*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pagemap.h>
#include <linux/fs.h>
-#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/vfs.h>
#include <linux/nls.h>
#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 inode *hfsplus_iget(struct super_block *sb, unsigned long ino)
{
struct hfs_find_data fd;
struct hfsplus_vh *vhdr;
- int err;
+ struct inode *inode;
+ long err = -EIO;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
- 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);
+ mutex_init(&HFSPLUS_I(inode).extents_lock);
HFSPLUS_I(inode).flags = 0;
HFSPLUS_I(inode).rsrc_inode = NULL;
atomic_set(&HFSPLUS_I(inode).opencnt, 0);
hfs_find_exit(&fd);
if (err)
goto bad_inode;
- return;
+ goto done;
}
vhdr = HFSPLUS_SB(inode->i_sb).s_vhdr;
switch(inode->i_ino) {
goto bad_inode;
}
- return;
+done:
+ unlock_new_inode(inode);
+ return inode;
- bad_inode:
- make_bad_inode(inode);
+bad_inode:
+ iget_failed(inode);
+ return ERR_PTR(err);
}
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)
+static int hfsplus_sync_fs(struct super_block *sb, int wait)
{
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
dprint(DBG_SUPER, "hfsplus_write_super\n");
+
+ lock_super(sb);
sb->s_dirt = 0;
- if (sb->s_flags & MS_RDONLY)
- /* warn? */
- return;
vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks);
vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc);
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) {
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;
}
+ unlock_super(sb);
+ return 0;
+}
+
+static void hfsplus_write_super(struct super_block *sb)
+{
+ if (!(sb->s_flags & MS_RDONLY))
+ hfsplus_sync_fs(sb, 1);
+ else
+ sb->s_dirt = 0;
}
static void hfsplus_put_super(struct super_block *sb)
dprint(DBG_SUPER, "hfsplus_put_super\n");
if (!sb->s_fs_info)
return;
+
+ lock_kernel();
+
+ if (sb->s_dirt)
+ hfsplus_write_super(sb);
if (!(sb->s_flags & MS_RDONLY) && HFSPLUS_SB(sb).s_vhdr) {
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
iput(HFSPLUS_SB(sb).alloc_file);
iput(HFSPLUS_SB(sb).hidden_dir);
brelse(HFSPLUS_SB(sb).s_vhbh);
- if (HFSPLUS_SB(sb).nls)
- unload_nls(HFSPLUS_SB(sb).nls);
+ unload_nls(HFSPLUS_SB(sb).nls);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
+
+ unlock_kernel();
}
-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;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+
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;
buf->f_bavail = buf->f_bfree;
buf->f_files = 0xFFFFFFFF;
buf->f_ffree = 0xFFFFFFFF - HFSPLUS_SB(sb).next_cnid;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = HFSPLUS_MAX_STRLEN;
return 0;
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("HFS+-fs: Filesystem is marked journaled, leaving read-only.\n");
+ printk(KERN_WARNING "hfs: filesystem is marked journaled, leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
}
return 0;
}
-static struct super_operations hfsplus_sops = {
+static const struct super_operations hfsplus_sops = {
.alloc_inode = hfsplus_alloc_inode,
.destroy_inode = hfsplus_destroy_inode,
- .read_inode = hfsplus_read_inode,
.write_inode = hfsplus_write_inode,
.clear_inode = hfsplus_clear_inode,
.put_super = hfsplus_put_super,
.write_super = hfsplus_write_super,
+ .sync_fs = hfsplus_sync_fs,
.statfs = hfsplus_statfs,
.remount_fs = hfsplus_remount,
.show_options = hfsplus_show_options,
struct hfsplus_sb_info *sbi;
hfsplus_cat_entry entry;
struct hfs_find_data fd;
- struct inode *root;
