X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fhfsplus%2Fsuper.c;h=0f513c6bf8434adfc311c57e6829e9b3c23663e6;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=d55ad67b8e4238e3625f2139b78b353858337657;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index d55ad67b8..0f513c6bf 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -7,14 +7,12 @@ * */ -#include #include #include #include #include #include #include -#include #include #include @@ -23,33 +21,17 @@ static void hfsplus_destroy_inode(struct inode *inode); #include "hfsplus_fs.h" -void hfsplus_inode_check(struct super_block *sb) -{ -#if 0 - u32 cnt = atomic_read(&HFSPLUS_SB(sb).inode_cnt); - u32 last_cnt = HFSPLUS_SB(sb).last_inode_cnt; - - if (cnt <= (last_cnt / 2) || - cnt >= (last_cnt * 2)) { - HFSPLUS_SB(sb).last_inode_cnt = cnt; - printk("inode_check: %u,%u,%u\n", cnt, last_cnt, - HFSPLUS_SB(sb).cat_tree ? HFSPLUS_SB(sb).cat_tree->node_hash_cnt : 0); - } -#endif -} - static void hfsplus_read_inode(struct inode *inode) { struct hfs_find_data fd; struct hfsplus_vh *vhdr; int err; - atomic_inc(&HFSPLUS_SB(inode->i_sb).inode_cnt); - hfsplus_inode_check(inode->i_sb); INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list); init_MUTEX(&HFSPLUS_I(inode).extents_lock); HFSPLUS_I(inode).flags = 0; HFSPLUS_I(inode).rsrc_inode = NULL; + atomic_set(&HFSPLUS_I(inode).opencnt, 0); if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID) { read_inode: @@ -155,12 +137,10 @@ static int hfsplus_write_inode(struct inode *inode, int unused) static void hfsplus_clear_inode(struct inode *inode) { dprint(DBG_INODE, "hfsplus_clear_inode: %lu\n", inode->i_ino); - atomic_dec(&HFSPLUS_SB(inode->i_sb).inode_cnt); if (HFSPLUS_IS_RSRC(inode)) { HFSPLUS_I(HFSPLUS_I(inode).rsrc_inode).rsrc_inode = NULL; iput(HFSPLUS_I(inode).rsrc_inode); } - hfsplus_inode_check(inode->i_sb); } static void hfsplus_write_super(struct super_block *sb) @@ -188,7 +168,7 @@ static void hfsplus_write_super(struct super_block *sb) block = HFSPLUS_SB(sb).blockoffset; block += (HFSPLUS_SB(sb).sect_count - 2) >> (sb->s_blocksize_bits - 9); offset = ((HFSPLUS_SB(sb).sect_count - 2) << 9) & (sb->s_blocksize - 1); - printk("backup: %u,%u,%u,%u\n", HFSPLUS_SB(sb).blockoffset, + printk(KERN_DEBUG "hfs: backup: %u,%u,%u,%u\n", HFSPLUS_SB(sb).blockoffset, HFSPLUS_SB(sb).sect_count, block, offset); bh = sb_bread(sb, block); if (bh) { @@ -198,7 +178,7 @@ static void hfsplus_write_super(struct super_block *sb) mark_buffer_dirty(bh); brelse(bh); } else - printk("backup not found!\n"); + printk(KERN_WARNING "hfs: backup not found!\n"); } } HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP; @@ -217,8 +197,7 @@ static void hfsplus_put_super(struct super_block *sb) vhdr->attributes |= cpu_to_be32(HFSPLUS_VOL_UNMNT); vhdr->attributes &= cpu_to_be32(~HFSPLUS_VOL_INCNSTNT); mark_buffer_dirty(HFSPLUS_SB(sb).s_vhbh); - ll_rw_block(WRITE, 1, &HFSPLUS_SB(sb).s_vhbh); - wait_on_buffer(HFSPLUS_SB(sb).s_vhbh); + sync_dirty_buffer(HFSPLUS_SB(sb).s_vhbh); } hfs_btree_close(HFSPLUS_SB(sb).cat_tree); @@ -232,8 +211,10 @@ static void hfsplus_put_super(struct super_block *sb) sb->s_fs_info = NULL; } -static int hfsplus_statfs(struct super_block *sb, struct kstatfs *buf) +static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf) { + struct super_block *sb = dentry->d_sb; + buf->f_type = HFSPLUS_SUPER_MAGIC; buf->f_bsize = sb->s_blocksize; buf->f_blocks = HFSPLUS_SB(sb).total_blocks << HFSPLUS_SB(sb).fs_shift; @@ -252,14 +233,26 @@ static int hfsplus_remount(struct super_block *sb, int *flags, char *data) return 0; if (!