEvgeniy Dushistov if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) { 164647b7e87SEvgeniy Dushistov printk(" fs_size: %llu\n", (unsigned long long) 165647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size)); 166647b7e87SEvgeniy Dushistov printk(" fs_dsize: %llu\n", (unsigned long long) 167647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize)); 168647b7e87SEvgeniy Dushistov printk(" bsize: %u\n", 169647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_bsize)); 170647b7e87SEvgeniy Dushistov printk(" fsize: %u\n", 171647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsize)); 172647b7e87SEvgeniy Dushistov printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname); 173647b7e87SEvgeniy Dushistov printk(" fs_sblockloc: %llu\n", (unsigned long long) 174647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc)); 175647b7e87SEvgeniy Dushistov printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long) 176647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir)); 177647b7e87SEvgeniy Dushistov printk(" cs_nbfree(No of free blocks): %llu\n", 178647b7e87SEvgeniy Dushistov (unsigned long long) 179647b7e87SEvgeniy Dushistov fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)); 1803313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n", 1813313e292SEvgeniy Dushistov (unsigned long long) 1823313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree)); 1833313e292SEvgeniy Dushistov printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n", 1843313e292SEvgeniy Dushistov (unsigned long long) 1853313e292SEvgeniy Dushistov fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree)); 18690b315afSEvgeniy Dushistov printk(KERN_INFO" fs_maxsymlinklen: %u\n", 18790b315afSEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen)); 188647b7e87SEvgeniy Dushistov } else { 1891da177e4SLinus Torvalds printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 1901da177e4SLinus Torvalds printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 1911da177e4SLinus Torvalds printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 1921da177e4SLinus Torvalds printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 193647b7e87SEvgeniy Dushistov printk(" cgoffset: %u\n", 194647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cgoffset)); 195647b7e87SEvgeniy Dushistov printk(" ~cgmask: 0x%x\n", 196647b7e87SEvgeniy Dushistov ~fs32_to_cpu(sb, usb1->fs_cgmask)); 1971da177e4SLinus Torvalds printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 1981da177e4SLinus Torvalds printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 1991da177e4SLinus Torvalds printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 2001da177e4SLinus Torvalds printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 2011da177e4SLinus Torvalds printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 2021da177e4SLinus Torvalds printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 203647b7e87SEvgeniy Dushistov printk(" fragshift: %u\n", 204647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fragshift)); 2051da177e4SLinus Torvalds printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 2061da177e4SLinus Torvalds printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 2071da177e4SLinus Torvalds printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 2081da177e4SLinus Torvalds printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 2091da177e4SLinus Torvalds printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 2101da177e4SLinus Torvalds printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 2111da177e4SLinus Torvalds printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 2121da177e4SLinus Torvalds printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 2131da177e4SLinus Torvalds printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 2141da177e4SLinus Torvalds printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 215647b7e87SEvgeniy Dushistov printk(" fstodb: %u\n", 216647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_fsbtodb)); 2171da177e4SLinus Torvalds printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 218647b7e87SEvgeniy Dushistov printk(" ndir %u\n", 219647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 220647b7e87SEvgeniy Dushistov printk(" nifree %u\n", 221647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 222647b7e87SEvgeniy Dushistov printk(" nbfree %u\n", 223647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 224647b7e87SEvgeniy Dushistov printk(" nffree %u\n", 225647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 2261da177e4SLinus Torvalds } 2271da177e4SLinus Torvalds printk("\n"); 2281da177e4SLinus Torvalds } 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds /* 2311da177e4SLinus Torvalds * Print contents of ufs_cylinder_group, useful for debugging 2321da177e4SLinus Torvalds */ 233647b7e87SEvgeniy Dushistov static void ufs_print_cylinder_stuff(struct super_block *sb, 234647b7e87SEvgeniy Dushistov struct ufs_cylinder_group *cg) 2351da177e4SLinus Torvalds { 2361da177e4SLinus Torvalds printk("\nufs_print_cylinder_stuff\n"); 23796710b29SAndrew Morton printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 2381da177e4SLinus Torvalds printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); 2391da177e4SLinus Torvalds printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); 2401da177e4SLinus Torvalds printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); 2411da177e4SLinus Torvalds printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); 2421da177e4SLinus Torvalds printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); 2431da177e4SLinus Torvalds printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); 2441da177e4SLinus Torvalds printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); 2451da177e4SLinus Torvalds printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); 2461da177e4SLinus Torvalds printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); 2471da177e4SLinus Torvalds printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); 2481da177e4SLinus Torvalds printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); 2491da177e4SLinus Torvalds printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); 2501da177e4SLinus Torvalds printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); 2511da177e4SLinus Torvalds printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", 2521da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), 2531da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), 2541da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), 2551da177e4SLinus Torvalds fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); 2561da177e4SLinus Torvalds printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); 2571da177e4SLinus Torvalds printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); 2581da177e4SLinus Torvalds printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 2591da177e4SLinus Torvalds printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 2601da177e4SLinus Torvalds printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 261647b7e87SEvgeniy Dushistov printk(" clustersumoff %u\n", 262647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 263647b7e87SEvgeniy Dushistov printk(" clusteroff %u\n", 264647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 265647b7e87SEvgeniy Dushistov printk(" nclusterblks %u\n", 266647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 2671da177e4SLinus Torvalds printk("\n"); 2681da177e4SLinus Torvalds } 269647b7e87SEvgeniy Dushistov #else 2703313e292SEvgeniy Dushistov # define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/ 271647b7e87SEvgeniy Dushistov # define ufs_print_cylinder_stuff(sb, cg) /**/ 272abf5d15fSEvgeniy Dushistov #endif /* CONFIG_UFS_DEBUG */ 2731da177e4SLinus Torvalds 274ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops; 2751da177e4SLinus Torvalds 2761da177e4SLinus Torvalds static char error_buf[1024]; 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds void ufs_error (struct super_block * sb, const char * function, 2791da177e4SLinus Torvalds const char * fmt, ...) 2801da177e4SLinus Torvalds { 2811da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 2821da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 2831da177e4SLinus Torvalds va_list args; 2841da177e4SLinus Torvalds 2851da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 2867b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 2891da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 2909695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 2911da177e4SLinus Torvalds sb->s_dirt = 1; 2921da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds va_start (args, fmt); 2954a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 2961da177e4SLinus Torvalds va_end (args); 2971da177e4SLinus Torvalds switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) { 2981da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_PANIC: 2991da177e4SLinus Torvalds panic ("UFS-fs panic (device %s): %s: %s\n", 3001da177e4SLinus Torvalds sb->s_id, function, error_buf); 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_LOCK: 3031da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_UMOUNT: 3041da177e4SLinus Torvalds case UFS_MOUNT_ONERROR_REPAIR: 3051da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", 3061da177e4SLinus Torvalds sb->s_id, function, error_buf); 3071da177e4SLinus Torvalds } 3081da177e4SLinus Torvalds } 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds void ufs_panic (struct super_block * sb, const char * function, 3111da177e4SLinus Torvalds const char * fmt, ...) 