+ struct inode *root, *inode;
struct qstr str;
struct nls_table *nls = NULL;
int err = -EINVAL;
- sbi = kmalloc(sizeof(struct hfsplus_sb_info), GFP_KERNEL);
+ sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
- memset(sbi, 0, sizeof(HFSPLUS_SB(sb)));
sb->s_fs_info = sbi;
INIT_HLIST_HEAD(&sbi->rsrc_inodes);
hfsplus_fill_defaults(sbi);
if (!hfsplus_parse_options(data, sbi)) {
- if (!silent)
- printk("HFS+-fs: unable to parse mount options\n");
+ printk(KERN_ERR "hfs: unable to parse mount options\n");
err = -EINVAL;
goto cleanup;
}
/* 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;
}
/* 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);
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)) {
- if (!silent)
- printk("HFS+-fs: write access to a jounaled filesystem is not supported, "
- "use the force option at your own risk, mounting read-only.\n");
+ } else if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) && !(sb->s_flags & MS_RDONLY)) {
+ printk(KERN_WARNING "hfs: write access to a journaled 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");
+ inode = hfsplus_iget(sb, HFSPLUS_ALLOC_CNID);
+ if (IS_ERR(inode)) {
+ printk(KERN_ERR "hfs: failed to load allocation file\n");
+ err = PTR_ERR(inode);
goto cleanup;
}
+ HFSPLUS_SB(sb).alloc_file = inode;
/* Load the root directory */
- root = iget(sb, HFSPLUS_ROOT_CNID);
+ root = hfsplus_iget(sb, HFSPLUS_ROOT_CNID);
+ if (IS_ERR(root)) {
+ printk(KERN_ERR "hfs: failed to load root directory\n");
+ err = PTR_ERR(root);
+ goto cleanup;
+ }
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
- if (!silent)
- printk("HFS+-fs: failed to load root directory\n");
iput(root);
+ err = -ENOMEM;
goto cleanup;
}
+ sb->s_root->d_op = &hfsplus_dentry_operations;
str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1;
str.name = HFSP_HIDDENDIR_NAME;
hfs_find_exit(&fd);
if (entry.type != cpu_to_be16(HFSPLUS_FOLDER))
goto cleanup;
- HFSPLUS_SB(sb).hidden_dir = iget(sb, be32_to_cpu(entry.folder.id));
- if (!HFSPLUS_SB(sb).hidden_dir)
+ inode = hfsplus_iget(sb, be32_to_cpu(entry.folder.id));
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
goto cleanup;
+ }
+ HFSPLUS_SB(sb).hidden_dir = inode;
} else
hfs_find_exit(&fd);
*/
vhdr->last_mount_vers = cpu_to_be32(HFSP_MOUNT_VERSION);
vhdr->modify_date = hfsp_now2mt();
- vhdr->write_count = cpu_to_be32(be32_to_cpu(vhdr->write_count) + 1);
+ be32_add_cpu(&vhdr->write_count, 1);
vhdr->attributes &= cpu_to_be32(~HFSPLUS_VOL_UNMNT);
vhdr->attributes |= cpu_to_be32(HFSPLUS_VOL_INCNSTNT);
mark_buffer_dirty(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);
cleanup:
hfsplus_put_super(sb);
- if (nls)
- unload_nls(nls);
+ unload_nls(nls);
return err;
}
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;
}
#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 = {
.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 hfsplus_inode_info *i = p;
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == SLAB_CTOR_CONSTRUCTOR)
- inode_init_once(&i->vfs_inode);
+ inode_init_once(&i->vfs_inode);
}
static int __init init_hfsplus_fs(void)
hfsplus_inode_cachep = kmem_cache_create("hfsplus_icache",
HFSPLUS_INODE_SIZE, 0, SLAB_HWCACHE_ALIGN,
- hfsplus_init_once, NULL);
+ hfsplus_init_once);
if (!hfsplus_inode_cachep)
return -ENOMEM;
err = register_filesystem(&hfsplus_fs_type);
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)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff