For vfs_get_keyed_super users.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
static int nfsd_fs_get_tree(struct fs_context *fc)
{
- fc->s_fs_info = get_net(fc->net_ns);
- return vfs_get_super(fc, vfs_get_keyed_super, nfsd_fill_super);
+ return get_tree_keyed(fc, nfsd_fill_super, get_net(fc->net_ns));
}
static void nfsd_fs_free_fc(struct fs_context *fc)
{
struct proc_fs_context *ctx = fc->fs_private;
- fc->s_fs_info = ctx->pid_ns;
- return vfs_get_super(fc, vfs_get_keyed_super, proc_fill_super);
+ return get_tree_keyed(fc, proc_fill_super, ctx->pid_ns);
}
static void proc_fs_context_free(struct fs_context *fc)
}
EXPORT_SYMBOL(get_tree_single);
+int get_tree_keyed(struct fs_context *fc,
+ int (*fill_super)(struct super_block *sb,
+ struct fs_context *fc),
+ void *key)
+{
+ fc->s_fs_info = key;
+ return vfs_get_super(fc, vfs_get_keyed_super, fill_super);
+}
+EXPORT_SYMBOL(get_tree_keyed);
+
#ifdef CONFIG_BLOCK
static int set_bdev_super(struct super_block *s, void *data)
{
extern void put_fs_context(struct fs_context *fc);
/*
- * sget() wrapper to be called from the ->get_tree() op.
+ * sget() wrappers to be called from the ->get_tree() op.
*/
enum vfs_get_super_keying {
vfs_get_single_super, /* Only one such superblock may exist */
enum vfs_get_super_keying keying,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc));
+
extern int get_tree_nodev(struct fs_context *fc,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc));
extern int get_tree_single(struct fs_context *fc,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc));
+extern int get_tree_keyed(struct fs_context *fc,
+ int (*fill_super)(struct super_block *sb,
+ struct fs_context *fc),
+ void *key);
extern const struct file_operations fscontext_fops;
{
struct mqueue_fs_context *ctx = fc->fs_private;
- fc->s_fs_info = ctx->ipc_ns;
- return vfs_get_super(fc, vfs_get_keyed_super, mqueue_fill_super);
+ return get_tree_keyed(fc, mqueue_fill_super, ctx->ipc_ns);
}
static void mqueue_fs_context_free(struct fs_context *fc)
static int rpc_fs_get_tree(struct fs_context *fc)
{
- fc->s_fs_info = get_net(fc->net_ns);
- return vfs_get_super(fc, vfs_get_keyed_super, rpc_fill_super);
+ return get_tree_keyed(fc, rpc_fill_super, get_net(fc->net_ns));
}
static void rpc_fs_free_fc(struct fs_context *fc)