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/* 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);
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