Merge branch 'for-next/set_memory' into for-next/core

* for-next/set_memory:
  : Fix + documentation for the arm64 change_memory_common()
  arm64/mm: Document why linear map split failure upon vm_reset_perms is not problematic
  arm64/pageattr: Propagate return value from __change_memory_common

Author: ctmarinas

arch/arm64/mm/pageattr.c

@@ -148,6 +148,7 @@ static int change_memory_common(unsigned long addr, int numpages,
 	unsigned long size = PAGE_SIZE * numpages;
 	unsigned long end = start + size;
 	struct vm_struct *area;
+	int ret;
 
 	if (!PAGE_ALIGNED(addr)) {
 		start &= PAGE_MASK;
@@ -186,8 +187,10 @@ static int change_memory_common(unsigned long addr, int numpages,
 		unsigned long idx = (start - (unsigned long)kasan_reset_tag(area->addr))
 				    >> PAGE_SHIFT;
 		for (; numpages; idx++, numpages--) {
-			__change_memory_common((u64)page_address(area->pages[idx]),
-					       PAGE_SIZE, set_mask, clear_mask);
+			ret = __change_memory_common((u64)page_address(area->pages[idx]),
+						     PAGE_SIZE, set_mask, clear_mask);
+			if (ret)
+				return ret;
 		}
 	}