diff options
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 41 |
1 files changed, 9 insertions, 32 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 4142d1a457ff..9402591f12aa 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -70,14 +70,6 @@ enum { OVL_XINO_ON, }; -/* The set of options that user requested explicitly via mount options */ -struct ovl_opt_set { - bool metacopy; - bool redirect; - bool nfs_export; - bool index; -}; - /* * The tuple (fh,uuid) is a universal unique identifier for a copy up origin, * where: @@ -368,30 +360,6 @@ static inline bool ovl_open_flags_need_copy_up(int flags) return ((OPEN_FMODE(flags) & FMODE_WRITE) || (flags & O_TRUNC)); } - -/* params.c */ -#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; -}; - -int ovl_parse_param_upperdir(const char *name, struct fs_context *fc, - bool workdir); -int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc); -void ovl_parse_param_drop_lowerdir(struct ovl_fs_context *ctx); - /* util.c */ int ovl_want_write(struct dentry *dentry); void ovl_drop_write(struct dentry *dentry); @@ -791,3 +759,12 @@ int ovl_set_origin(struct ovl_fs *ofs, struct dentry *lower, /* export.c */ extern const struct export_operations ovl_export_operations; + +/* super.c */ +int ovl_fill_super(struct super_block *sb, struct fs_context *fc); + +/* Will this overlay be forced to mount/remount ro? */ +static inline bool ovl_force_readonly(struct ovl_fs *ofs) +{ + return (!ovl_upper_mnt(ofs) || !ofs->workdir); +} |