1 files changed, 26 insertions, 2 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 33873531ffa6..e34967829183 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1658,12 +1658,36 @@ static inline kgid_t kgid_from_mnt(struct user_namespace *mnt_userns,
 	return KGIDT_INIT(from_kgid(mnt_userns, kgid));
 }
 
-static inline kuid_t fsuid_into_mnt(struct user_namespace *mnt_userns)
+/**
+ * mapped_fsuid - return caller's fsuid mapped up into a mnt_userns
+ * @mnt_userns: user namespace of the relevant mount
+ *
+ * Use this helper to initialize a new vfs or filesystem object based on
+ * the caller's fsuid. A common example is initializing the i_uid field of
+ * a newly allocated inode triggered by a creation event such as mkdir or
+ * O_CREAT. Other examples include the allocation of quotas for a specific
+ * user.
+ *
+ * Return: the caller's current fsuid mapped up according to @mnt_userns.
+ */
+static inline kuid_t mapped_fsuid(struct user_namespace *mnt_userns)
 {
 	return kuid_from_mnt(mnt_userns, current_fsuid());
 }
 
-static inline kgid_t fsgid_into_mnt(struct user_namespace *mnt_userns)
+/**
+ * mapped_fsgid - return caller's fsgid mapped up into a mnt_userns
+ * @mnt_userns: user namespace of the relevant mount
+ *
+ * Use this helper to initialize a new vfs or filesystem object based on
+ * the caller's fsgid. A common example is initializing the i_gid field of
+ * a newly allocated inode triggered by a creation event such as mkdir or
+ * O_CREAT. Other examples include the allocation of quotas for a specific
+ * user.
+ *
+ * Return: the caller's current fsgid mapped up according to @mnt_userns.
+ */
+static inline kgid_t mapped_fsgid(struct user_namespace *mnt_userns)
 {
 	return kgid_from_mnt(mnt_userns, current_fsgid());
 }