diff options
Diffstat (limited to 'mm-backport.h')
| -rw-r--r-- | mm-backport.h | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/mm-backport.h b/mm-backport.h deleted file mode 100644 index c435281..0000000 --- a/mm-backport.h +++ /dev/null @@ -1,33 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Backport mm APIs. - * - * Copyright (C) 2021 Google LLC - */ -#ifndef __MM_BACKPORT_H__ -#define __MM_BACKPORT_H__ - -#include <linux/mm.h> -#include <linux/version.h> - -#if KERNEL_VERSION(5, 6, 0) > LINUX_VERSION_CODE - -/* - * Define pin_user_pages* which are introduced in Linux 5.6. - * - * We simply define pin_user_pages* as get_user_pages* here so our driver can - * prefer PIN over GET when possible. - */ -#ifndef FOLL_PIN - -/* define as zero to prevent older get_user_pages* returning EINVAL */ -#define FOLL_LONGTERM 0 - -#define pin_user_pages_fast get_user_pages_fast -#define unpin_user_page put_page - -#endif /* FOLL_PIN */ - -#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0) */ - -#endif /* __MM_BACKPORT_H__ */ |