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-rw-r--r--include/linux/debugfs.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index fcafe2d389f9..a63e6ea3321c 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -19,9 +19,11 @@
#include <linux/seq_file.h>
#include <linux/types.h>
+#include <linux/compiler.h>
struct device;
struct file_operations;
+struct srcu_struct;
struct debugfs_blob_wrapper {
void *data;
@@ -41,6 +43,8 @@ struct debugfs_regset32 {
extern struct dentry *arch_debugfs_dir;
+extern struct srcu_struct debugfs_srcu;
+
#if defined(CONFIG_DEBUG_FS)
struct dentry *debugfs_create_file(const char *name, umode_t mode,
@@ -65,6 +69,11 @@ struct dentry *debugfs_create_automount(const char *name,
void debugfs_remove(struct dentry *dentry);
void debugfs_remove_recursive(struct dentry *dentry);
+int debugfs_use_file_start(const struct dentry *dentry, int *srcu_idx)
+ __acquires(&debugfs_srcu);
+
+void debugfs_use_file_finish(int srcu_idx) __releases(&debugfs_srcu);
+
struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
struct dentry *new_dir, const char *new_name);
@@ -173,6 +182,17 @@ static inline void debugfs_remove(struct dentry *dentry)
static inline void debugfs_remove_recursive(struct dentry *dentry)
{ }
+static inline int debugfs_use_file_start(const struct dentry *dentry,
+ int *srcu_idx)
+ __acquires(&debugfs_srcu)
+{
+ return 0;
+}
+
+static inline void debugfs_use_file_finish(int srcu_idx)
+ __releases(&debugfs_srcu)
+{ }
+
static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
struct dentry *new_dir, char *new_name)
{