| /* |
| * linux/fs/ufs/super.c |
| * |
| * Copyright (C) 1998 |
| * Daniel Pirkl <daniel.pirkl@email.cz> |
| * Charles University, Faculty of Mathematics and Physics |
| */ |
| |
| /* Derived from |
| * |
| * linux/fs/ext2/super.c |
| * |
| * Copyright (C) 1992, 1993, 1994, 1995 |
| * Remy Card (card@masi.ibp.fr) |
| * Laboratoire MASI - Institut Blaise Pascal |
| * Universite Pierre et Marie Curie (Paris VI) |
| * |
| * from |
| * |
| * linux/fs/minix/inode.c |
| * |
| * Copyright (C) 1991, 1992 Linus Torvalds |
| * |
| * Big-endian to little-endian byte-swapping/bitmaps by |
| * David S. Miller (davem@caip.rutgers.edu), 1995 |
| */ |
| |
| /* |
| * Inspired by |
| * |
| * linux/fs/ufs/super.c |
| * |
| * Copyright (C) 1996 |
| * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) |
| * Laboratory for Computer Science Research Computing Facility |
| * Rutgers, The State University of New Jersey |
| * |
| * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) |
| * |
| * Kernel module support added on 96/04/26 by |
| * Stefan Reinauer <stepan@home.culture.mipt.ru> |
| * |
| * Module usage counts added on 96/04/29 by |
| * Gertjan van Wingerde <gertjan@cs.vu.nl> |
| * |
| * Clean swab support on 19970406 by |
| * Francois-Rene Rideau <fare@tunes.org> |
| * |
| * 4.4BSD (FreeBSD) support added on February 1st 1998 by |
| * Niels Kristian Bech Jensen <nkbj@image.dk> partially based |
| * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. |
| * |
| * NeXTstep support added on February 5th 1998 by |
| * Niels Kristian Bech Jensen <nkbj@image.dk>. |
| * |
| * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998 |
| * |
| * HP/UX hfs filesystem support added by |
| * Martin K. Petersen <mkp@mkp.net>, August 1999 |
| * |
| */ |
| |
| |
| #include <linux/config.h> |
| #include <linux/module.h> |
| |
| #include <stdarg.h> |
| |
| #include <asm/bitops.h> |
| #include <asm/uaccess.h> |
| #include <asm/system.h> |
| |
| #include <linux/errno.h> |
| #include <linux/fs.h> |
| #include <linux/ufs_fs.h> |
| #include <linux/slab.h> |
| #include <linux/sched.h> |
| #include <linux/stat.h> |
| #include <linux/string.h> |
| #include <linux/locks.h> |
| #include <linux/blkdev.h> |
| #include <linux/init.h> |
| |
| #include "swab.h" |
| #include "util.h" |
| |
| #undef UFS_SUPER_DEBUG |
| #undef UFS_SUPER_DEBUG_MORE |
| |
| #ifdef UFS_SUPER_DEBUG |
| #define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x; |
| #else |
| #define UFSD(x) |
| #endif |
| |
| #ifdef UFS_SUPER_DEBUG_MORE |
| /* |
| * Print contents of ufs_super_block, useful for debugging |
| */ |
| void ufs_print_super_stuff(struct super_block *sb, |
| struct ufs_super_block_first * usb1, |
| struct ufs_super_block_second * usb2, |
| struct ufs_super_block_third * usb3) |
| { |
| printk("ufs_print_super_stuff\n"); |
| printk("size of usb: %u\n", sizeof(struct ufs_super_block)); |
| printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb3->fs_magic)); |
| printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); |
| printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); |
| printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); |
| printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); |
| printk(" cgoffset: %u\n", fs32_to_cpu(sb, usb1->fs_cgoffset)); |
| printk(" ~cgmask: 0x%x\n", ~fs32_to_cpu(sb, usb1->fs_cgmask)); |
| printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); |
| printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); |
| printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); |
| printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); |
| printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); |
| printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); |
| printk(" fragshift: %u\n", fs32_to_cpu(sb, usb1->fs_fragshift)); |
| printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); |
| printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); |
| printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); |
| printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); |
| printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); |
| printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); |
| printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); |
| printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); |
| printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); |
| printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); |
| printk(" fstodb: %u\n", fs32_to_cpu(sb, usb1->fs_fsbtodb)); |
| printk(" contigsumsize: %d\n", fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize)); |
| printk(" postblformat: %u\n", fs32_to_cpu(sb, usb3->fs_postblformat)); |
| printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); |
| printk(" ndir %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); |
| printk(" nifree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); |
| printk(" nbfree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); |
| printk(" nffree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); |
| printk("\n"); |
| } |
| |
| |
| /* |
| * Print contents of ufs_cylinder_group, useful for debugging |
| */ |
| void ufs_print_cylinder_stuff(struct super_block *sb, struct ufs_cylinder_group *cg) |
| { |
| printk("\nufs_print_cylinder_stuff\n"); |
| printk("size of ucg: %u\n", sizeof(struct ufs_cylinder_group)); |
| printk(" magic: %x\n", fs32_to_cpu(sb, cg->cg_magic)); |
| printk(" time: %u\n", fs32_to_cpu(sb, cg->cg_time)); |
| printk(" cgx: %u\n", fs32_to_cpu(sb, cg->cg_cgx)); |
| printk(" ncyl: %u\n", fs16_to_cpu(sb, cg->cg_ncyl)); |
| printk(" niblk: %u\n", fs16_to_cpu(sb, cg->cg_niblk)); |
| printk(" ndblk: %u\n", fs32_to_cpu(sb, cg->cg_ndblk)); |
| printk(" cs_ndir: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir)); |
| printk(" cs_nbfree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree)); |
| printk(" cs_nifree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree)); |
| printk(" cs_nffree: %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree)); |
| printk(" rotor: %u\n", fs32_to_cpu(sb, cg->cg_rotor)); |
| printk(" frotor: %u\n", fs32_to_cpu(sb, cg->cg_frotor)); |
| printk(" irotor: %u\n", fs32_to_cpu(sb, cg->cg_irotor)); |
| printk(" frsum: %u, %u, %u, %u, %u, %u, %u, %u\n", |
| fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]), |
| fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]), |
| fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]), |
| fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7])); |
| printk(" btotoff: %u\n", fs32_to_cpu(sb, cg->cg_btotoff)); |
| printk(" boff: %u\n", fs32_to_cpu(sb, cg->cg_boff)); |
| printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); |
| printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); |
| printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); |
| printk(" clustersumoff %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); |
| printk(" clusteroff %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); |
| printk(" nclusterblks %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); |
| printk("\n"); |
| } |
| #endif /* UFS_SUPER_DEBUG_MORE */ |
| |
| static struct super_operations ufs_super_ops; |
| |
| static char error_buf[1024]; |
| |
| void ufs_error (struct super_block * sb, const char * function, |
| const char * fmt, ...) |
| { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| va_list args; |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| usb1 = ubh_get_usb_first(USPI_UBH); |
| |
| if (!(sb->s_flags & MS_RDONLY)) { |
| usb1->fs_clean = UFS_FSBAD; |
| ubh_mark_buffer_dirty(USPI_UBH); |
| sb->s_dirt = 1; |
| sb->s_flags |= MS_RDONLY; |
| } |
| va_start (args, fmt); |
| vsprintf (error_buf, fmt, args); |
| va_end (args); |
| switch (sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_ONERROR) { |
| case UFS_MOUNT_ONERROR_PANIC: |
| panic ("UFS-fs panic (device %s): %s: %s\n", |
| sb->s_id, function, error_buf); |
| |
| case UFS_MOUNT_ONERROR_LOCK: |
| case UFS_MOUNT_ONERROR_UMOUNT: |
| case UFS_MOUNT_ONERROR_REPAIR: |
| printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n", |
| sb->s_id, function, error_buf); |
| } |
| } |
| |
| void ufs_panic (struct super_block * sb, const char * function, |
| const char * fmt, ...) |
| { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| va_list args; |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| usb1 = ubh_get_usb_first(USPI_UBH); |
| |
| if (!(sb->s_flags & MS_RDONLY)) { |
| usb1->fs_clean = UFS_FSBAD; |
| ubh_mark_buffer_dirty(USPI_UBH); |
| sb->s_dirt = 1; |
| } |
| va_start (args, fmt); |
| vsprintf (error_buf, fmt, args); |
| va_end (args); |
| sb->s_flags |= MS_RDONLY; |
| printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n", |
| sb->s_id, function, error_buf); |
| } |
| |
| void ufs_warning (struct super_block * sb, const char * function, |
| const char * fmt, ...) |
| { |
| va_list args; |
| |
| va_start (args, fmt); |
| vsprintf (error_buf, fmt, args); |
| va_end (args); |
| printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n", |
| sb->s_id, function, error_buf); |
| } |
| |
| static int ufs_parse_options (char * options, unsigned * mount_options) |
| { |
| char * this_char; |
| char * value; |
| |
| UFSD(("ENTER\n")) |
| |
| if (!options) |
| return 1; |
| |
| for (this_char = strtok (options, ","); |
| this_char != NULL; |
| this_char = strtok (NULL, ",")) { |
| |
| if ((value = strchr (this_char, '=')) != NULL) |
| *value++ = 0; |
| if (!strcmp (this_char, "ufstype")) { |
| ufs_clear_opt (*mount_options, UFSTYPE); |
| if (!strcmp (value, "old")) |
| ufs_set_opt (*mount_options, UFSTYPE_OLD); |
| else if (!strcmp (value, "sun")) |
| ufs_set_opt (*mount_options, UFSTYPE_SUN); |
| else if (!strcmp (value, "44bsd")) |
| ufs_set_opt (*mount_options, UFSTYPE_44BSD); |
| else if (!strcmp (value, "nextstep")) |
| ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP); |
| else if (!strcmp (value, "nextstep-cd")) |
| ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD); |
| else if (!strcmp (value, "openstep")) |
| ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP); |
| else if (!strcmp (value, "sunx86")) |
| ufs_set_opt (*mount_options, UFSTYPE_SUNx86); |
| else if (!strcmp (value, "hp")) |
| ufs_set_opt (*mount_options, UFSTYPE_HP); |
| else { |
| printk ("UFS-fs: Invalid type option: %s\n", value); |
| return 0; |
| } |
| } |
| else if (!strcmp (this_char, "onerror")) { |
| ufs_clear_opt (*mount_options, ONERROR); |
| if (!strcmp (value, "panic")) |
| ufs_set_opt (*mount_options, ONERROR_PANIC); |
| else if (!strcmp (value, "lock")) |
| ufs_set_opt (*mount_options, ONERROR_LOCK); |
| else if (!strcmp (value, "umount")) |
| ufs_set_opt (*mount_options, ONERROR_UMOUNT); |
| else if (!strcmp (value, "repair")) { |
| printk("UFS-fs: Unable to do repair on error, " |
| "will lock lock instead \n"); |
| ufs_set_opt (*mount_options, ONERROR_REPAIR); |
| } |
| else { |
| printk ("UFS-fs: Invalid action onerror: %s\n", value); |
| return 0; |
| } |
| } |
| else { |
| printk("UFS-fs: Invalid option: %s\n", this_char); |
| return 0; |
| } |
| } |
| return 1; |
| } |
| |
| /* |
| * Read on-disk structures associated with cylinder groups |
| */ |
| int ufs_read_cylinder_structures (struct super_block * sb) { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_buffer_head * ubh; |
| unsigned char * base, * space; |
| unsigned size, blks, i; |
| |
| UFSD(("ENTER\n")) |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| |
| /* |
| * Read cs structures from (usually) first data block |
| * on the device. |
| */ |
| size = uspi->s_cssize; |
| blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; |
| base = space = kmalloc(size, GFP_KERNEL); |
| if (!base) |
| goto failed; |
| for (i = 0; i < blks; i += uspi->s_fpb) { |
| size = uspi->s_bsize; |
| if (i + uspi->s_fpb > blks) |
| size = (blks - i) * uspi->s_fsize; |
| ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
| if (!ubh) |
| goto failed; |
| ubh_ubhcpymem (space, ubh, size); |
| sb->u.ufs_sb.s_csp[ufs_fragstoblks(i)] = (struct ufs_csum *)space; |
| space += size; |
| ubh_brelse (ubh); |
| ubh = NULL; |
| } |
| |
| /* |
| * Read cylinder group (we read only first fragment from block |
| * at this time) and prepare internal data structures for cg caching. |
| */ |
| if (!(sb->u.ufs_sb.s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL))) |
| goto failed; |
| for (i = 0; i < uspi->s_ncg; i++) |
