44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#include <linux/fs_context.h>
|
|
#include <linux/fs_parser.h>
|
|
|
|
struct ovl_fs;
|
|
struct ovl_config;
|
|
|
|
extern const struct fs_parameter_spec ovl_parameter_spec[];
|
|
extern const struct constant_table ovl_parameter_redirect_dir[];
|
|
|
|
/* The set of options that user requested explicitly via mount options */
|
|
struct ovl_opt_set {
|
|
bool metacopy;
|
|
bool redirect;
|
|
bool nfs_export;
|
|
bool index;
|
|
};
|
|
|
|
#define OVL_MAX_STACK 500
|
|
|
|
struct ovl_fs_context_layer {
|
|
char *name;
|
|
struct path path;
|
|
};
|
|
|
|
struct ovl_fs_context {
|
|
struct path upper;
|
|
struct path work;
|
|
size_t capacity;
|
|
size_t nr; /* includes nr_data */
|
|
size_t nr_data;
|
|
struct ovl_opt_set set;
|
|
struct ovl_fs_context_layer *lower;
|
|
char *lowerdir_all; /* user provided lowerdir string */
|
|
};
|
|
|
|
int ovl_init_fs_context(struct fs_context *fc);
|
|
void ovl_free_fs(struct ovl_fs *ofs);
|
|
int ovl_fs_params_verify(const struct ovl_fs_context *ctx,
|
|
struct ovl_config *config);
|
|
int ovl_show_options(struct seq_file *m, struct dentry *dentry);
|
|
const char *ovl_xino_mode(struct ovl_config *config);
|