From: Juergen Gross <jgross@suse.com>
Date: Thu, 28 Oct 2021 08:12:20 +0000 (+0200)
Subject: xen: remove highmem remnants
X-Git-Tag: v5.16-rc1~68^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3ac876e8b5fc6561c15031b5a56ff1f2e4fa0e5f;p=thirdparty%2Fkernel%2Flinux.git

xen: remove highmem remnants

There are some references to highmem left in Xen pv specific code which
can be removed.

Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211028081221.2475-4-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
---

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 3123496732156..5004feb16783d 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -27,7 +27,6 @@
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/page-flags.h>
-#include <linux/highmem.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
 #include <linux/edd.h>
@@ -1229,12 +1228,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 	__supported_pte_mask &= ~_PAGE_GLOBAL;
 	__default_kernel_pte_mask &= ~_PAGE_GLOBAL;
 
-	/*
-	 * Prevent page tables from being allocated in highmem, even
-	 * if CONFIG_HIGHPTE is enabled.
-	 */
-	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
-
 	/* Get mfn list */
 	xen_build_dynamic_phys_to_machine();
 
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 325a679108550..dee8da28bf9b6 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -41,7 +41,6 @@
  * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007
  */
 #include <linux/sched/mm.h>
-#include <linux/highmem.h>
 #include <linux/debugfs.h>
 #include <linux/bug.h>
 #include <linux/vmalloc.h>