struct inode;
struct dentry;
+/*
+ * struct xattr_handler: When @name is set, match attributes with exactly that
+ * name. When @prefix is set instead, match attributes with that prefix and
+ * with a non-empty suffix.
+ */
struct xattr_handler {
+ const char *name;
const char *prefix;
- int flags; /* fs private flags passed back to the handlers */
- size_t (*list)(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int handler_flags);
- int (*get)(struct dentry *dentry, const char *name, void *buffer,
- size_t size, int handler_flags);
- int (*set)(struct dentry *dentry, const char *name, const void *buffer,
- size_t size, int flags, int handler_flags);
+ int flags; /* fs private flags */
+ size_t (*list)(const struct xattr_handler *, struct dentry *dentry,
+ char *list, size_t list_size, const char *name,
+ size_t name_len);
+ int (*get)(const struct xattr_handler *, struct dentry *dentry,
+ const char *name, void *buffer, size_t size);
+ int (*set)(const struct xattr_handler *, struct dentry *dentry,
+ const char *name, const void *buffer, size_t size,
+ int flags);
};
+const char *xattr_full_name(const struct xattr_handler *, const char *);
+
struct xattr {
const char *name;
void *value;
int generic_removexattr(struct dentry *dentry, const char *name);
ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name,
char **xattr_value, size_t size, gfp_t flags);
-int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
- const char *value, size_t size, gfp_t flags);
+
+static inline const char *xattr_prefix(const struct xattr_handler *handler)
+{
+ return handler->prefix ?: handler->name;
+}
struct simple_xattrs {
struct list_head head;