3121da177e4SLinus Torvalds { 3131da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 3141da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 3151da177e4SLinus Torvalds va_list args; 3161da177e4SLinus Torvalds 317337eb00aSAlessio Igor Bogani lock_kernel(); 3181da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 3197b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 3201da177e4SLinus Torvalds 3211da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 3221da177e4SLinus Torvalds usb1->fs_clean = UFS_FSBAD; 3239695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 3241da177e4SLinus Torvalds sb->s_dirt = 1; 3251da177e4SLinus Torvalds } 3261da177e4SLinus Torvalds va_start (args, fmt); 3274a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3281da177e4SLinus Torvalds va_end (args); 3291da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 3301da177e4SLinus Torvalds printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", 3311da177e4SLinus Torvalds sb->s_id, function, error_buf); 3321da177e4SLinus Torvalds } 3331da177e4SLinus Torvalds 3341da177e4SLinus Torvalds void ufs_warning (struct super_block * sb, const char * function, 3351da177e4SLinus Torvalds const char * fmt, ...) 3361da177e4SLinus Torvalds { 3371da177e4SLinus Torvalds va_list args; 3381da177e4SLinus Torvalds 3391da177e4SLinus Torvalds va_start (args, fmt); 3404a6e617aSAlexey Dobriyan vsnprintf (error_buf, sizeof(error_buf), fmt, args); 3411da177e4SLinus Torvalds va_end (args); 3421da177e4SLinus Torvalds printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", 3431da177e4SLinus Torvalds sb->s_id, function, error_buf); 3441da177e4SLinus Torvalds } 3451da177e4SLinus Torvalds 3461da177e4SLinus Torvalds enum { 3472a9807c0SEvgeniy Dushistov Opt_type_old = UFS_MOUNT_UFSTYPE_OLD, 3482a9807c0SEvgeniy Dushistov Opt_type_sunx86 = UFS_MOUNT_UFSTYPE_SUNx86, 3492a9807c0SEvgeniy Dushistov Opt_type_sun = UFS_MOUNT_UFSTYPE_SUN, 3502a9807c0SEvgeniy Dushistov Opt_type_sunos = UFS_MOUNT_UFSTYPE_SUNOS, 3512a9807c0SEvgeniy Dushistov Opt_type_44bsd = UFS_MOUNT_UFSTYPE_44BSD, 3522a9807c0SEvgeniy Dushistov Opt_type_ufs2 = UFS_MOUNT_UFSTYPE_UFS2, 3532a9807c0SEvgeniy Dushistov Opt_type_hp = UFS_MOUNT_UFSTYPE_HP, 3542a9807c0SEvgeniy Dushistov Opt_type_nextstepcd = UFS_MOUNT_UFSTYPE_NEXTSTEP_CD, 3552a9807c0SEvgeniy Dushistov Opt_type_nextstep = UFS_MOUNT_UFSTYPE_NEXTSTEP, 3562a9807c0SEvgeniy Dushistov Opt_type_openstep = UFS_MOUNT_UFSTYPE_OPENSTEP, 3572a9807c0SEvgeniy Dushistov Opt_onerror_panic = UFS_MOUNT_ONERROR_PANIC, 3582a9807c0SEvgeniy Dushistov Opt_onerror_lock = UFS_MOUNT_ONERROR_LOCK, 3592a9807c0SEvgeniy Dushistov Opt_onerror_umount = UFS_MOUNT_ONERROR_UMOUNT, 3602a9807c0SEvgeniy Dushistov Opt_onerror_repair = UFS_MOUNT_ONERROR_REPAIR, 3612a9807c0SEvgeniy Dushistov Opt_err 3621da177e4SLinus Torvalds }; 3631da177e4SLinus Torvalds 364a447c093SSteven Whitehouse static const match_table_t tokens = { 3651da177e4SLinus Torvalds {Opt_type_old, "ufstype=old"}, 3661da177e4SLinus Torvalds {Opt_type_sunx86, "ufstype=sunx86"}, 3671da177e4SLinus Torvalds {Opt_type_sun, "ufstype=sun"}, 368252e211eSMark Fortescue {Opt_type_sunos, "ufstype=sunos"}, 3691da177e4SLinus Torvalds {Opt_type_44bsd, "ufstype=44bsd"}, 3701da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=ufs2"}, 3711da177e4SLinus Torvalds {Opt_type_ufs2, "ufstype=5xbsd"}, 3721da177e4SLinus Torvalds {Opt_type_hp, "ufstype=hp"}, 3731da177e4SLinus Torvalds {Opt_type_nextstepcd, "ufstype=nextstep-cd"}, 3741da177e4SLinus Torvalds {Opt_type_nextstep, "ufstype=nextstep"}, 3751da177e4SLinus Torvalds {Opt_type_openstep, "ufstype=openstep"}, 3762a9807c0SEvgeniy Dushistov /*end of possible ufs types */ 3771da177e4SLinus Torvalds {Opt_onerror_panic, "onerror=panic"}, 3781da177e4SLinus Torvalds {Opt_onerror_lock, "onerror=lock"}, 3791da177e4SLinus Torvalds {Opt_onerror_umount, "onerror=umount"}, 3801da177e4SLinus Torvalds {Opt_onerror_repair, "onerror=repair"}, 3811da177e4SLinus Torvalds {Opt_err, NULL} 3821da177e4SLinus Torvalds }; 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds static int ufs_parse_options (char * options, unsigned * mount_options) 3851da177e4SLinus Torvalds { 3861da177e4SLinus Torvalds char * p; 3871da177e4SLinus Torvalds 388abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 3891da177e4SLinus Torvalds 3901da177e4SLinus Torvalds if (!options) 3911da177e4SLinus Torvalds return 1; 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds while ((p = strsep(&options, ",")) != NULL) { 3941da177e4SLinus Torvalds substring_t args[MAX_OPT_ARGS]; 3951da177e4SLinus Torvalds int token; 3961da177e4SLinus Torvalds if (!*p) 3971da177e4SLinus Torvalds continue; 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds token = match_token(p, tokens, args); 4001da177e4SLinus Torvalds switch (token) { 4011da177e4SLinus Torvalds case Opt_type_old: 4021da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4031da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OLD); 4041da177e4SLinus Torvalds break; 4051da177e4SLinus Torvalds case Opt_type_sunx86: 4061da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4071da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUNx86); 4081da177e4SLinus Torvalds break; 4091da177e4SLinus Torvalds case Opt_type_sun: 4101da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4111da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_SUN); 4121da177e4SLinus Torvalds break; 413252e211eSMark Fortescue case Opt_type_sunos: 414252e211eSMark Fortescue ufs_clear_opt(*mount_options, UFSTYPE); 415252e211eSMark Fortescue ufs_set_opt(*mount_options, UFSTYPE_SUNOS); 416252e211eSMark Fortescue break; 4171da177e4SLinus Torvalds case Opt_type_44bsd: 4181da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4191da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_44BSD); 4201da177e4SLinus Torvalds break; 4211da177e4SLinus Torvalds case Opt_type_ufs2: 4221da177e4SLinus Torvalds ufs_clear_opt(*mount_options, UFSTYPE); 4231da177e4SLinus Torvalds ufs_set_opt(*mount_options, UFSTYPE_UFS2); 4241da177e4SLinus Torvalds break; 4251da177e4SLinus Torvalds case Opt_type_hp: 4261da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4271da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_HP); 4281da177e4SLinus Torvalds break; 4291da177e4SLinus Torvalds case Opt_type_nextstepcd: 4301da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4311da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); 4321da177e4SLinus Torvalds break; 4331da177e4SLinus Torvalds case Opt_type_nextstep: 4341da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4351da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); 4361da177e4SLinus Torvalds break; 4371da177e4SLinus Torvalds case Opt_type_openstep: 4381da177e4SLinus Torvalds ufs_clear_opt (*mount_options, UFSTYPE); 4391da177e4SLinus Torvalds ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); 4401da177e4SLinus Torvalds break; 4411da177e4SLinus Torvalds case Opt_onerror_panic: 4421da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4431da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_PANIC); 4441da177e4SLinus Torvalds break; 4451da177e4SLinus Torvalds case Opt_onerror_lock: 4461da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4471da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_LOCK); 4481da177e4SLinus Torvalds break; 4491da177e4SLinus Torvalds case Opt_onerror_umount: 4501da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4511da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_UMOUNT); 4521da177e4SLinus Torvalds break; 4531da177e4SLinus Torvalds case Opt_onerror_repair: 4541da177e4SLinus Torvalds printk("UFS-fs: Unable to do repair on error, " 4551da177e4SLinus Torvalds "will lock lock instead\n"); 4561da177e4SLinus Torvalds ufs_clear_opt (*mount_options, ONERROR); 4571da177e4SLinus Torvalds ufs_set_opt (*mount_options, ONERROR_REPAIR); 4581da177e4SLinus Torvalds break; 4591da177e4SLinus Torvalds default: 4601da177e4SLinus Torvalds printk("UFS-fs: Invalid option: \"%s\" " 4611da177e4SLinus Torvalds "or missing value\n", p); 4621da177e4SLinus Torvalds return 0; 4631da177e4SLinus Torvalds } 4641da177e4SLinus Torvalds } 4651da177e4SLinus Torvalds return 1; 4661da177e4SLinus Torvalds } 4671da177e4SLinus Torvalds 4681da177e4SLinus Torvalds /* 469ee3ffd6cSEvgeniy Dushistov * Diffrent types of UFS hold fs_cstotal in different 470ee3ffd6cSEvgeniy Dushistov * places, and use diffrent data structure for it. 471ee3ffd6cSEvgeniy Dushistov * To make things simplier we just copy fs_cstotal to ufs_sb_private_info 472ee3ffd6cSEvgeniy Dushistov */ 473ee3ffd6cSEvgeniy Dushistov static void ufs_setup_cstotal(struct super_block *sb) 474ee3ffd6cSEvgeniy Dushistov { 475ee3ffd6cSEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(sb); 476ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 477ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 478ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 479ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 480ee3ffd6cSEvgeniy Dushistov unsigned mtype = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 481ee3ffd6cSEvgeniy Dushistov 482ee3ffd6cSEvgeniy Dushistov UFSD("ENTER, mtype=%u\n", mtype); 483ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 484ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 485ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 486ee3ffd6cSEvgeniy Dushistov 487ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 488ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 489ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 490ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 491ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir); 492ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree); 493ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree); 494ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree); 495ee3ffd6cSEvgeniy Dushistov } else { 496ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_ndir = fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir); 497ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nbfree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree); 498ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nifree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); 499ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); 500ee3ffd6cSEvgeniy Dushistov } 501ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 502ee3ffd6cSEvgeniy Dushistov } 503ee3ffd6cSEvgeniy Dushistov 504ee3ffd6cSEvgeniy Dushistov /* 5051da177e4SLinus Torvalds * Read on-disk structures associated with cylinder groups 5061da177e4SLinus Torvalds */ 507e295cfcbSEvgeniy Dushistov static int ufs_read_cylinder_structures(struct super_block *sb) 508e295cfcbSEvgeniy Dushistov { 5091da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 510647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 5111da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 5121da177e4SLinus Torvalds unsigned char * base, * space; 5131da177e4SLinus Torvalds unsigned size, blks, i; 514ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 5151da177e4SLinus Torvalds 516abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 5171da177e4SLinus Torvalds 518647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 5191da177e4SLinus Torvalds /* 5201da177e4SLinus Torvalds * Read cs structures from (usually) first data block 5211da177e4SLinus Torvalds * on the device. 5221da177e4SLinus Torvalds */ 5231da177e4SLinus Torvalds size = uspi->s_cssize; 5241da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 5251da177e4SLinus Torvalds base = space = kmalloc(size, GFP_KERNEL); 5261da177e4SLinus Torvalds if (!base) 5271da177e4SLinus Torvalds goto failed; 528e295cfcbSEvgeniy Dushistov sbi->s_csp = (struct ufs_csum *)space; 5291da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 5301da177e4SLinus Torvalds size = uspi->s_bsize; 5311da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 5321da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 5331da177e4SLinus Torvalds 5341da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 5357b4ee73eSEvgeniy 5361da177e4SLinus Torvalds if (!ubh) 5371da177e4SLinus Torvalds goto failed; 5387b4ee73eSEvgeniy 5391da177e4SLinus Torvalds ubh_ubhcpymem (space, ubh, size); 5407b4ee73eSEvgeniy 5411da177e4SLinus Torvalds space += size; 5421da177e4SLinus Torvalds ubh_brelse (ubh); 5431da177e4SLinus Torvalds ubh = NULL; 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds /* 5471da177e4SLinus Torvalds * Read cylinder group (we read only first fragment from block 5481da177e4SLinus Torvalds * at this time) and prepare internal data structures for cg caching. 5491da177e4SLinus Torvalds */ 5501da177e4SLinus Torvalds if (!(sbi->s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) 5511da177e4SLinus Torvalds goto failed; 5521da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 5531da177e4SLinus Torvalds sbi->s_ucg[i] = NULL; 5541da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5551da177e4SLinus Torvalds sbi->s_ucpi[i] = NULL; 5561da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) { 559abf5d15fSEvgeniy Dushistov UFSD("read cg %u\n", i); 5601da177e4SLinus Torvalds if (!(sbi->s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) 5611da177e4SLinus Torvalds goto failed; 5621da177e4SLinus Torvalds if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 5631da177e4SLinus Torvalds goto failed; 564647b7e87SEvgeniy Dushistov 5651da177e4SLinus Torvalds ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 5661da177e4SLinus Torvalds } 5671da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 5681da177e4SLinus Torvalds if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) 5691da177e4SLinus Torvalds goto failed; 5701da177e4SLinus Torvalds sbi->s_cgno[i] = UFS_CGNO_EMPTY; 5711da177e4SLinus Torvalds } 5721da177e4SLinus Torvalds sbi->s_cg_loaded = 0; 573abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 5741da177e4SLinus Torvalds return 1; 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds failed: 577f99d49adSJesper Juhl kfree (base); 5781da177e4SLinus Torvalds if (sbi->s_ucg) { 5791da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 580f99d49adSJesper Juhl if (sbi->s_ucg[i]) 581f99d49adSJesper Juhl brelse (sbi->s_ucg[i]); 5821da177e4SLinus Torvalds kfree (sbi->s_ucg); 5831da177e4SLinus Torvalds for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) 584f99d49adSJesper Juhl kfree (sbi->s_ucpi[i]); 5851da177e4SLinus Torvalds } 586abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 5871da177e4SLinus Torvalds return 0; 5881da177e4SLinus Torvalds } 5891da177e4SLinus Torvalds 5901da177e4SLinus Torvalds /* 591ee3ffd6cSEvgeniy Dushistov * Sync our internal copy of fs_cstotal with disk 5921da177e4SLinus Torvalds */ 593ee3ffd6cSEvgeniy Dushistov static void ufs_put_cstotal(struct super_block *sb) 594ee3ffd6cSEvgeniy Dushistov { 595ee3ffd6cSEvgeniy Dushistov unsigned mtype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 596ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi; 597ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_first *usb1; 598ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_second *usb2; 599ee3ffd6cSEvgeniy Dushistov struct ufs_super_block_third *usb3; 600ee3ffd6cSEvgeniy Dushistov 601ee3ffd6cSEvgeniy Dushistov UFSD("ENTER\n"); 602ee3ffd6cSEvgeniy Dushistov usb1 = ubh_get_usb_first(uspi); 603ee3ffd6cSEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 604ee3ffd6cSEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 605ee3ffd6cSEvgeniy Dushistov 606ee3ffd6cSEvgeniy Dushistov if ((mtype == UFS_MOUNT_UFSTYPE_44BSD && 607ee3ffd6cSEvgeniy Dushistov (usb1->fs_flags & UFS_FLAGS_UPDATED)) || 608ee3ffd6cSEvgeniy Dushistov mtype == UFS_MOUNT_UFSTYPE_UFS2) { 609ee3ffd6cSEvgeniy Dushistov /*we have statistic in different place, then usual*/ 610ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_ndir = 611ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_ndir); 612ee3ffd6cSEvgeniy Dushistov usb2->fs_un.fs_u2.cs_nbfree = 613ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nbfree); 614ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nifree = 615ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nifree); 616ee3ffd6cSEvgeniy Dushistov usb3->fs_un1.fs_u2.cs_nffree = 617ee3ffd6cSEvgeniy Dushistov cpu_to_fs64(sb, uspi->cs_total.cs_nffree); 618ee3ffd6cSEvgeniy Dushistov } else { 619ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_ndir = 620ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_ndir); 621ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nbfree = 622ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nbfree); 623ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nifree = 624ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nifree); 625ee3ffd6cSEvgeniy Dushistov usb1->fs_cstotal.cs_nffree = 626ee3ffd6cSEvgeniy Dushistov cpu_to_fs32(sb, uspi->cs_total.cs_nffree); 627ee3ffd6cSEvgeniy Dushistov } 628ee3ffd6cSEvgeniy Dushistov ubh_mark_buffer_dirty(USPI_UBH(uspi)); 6293313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 630ee3ffd6cSEvgeniy Dushistov UFSD("EXIT\n"); 631ee3ffd6cSEvgeniy Dushistov } 632ee3ffd6cSEvgeniy Dushistov 633ee3ffd6cSEvgeniy Dushistov /** 634ee3ffd6cSEvgeniy Dushistov * ufs_put_super_internal() - put on-disk intrenal structures 635ee3ffd6cSEvgeniy Dushistov * @sb: pointer to super_block structure 636ee3ffd6cSEvgeniy Dushistov * Put on-disk structures associated with cylinder groups 637ee3ffd6cSEvgeniy Dushistov * and write them back to disk, also update cs_total on disk 638ee3ffd6cSEvgeniy Dushistov */ 639ee3ffd6cSEvgeniy Dushistov static void ufs_put_super_internal(struct super_block *sb) 640e295cfcbSEvgeniy Dushistov { 6411da177e4SLinus Torvalds struct ufs_sb_info *sbi = UFS_SB(sb); 642ee3ffd6cSEvgeniy Dushistov struct ufs_sb_private_info *uspi = sbi->s_uspi; 6431da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6441da177e4SLinus Torvalds unsigned char * base, * space; 6451da177e4SLinus Torvalds unsigned blks, size, i; 6461da177e4SLinus Torvalds 647ee3ffd6cSEvgeniy Dushistov 648abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 6496cfd0148SChristoph Hellwig 6506cfd0148SChristoph Hellwig lock_kernel(); 6516cfd0148SChristoph Hellwig 652ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 6531da177e4SLinus Torvalds size = uspi->s_cssize; 6541da177e4SLinus Torvalds blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; 655e295cfcbSEvgeniy Dushistov base = space = (char*) sbi->s_csp; 6561da177e4SLinus Torvalds for (i = 0; i < blks; i += uspi->s_fpb) { 6571da177e4SLinus Torvalds size = uspi->s_bsize; 6581da177e4SLinus Torvalds if (i + uspi->s_fpb > blks) 6591da177e4SLinus Torvalds size = (blks - i) * uspi->s_fsize; 6603313e292SEvgeniy Dushistov 6611da177e4SLinus Torvalds ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 6623313e292SEvgeniy Dushistov 6631da177e4SLinus Torvalds ubh_memcpyubh (ubh, space, size); 6641da177e4SLinus Torvalds space += size; 6651da177e4SLinus Torvalds ubh_mark_buffer_uptodate (ubh, 1); 6661da177e4SLinus Torvalds ubh_mark_buffer_dirty (ubh); 6671da177e4SLinus Torvalds ubh_brelse (ubh); 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds for (i = 0; i < sbi->s_cg_loaded; i++) { 6701da177e4SLinus Torvalds ufs_put_cylinder (sb, i); 6711da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6721da177e4SLinus Torvalds } 6731da177e4SLinus Torvalds for (; i < UFS_MAX_GROUP_LOADED; i++) 6741da177e4SLinus Torvalds kfree (sbi->s_ucpi[i]); 6751da177e4SLinus Torvalds for (i = 0; i < uspi->s_ncg; i++) 6761da177e4SLinus Torvalds brelse (sbi->s_ucg[i]); 6771da177e4SLinus Torvalds kfree (sbi->s_ucg); 6781da177e4SLinus Torvalds kfree (base); 6796cfd0148SChristoph Hellwig 6806cfd0148SChristoph Hellwig