(*flags & MS_RDONLY)) { struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr; + struct hfsplus_sb_info sbi; + + memset(&sbi, 0, sizeof(struct hfsplus_sb_info)); + sbi.nls = HFSPLUS_SB(sb).nls; + if (!hfsplus_parse_options(data, &sbi)) + return -EINVAL; if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) { - printk("HFS+-fs warning: Filesystem was not cleanly unmounted, " + printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, " "running fsck.hfsplus is recommended. leaving read-only.\n"); sb->s_flags |= MS_RDONLY; *flags |= MS_RDONLY; + } else if (sbi.flags & HFSPLUS_SB_FORCE) { + /* nothing */ } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) { - printk("HFS+-fs: Filesystem is marked locked, leaving read-only.\n"); + printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n"); + sb->s_flags |= MS_RDONLY; + *flags |= MS_RDONLY; + } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) { + printk(KERN_WARNING "hfs: filesystem is marked journaled, leaving read-only.\n"); sb->s_flags |= MS_RDONLY; *flags |= MS_RDONLY; } @@ -277,6 +270,7 @@ static struct super_operations hfsplus_sops = { .write_super = hfsplus_write_super, .statfs = hfsplus_statfs, .remount_fs = hfsplus_remount, + .show_options = hfsplus_show_options, }; static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) @@ -297,10 +291,9 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) memset(sbi, 0, sizeof(HFSPLUS_SB(sb))); sb->s_fs_info = sbi; INIT_HLIST_HEAD(&sbi->rsrc_inodes); - fill_defaults(sbi); - if (!parse_options(data, sbi)) { - if (!silent) - printk("HFS+-fs: unable to parse mount options\n"); + hfsplus_fill_defaults(sbi); + if (!hfsplus_parse_options(data, sbi)) { + printk(KERN_ERR "hfs: unable to parse mount options\n"); err = -EINVAL; goto cleanup; } @@ -308,8 +301,8 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) /* temporarily use utf8 to correctly find the hidden dir below */ nls = sbi->nls; sbi->nls = load_nls("utf8"); - if (!nls) { - printk("HFS+: unable to load nls for utf8\n"); + if (!sbi->nls) { + printk(KERN_ERR "hfs: unable to load nls for utf8\n"); err = -EINVAL; goto cleanup; } @@ -317,17 +310,17 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) /* Grab the volume header */ if (hfsplus_read_wrapper(sb)) { if (!silent) - printk("HFS+-fs: unable to find HFS+ superblock\n"); + printk(KERN_WARNING "hfs: unable to find HFS+ superblock\n"); err = -EINVAL; goto cleanup; } vhdr = HFSPLUS_SB(sb).s_vhdr; /* Copy parts of the volume header into the superblock */ - sb->s_magic = be16_to_cpu(vhdr->signature); - if (be16_to_cpu(vhdr->version) != HFSPLUS_CURRENT_VERSION) { - if (!silent) - printk("HFS+-fs: wrong filesystem version\n"); + sb->s_magic = HFSPLUS_VOLHEAD_SIG; + if (be16_to_cpu(vhdr->version) < HFSPLUS_MIN_VERSION || + be16_to_cpu(vhdr->version) > HFSPLUS_CURRENT_VERSION) { + printk(KERN_ERR "hfs: wrong filesystem version\n"); goto cleanup; } HFSPLUS_SB(sb).total_blocks = be32_to_cpu(vhdr->total_blocks); @@ -348,34 +341,36 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) sb->s_maxbytes = MAX_LFS_FILESIZE; if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) { - if (!silent) - printk("HFS+-fs warning: Filesystem was not cleanly unmounted, " - "running fsck.hfsplus is recommended. mounting read-only.\n"); + printk(KERN_WARNING "hfs: Filesystem was not cleanly unmounted, " + "running fsck.hfsplus is recommended. mounting read-only.\n"); sb->s_flags |= MS_RDONLY; + } else if (sbi->flags & HFSPLUS_SB_FORCE) { + /* nothing */ } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) { - if (!silent) - printk("HFS+-fs: Filesystem is marked locked, mounting read-only.