1 files changed, 0 insertions, 55 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a3a50c37603e..e7c54b9aac6d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -4102,61 +4102,6 @@ void mem_dump_obj(void *object);
 static inline void mem_dump_obj(void *object) {}
 #endif
 
-static inline bool is_write_sealed(int seals)
-{
-	return seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE);
-}
-
-/**
- * is_readonly_sealed - Checks whether write-sealed but mapped read-only,
- *                      in which case writes should be disallowing moving
- *                      forwards.
- * @seals: the seals to check
- * @vm_flags: the VMA flags to check
- *
- * Returns whether readonly sealed, in which case writess should be disallowed
- * going forward.
- */
-static inline bool is_readonly_sealed(int seals, vm_flags_t vm_flags)
-{
-	/*
-	 * Since an F_SEAL_[FUTURE_]WRITE sealed memfd can be mapped as
-	 * MAP_SHARED and read-only, take care to not allow mprotect to
-	 * revert protections on such mappings. Do this only for shared
-	 * mappings. For private mappings, don't need to mask
-	 * VM_MAYWRITE as we still want them to be COW-writable.
-	 */
-	if (is_write_sealed(seals) &&
-	    ((vm_flags & (VM_SHARED | VM_WRITE)) == VM_SHARED))
-		return true;
-
-	return false;
-}
-
-/**
- * seal_check_write - Check for F_SEAL_WRITE or F_SEAL_FUTURE_WRITE flags and
- *                    handle them.
- * @seals: the seals to check
- * @vma: the vma to operate on
- *
- * Check whether F_SEAL_WRITE or F_SEAL_FUTURE_WRITE are set; if so, do proper
- * check/handling on the vma flags.  Return 0 if check pass, or <0 for errors.
- */
-static inline int seal_check_write(int seals, struct vm_area_struct *vma)
-{
-	if (!is_write_sealed(seals))
-		return 0;
-
-	/*
-	 * New PROT_WRITE and MAP_SHARED mmaps are not allowed when
-	 * write seals are active.
-	 */
-	if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
-		return -EPERM;
-
-	return 0;
-}
-
 #ifdef CONFIG_ANON_VMA_NAME
 int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
 			  unsigned long len_in,