unlock_kernel(); 6816cfd0148SChristoph Hellwig 682abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds 6851da177e4SLinus Torvalds static int ufs_fill_super(struct super_block *sb, void *data, int silent) 6861da177e4SLinus Torvalds { 6871da177e4SLinus Torvalds struct ufs_sb_info * sbi; 6881da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 6891da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 6901da177e4SLinus Torvalds struct ufs_super_block_second * usb2; 6911da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 6921da177e4SLinus Torvalds struct ufs_buffer_head * ubh; 6931da177e4SLinus Torvalds struct inode *inode; 6941da177e4SLinus Torvalds unsigned block_size, super_block_size; 6951da177e4SLinus Torvalds unsigned flags; 6967b4ee73eSEvgeniy unsigned super_block_offset; 6979e6766ccSDuane Griffin unsigned maxsymlen; 698b55c460dSDavid Howells int ret = -EINVAL; 6991da177e4SLinus Torvalds 7001da177e4SLinus Torvalds uspi = NULL; 7011da177e4SLinus Torvalds ubh = NULL; 7021da177e4SLinus Torvalds flags = 0; 7031da177e4SLinus Torvalds 704abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 7051da177e4SLinus Torvalds 706f8314dc6SPanagiotis Issaris sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); 7071da177e4SLinus Torvalds if (!sbi) 7081da177e4SLinus Torvalds goto failed_nomem; 7091da177e4SLinus Torvalds sb->s_fs_info = sbi; 7101da177e4SLinus Torvalds 711abf5d15fSEvgeniy Dushistov UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 7141da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 7151da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 7161da177e4SLinus Torvalds "can't be mounted as read-write\n"); 7171da177e4SLinus Torvalds goto failed; 7181da177e4SLinus Torvalds } 7191da177e4SLinus Torvalds #endif 7201da177e4SLinus Torvalds /* 7211da177e4SLinus Torvalds * Set default mount options 7221da177e4SLinus Torvalds * Parse mount options 7231da177e4SLinus Torvalds */ 7241da177e4SLinus Torvalds sbi->s_mount_opt = 0; 7251da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK); 7261da177e4SLinus Torvalds if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) { 7271da177e4SLinus Torvalds printk("wrong mount options\n"); 7281da177e4SLinus Torvalds goto failed; 7291da177e4SLinus Torvalds } 7301da177e4SLinus Torvalds if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) { 7311da177e4SLinus Torvalds if (!silent) 7321da177e4SLinus Torvalds printk("You didn't specify the type of your ufs filesystem\n\n" 7331da177e4SLinus Torvalds "mount -t ufs -o ufstype=" 734c690a722SMichael Owen "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n" 7351da177e4SLinus Torvalds ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " 7361da177e4SLinus Torvalds "default is ufstype=old\n"); 7371da177e4SLinus Torvalds ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD); 7381da177e4SLinus Torvalds } 7391da177e4SLinus Torvalds 740252e211eSMark Fortescue uspi = kzalloc(sizeof(struct ufs_sb_private_info), GFP_KERNEL); 741252e211eSMark Fortescue sbi->s_uspi = uspi; 7421da177e4SLinus Torvalds if (!uspi) 7431da177e4SLinus Torvalds goto failed; 744f336953bSEvgeniy Dushistov uspi->s_dirblksize = UFS_SECTOR_SIZE; 7457b4ee73eSEvgeniy super_block_offset=UFS_SBLOCK; 7467b4ee73eSEvgeniy 7471da177e4SLinus Torvalds /* Keep 2Gig file limit. Some UFS variants need to override 7481da177e4SLinus Torvalds this but as I don't know which I'll let those in the know loosen 7491da177e4SLinus Torvalds the rules */ 7501da177e4SLinus Torvalds switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) { 7511da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_44BSD: 752abf5d15fSEvgeniy Dushistov UFSD("ufstype=44bsd\n"); 7531da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7541da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7551da177e4SLinus Torvalds uspi->s_fshift = 9; 7561da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7571da177e4SLinus Torvalds uspi->s_sbbase = 0; 7581da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7591da177e4SLinus Torvalds break; 7601da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_UFS2: 761abf5d15fSEvgeniy Dushistov UFSD("ufstype=ufs2\n"); 7627b4ee73eSEvgeniy super_block_offset=SBLOCK_UFS2; 7631da177e4SLinus Torvalds uspi->s_fsize = block_size = 512; 7641da177e4SLinus Torvalds uspi->s_fmask = ~(512 - 1); 7651da177e4SLinus Torvalds uspi->s_fshift = 9; 7661da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 1536; 7671da177e4SLinus Torvalds uspi->s_sbbase = 0; 7681da177e4SLinus Torvalds flags |= UFS_TYPE_UFS2 | UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 7691da177e4SLinus Torvalds break; 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUN: 772abf5d15fSEvgeniy Dushistov UFSD("ufstype=sun\n"); 7731da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7741da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7751da177e4SLinus Torvalds uspi->s_fshift = 10; 7761da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 7771da177e4SLinus Torvalds uspi->s_sbbase = 0; 778252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 7791da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; 7801da177e4SLinus Torvalds break; 7811da177e4SLinus Torvalds 782252e211eSMark Fortescue case UFS_MOUNT_UFSTYPE_SUNOS: 783252e211eSMark Fortescue UFSD(("ufstype=sunos\n")) 784252e211eSMark Fortescue uspi->s_fsize = block_size = 1024; 785252e211eSMark Fortescue uspi->s_fmask = ~(1024 - 1); 786252e211eSMark Fortescue uspi->s_fshift = 10; 787252e211eSMark Fortescue uspi->s_sbsize = 2048; 788252e211eSMark Fortescue super_block_size = 2048; 789252e211eSMark Fortescue uspi->s_sbbase = 0; 790252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 791252e211eSMark Fortescue flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_SUNOS | UFS_CG_SUN; 792252e211eSMark Fortescue break; 793252e211eSMark Fortescue 7941da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_SUNx86: 795abf5d15fSEvgeniy Dushistov UFSD("ufstype=sunx86\n"); 7961da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 7971da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 7981da177e4SLinus Torvalds uspi->s_fshift = 10; 7991da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8001da177e4SLinus Torvalds uspi->s_sbbase = 0; 801252e211eSMark Fortescue uspi->s_maxsymlinklen = 0; /* Not supported on disk */ 8021da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; 8031da177e4SLinus Torvalds break; 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OLD: 806abf5d15fSEvgeniy Dushistov UFSD("ufstype=old\n"); 8071da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8081da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8091da177e4SLinus Torvalds uspi->s_fshift = 10; 8101da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8111da177e4SLinus Torvalds uspi->s_sbbase = 0; 8121da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8131da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8141da177e4SLinus Torvalds if (!silent) 8151da177e4SLinus Torvalds printk(KERN_INFO "ufstype=old is supported read-only\n"); 8161da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8171da177e4SLinus Torvalds } 8181da177e4SLinus Torvalds break; 8191da177e4SLinus Torvalds 8201da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP: 821abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep\n"); 8221da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8231da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8241da177e4SLinus Torvalds uspi->s_fshift = 10; 8251da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8261da177e4SLinus Torvalds uspi->s_sbbase = 0; 8270c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 8281da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8291da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8301da177e4SLinus Torvalds if (!silent) 8311da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); 8321da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8331da177e4SLinus Torvalds } 8341da177e4SLinus Torvalds break; 8351da177e4SLinus Torvalds 8361da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: 837abf5d15fSEvgeniy Dushistov UFSD("ufstype=nextstep-cd\n"); 8381da177e4SLinus Torvalds uspi->s_fsize = block_size = 2048; 8391da177e4SLinus Torvalds uspi->s_fmask = ~(2048 - 1); 8401da177e4SLinus Torvalds uspi->s_fshift = 11; 8411da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8421da177e4SLinus Torvalds uspi->s_sbbase = 0; 8430c664f97SEvgeniy Dushistov uspi->s_dirblksize = 1024; 8441da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8451da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8461da177e4SLinus Torvalds if (!silent) 8471da177e4SLinus Torvalds printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); 8481da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds break; 8511da177e4SLinus Torvalds 8521da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_OPENSTEP: 853abf5d15fSEvgeniy Dushistov UFSD("ufstype=openstep\n"); 8541da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8551da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8561da177e4SLinus Torvalds uspi->s_fshift = 10; 8571da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8581da177e4SLinus Torvalds uspi->s_sbbase = 0; 859f336953bSEvgeniy Dushistov uspi->s_dirblksize = 1024; 8601da177e4SLinus Torvalds flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; 8611da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8621da177e4SLinus Torvalds if (!silent) 8631da177e4SLinus Torvalds printk(KERN_INFO "ufstype=openstep is supported read-only\n"); 8641da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8651da177e4SLinus Torvalds } 8661da177e4SLinus Torvalds break; 8671da177e4SLinus Torvalds 8681da177e4SLinus Torvalds case UFS_MOUNT_UFSTYPE_HP: 869abf5d15fSEvgeniy Dushistov UFSD("ufstype=hp\n"); 8701da177e4SLinus