| sb->u.ufs_sb.s_ucg[i] = NULL; |
| for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { |
| sb->u.ufs_sb.s_ucpi[i] = NULL; |
| sb->u.ufs_sb.s_cgno[i] = UFS_CGNO_EMPTY; |
| } |
| for (i = 0; i < uspi->s_ncg; i++) { |
| UFSD(("read cg %u\n", i)) |
| if (!(sb->u.ufs_sb.s_ucg[i] = sb_bread(sb, ufs_cgcmin(i)))) |
| goto failed; |
| if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sb->u.ufs_sb.s_ucg[i]->b_data)) |
| goto failed; |
| #ifdef UFS_SUPER_DEBUG_MORE |
| ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sb->u.ufs_sb.s_ucg[i]->b_data); |
| #endif |
| } |
| for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { |
| if (!(sb->u.ufs_sb.s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) |
| goto failed; |
| sb->u.ufs_sb.s_cgno[i] = UFS_CGNO_EMPTY; |
| } |
| sb->u.ufs_sb.s_cg_loaded = 0; |
| UFSD(("EXIT\n")) |
| return 1; |
| |
| failed: |
| if (base) kfree (base); |
| if (sb->u.ufs_sb.s_ucg) { |
| for (i = 0; i < uspi->s_ncg; i++) |
| if (sb->u.ufs_sb.s_ucg[i]) brelse (sb->u.ufs_sb.s_ucg[i]); |
| kfree (sb->u.ufs_sb.s_ucg); |
| for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) |
| if (sb->u.ufs_sb.s_ucpi[i]) kfree (sb->u.ufs_sb.s_ucpi[i]); |
| } |
| UFSD(("EXIT (FAILED)\n")) |
| return 0; |
| } |
| |
| /* |
| * Put on-disk structures associated with cylinder groups and |
| * write them back to disk |
| */ |
| void ufs_put_cylinder_structures (struct super_block * sb) { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_buffer_head * ubh; |
| unsigned char * base, * space; |
| unsigned blks, size, i; |
| |
| UFSD(("ENTER\n")) |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| |
| size = uspi->s_cssize; |
| blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift; |
| base = space = (char*) sb->u.ufs_sb.s_csp[0]; |
| for (i = 0; i < blks; i += uspi->s_fpb) { |
| size = uspi->s_bsize; |
| if (i + uspi->s_fpb > blks) |
| size = (blks - i) * uspi->s_fsize; |
| ubh = ubh_bread(sb, uspi->s_csaddr + i, size); |
| ubh_memcpyubh (ubh, space, size); |
| space += size; |
| ubh_mark_buffer_uptodate (ubh, 1); |
| ubh_mark_buffer_dirty (ubh); |
| ubh_brelse (ubh); |
| } |
| for (i = 0; i < sb->u.ufs_sb.s_cg_loaded; i++) { |
| ufs_put_cylinder (sb, i); |
| kfree (sb->u.ufs_sb.s_ucpi[i]); |
| } |
| for (; i < UFS_MAX_GROUP_LOADED; i++) |
| kfree (sb->u.ufs_sb.s_ucpi[i]); |
| for (i = 0; i < uspi->s_ncg; i++) |
| brelse (sb->u.ufs_sb.s_ucg[i]); |
| kfree (sb->u.ufs_sb.s_ucg); |
| kfree (base); |
| UFSD(("EXIT\n")) |
| } |
| |
| static int ufs_fill_super(struct super_block *sb, void *data, int silent) |
| { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| struct ufs_super_block_second * usb2; |
| struct ufs_super_block_third * usb3; |
| struct ufs_buffer_head * ubh; |
| struct inode *inode; |
| unsigned block_size, super_block_size; |
| unsigned flags; |
| |
| uspi = NULL; |
| ubh = NULL; |
| flags = 0; |
| |
| UFSD(("ENTER\n")) |
| |
| UFSD(("flag %u\n", (int)(sb->s_flags & MS_RDONLY))) |
| |
| #ifndef CONFIG_UFS_FS_WRITE |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk("ufs was compiled with read-only support, " |
| "can't be mounted as read-write\n"); |
| goto failed; |
| } |
| #endif |
| /* |
| * Set default mount options |
| * Parse mount options |
| */ |
| sb->u.ufs_sb.s_mount_opt = 0; |
| ufs_set_opt (sb->u.ufs_sb.s_mount_opt, ONERROR_LOCK); |
| if (!ufs_parse_options ((char *) data, &sb->u.ufs_sb.s_mount_opt)) { |
| printk("wrong mount options\n"); |
| goto failed; |
| } |
| if (!(sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE)) { |
| printk("You didn't specify the type of your ufs filesystem\n\n" |
| "mount -t ufs -o ufstype=" |
| "sun|sunx86|44bsd|old|hp|nextstep|netxstep-cd|openstep ...\n\n" |
| ">>>WARNING<<< Wrong ufstype may corrupt your filesystem, " |
| "default is ufstype=old\n"); |
| ufs_set_opt (sb->u.ufs_sb.s_mount_opt, UFSTYPE_OLD); |
| } |
| |
| sb->u.ufs_sb.s_uspi = uspi = |
| kmalloc (sizeof(struct ufs_sb_private_info), GFP_KERNEL); |
| if (!uspi) |
| goto failed; |
| |
| /* Keep 2Gig file limit. Some UFS variants need to override |
| this but as I don't know which I'll let those in the know loosen |
