From 7fb7998b599a2e1f3744fbd34a3e7145da841ed1 Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Mon, 26 Jun 2023 12:23:36 +0200 Subject: ovl: move all parameter handling into params.{c,h} While initially I thought that we couldn't move all new mount api handling into params.{c,h} it turns out it is possible. So this just moves a good chunk of code out of super.c and into params.{c,h}. Signed-off-by: Christian Brauner Signed-off-by: Amir Goldstein --- fs/overlayfs/params.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 fs/overlayfs/params.h (limited to 'fs/overlayfs/params.h') diff --git a/fs/overlayfs/params.h b/fs/overlayfs/params.h new file mode 100644 index 000000000000..8750da68ab2a --- /dev/null +++ b/fs/overlayfs/params.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include + +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; +}; + +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); -- cgit v1.2.3