Torvalds uspi->s_fsize = block_size = 1024; 8711da177e4SLinus Torvalds uspi->s_fmask = ~(1024 - 1); 8721da177e4SLinus Torvalds uspi->s_fshift = 10; 8731da177e4SLinus Torvalds uspi->s_sbsize = super_block_size = 2048; 8741da177e4SLinus Torvalds uspi->s_sbbase = 0; 8751da177e4SLinus Torvalds flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; 8761da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) { 8771da177e4SLinus Torvalds if (!silent) 8781da177e4SLinus Torvalds printk(KERN_INFO "ufstype=hp is supported read-only\n"); 8791da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 8801da177e4SLinus Torvalds } 8811da177e4SLinus Torvalds break; 8821da177e4SLinus Torvalds default: 8831da177e4SLinus Torvalds if (!silent) 8841da177e4SLinus Torvalds printk("unknown ufstype\n"); 8851da177e4SLinus Torvalds goto failed; 8861da177e4SLinus Torvalds } 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds again: 8891da177e4SLinus Torvalds if (!sb_set_blocksize(sb, block_size)) { 8901da177e4SLinus Torvalds printk(KERN_ERR "UFS: failed to set blocksize\n"); 8911da177e4SLinus Torvalds goto failed; 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds 8941da177e4SLinus Torvalds /* 8951da177e4SLinus Torvalds * read ufs super block from device 8961da177e4SLinus Torvalds */ 8977b4ee73eSEvgeniy 8987b4ee73eSEvgeniy ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size); 8997b4ee73eSEvgeniy 9001da177e4SLinus Torvalds if (!ubh) 9011da177e4SLinus Torvalds goto failed; 9021da177e4SLinus Torvalds 9037b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 9047b4ee73eSEvgeniy usb2 = ubh_get_usb_second(uspi); 9057b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 9061da177e4SLinus Torvalds 907252e211eSMark Fortescue /* Sort out mod used on SunOS 4.1.3 for fs_state */ 908252e211eSMark Fortescue uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 909252e211eSMark Fortescue if (((flags & UFS_ST_MASK) == UFS_ST_SUNOS) && 910252e211eSMark Fortescue (uspi->s_postblformat != UFS_42POSTBLFMT)) { 911252e211eSMark Fortescue flags &= ~UFS_ST_MASK; 912252e211eSMark Fortescue flags |= UFS_ST_SUN; 913252e211eSMark Fortescue } 914252e211eSMark Fortescue 9151da177e4SLinus Torvalds /* 9161da177e4SLinus Torvalds * Check ufs magic number 9171da177e4SLinus Torvalds */ 9181da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_LE; 9191da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 9201da177e4SLinus Torvalds case UFS_MAGIC: 9211da177e4SLinus Torvalds case UFS2_MAGIC: 9221da177e4SLinus Torvalds case UFS_MAGIC_LFN: 9231da177e4SLinus Torvalds case UFS_MAGIC_FEA: 9241da177e4SLinus Torvalds case UFS_MAGIC_4GB: 9251da177e4SLinus Torvalds goto magic_found; 9261da177e4SLinus Torvalds } 9271da177e4SLinus Torvalds sbi->s_bytesex = BYTESEX_BE; 9281da177e4SLinus Torvalds switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) { 9291da177e4SLinus Torvalds case UFS_MAGIC: 9301da177e4SLinus Torvalds case UFS2_MAGIC: 9311da177e4SLinus Torvalds case UFS_MAGIC_LFN: 9321da177e4SLinus Torvalds case UFS_MAGIC_FEA: 9331da177e4SLinus Torvalds case UFS_MAGIC_4GB: 9341da177e4SLinus Torvalds goto magic_found; 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds if ((((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 9381da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 9391da177e4SLinus Torvalds || ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 9401da177e4SLinus Torvalds && uspi->s_sbbase < 256) { 9411da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 9421da177e4SLinus Torvalds ubh = NULL; 9431da177e4SLinus Torvalds uspi->s_sbbase += 8; 9441da177e4SLinus Torvalds goto again; 9451da177e4SLinus Torvalds } 9461da177e4SLinus Torvalds if (!silent) 9471da177e4SLinus Torvalds printk("ufs_read_super: bad magic number\n"); 9481da177e4SLinus Torvalds goto failed; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds magic_found: 9511da177e4SLinus Torvalds /* 9521da177e4SLinus Torvalds * Check block and fragment sizes 9531da177e4SLinus Torvalds */ 9541da177e4SLinus Torvalds uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); 9551da177e4SLinus Torvalds uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); 9561da177e4SLinus Torvalds uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); 9571da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 9581da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 9591da177e4SLinus Torvalds 9609e8c4273Svignesh babu if (!is_power_of_2(uspi->s_fsize)) { 9611da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n", 9621da177e4SLinus Torvalds uspi->s_fsize); 9631da177e4SLinus Torvalds goto failed; 9641da177e4SLinus Torvalds } 9651da177e4SLinus Torvalds if (uspi->s_fsize < 512) { 9661da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n", 9671da177e4SLinus Torvalds uspi->s_fsize); 9681da177e4SLinus Torvalds goto failed; 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds if (uspi->s_fsize > 4096) { 9711da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n", 9721da177e4SLinus Torvalds uspi->s_fsize); 9731da177e4SLinus Torvalds goto failed; 9741da177e4SLinus Torvalds } 9759e8c4273Svignesh babu if (!is_power_of_2(uspi->s_bsize)) { 9761da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n", 9771da177e4SLinus Torvalds uspi->s_bsize); 9781da177e4SLinus Torvalds goto failed; 9791da177e4SLinus Torvalds } 9801da177e4SLinus Torvalds if (uspi->s_bsize < 4096) { 9811da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: block size %u is too small\n", 9821da177e4SLinus Torvalds uspi->s_bsize); 9831da177e4SLinus Torvalds goto failed; 9841da177e4SLinus Torvalds } 9851da177e4SLinus Torvalds if (uspi->s_bsize / uspi->s_fsize > 8) { 9861da177e4SLinus Torvalds printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n", 9871da177e4SLinus Torvalds uspi->s_bsize / uspi->s_fsize); 9881da177e4SLinus Torvalds goto failed; 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { 9911da177e4SLinus Torvalds ubh_brelse_uspi(uspi); 9921da177e4SLinus Torvalds ubh = NULL; 9931da177e4SLinus Torvalds block_size = uspi->s_fsize; 9941da177e4SLinus Torvalds super_block_size = uspi->s_sbsize; 995abf5d15fSEvgeniy Dushistov UFSD("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size); 9961da177e4SLinus Torvalds goto again; 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999f664f1f9SAndrew Morton sbi->s_flags = flags;/*after that line some functions use s_flags*/ 10003313e292SEvgeniy Dushistov ufs_print_super_stuff(sb, usb1, usb2, usb3); 10011da177e4SLinus Torvalds 10021da177e4SLinus Torvalds /* 10031da177e4SLinus Torvalds * Check, if file system was correctly unmounted. 10041da177e4SLinus Torvalds * If not, make it read only. 10051da177e4SLinus Torvalds */ 1006f664f1f9SAndrew Morton if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || 10071da177e4SLinus Torvalds ((flags & UFS_ST_MASK) == UFS_ST_OLD) || 1008f664f1f9SAndrew Morton (((flags & UFS_ST_MASK) == UFS_ST_SUN || 1009f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 1010f664f1f9SAndrew Morton (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 1011f664f1f9SAndrew Morton (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { 10121da177e4SLinus Torvalds switch(usb1->fs_clean) { 10131da177e4SLinus Torvalds case UFS_FSCLEAN: 1014abf5d15fSEvgeniy Dushistov UFSD("fs is clean\n"); 10151da177e4SLinus Torvalds break; 10161da177e4SLinus Torvalds case UFS_FSSTABLE: 1017abf5d15fSEvgeniy Dushistov UFSD("fs is stable\n"); 10181da177e4SLinus Torvalds break; 1019b3a0fd4dSAlex Viskovatoff case UFS_FSLOG: 1020b3a0fd4dSAlex Viskovatoff UFSD("fs is logging fs\n"); 1021b3a0fd4dSAlex Viskovatoff break; 10221da177e4SLinus Torvalds case UFS_FSOSF1: 1023abf5d15fSEvgeniy Dushistov UFSD("fs is DEC OSF/1\n"); 10241da177e4SLinus Torvalds break; 10251da177e4SLinus Torvalds case UFS_FSACTIVE: 10261da177e4SLinus Torvalds printk("ufs_read_super: fs is active\n"); 10271da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10281da177e4SLinus Torvalds break; 10291da177e4SLinus Torvalds case UFS_FSBAD: 10301da177e4SLinus Torvalds printk("ufs_read_super: fs is bad\n"); 10311da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10321da177e4SLinus Torvalds break; 10331da177e4SLinus Torvalds default: 10341da177e4SLinus Torvalds printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); 10351da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10361da177e4SLinus Torvalds break; 10371da177e4SLinus Torvalds } 1038ee3ffd6cSEvgeniy Dushistov } else { 10391da177e4SLinus Torvalds printk("ufs_read_super: fs needs fsck\n"); 10401da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 10411da177e4SLinus Torvalds } 10421da177e4SLinus Torvalds 10431da177e4SLinus Torvalds /* 10441da177e4SLinus Torvalds * Read ufs_super_block into internal data structures 10451da177e4SLinus Torvalds */ 10461da177e4SLinus Torvalds sb->s_op = &ufs_super_ops; 1047f3e2a520SAlexey Dobriyan sb->s_export_op = &ufs_export_ops; 1048123e9cafSChristoph Hellwig #ifdef CONFIG_QUOTA 1049123e9cafSChristoph Hellwig sb->s_qcop = &vfs_quotactl_ops; 1050123e9cafSChristoph Hellwig sb->dq_op = NULL; /* &dquot_operations */ 1051123e9cafSChristoph Hellwig #endif 1052123e9cafSChristoph Hellwig 10531da177e4SLinus Torvalds sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); 10541da177e4SLinus Torvalds 10551da177e4SLinus Torvalds uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); 10561da177e4SLinus Torvalds uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); 10571da177e4SLinus Torvalds uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); 10581da177e4SLinus Torvalds uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); 10591da177e4SLinus Torvalds uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); 10601da177e4SLinus Torvalds uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1063647b7e87SEvgeniy Dushistov uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size); 1064647b7e87SEvgeniy Dushistov uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1065647b7e87SEvgeniy Dushistov } else { 10661da177e4SLinus Torvalds uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 10671da177e4SLinus Torvalds uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 10681da177e4SLinus Torvalds } 10691da177e4SLinus Torvalds 10701da177e4SLinus Torvalds uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); 10711da177e4SLinus Torvalds /* s_bsize already set */ 10721da177e4SLinus Torvalds /* s_fsize already set */ 10731da177e4SLinus Torvalds uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); 10741da177e4SLinus Torvalds uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); 10751da177e4SLinus Torvalds uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); 10761da177e4SLinus Torvalds uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); 10771da177e4SLinus Torvalds uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); 10781da177e4SLinus Torvalds uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); 1079abf5d15fSEvgeniy Dushistov UFSD("uspi->s_bshift = %d,uspi->s_fshift = %d", uspi->s_bshift, 1080abf5d15fSEvgeniy Dushistov uspi->s_fshift); 10811da177e4SLinus Torvalds uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); 10821da177e4SLinus Torvalds uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); 10831da177e4SLinus Torvalds /* s_sbsize already set */ 10841da177e4SLinus Torvalds uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); 10851da177e4SLinus Torvalds uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); 10861da177e4SLinus Torvalds uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); 10871da177e4SLinus Torvalds uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); 10881da177e4SLinus Torvalds uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); 10891da177e4SLinus Torvalds uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); 10901da177e4SLinus Torvalds uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); 10911da177e4SLinus Torvalds uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); 10923313e292SEvgeniy Dushistov 10933313e292SEvgeniy Dushistov if (uspi->fs_magic == UFS2_MAGIC) 10943313e292SEvgeniy Dushistov uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr); 10953313e292SEvgeniy Dushistov else 10961da177e4SLinus Torvalds uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); 10973313e292SEvgeniy Dushistov 10981da177e4SLinus Torvalds uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); 10991da177e4SLinus Torvalds uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); 11001da177e4SLinus Torvalds uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); 11011da177e4SLinus Torvalds uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); 11021da177e4SLinus Torvalds uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 11031da177e4SLinus Torvalds uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 11041da177e4SLinus Torvalds uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 1105647b7e87SEvgeniy Dushistov uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc); 1106647b7e87SEvgeniy Dushistov uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize); 11071da177e4SLinus Torvalds uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 11081da177e4SLinus Torvalds uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 11091da177e4SLinus Torvalds uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); 11101da177e4SLinus Torvalds uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); 11111da177e4SLinus Torvalds uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); 11121da177e4SLinus Torvalds 11131da177e4SLinus Torvalds /* 11141da177e4SLinus Torvalds * Compute another frequently used values 11151da177e4SLinus Torvalds */ 11161da177e4SLinus Torvalds uspi->s_fpbmask = uspi->s_fpb - 1; 1117abf5d15fSEvgeniy Dushistov if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 11181da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 3; 1119abf5d15fSEvgeniy Dushistov else 11201da177e4SLinus Torvalds uspi->s_apbshift = uspi->s_bshift - 2; 1121abf5d15fSEvgeniy Dushistov 11221da177e4SLinus Torvalds uspi->s_2apbshift = uspi->s_apbshift * 2; 11231da177e4SLinus Torvalds uspi->s_3apbshift = uspi->s_apbshift * 3; 11241da177e4SLinus Torvalds uspi->s_apb = 1 << uspi->s_apbshift; 11251da177e4SLinus Torvalds uspi->s_2apb = 1 << uspi->s_2apbshift; 11261da177e4SLinus Torvalds uspi->s_3apb = 1 << uspi->s_3apbshift; 11271da177e4SLinus Torvalds uspi->s_apbmask = uspi->s_apb - 1; 11281da177e4SLinus Torvalds uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; 11291da177e4SLinus Torvalds uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; 11301da177e4SLinus Torvalds uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; 11311da177e4SLinus Torvalds uspi->s_bpf = uspi->s_fsize << 3; 11321da177e4SLinus Torvalds uspi->s_bpfshift = uspi->s_fshift + 3; 11331da177e4SLinus Torvalds uspi->s_bpfmask = uspi->s_bpf - 1; 113490b315afSEvgeniy Dushistov if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_44BSD || 113590b315afSEvgeniy Dushistov (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_UFS2) 11361da177e4SLinus Torvalds uspi->s_maxsymlinklen = 1137647b7e87SEvgeniy Dushistov fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen); 11381da177e4SLinus Torvalds 11399e6766ccSDuane Griffin if (uspi->fs_magic == UFS2_MAGIC) 11409e6766ccSDuane Griffin maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR); 11419e6766ccSDuane Griffin else 11429e6766ccSDuane Griffin maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR); 11439e6766ccSDuane Griffin if (uspi->s_maxsymlinklen > maxsymlen) { 11449e6766ccSDuane Griffin ufs_warning(sb, __func__, "ufs_read_super: excessive maximum " 11459e6766ccSDuane Griffin "fast symlink size (%u)\n", uspi->s_maxsymlinklen); 11469e6766ccSDuane Griffin uspi->s_maxsymlinklen = maxsymlen; 11479e6766ccSDuane Griffin } 11489e6766ccSDuane Griffin 1149b55c460dSDavid Howells inode = ufs_iget(sb, UFS_ROOTINO); 1150b55c460dSDavid Howells if (IS_ERR(inode)) { 1151b55c460dSDavid Howells ret = PTR_ERR(inode); 11521da177e4SLinus Torvalds goto failed; 1153b55c460dSDavid Howells } 11541da177e4SLinus Torvalds sb->s_root = d_alloc_root(inode); 1155b55c460dSDavid Howells if (!sb->s_root) { 1156b55c460dSDavid Howells ret = -ENOMEM; 11571da177e4SLinus Torvalds goto dalloc_failed; 1158b55c460dSDavid Howells } 11591da177e4SLinus Torvalds 1160ee3ffd6cSEvgeniy Dushistov ufs_setup_cstotal(sb); 11611da177e4SLinus Torvalds /* 11621da177e4SLinus Torvalds * Read cylinder group structures 11631da177e4SLinus Torvalds */ 11641da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 11651da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) 11661da177e4SLinus Torvalds goto failed; 11671da177e4SLinus Torvalds 1168abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 11691da177e4SLinus Torvalds return 0; 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds dalloc_failed: 11721da177e4SLinus Torvalds iput(inode); 11731da177e4SLinus Torvalds failed: 1174f99d49adSJesper Juhl if (ubh) 1175f99d49adSJesper Juhl ubh_brelse_uspi (uspi); 1176f99d49adSJesper Juhl kfree (uspi); 1177f99d49adSJesper Juhl kfree(sbi); 11781da177e4SLinus Torvalds sb->s_fs_info = NULL; 1179abf5d15fSEvgeniy Dushistov UFSD("EXIT (FAILED)\n"); 1180b55c460dSDavid Howells return ret; 11811da177e4SLinus Torvalds 11821da177e4SLinus Torvalds failed_nomem: 1183abf5d15fSEvgeniy Dushistov UFSD("EXIT (NOMEM)\n"); 11841da177e4SLinus Torvalds return -ENOMEM; 11851da177e4SLinus Torvalds } 11861da177e4SLinus Torvalds 11878c800656SChristoph Hellwig static int ufs_sync_fs(struct super_block *sb, int wait) 1188647b7e87SEvgeniy Dushistov { 11891da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 11901da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 11911da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 11921da177e4SLinus Torvalds unsigned flags; 11931da177e4SLinus Torvalds 1194ebc1ac16SChristoph Hellwig lock_super(sb); 11951da177e4SLinus Torvalds lock_kernel(); 11968c800656SChristoph Hellwig 1197abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 11988c800656SChristoph Hellwig 11991da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12001da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12017b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12027b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12031da177e4SLinus Torvalds 12041da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 12058c800656SChristoph Hellwig if ((flags & UFS_ST_MASK) == UFS_ST_SUN || 12068c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNOS || 12078c800656SChristoph Hellwig (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 12081da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 12091da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 1210ee3ffd6cSEvgeniy Dushistov ufs_put_cstotal(sb); 12111da177e4SLinus Torvalds sb->s_dirt = 0; 12128c800656SChristoph Hellwig 1213abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12141da177e4SLinus Torvalds unlock_kernel(); 1215ebc1ac16SChristoph Hellwig unlock_super(sb); 12168c800656SChristoph Hellwig 12178c800656SChristoph Hellwig return 0; 12188c800656SChristoph Hellwig } 12198c800656SChristoph Hellwig 12208c800656SChristoph Hellwig static void ufs_write_super(struct super_block *sb) 12218c800656SChristoph Hellwig { 12228c800656SChristoph Hellwig if (!