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#include <linux/mm.h>
//
// The following kernel commit changed the get_user_pages() function signature
// on linux-4.4.y:
//
// commit 8e50b8b07f462ab4b91bc1491b1c91bd75e4ad40
// Author: Lorenzo Stoakes <lstoakes@gmail.com>
// Date: Thu Oct 13 01:20:16 2016 +0100
//
// mm: replace get_user_pages() write/force parameters with gup_flags
//
// commit 768ae309a96103ed02eb1e111e838c87854d8b51 upstream.
//
// This removes the 'write' and 'force' from get_user_pages() and replaces
// them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers
// as use of this flag can result in surprising behaviour (and hence bugs)
// within the mm subsystem.
//
// This changed the function signature from:
//
// long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
// unsigned long start, unsigned long nr_pages,
// int write, int force, struct page **pages,
// struct vm_area_struct **vmas);
//
// to:
//
// long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
// unsigned long start, unsigned long nr_pages,
// unsigned int gup_flags, struct page **pages,
// struct vm_area_struct **vmas);
//
long gupr_wrapper(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas);
long gupr_wrapper(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas)
{
return get_user_pages(tsk, mm, start, nr_pages, gup_flags, pages, vmas);
}
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