aufs mmap patches for k6.1 & k6.6 (#4329)

* Add 6.1 & 6.6 patches

6.6 should be temporary

* Update apply 6.1 & 6.6 patches

6.6 should be temporary

kernel-kit/patches/aufs_sources/apply

@@ -49,4 +49,16 @@ if [ "$kseries" = "5.10" ] ; then
 	fi
 fi
 
+if [ "$kseries" = "6.1" ] ; then
+	if vercmp $kver ge 6.1.119 ; then
+		patch aufs6-mmap.patch ../patches/aufs_sources/k6.1.119.patch
+	fi
+fi
+
+if [ "$kseries" = "6.6" ] ; then
+	if vercmp $kver ge 6.6.63 ; then
+		patch aufs6-mmap.patch ../patches/aufs_sources/k6.6.63.patch
+	fi
+fi
+
 ### END ###

kernel-kit/patches/aufs_sources/k6.1.119.patch

@@ -0,0 +1,15 @@
+--- aufs6-mmap.patch.orig	2024-11-30 11:59:55.826601709 +0000
++++ aufs6-mmap.patch	2024-11-30 11:57:13.876603849 +0000
+@@ -237,9 +237,9 @@
+  				vma = merge;
+  				/* Update vm_flags to pick up the change. */
+ @@ -2746,7 +2746,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
+- 	if (vma->vm_ops && vma->vm_ops->close)
+- 		vma->vm_ops->close(vma);
+- unmap_and_free_vma:
++ 	return addr;
++ 
++ unmap_and_free_file_vma:
+ -	fput(vma->vm_file);
+ +	vma_fput(vma);
+  	vma->vm_file = NULL;

kernel-kit/patches/aufs_sources/k6.6.63.patch

@@ -0,0 +1,23 @@
+--- aufs6-mmap.patch.orig	2024-11-30 12:04:39.029931230 +0000
++++ aufs6-mmap.patch	2024-11-30 11:42:03.209949373 +0000
+@@ -219,14 +219,14 @@
+  				vma = merge;
+  				/* Update vm_flags to pick up the change. */
+ @@ -2904,7 +2904,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
++ 	return addr;
+
+- 	if (file || vma->vm_file) {
+- unmap_and_free_vma:
+--		fput(vma->vm_file);
+-+		vma_fput(vma);
+- 		vma->vm_file = NULL;
++ unmap_and_free_file_vma:
++-	fput(vma->vm_file);
+++	vma_fput(vma);
++ 	vma->vm_file = NULL;
+
+- 		vma_iter_set(&vmi, vma->vm_end);
++ 	vma_iter_set(&vmi, vma->vm_end);
+ @@ -2966,6 +2966,9 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+  	unsigned long populate = 0;
+  	unsigned long ret = -EINVAL;