| the rules */ |
| |
| switch (sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) { |
| case UFS_MOUNT_UFSTYPE_44BSD: |
| UFSD(("ufstype=44bsd\n")) |
| uspi->s_fsize = block_size = 512; |
| uspi->s_fmask = ~(512 - 1); |
| uspi->s_fshift = 9; |
| uspi->s_sbsize = super_block_size = 1536; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_SUN: |
| UFSD(("ufstype=sun\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| uspi->s_maxsymlinklen = 56; |
| flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN; |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_SUNx86: |
| UFSD(("ufstype=sunx86\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| uspi->s_maxsymlinklen = 56; |
| flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN; |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_OLD: |
| UFSD(("ufstype=old\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk(KERN_INFO "ufstype=old is supported read-only\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_NEXTSTEP: |
| UFSD(("ufstype=nextstep\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk(KERN_INFO "ufstype=nextstep is supported read-only\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD: |
| UFSD(("ufstype=nextstep-cd\n")) |
| uspi->s_fsize = block_size = 2048; |
| uspi->s_fmask = ~(2048 - 1); |
| uspi->s_fshift = 11; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_OPENSTEP: |
| UFSD(("ufstype=openstep\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD; |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk(KERN_INFO "ufstype=openstep is supported read-only\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| break; |
| |
| case UFS_MOUNT_UFSTYPE_HP: |
| UFSD(("ufstype=hp\n")) |
| uspi->s_fsize = block_size = 1024; |
| uspi->s_fmask = ~(1024 - 1); |
| uspi->s_fshift = 10; |
| uspi->s_sbsize = super_block_size = 2048; |
| uspi->s_sbbase = 0; |
| flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD; |
| if (!(sb->s_flags & MS_RDONLY)) { |
| printk(KERN_INFO "ufstype=hp is supported read-only\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| break; |
| default: |
| printk("unknown ufstype\n"); |
| goto failed; |
| } |
| |
| again: |
| sb_set_blocksize(sb, block_size); |
| |
| /* |
| * read ufs super block from device |
| */ |
| ubh = ubh_bread_uspi (uspi, sb, uspi->s_sbbase + UFS_SBLOCK/block_size, super_block_size); |
| if (!ubh) |
| goto failed; |
| |
| usb1 = ubh_get_usb_first(USPI_UBH); |
| usb2 = ubh_get_usb_second(USPI_UBH); |
| usb3 = ubh_get_usb_third(USPI_UBH); |
| |
| /* |
| * Check ufs magic number |
| */ |
| switch (__constant_le32_to_cpu(usb3->fs_magic)) { |
| case UFS_MAGIC: |
| case UFS_MAGIC_LFN: |
| case UFS_MAGIC_FEA: |
| case UFS_MAGIC_4GB: |
| sb->u.ufs_sb.s_bytesex = BYTESEX_LE; |
| goto magic_found; |
| } |
| switch (__constant_be32_to_cpu(usb3->fs_magic)) { |
| case UFS_MAGIC: |
| case UFS_MAGIC_LFN: |
| case UFS_MAGIC_FEA: |
| case UFS_MAGIC_4GB: |
| sb->u.ufs_sb.s_bytesex = BYTESEX_BE; |
| goto magic_found; |
| } |
| |
| if ((((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) |
| || ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) |
| || ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) |
| && uspi->s_sbbase < 256) { |
| ubh_brelse_uspi(uspi); |
| ubh = NULL; |
| uspi->s_sbbase += 8; |
| goto again; |
| } |
| printk("ufs_read_super: bad magic number\n"); |
| goto failed; |
| |
| magic_found: |
| /* |
| * Check block and fragment sizes |
| */ |
| uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize); |
| uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize); |
| uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize); |
| uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); |
| uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); |
| |
| /* block size must be a power-of-two between 4k and 32k */ |
| if ((uspi->s_bsize & (uspi->s_bsize-1)) || |
| (uspi->s_bsize < 4096 || uspi->s_bsize > 32768)) { |
| printk("ufs_read_super: fs_bsize %u != {4096, 8192, 16384, 32768}\n", uspi->s_bsize); |
| goto failed; |
| } |
| /* fragment size must be a power-of-two between 512 and 4096 bytes */ |
| if ((uspi->s_fsize & (uspi->s_fsize-1)) || |