(sb->s_flags & MS_RDONLY)) 12238c800656SChristoph Hellwig ufs_sync_fs(sb, 1); 12248c800656SChristoph Hellwig else 12258c800656SChristoph Hellwig sb->s_dirt = 0; 12261da177e4SLinus Torvalds } 12271da177e4SLinus Torvalds 12281da177e4SLinus Torvalds static void ufs_put_super(struct super_block *sb) 12291da177e4SLinus Torvalds { 12301da177e4SLinus Torvalds struct ufs_sb_info * sbi = UFS_SB(sb); 12311da177e4SLinus Torvalds 1232abf5d15fSEvgeniy Dushistov UFSD("ENTER\n"); 12331da177e4SLinus Torvalds 1234e0ccfd95SChristoph Hellwig dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED); 1235e0ccfd95SChristoph Hellwig 12368c85e125SChristoph Hellwig if (sb->s_dirt) 12378c85e125SChristoph Hellwig ufs_write_super(sb); 12388c85e125SChristoph Hellwig 12391da177e4SLinus Torvalds if (!(sb->s_flags & MS_RDONLY)) 1240ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 12411da177e4SLinus Torvalds 12421da177e4SLinus Torvalds ubh_brelse_uspi (sbi->s_uspi); 12431da177e4SLinus Torvalds kfree (sbi->s_uspi); 12441da177e4SLinus Torvalds kfree (sbi); 12451da177e4SLinus Torvalds sb->s_fs_info = NULL; 1246abf5d15fSEvgeniy Dushistov UFSD("EXIT\n"); 12471da177e4SLinus Torvalds return; 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds 12501da177e4SLinus Torvalds 12511da177e4SLinus Torvalds static int ufs_remount (struct super_block *sb, int *mount_flags, char *data) 12521da177e4SLinus Torvalds { 12531da177e4SLinus Torvalds struct ufs_sb_private_info * uspi; 12541da177e4SLinus Torvalds struct ufs_super_block_first * usb1; 12551da177e4SLinus Torvalds struct ufs_super_block_third * usb3; 12561da177e4SLinus Torvalds unsigned new_mount_opt, ufstype; 1257c79d967dSChristoph Hellwig int enable_quota = 0; 12581da177e4SLinus Torvalds unsigned flags; 1259c79d967dSChristoph Hellwig int err; 12601da177e4SLinus Torvalds 1261337eb00aSAlessio Igor Bogani lock_kernel(); 1262bbd6851aSAl Viro lock_super(sb); 12631da177e4SLinus Torvalds uspi = UFS_SB(sb)->s_uspi; 12641da177e4SLinus Torvalds flags = UFS_SB(sb)->s_flags; 12657b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 12667b4ee73eSEvgeniy usb3 = ubh_get_usb_third(uspi); 12671da177e4SLinus Torvalds 12681da177e4SLinus Torvalds /* 12691da177e4SLinus Torvalds * Allow the "check" option to be passed as a remount option. 12701da177e4SLinus Torvalds * It is not possible to change ufstype option during remount 12711da177e4SLinus Torvalds */ 12721da177e4SLinus Torvalds ufstype = UFS_SB(sb)->s_mount_opt & UFS_MOUNT_UFSTYPE; 12731da177e4SLinus Torvalds new_mount_opt = 0; 12741da177e4SLinus Torvalds ufs_set_opt (new_mount_opt, ONERROR_LOCK); 1275bbd6851aSAl Viro if (!ufs_parse_options (data, &new_mount_opt)) { 1276bbd6851aSAl Viro unlock_super(sb); 1277337eb00aSAlessio Igor Bogani unlock_kernel(); 12781da177e4SLinus Torvalds return -EINVAL; 1279bbd6851aSAl Viro } 12801da177e4SLinus Torvalds if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { 12811da177e4SLinus Torvalds new_mount_opt |= ufstype; 1282ee3ffd6cSEvgeniy Dushistov } else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { 12831da177e4SLinus Torvalds printk("ufstype can't be changed during remount\n"); 1284bbd6851aSAl Viro unlock_super(sb); 1285337eb00aSAlessio Igor Bogani unlock_kernel(); 12861da177e4SLinus Torvalds return -EINVAL; 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds 12891da177e4SLinus Torvalds if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { 12901da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1291bbd6851aSAl Viro unlock_super(sb); 1292337eb00aSAlessio Igor Bogani unlock_kernel(); 12931da177e4SLinus Torvalds return 0; 12941da177e4SLinus Torvalds } 12951da177e4SLinus Torvalds 12961da177e4SLinus Torvalds /* 12971da177e4SLinus Torvalds * fs was mouted as rw, remounting ro 12981da177e4SLinus Torvalds */ 12991da177e4SLinus Torvalds if (*mount_flags & MS_RDONLY) { 13000f0dd62fSChristoph Hellwig err = dquot_suspend(sb, -1); 13010f0dd62fSChristoph Hellwig if (err < 0) { 1302c79d967dSChristoph Hellwig unlock_super(sb); 1303c79d967dSChristoph Hellwig unlock_kernel(); 13040f0dd62fSChristoph Hellwig return err; 1305c79d967dSChristoph Hellwig } 1306c79d967dSChristoph Hellwig 1307ee3ffd6cSEvgeniy Dushistov ufs_put_super_internal(sb); 13081da177e4SLinus Torvalds usb1->fs_time = cpu_to_fs32(sb, get_seconds()); 13091da177e4SLinus Torvalds if ((flags & UFS_ST_MASK) == UFS_ST_SUN 1310252e211eSMark Fortescue || (flags & UFS_ST_MASK) == UFS_ST_SUNOS 13111da177e4SLinus Torvalds || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 13121da177e4SLinus Torvalds ufs_set_fs_state(sb, usb1, usb3, 13131da177e4SLinus Torvalds UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); 13149695ef16SEvgeniy Dushistov ubh_mark_buffer_dirty (USPI_UBH(uspi)); 13151da177e4SLinus Torvalds sb->s_dirt = 0; 13161da177e4SLinus Torvalds sb->s_flags |= MS_RDONLY; 1317ee3ffd6cSEvgeniy Dushistov } else { 13181da177e4SLinus Torvalds /* 13191da177e4SLinus Torvalds * fs was mounted as ro, remounting rw 13201da177e4SLinus Torvalds */ 13211da177e4SLinus Torvalds #ifndef CONFIG_UFS_FS_WRITE 13221da177e4SLinus Torvalds printk("ufs was compiled with read-only support, " 13231da177e4SLinus Torvalds "can't be mounted as read-write\n"); 1324bbd6851aSAl Viro unlock_super(sb); 1325337eb00aSAlessio Igor Bogani unlock_kernel(); 13261da177e4SLinus Torvalds return -EINVAL; 13271da177e4SLinus Torvalds #else 13281da177e4SLinus Torvalds if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 1329252e211eSMark Fortescue ufstype != UFS_MOUNT_UFSTYPE_SUNOS && 13301da177e4SLinus Torvalds ufstype != UFS_MOUNT_UFSTYPE_44BSD && 1331cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_SUNx86 && 1332cbcae39fSEvgeniy Dushistov ufstype != UFS_MOUNT_UFSTYPE_UFS2) { 13331da177e4SLinus Torvalds printk("this ufstype is read-only supported\n"); 1334bbd6851aSAl Viro unlock_super(sb); 1335337eb00aSAlessio Igor Bogani unlock_kernel(); 13361da177e4SLinus Torvalds return -EINVAL; 13371da177e4SLinus Torvalds } 13381da177e4SLinus Torvalds if (!ufs_read_cylinder_structures(sb)) { 13391da177e4SLinus Torvalds printk("failed during remounting\n"); 1340bbd6851aSAl Viro unlock_super(sb); 1341337eb00aSAlessio Igor Bogani unlock_kernel(); 13421da177e4SLinus Torvalds return -EPERM; 13431da177e4SLinus Torvalds } 13441da177e4SLinus Torvalds sb->s_flags &= ~MS_RDONLY; 1345c79d967dSChristoph Hellwig enable_quota = 1; 13461da177e4SLinus Torvalds #endif 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds UFS_SB(sb)->s_mount_opt = new_mount_opt; 1349bbd6851aSAl Viro unlock_super(sb); 1350337eb00aSAlessio Igor Bogani unlock_kernel(); 1351c79d967dSChristoph Hellwig if (enable_quota) 13520f0dd62fSChristoph Hellwig dquot_resume(sb, -1); 13531da177e4SLinus Torvalds return 0; 13541da177e4SLinus Torvalds } 13551da177e4SLinus Torvalds 13562a9807c0SEvgeniy Dushistov static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs) 13572a9807c0SEvgeniy Dushistov { 13582a9807c0SEvgeniy Dushistov struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb); 13592a9807c0SEvgeniy Dushistov unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE; 1360a447c093SSteven Whitehouse const struct match_token *tp = tokens; 13612a9807c0SEvgeniy Dushistov 13622a9807c0SEvgeniy Dushistov while (tp->token != Opt_onerror_panic && tp->token != mval) 13632a9807c0SEvgeniy Dushistov ++tp; 13642a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_onerror_panic); 13652a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13662a9807c0SEvgeniy Dushistov 13672a9807c0SEvgeniy Dushistov mval = sbi->s_mount_opt & UFS_MOUNT_ONERROR; 13682a9807c0SEvgeniy Dushistov while (tp->token != Opt_err && tp->token != mval) 13692a9807c0SEvgeniy Dushistov ++tp; 13702a9807c0SEvgeniy Dushistov BUG_ON(tp->token == Opt_err); 13712a9807c0SEvgeniy Dushistov seq_printf(seq, ",%s", tp->pattern); 13722a9807c0SEvgeniy Dushistov 13732a9807c0SEvgeniy Dushistov return 0; 13742a9807c0SEvgeniy Dushistov } 13752a9807c0SEvgeniy Dushistov 1376726c3342SDavid Howells static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf) 13771da177e4SLinus Torvalds { 1378726c3342SDavid Howells struct super_block *sb = dentry->d_sb; 1379647b7e87SEvgeniy Dushistov struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi; 1380647b7e87SEvgeniy Dushistov unsigned flags = UFS_SB(sb)->s_flags; 13811da177e4SLinus Torvalds struct ufs_super_block_first *usb1; 1382647b7e87SEvgeniy Dushistov struct ufs_super_block_second *usb2; 1383647b7e87SEvgeniy Dushistov struct ufs_super_block_third *usb3; 138441d577aaSColy Li u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds lock_kernel(); 13871da177e4SLinus Torvalds 13887b4ee73eSEvgeniy usb1 = ubh_get_usb_first(uspi); 1389647b7e87SEvgeniy Dushistov usb2 = ubh_get_usb_second(uspi); 1390647b7e87SEvgeniy Dushistov usb3 = ubh_get_usb_third(uspi); 13911da177e4SLinus Torvalds 13921da177e4SLinus Torvalds if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 13931da177e4SLinus Torvalds buf->f_type = UFS2_MAGIC; 1394647b7e87SEvgeniy Dushistov buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize); 1395647b7e87SEvgeniy Dushistov } else { 13961da177e4SLinus Torvalds buf->f_type = UFS_MAGIC; 13971da177e4SLinus Torvalds buf->f_blocks = uspi->s_dsize; 13981da177e4SLinus Torvalds } 1399ee3ffd6cSEvgeniy Dushistov buf->f_bfree = ufs_blkstofrags(uspi->cs_total.cs_nbfree) + 1400ee3ffd6cSEvgeniy Dushistov uspi->cs_total.cs_nffree; 1401ee3ffd6cSEvgeniy Dushistov buf->f_ffree = uspi->cs_total.cs_nifree; 14021da177e4SLinus Torvalds buf->f_bsize = sb->s_blocksize; 14031da177e4SLinus Torvalds buf->f_bavail = (buf->f_bfree > (((long)buf->f_blocks / 100) * uspi->s_minfree)) 14041da177e4SLinus Torvalds ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0; 14051da177e4SLinus Torvalds buf->f_files = uspi->s_ncg * uspi->s_ipg; 14061da177e4SLinus Torvalds buf->f_namelen = UFS_MAXNAMLEN; 140741d577aaSColy Li buf->f_fsid.val[0] = (u32)id; 140841d577aaSColy Li buf->f_fsid.val[1] = (u32)(id >> 32); 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds unlock_kernel(); 14111da177e4SLinus Torvalds 14121da177e4SLinus Torvalds return 0; 14131da177e4SLinus Torvalds } 14141da177e4SLinus Torvalds 1415e18b890bSChristoph Lameter static