1 /* SPDX-License-Identifier: GPL-2.0-only */ 1 /* SPDX-License-Identifier: GPL-2.0-only */
2 2
3 #include <linux/fs_context.h> 3 #include <linux/fs_context.h>
4 #include <linux/fs_parser.h> 4 #include <linux/fs_parser.h>
5 5
6 struct ovl_fs; 6 struct ovl_fs;
7 struct ovl_config; 7 struct ovl_config;
8 8
9 extern const struct fs_parameter_spec ovl_para 9 extern const struct fs_parameter_spec ovl_parameter_spec[];
10 extern const struct constant_table ovl_paramet 10 extern const struct constant_table ovl_parameter_redirect_dir[];
11 11
12 /* The set of options that user requested expl 12 /* The set of options that user requested explicitly via mount options */
13 struct ovl_opt_set { 13 struct ovl_opt_set {
14 bool metacopy; 14 bool metacopy;
15 bool redirect; 15 bool redirect;
16 bool nfs_export; 16 bool nfs_export;
17 bool index; 17 bool index;
18 }; 18 };
19 19
20 #define OVL_MAX_STACK 500 20 #define OVL_MAX_STACK 500
21 21
22 struct ovl_fs_context_layer { 22 struct ovl_fs_context_layer {
23 char *name; 23 char *name;
24 struct path path; 24 struct path path;
25 }; 25 };
26 26
27 struct ovl_fs_context { 27 struct ovl_fs_context {
28 struct path upper; 28 struct path upper;
29 struct path work; 29 struct path work;
30 size_t capacity; 30 size_t capacity;
31 size_t nr; /* includes nr_data */ 31 size_t nr; /* includes nr_data */
32 size_t nr_data; 32 size_t nr_data;
33 struct ovl_opt_set set; 33 struct ovl_opt_set set;
34 struct ovl_fs_context_layer *lower; 34 struct ovl_fs_context_layer *lower;
35 char *lowerdir_all; /* user provided l <<
36 }; 35 };
37 36
38 int ovl_init_fs_context(struct fs_context *fc) 37 int ovl_init_fs_context(struct fs_context *fc);
39 void ovl_free_fs(struct ovl_fs *ofs); 38 void ovl_free_fs(struct ovl_fs *ofs);
40 int ovl_fs_params_verify(const struct ovl_fs_c 39 int ovl_fs_params_verify(const struct ovl_fs_context *ctx,
41 struct ovl_config *co 40 struct ovl_config *config);
42 int ovl_show_options(struct seq_file *m, struc 41 int ovl_show_options(struct seq_file *m, struct dentry *dentry);
43 const char *ovl_xino_mode(struct ovl_config *c 42 const char *ovl_xino_mode(struct ovl_config *config);
44 43
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