| (uspi->s_fsize < 512 || uspi->s_fsize > 4096)) { |
| printk("ufs_read_super: fs_fsize %u != {512, 1024, 2048. 4096}\n", uspi->s_fsize); |
| goto failed; |
| } |
| if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) { |
| ubh_brelse_uspi(uspi); |
| ubh = NULL; |
| block_size = uspi->s_fsize; |
| super_block_size = uspi->s_sbsize; |
| UFSD(("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size)) |
| goto again; |
| } |
| |
| #ifdef UFS_SUPER_DEBUG_MORE |
| ufs_print_super_stuff(sb, usb1, usb2, usb3); |
| #endif |
| |
| /* |
| * Check, if file system was correctly unmounted. |
| * If not, make it read only. |
| */ |
| if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) || |
| ((flags & UFS_ST_MASK) == UFS_ST_OLD) || |
| (((flags & UFS_ST_MASK) == UFS_ST_SUN || |
| (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && |
| (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) { |
| switch(usb1->fs_clean) { |
| case UFS_FSCLEAN: |
| UFSD(("fs is clean\n")) |
| break; |
| case UFS_FSSTABLE: |
| UFSD(("fs is stable\n")) |
| break; |
| case UFS_FSOSF1: |
| UFSD(("fs is DEC OSF/1\n")) |
| break; |
| case UFS_FSACTIVE: |
| printk("ufs_read_super: fs is active\n"); |
| sb->s_flags |= MS_RDONLY; |
| break; |
| case UFS_FSBAD: |
| printk("ufs_read_super: fs is bad\n"); |
| sb->s_flags |= MS_RDONLY; |
| break; |
| default: |
| printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean); |
| sb->s_flags |= MS_RDONLY; |
| break; |
| } |
| } |
| else { |
| printk("ufs_read_super: fs needs fsck\n"); |
| sb->s_flags |= MS_RDONLY; |
| } |
| |
| /* |
| * Read ufs_super_block into internal data structures |
| */ |
| sb->s_op = &ufs_super_ops; |
| sb->dq_op = NULL; /***/ |
| sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); |
| |
| uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); |
| uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno); |
| uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno); |
| uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno); |
| uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset); |
| uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); |
| uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); |
| uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); |
| uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg); |
| /* s_bsize already set */ |
| /* s_fsize already set */ |
| uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag); |
| uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree); |
| uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask); |
| uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask); |
| uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift); |
| uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift); |
| uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift); |
| uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb); |
| /* s_sbsize already set */ |
| uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask); |
| uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift); |
| uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir); |
| uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb); |
| uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf); |
| uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3); |
| uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave); |
| uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew); |
| uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr); |
| uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize); |
| uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize); |
| uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak); |
| uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect); |
| uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); |
| uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); |
| uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); |
| uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_cpc); |
| uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize); |
| uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); |
| uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); |
| uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); |
| uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos); |
| uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff); |
| uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff); |
| |
| /* |
| * Compute another frequently used values |
| */ |
| uspi->s_fpbmask = uspi->s_fpb - 1; |
| uspi->s_apbshift = uspi->s_bshift - 2; |
| uspi->s_2apbshift = uspi->s_apbshift * 2; |
| uspi->s_3apbshift = uspi->s_apbshift * 3; |
| uspi->s_apb = 1 << uspi->s_apbshift; |
| uspi->s_2apb = 1 << uspi->s_2apbshift; |
| uspi->s_3apb = 1 << uspi->s_3apbshift; |
| uspi->s_apbmask = uspi->s_apb - 1; |
| uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS; |
| uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift; |
| uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift; |
| uspi->s_bpf = uspi->s_fsize << 3; |
| uspi->s_bpfshift = uspi->s_fshift + 3; |
| uspi->s_bpfmask = uspi->s_bpf - 1; |
| if ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == |
| UFS_MOUNT_UFSTYPE_44BSD) |
| uspi->s_maxsymlinklen = |
| fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_maxsymlinklen); |
| |
| sb->u.ufs_sb.s_flags = flags; |
| |
| inode = iget(sb, UFS_ROOTINO); |
| if (!inode || is_bad_inode(inode)) |
| goto failed; |
| sb->s_root = d_alloc_root(inode); |
| if (!sb->s_root) |
| goto dalloc_failed; |
| |
| |
| /* |
| * Read cylinder group structures |
| */ |
| if (!(sb->s_flags & MS_RDONLY)) |
| if (!ufs_read_cylinder_structures(sb)) |
| goto failed; |
| |
| UFSD(("EXIT\n")) |
| return 0; |
| |
| dalloc_failed: |
| iput(inode); |
| failed: |
| if (ubh) ubh_brelse_uspi (uspi); |
| if (uspi) kfree (uspi); |
| UFSD(("EXIT (FAILED)\n")) |
| return -EINVAL; |
| } |
| |
| void ufs_write_super (struct super_block * sb) { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| struct ufs_super_block_third * usb3; |
| unsigned flags; |
| |
| UFSD(("ENTER\n")) |
| flags = sb->u.ufs_sb.s_flags; |
| uspi = sb->u.ufs_sb.s_uspi; |
| usb1 = ubh_get_usb_first(USPI_UBH); |
| usb3 = ubh_get_usb_third(USPI_UBH); |
| |
| if (!(sb->s_flags & MS_RDONLY)) { |
| usb1->fs_time = cpu_to_fs32(sb, CURRENT_TIME); |
| if ((flags & UFS_ST_MASK) == UFS_ST_SUN |
| || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
| ufs_set_fs_state(sb, usb1, usb3, |
| UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); |
| ubh_mark_buffer_dirty (USPI_UBH); |
| } |
| sb->s_dirt = 0; |
| UFSD(("EXIT\n")) |
| } |
| |
| void ufs_put_super (struct super_block * sb) |
| { |
| struct ufs_sb_private_info * uspi; |
| |
| UFSD(("ENTER\n")) |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| |
| if (!(sb->s_flags & MS_RDONLY)) |
| ufs_put_cylinder_structures (sb); |
| |
| ubh_brelse_uspi (uspi); |
| kfree (sb->u.ufs_sb.s_uspi); |
| return; |
| } |
| |
| |
| int ufs_remount (struct super_block * sb, int * mount_flags, char * data) |
| { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| struct ufs_super_block_third * usb3; |
| unsigned new_mount_opt, ufstype; |
| unsigned flags; |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| flags = sb->u.ufs_sb.s_flags; |
| usb1 = ubh_get_usb_first(USPI_UBH); |
| usb3 = ubh_get_usb_third(USPI_UBH); |
| |
| /* |
| * Allow the "check" option to be passed as a remount option. |
| * It is not possible to change ufstype option during remount |
| */ |
| ufstype = sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE; |
| new_mount_opt = 0; |
| ufs_set_opt (new_mount_opt, ONERROR_LOCK); |
| if (!ufs_parse_options (data, &new_mount_opt)) |
| return -EINVAL; |
| if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) { |
| new_mount_opt |= ufstype; |
| } |
| else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) { |
| printk("ufstype can't be changed during remount\n"); |
| return -EINVAL; |
| } |
| |
| if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { |
| sb->u.ufs_sb.s_mount_opt = new_mount_opt; |
| return 0; |
| } |
| |
| /* |
| * fs was mouted as rw, remounting ro |
| */ |
| if (*mount_flags & MS_RDONLY) { |
| ufs_put_cylinder_structures(sb); |
| usb1->fs_time = cpu_to_fs32(sb, CURRENT_TIME); |