struct kmem_cache * ufs_inode_cachep; 14161da177e4SLinus Torvalds 14171da177e4SLinus Torvalds static struct inode *ufs_alloc_inode(struct super_block *sb) 14181da177e4SLinus Torvalds { 14191da177e4SLinus Torvalds struct ufs_inode_info *ei; 1420e94b1766SChristoph Lameter ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, GFP_KERNEL); 14211da177e4SLinus Torvalds if (!ei) 14221da177e4SLinus Torvalds return NULL; 14231da177e4SLinus Torvalds ei->vfs_inode.i_version = 1; 14241da177e4SLinus Torvalds return &ei->vfs_inode; 14251da177e4SLinus Torvalds } 14261da177e4SLinus Torvalds 14271da177e4SLinus Torvalds static void ufs_destroy_inode(struct inode *inode) 14281da177e4SLinus Torvalds { 14291da177e4SLinus Torvalds kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); 14301da177e4SLinus Torvalds } 14311da177e4SLinus Torvalds 143251cc5068SAlexey Dobriyan static void init_once(void *foo) 14331da177e4SLinus Torvalds { 14341da177e4SLinus Torvalds struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; 14351da177e4SLinus Torvalds 14361da177e4SLinus Torvalds inode_init_once(&ei->vfs_inode); 14371da177e4SLinus Torvalds } 14381da177e4SLinus Torvalds 14391da177e4SLinus Torvalds static int init_inodecache(void) 14401da177e4SLinus Torvalds { 14411da177e4SLinus Torvalds ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", 14421da177e4SLinus Torvalds sizeof(struct ufs_inode_info), 1443fffb60f9SPaul Jackson 0, (SLAB_RECLAIM_ACCOUNT| 1444fffb60f9SPaul Jackson SLAB_MEM_SPREAD), 144520c2df83SPaul Mundt init_once); 14461da177e4SLinus Torvalds if (ufs_inode_cachep == NULL) 14471da177e4SLinus Torvalds return -ENOMEM; 14481da177e4SLinus Torvalds return 0; 14491da177e4SLinus Torvalds } 14501da177e4SLinus Torvalds 14511da177e4SLinus Torvalds static void destroy_inodecache(void) 14521da177e4SLinus Torvalds { 14531a1d92c1SAlexey Dobriyan kmem_cache_destroy(ufs_inode_cachep); 14541da177e4SLinus Torvalds } 14551da177e4SLinus Torvalds 1456257ba15cSChristoph Hellwig static void ufs_clear_inode(struct inode *inode) 1457257ba15cSChristoph Hellwig { 14589f754758SChristoph Hellwig dquot_drop(inode); 1459257ba15cSChristoph Hellwig } 1460257ba15cSChristoph Hellwig 14611da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 14621da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t); 14631da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t); 14641da177e4SLinus Torvalds #endif 14651da177e4SLinus Torvalds 1466ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ufs_super_ops = { 14671da177e4SLinus Torvalds .alloc_inode = ufs_alloc_inode, 14681da177e4SLinus Torvalds .destroy_inode = ufs_destroy_inode, 14691da177e4SLinus Torvalds .write_inode = ufs_write_inode, 14701da177e4SLinus Torvalds .delete_inode = ufs_delete_inode, 1471257ba15cSChristoph Hellwig .clear_inode = ufs_clear_inode, 14721da177e4SLinus Torvalds .put_super = ufs_put_super, 14731da177e4SLinus Torvalds .write_super = ufs_write_super, 14748c800656SChristoph Hellwig .sync_fs = ufs_sync_fs, 14751da177e4SLinus Torvalds .statfs = ufs_statfs, 14761da177e4SLinus Torvalds .remount_fs = ufs_remount, 14772a9807c0SEvgeniy Dushistov .show_options = ufs_show_options, 14781da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 14791da177e4SLinus Torvalds .quota_read = ufs_quota_read, 14801da177e4SLinus Torvalds .quota_write = ufs_quota_write, 14811da177e4SLinus Torvalds #endif 14821da177e4SLinus Torvalds }; 14831da177e4SLinus Torvalds 14841da177e4SLinus Torvalds #ifdef CONFIG_QUOTA 14851da177e4SLinus Torvalds 14861da177e4SLinus Torvalds /* Read data from quotafile - avoid pagecache and such because we cannot afford 14871da177e4SLinus Torvalds * acquiring the locks... As quota files are never truncated and quota code 14881da177e4SLinus Torvalds * itself serializes the operations (and noone else should touch the files) 14891da177e4SLinus Torvalds * we don't have to be afraid of races */ 14901da177e4SLinus Torvalds static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data, 14911da177e4SLinus Torvalds size_t len, loff_t off) 14921da177e4SLinus Torvalds { 14931da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 14941da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 14951da177e4SLinus Torvalds int err = 0; 14961da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 14971da177e4SLinus Torvalds int tocopy; 14981da177e4SLinus Torvalds size_t toread; 14991da177e4SLinus Torvalds struct buffer_head *bh; 15001da177e4SLinus Torvalds loff_t i_size = i_size_read(inode); 15011da177e4SLinus Torvalds 15021da177e4SLinus Torvalds if (off > i_size) 15031da177e4SLinus Torvalds return 0; 15041da177e4SLinus Torvalds if (off+len > i_size) 15051da177e4SLinus Torvalds len = i_size-off; 15061da177e4SLinus Torvalds toread = len; 15071da177e4SLinus Torvalds while (toread > 0) { 15081da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < toread ? 15091da177e4SLinus Torvalds sb->s_blocksize - offset : toread; 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 0, &err); 15121da177e4SLinus Torvalds if (err) 15131da177e4SLinus Torvalds return err; 15141da177e4SLinus Torvalds if (!bh) /* A hole? */ 15151da177e4SLinus Torvalds memset(data, 0, tocopy); 15161da177e4SLinus Torvalds else { 15171da177e4SLinus Torvalds memcpy(data, bh->b_data+offset, tocopy); 15181da177e4SLinus Torvalds brelse(bh); 15191da177e4SLinus Torvalds } 15201da177e4SLinus Torvalds offset = 0; 15211da177e4SLinus Torvalds toread -= tocopy; 15221da177e4SLinus Torvalds data += tocopy; 15231da177e4SLinus Torvalds blk++; 15241da177e4SLinus Torvalds } 15251da177e4SLinus Torvalds return len; 15261da177e4SLinus Torvalds } 15271da177e4SLinus Torvalds 15281da177e4SLinus Torvalds /* Write to quotafile */ 15291da177e4SLinus Torvalds static ssize_t ufs_quota_write(struct super_block *sb, int type, 15301da177e4SLinus Torvalds const char *data, size_t len, loff_t off) 15311da177e4SLinus Torvalds { 15321da177e4SLinus Torvalds struct inode *inode = sb_dqopt(sb)->files[type]; 15331da177e4SLinus Torvalds sector_t blk = off >> sb->s_blocksize_bits; 15341da177e4SLinus Torvalds int err = 0; 15351da177e4SLinus Torvalds int offset = off & (sb->s_blocksize - 1); 15361da177e4SLinus Torvalds int tocopy; 15371da177e4SLinus Torvalds size_t towrite = len; 15381da177e4SLinus Torvalds struct buffer_head *bh; 15391da177e4SLinus Torvalds 15405c81a419SArjan van de Ven mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); 15411da177e4SLinus Torvalds while (towrite > 0) { 15421da177e4SLinus Torvalds tocopy = sb->s_blocksize - offset < towrite ? 15431da177e4SLinus Torvalds sb->s_blocksize - offset : towrite; 15441da177e4SLinus Torvalds 15451da177e4SLinus Torvalds bh = ufs_bread(inode, blk, 1, &err); 15461da177e4SLinus Torvalds if (!bh) 15471da177e4SLinus Torvalds goto out; 15481da177e4SLinus Torvalds lock_buffer(bh); 15491da177e4SLinus Torvalds memcpy(bh->b_data+offset, data, tocopy); 15501da177e4SLinus Torvalds flush_dcache_page(bh->b_page); 15511da177e4SLinus Torvalds set_buffer_uptodate(bh); 15521da177e4SLinus Torvalds mark_buffer_dirty(bh); 15531da177e4SLinus Torvalds unlock_buffer(bh); 15541da177e4SLinus Torvalds brelse(bh); 15551da177e4SLinus Torvalds offset = 0; 15561da177e4SLinus Torvalds towrite -= tocopy; 15571da177e4SLinus Torvalds data += tocopy; 15581da177e4SLinus Torvalds blk++; 15591da177e4SLinus Torvalds } 15601da177e4SLinus Torvalds out: 156115b2fe39SEvgeniy Polyakov if (len == towrite) { 15621b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 15631da177e4SLinus Torvalds return err; 156415b2fe39SEvgeniy Polyakov } 15651da177e4SLinus Torvalds if (inode->i_size < off+len-towrite) 15661da177e4SLinus Torvalds i_size_write(inode, off+len-towrite); 15671da177e4SLinus Torvalds inode->i_version++; 15681da177e4SLinus Torvalds inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; 15691da177e4SLinus Torvalds mark_inode_dirty(inode); 15701b1dcc1bSJes Sorensen mutex_unlock(&inode->i_mutex); 15711da177e4SLinus Torvalds return len - towrite; 15721da177e4SLinus Torvalds } 15731da177e4SLinus Torvalds 15741da177e4SLinus Torvalds #endif 15751da177e4SLinus Torvalds 1576454e2398SDavid Howells static int ufs_get_sb(struct file_system_type *fs_type, 1577454e2398SDavid Howells int flags, const char *dev_name, void *data, struct vfsmount *mnt) 15781da177e4SLinus Torvalds { 1579454e2398SDavid Howells return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds 15821da177e4SLinus Torvalds static struct file_system_type ufs_fs_type = { 15831da177e4SLinus Torvalds .owner = THIS_MODULE, 15841da177e4SLinus Torvalds .name = "ufs", 15851da177e4SLinus Torvalds .get_sb = ufs_get_sb, 15861da177e4SLinus Torvalds .kill_sb = kill_block_super, 15871da177e4SLinus Torvalds .fs_flags = FS_REQUIRES_DEV, 15881da177e4SLinus Torvalds }; 15891da177e4SLinus Torvalds 15901da177e4SLinus Torvalds static int __init init_ufs_fs(void) 15911da177e4SLinus Torvalds { 15921da177e4SLinus Torvalds int err = init_inodecache(); 15931da177e4SLinus Torvalds if (err) 15941da177e4SLinus Torvalds goto out1; 15951da177e4SLinus Torvalds err = register_filesystem(&ufs_fs_type); 15961da177e4SLinus Torvalds if (err) 15971da177e4SLinus Torvalds goto out; 15981da177e4SLinus Torvalds return 0; 15991da177e4SLinus Torvalds out: 16001da177e4SLinus Torvalds destroy_inodecache(); 16011da177e4SLinus Torvalds out1: 16021da177e4SLinus Torvalds return err; 16031da177e4SLinus Torvalds } 16041da177e4SLinus Torvalds 16051da177e4SLinus Torvalds static void __exit exit_ufs_fs(void) 16061da177e4SLinus Torvalds { 16071da177e4SLinus Torvalds unregister_filesystem(&ufs_fs_type); 16081da177e4SLinus Torvalds destroy_inodecache(); 16091da177e4SLinus Torvalds } 16101da177e4SLinus Torvalds 16111da177e4SLinus Torvalds module_init(init_ufs_fs) 16121da177e4SLinus Torvalds module_exit(exit_ufs_fs) 16131da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 1614