From: Aaron Taylor <ataylor@subgeniuskitty.com>
Date: Sun, 2 May 2021 04:30:41 +0000 (-0700)
Subject: Updated micscif/miscif_api.c for new get_user_pages() function.
X-Git-Tag: first-build~9
X-Git-Url: https://git.subgeniuskitty.com/xeon-phi-kernel-module/.git/commitdiff_plain/1c7f6af676cdfbeadcff41ac6b335655050f0800

Updated micscif/miscif_api.c for new get_user_pages() function.

At some point the function prototype changed from this:

    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);

into this:

    long get_user_pages(unsigned long start, unsigned long nr_pages,
                    unsigned int gup_flags, struct page **pages,
                    struct vm_area_struct **vmas);

With the individual 'write' and 'force' flags transforming into gup_flags per
this patch:

    https://patchwork.kernel.org/project/linux-arm-kernel/patch/20161013002020.3062-7-lstoakes@gmail.com/
---

diff --git a/micscif/micscif_api.c b/micscif/micscif_api.c
index e13e59d..d86cb05 100644
--- a/micscif/micscif_api.c
+++ b/micscif/micscif_api.c
@@ -1982,12 +1982,9 @@ retry:
 		}
 
 		pinned_pages->nr_pages = get_user_pages(
-				current,
-				mm,
 				(uint64_t)addr,
 				nr_pages,
-				!!(prot & SCIF_PROT_WRITE),
-				0,
+				prot & SCIF_PROT_WRITE ? FOLL_WRITE : 0,
 				pinned_pages->pages,
 				pinned_pages->vma);
 		up_write(&mm->mmap_sem);