\n"); + printk(KERN_WARNING "hfs: Filesystem is marked locked, mounting read-only.\n"); + sb->s_flags |= MS_RDONLY; + } else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) { + printk(KERN_WARNING "hfs: write access to a jounaled filesystem is not supported, " + "use the force option at your own risk, mounting read-only.\n"); sb->s_flags |= MS_RDONLY; } + sbi->flags &= ~HFSPLUS_SB_FORCE; /* Load metadata objects (B*Trees) */ HFSPLUS_SB(sb).ext_tree = hfs_btree_open(sb, HFSPLUS_EXT_CNID); if (!HFSPLUS_SB(sb).ext_tree) { - if (!silent) - printk("HFS+-fs: failed to load extents file\n"); + printk(KERN_ERR "hfs: failed to load extents file\n"); goto cleanup; } HFSPLUS_SB(sb).cat_tree = hfs_btree_open(sb, HFSPLUS_CAT_CNID); if (!HFSPLUS_SB(sb).cat_tree) { - if (!silent) - printk("HFS+-fs: failed to load catalog file\n"); + printk(KERN_ERR "hfs: failed to load catalog file\n"); goto cleanup; } HFSPLUS_SB(sb).alloc_file = iget(sb, HFSPLUS_ALLOC_CNID); if (!HFSPLUS_SB(sb).alloc_file) { - if (!silent) - printk("HFS+-fs: failed to load allocation file\n"); + printk(KERN_ERR "hfs: failed to load allocation file\n"); goto cleanup; } @@ -383,8 +378,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) root = iget(sb, HFSPLUS_ROOT_CNID); sb->s_root = d_alloc_root(root); if (!sb->s_root) { - if (!silent) - printk("HFS+-fs: failed to load root directory\n"); + printk(KERN_ERR "hfs: failed to load root directory\n"); iput(root); goto cleanup; } @@ -415,11 +409,10 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent) vhdr->attributes &= cpu_to_be32(~HFSPLUS_VOL_UNMNT); vhdr->attributes |= cpu_to_be32(HFSPLUS_VOL_INCNSTNT); mark_buffer_dirty(HFSPLUS_SB(sb).s_vhbh); - ll_rw_block(WRITE, 1, &HFSPLUS_SB(sb).s_vhbh); - wait_on_buffer(HFSPLUS_SB(sb).s_vhbh); + sync_dirty_buffer(HFSPLUS_SB(sb).s_vhbh); if (!HFSPLUS_SB(sb).hidden_dir) { - printk("HFS+: create hidden dir...\n"); + printk(KERN_DEBUG "hfs: create hidden dir...\n"); HFSPLUS_SB(sb).hidden_dir = hfsplus_new_inode(sb, S_IFDIR); hfsplus_create_cat(HFSPLUS_SB(sb).hidden_dir->i_ino, sb->s_root->d_inode, &str, HFSPLUS_SB(sb).hidden_dir); @@ -441,13 +434,13 @@ MODULE_AUTHOR("Brad Boyer"); MODULE_DESCRIPTION("Extended Macintosh Filesystem"); MODULE_LICENSE("GPL"); -static kmem_cache_t *hfsplus_inode_cachep; +static struct kmem_cache *hfsplus_inode_cachep; static struct inode *hfsplus_alloc_inode(struct super_block *sb) { struct hfsplus_inode_info *i; - i = kmem_cache_alloc(hfsplus_inode_cachep, SLAB_KERNEL); + i = kmem_cache_alloc(hfsplus_inode_cachep, GFP_KERNEL); return i ? &i->vfs_inode : NULL; } @@ -458,10 +451,12 @@ static void hfsplus_destroy_inode(struct inode *inode) #define HFSPLUS_INODE_SIZE sizeof(struct hfsplus_inode_info) -static struct super_block *hfsplus_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int hfsplus_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, + struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super, + mnt); } static struct file_system_type hfsplus_fs_type = { @@ -472,7 +467,7 @@ static struct file_system_type hfsplus_fs_type = { .fs_flags = FS_REQUIRES_DEV, }; -static void hfsplus_init_once(void *p, kmem_cache_t *cachep, unsigned long flags) +static void hfsplus_init_once(void *p, struct kmem_cache *cachep, unsigned long flags) { struct hfsplus_inode_info *i = p; @@ -498,8 +493,7 @@ static int __init init_hfsplus_fs(void) static void __exit exit_hfsplus_fs(void) { unregister_filesystem(&hfsplus_fs_type); - if (kmem_cache_destroy(hfsplus_inode_cachep)) - printk(KERN_INFO "hfsplus_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(hfsplus_inode_cachep); } module_init(init_hfsplus_fs)