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-rw-r--r--include/linux/fs_struct.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 78a05bfcd8e..eca3d520213 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -21,4 +21,31 @@ extern void free_fs_struct(struct fs_struct *);
extern void daemonize_fs_struct(void);
extern int unshare_fs_struct(void);
+static inline void get_fs_root(struct fs_struct *fs, struct path *root)
+{
+ read_lock(&fs->lock);
+ *root = fs->root;
+ path_get(root);
+ read_unlock(&fs->lock);
+}
+
+static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
+{
+ read_lock(&fs->lock);
+ *pwd = fs->pwd;
+ path_get(pwd);
+ read_unlock(&fs->lock);
+}
+
+static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root,
+ struct path *pwd)
+{
+ read_lock(&fs->lock);
+ *root = fs->root;
+ path_get(root);
+ *pwd = fs->pwd;
+ path_get(pwd);
+ read_unlock(&fs->lock);
+}
+
#endif /* _LINUX_FS_STRUCT_H */