| if ((flags & UFS_ST_MASK) == UFS_ST_SUN |
| || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) |
| ufs_set_fs_state(sb, usb1, usb3, |
| UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)); |
| ubh_mark_buffer_dirty (USPI_UBH); |
| sb->s_dirt = 0; |
| sb->s_flags |= MS_RDONLY; |
| } |
| /* |
| * fs was mounted as ro, remounting rw |
| */ |
| else { |
| #ifndef CONFIG_UFS_FS_WRITE |
| printk("ufs was compiled with read-only support, " |
| "can't be mounted as read-write\n"); |
| return -EINVAL; |
| #else |
| if (ufstype != UFS_MOUNT_UFSTYPE_SUN && |
| ufstype != UFS_MOUNT_UFSTYPE_44BSD && |
| ufstype != UFS_MOUNT_UFSTYPE_SUNx86) { |
| printk("this ufstype is read-only supported\n"); |
| return -EINVAL; |
| } |
| if (!ufs_read_cylinder_structures (sb)) { |
| printk("failed during remounting\n"); |
| return -EPERM; |
| } |
| sb->s_flags &= ~MS_RDONLY; |
| #endif |
| } |
| sb->u.ufs_sb.s_mount_opt = new_mount_opt; |
| return 0; |
| } |
| |
| int ufs_statfs (struct super_block * sb, struct statfs * buf) |
| { |
| struct ufs_sb_private_info * uspi; |
| struct ufs_super_block_first * usb1; |
| |
| uspi = sb->u.ufs_sb.s_uspi; |
| usb1 = ubh_get_usb_first (USPI_UBH); |
| |
| buf->f_type = UFS_MAGIC; |
| buf->f_bsize = sb->s_blocksize; |
| buf->f_blocks = uspi->s_dsize; |
| buf->f_bfree = ufs_blkstofrags(fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)) + |
| fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree); |
| buf->f_bavail = (buf->f_bfree > ((buf->f_blocks / 100) * uspi->s_minfree)) |
| ? (buf->f_bfree - ((buf->f_blocks / 100) * uspi->s_minfree)) : 0; |
| buf->f_files = uspi->s_ncg * uspi->s_ipg; |
| buf->f_ffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree); |
| buf->f_namelen = UFS_MAXNAMLEN; |
| return 0; |
| } |
| |
| static kmem_cache_t * ufs_inode_cachep; |
| |
| static struct inode *ufs_alloc_inode(struct super_block *sb) |
| { |
| struct ufs_inode_info *ei; |
| ei = (struct ufs_inode_info *)kmem_cache_alloc(ufs_inode_cachep, SLAB_KERNEL); |
| if (!ei) |
| return NULL; |
| return &ei->vfs_inode; |
| } |
| |
| static void ufs_destroy_inode(struct inode *inode) |
| { |
| kmem_cache_free(ufs_inode_cachep, UFS_I(inode)); |
| } |
| |
| static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) |
| { |
| struct ufs_inode_info *ei = (struct ufs_inode_info *) foo; |
| |
| if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == |
| SLAB_CTOR_CONSTRUCTOR) |
| inode_init_once(&ei->vfs_inode); |
| } |
| |
| static int init_inodecache(void) |
| { |
| ufs_inode_cachep = kmem_cache_create("ufs_inode_cache", |
| sizeof(struct ufs_inode_info), |
| 0, SLAB_HWCACHE_ALIGN, |
| init_once, NULL); |
| if (ufs_inode_cachep == NULL) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| static void destroy_inodecache(void) |
| { |
| if (kmem_cache_destroy(ufs_inode_cachep)) |
| printk(KERN_INFO "ufs_inode_cache: not all structures were freed\n"); |
| } |
| |
| static struct super_operations ufs_super_ops = { |
| alloc_inode: ufs_alloc_inode, |
| destroy_inode: ufs_destroy_inode, |
| read_inode: ufs_read_inode, |
| write_inode: ufs_write_inode, |
| delete_inode: ufs_delete_inode, |
| put_super: ufs_put_super, |
| write_super: ufs_write_super, |
| statfs: ufs_statfs, |
| remount_fs: ufs_remount, |
| }; |
| |
| static struct super_block *ufs_get_sb(struct file_system_type *fs_type, |
| int flags, char *dev_name, void *data) |
| { |
| return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super); |
| } |
| |
| static struct file_system_type ufs_fs_type = { |
| owner: THIS_MODULE, |
| name: "ufs", |
| get_sb: ufs_get_sb, |
| fs_flags: FS_REQUIRES_DEV, |
| }; |
| |
| static int __init init_ufs_fs(void) |
| { |
| int err = init_inodecache(); |
| if (err) |
| goto out1; |
| err = register_filesystem(&ufs_fs_type); |
| if (err) |
| goto out; |
| return 0; |
| out: |
| destroy_inodecache(); |
| out1: |
| return err; |
| } |
| |
| static void __exit exit_ufs_fs(void) |
| { |
| unregister_filesystem(&ufs_fs_type); |
| destroy_inodecache(); |
| } |
| |
| EXPORT_NO_SYMBOLS; |
| |
| module_init(init_ufs_fs) |
| module_exit(exit_ufs_fs) |
| MODULE_LICENSE("GPL"); |