fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / fs / binfmt_misc.c

diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 6a7b730..c2e0825 100644 (file)
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -55,6 +55,7 @@ typedef struct {
 } Node;
 
 static DEFINE_RWLOCK(entries_lock);
+static struct file_system_type bm_fs_type;
 static struct vfsmount *bm_mnt;
 static int entry_count;
 
@@ -203,7 +204,6 @@ static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                goto _error;
 
        if (files) {
-               steal_locks(files);
                put_files_struct(files);
                files = NULL;
        }
@@ -215,10 +215,8 @@ _error:
        bprm->interp_flags = 0;
        bprm->interp_data = 0;
 _unshare:
-       if (files) {
-               put_files_struct(current->files);
-               current->files = files;
-       }
+       if (files)
+               reset_files_struct(current, files);
        goto _ret;
 }
 
@@ -313,7 +311,7 @@ static Node *create_entry(const char __user *buffer, size_t count)
 
        err = -ENOMEM;
        memsize = sizeof(Node) + count + 8;
-       e = (Node *) kmalloc(memsize, GFP_USER);
+       e = kmalloc(memsize, GFP_USER);
        if (!e)
                goto out;
 
@@ -507,7 +505,6 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
                inode->i_mode = mode;
                inode->i_uid = 0;
                inode->i_gid = 0;
-               inode->i_blksize = PAGE_CACHE_SIZE;
                inode->i_blocks = 0;
                inode->i_atime = inode->i_mtime = inode->i_ctime =
                        current_fs_time(inode->i_sb);
@@ -517,7 +514,7 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
 
 static void bm_clear_inode(struct inode *inode)
 {
-       kfree(inode->u.generic_ip);
+       kfree(inode->i_private);
 }
 
 static void kill_node(Node *e)
@@ -545,7 +542,7 @@ static void kill_node(Node *e)
 static ssize_t
 bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos)
 {
-       Node *e = file->f_dentry->d_inode->u.generic_ip;
+       Node *e = file->f_path.dentry->d_inode->i_private;
        loff_t pos = *ppos;
        ssize_t res;
        char *page;
@@ -579,7 +576,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
                                size_t count, loff_t *ppos)
 {
        struct dentry *root;
-       Node *e = file->f_dentry->d_inode->u.generic_ip;
+       Node *e = file->f_path.dentry->d_inode->i_private;
        int res = parse_command(buffer, count);
 
        switch (res) {
@@ -587,7 +584,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
                        break;
                case 2: set_bit(Enabled, &e->flags);
                        break;
-               case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
+               case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
                        mutex_lock(&root->d_inode->i_mutex);
 
                        kill_node(e);
@@ -600,7 +597,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
        return count;
 }
 
-static struct file_operations bm_entry_operations = {
+static const struct file_operations bm_entry_operations = {
        .read           = bm_entry_read,
        .write          = bm_entry_write,
 };
@@ -613,7 +610,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
        Node *e;
        struct inode *inode;
        struct dentry *root, *dentry;
-       struct super_block *sb = file->f_vfsmnt->mnt_sb;
+       struct super_block *sb = file->f_path.mnt->mnt_sb;
        int err = 0;
 
        e = create_entry(buffer, count);
@@ -638,7 +635,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
        if (!inode)
                goto out2;
 
-       err = simple_pin_fs("binfmt_misc", &bm_mnt, &entry_count);
+       err = simple_pin_fs(&bm_fs_type, &bm_mnt, &entry_count);
        if (err) {
                iput(inode);
                inode = NULL;
@@ -646,7 +643,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
        }
 
        e->dentry = dget(dentry);
-       inode->u.generic_ip = e;
+       inode->i_private = e;
        inode->i_fop = &bm_entry_operations;
 
        d_instantiate(dentry, inode);
@@ -668,7 +665,7 @@ out:
        return count;
 }
 
-static struct file_operations bm_register_operations = {
+static const struct file_operations bm_register_operations = {
        .write          = bm_register_write,
 };
 
@@ -702,7 +699,7 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
        switch (res) {
                case 1: enabled = 0; break;
                case 2: enabled = 1; break;
-               case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
+               case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
                        mutex_lock(&root->d_inode->i_mutex);
 
                        while (!list_empty(&entries))
@@ -715,7 +712,7 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
        return count;
 }
 
-static struct file_operations bm_status_operations = {
+static const struct file_operations bm_status_operations = {
        .read           = bm_status_read,
        .write          = bm_status_write,
 };
@@ -740,10 +737,10 @@ static int bm_fill_super(struct super_block * sb, void * data, int silent)
        return err;
 }
 
-static struct super_block *bm_get_sb(struct file_system_type *fs_type,
-       int flags, const char *dev_name, void *data)
+static int bm_get_sb(struct file_system_type *fs_type,
+       int flags, const char *dev_name, void *data, struct vfsmount *mnt)
 {
-       return get_sb_single(fs_type, flags, data, bm_fill_super);
+       return get_sb_single(fs_type, flags, data, bm_fill_super, mnt);
 }
 
 static struct linux_binfmt misc_format = {