Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Vincenzo Frascino |
99 |
70.71% |
1 |
16.67% |
| Catalin Marinas |
27 |
19.29% |
1 |
16.67% |
| Ashok Kumar |
6 |
4.29% |
1 |
16.67% |
| Mark Salter |
4 |
2.86% |
1 |
16.67% |
| tongtiangen |
2 |
1.43% |
1 |
16.67% |
| Thomas Gleixner |
2 |
1.43% |
1 |
16.67% |
| Total |
140 |
|
6 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on arch/arm/mm/copypage.c
*
* Copyright (C) 2002 Deep Blue Solutions Ltd, All Rights Reserved.
* Copyright (C) 2012 ARM Ltd.
*/
#include <linux/bitops.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
#include <asm/mte.h>
void copy_highpage(struct page *to, struct page *from)
{
void *kto = page_address(to);
void *kfrom = page_address(from);
copy_page(kto, kfrom);
if (system_supports_mte() && test_bit(PG_mte_tagged, &from->flags)) {
set_bit(PG_mte_tagged, &to->flags);
mte_copy_page_tags(kto, kfrom);
}
}
EXPORT_SYMBOL(copy_highpage);
void copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma)
{
copy_highpage(to, from);
flush_dcache_page(to);
}
EXPORT_SYMBOL_GPL(copy_user_highpage);