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-rw-r--r--include/linux/mnt_idmapping.h18
1 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/mnt_idmapping.h b/include/linux/mnt_idmapping.h
index 0ccca33a7a6d..d63e7c84a389 100644
--- a/include/linux/mnt_idmapping.h
+++ b/include/linux/mnt_idmapping.h
@@ -375,8 +375,8 @@ static inline kgid_t vfsgid_into_kgid(vfsgid_t vfsgid)
}
/**
- * mapped_fsuid - return caller's fsuid mapped up into a mnt_userns
- * @mnt_userns: the mount's idmapping
+ * mapped_fsuid - return caller's fsuid mapped according to an idmapping
+ * @idmap: the mount's idmapping
* @fs_userns: the filesystem's idmapping
*
* Use this helper to initialize a new vfs or filesystem object based on
@@ -385,18 +385,19 @@ static inline kgid_t vfsgid_into_kgid(vfsgid_t vfsgid)
* 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.
+ * Return: the caller's current fsuid mapped up according to @idmap.
*/
-static inline kuid_t mapped_fsuid(struct user_namespace *mnt_userns,
+static inline kuid_t mapped_fsuid(struct mnt_idmap *idmap,
struct user_namespace *fs_userns)
{
+ struct user_namespace *mnt_userns = mnt_idmap_owner(idmap);
return from_vfsuid(mnt_userns, fs_userns,
VFSUIDT_INIT(current_fsuid()));
}
/**
- * mapped_fsgid - return caller's fsgid mapped up into a mnt_userns
- * @mnt_userns: the mount's idmapping
+ * mapped_fsgid - return caller's fsgid mapped according to an idmapping
+ * @idmap: the mount's idmapping
* @fs_userns: the filesystem's idmapping
*
* Use this helper to initialize a new vfs or filesystem object based on
@@ -405,11 +406,12 @@ static inline kuid_t mapped_fsuid(struct user_namespace *mnt_userns,
* 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.
+ * Return: the caller's current fsgid mapped up according to @idmap.
*/
-static inline kgid_t mapped_fsgid(struct user_namespace *mnt_userns,
+static inline kgid_t mapped_fsgid(struct mnt_idmap *idmap,
struct user_namespace *fs_userns)
{
+ struct user_namespace *mnt_userns = mnt_idmap_owner(idmap);
return from_vfsgid(mnt_userns, fs_userns,
VFSGIDT_INIT(current_fsgid()));
}