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authorAl Viro <viro@zeniv.linux.org.uk>2018-12-23 16:02:47 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2019-02-28 03:29:27 -0500
commit0b52075ee62301dd150c9f2c3ddd0035ed894cde (patch)
treebb5b54d2fee0e0e37f73635030dc0e25e93c9aa5 /include/linux/fs_context.h
parentcb50b348c71ffa90d7d1b2a494b553b5099bc090 (diff)
introduce cloning of fs_context
new primitive: vfs_dup_fs_context(). Comes with fs_context method (->dup()) for copying the filesystem-specific parts of fs_context, along with LSM one (->fs_context_dup()) for doing the same to LSM parts. [needs better commit message, and change of Author:, anyway] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fs_context.h')
-rw-r--r--include/linux/fs_context.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h
index b1a95db7a111..0db0b645c7b8 100644
--- a/include/linux/fs_context.h
+++ b/include/linux/fs_context.h
@@ -94,6 +94,7 @@ struct fs_context {
struct fs_context_operations {
void (*free)(struct fs_context *fc);
+ int (*dup)(struct fs_context *fc, struct fs_context *src_fc);
int (*parse_param)(struct fs_context *fc, struct fs_parameter *param);
int (*parse_monolithic)(struct fs_context *fc, void *data);
int (*get_tree)(struct fs_context *fc);
@@ -111,6 +112,7 @@ extern struct fs_context *fs_context_for_reconfigure(struct dentry *dentry,
extern struct fs_context *fs_context_for_submount(struct file_system_type *fs_type,
struct dentry *reference);
+extern struct fs_context *vfs_dup_fs_context(struct fs_context *fc);
extern int vfs_parse_fs_param(struct fs_context *fc, struct fs_parameter *param);
extern int vfs_parse_fs_string(struct fs_context *fc, const char *key,
const char *value, size_t v_size);