return &bi->vfs_inode;
}
-static void
-befs_destroy_inode(struct inode *inode)
+static void befs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
}
+static void befs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, befs_i_callback);
+}
+
static void init_once(void *foo)
{
struct befs_inode_info *bi = (struct befs_inode_info *) foo;
inode->i_size = 0;
inode->i_blocks = befs_sb->block_size / VFS_BLOCK_SIZE;
strncpy(befs_ino->i_data.symlink, raw_inode->data.symlink,
- BEFS_SYMLINK_LEN);
+ BEFS_SYMLINK_LEN - 1);
+ befs_ino->i_data.symlink[BEFS_SYMLINK_LEN - 1] = '\0';
} else {
int num_blks;
befs_ino->i_data.ds =
- fsds_to_cpu(sb, raw_inode->data.datastream);
+ fsds_to_cpu(sb, &raw_inode->data.datastream);
num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);
inode->i_blocks =
init_once);
if (befs_inode_cachep == NULL) {
printk(KERN_ERR "befs_init_inodecache: "
- "Couldn't initalize inode slabcache\n");
+ "Couldn't initialize inode slabcache\n");
return -ENOMEM;
}
befs_data_stream *data = &befs_ino->i_data.ds;
befs_off_t len = data->size;
- befs_debug(sb, "Follow long symlink");
-
- link = kmalloc(len, GFP_NOFS);
- if (!link) {
- link = ERR_PTR(-ENOMEM);
- } else if (befs_read_lsymlink(sb, data, link, len) != len) {
- kfree(link);
- befs_error(sb, "Failed to read entire long symlink");
+ if (len == 0) {
+ befs_error(sb, "Long symlink with illegal length");
link = ERR_PTR(-EIO);
+ } else {
+ befs_debug(sb, "Follow long symlink");
+
+ link = kmalloc(len, GFP_NOFS);
+ if (!link) {
+ link = ERR_PTR(-ENOMEM);
+ } else if (befs_read_lsymlink(sb, data, link, len) != len) {
+ kfree(link);
+ befs_error(sb, "Failed to read entire long symlink");
+ link = ERR_PTR(-EIO);
+ } else {
+ link[len - 1] = '\0';
+ }
}
} else {
link = befs_ino->i_data.symlink;
{
struct nls_table *nls = BEFS_SB(sb)->nls;
int i, o;
- wchar_t uni;
+ unicode_t uni;
int unilen, utflen;
char *result;
/* The utf8->nls conversion won't make the final nls string bigger
for (i = o = 0; i < in_len; i += utflen, o += unilen) {
/* convert from UTF-8 to Unicode */
- utflen = utf8_mbtowc(&uni, &in[i], in_len - i);
- if (utflen < 0) {
+ utflen = utf8_to_utf32(&in[i], in_len - i, &uni);
+ if (utflen < 0)
goto conv_err;
- }
/* convert from Unicode to nls */
+ if (uni > MAX_WCHAR_T)
+ goto conv_err;
unilen = nls->uni2char(uni, &result[o], in_len - o);
- if (unilen < 0) {
+ if (unilen < 0)
goto conv_err;
- }
}
result[o] = '\0';
*out_len = o;
/* convert from nls to unicode */
unilen = nls->char2uni(&in[i], in_len - i, &uni);
- if (unilen < 0) {
+ if (unilen < 0)
goto conv_err;
- }
/* convert from unicode to UTF-8 */
- utflen = utf8_wctomb(&result[o], uni, 3);
- if (utflen <= 0) {
+ utflen = utf32_to_utf8(uni, &result[o], 3);
+ if (utflen <= 0)
goto conv_err;
- }
}
result[o] = '\0';
Opt_uid, Opt_gid, Opt_charset, Opt_debug, Opt_err,
};
-static match_table_t befs_tokens = {
+static const match_table_t befs_tokens = {
{Opt_uid, "uid=%d"},
{Opt_gid, "gid=%d"},
{Opt_charset, "iocharset=%s"},
{
kfree(BEFS_SB(sb)->mount_opts.iocharset);
BEFS_SB(sb)->mount_opts.iocharset = NULL;
-
- if (BEFS_SB(sb)->nls) {
- unload_nls(BEFS_SB(sb)->nls);
- BEFS_SB(sb)->nls = NULL;
- }
-
+ unload_nls(BEFS_SB(sb)->nls);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
- return;
}
/* Allocate private field of the superblock, fill it.
/* account for offset of super block on x86 */
disk_sb = (befs_super_block *) bh->b_data;
- if ((le32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1) ||
- (be32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1)) {
+ if ((disk_sb->magic1 == BEFS_SUPER_MAGIC1_LE) ||
+ (disk_sb->magic1 == BEFS_SUPER_MAGIC1_BE)) {
befs_debug(sb, "Using PPC superblock location");
} else {
befs_debug(sb, "Using x86 superblock location");
sb->s_magic = BEFS_SUPER_MAGIC;
/* Set real blocksize of fs */
sb_set_blocksize(sb, (ulong) befs_sb->block_size);
- sb->s_op = (struct super_operations *) &befs_sops;
+ sb->s_op = &befs_sops;
root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
if (IS_ERR(root)) {
ret = PTR_ERR(root);
brelse(bh);
unacquire_priv_sbp:
+ kfree(befs_sb->mount_opts.iocharset);
kfree(sb->s_fs_info);
unacquire_none:
befs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
befs_debug(sb, "---> befs_statfs()");
buf->f_bavail = buf->f_bfree;
buf->f_files = 0; /* UNKNOWN */
buf->f_ffree = 0; /* UNKNOWN */
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = BEFS_NAME_LEN;
befs_debug(sb, "<--- befs_statfs()");
return 0;
}
-static int
-befs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
+static struct dentry *
+befs_mount(struct file_system_type *fs_type, int flags, const char *dev_name,
+ void *data)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super,
- mnt);
+ return mount_bdev(fs_type, flags, dev_name, data, befs_fill_super);
}
static struct file_system_type befs_fs_type = {
.owner = THIS_MODULE,
.name = "befs",
- .get_sb = befs_get_sb,
+ .mount = befs_mount,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
projects / linux-flexiantxendom0-natty.git / blobdiff