[to-be-updated] kvm-s390-fix-for-hugepage-vmalloc.patch removed from -mm tree

[to-be-updated] kvm-s390-fix-for-hugepage-vmalloc.patch removed from -mm tree

[akpm]

The patch titled
     Subject: KVM: s390: fix for hugepage vmalloc
has been removed from the -mm tree.  Its filename was
     kvm-s390-fix-for-hugepage-vmalloc.patch

This patch was dropped because an updated version will be merged

------------------------------------------------------
From: Claudio Imbrenda <imbrenda@linux.ibm.com>
Subject: KVM: s390: fix for hugepage vmalloc

The Create Secure Configuration Ultravisor Call does not support using
large pages for the virtual memory area.  This is a hardware limitation.

This patch replaces the vzalloc call with a longer but equivalent
__vmalloc_node_range call, also setting the VM_NO_HUGE_VMAP flag, to
guarantee that this allocation will not be performed with large pages.

Link: https://lkml.kernel.org/r/20210608180618.477766-3-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Fixes: 121e6f3258fe393e22c3 ("mm/vmalloc: hugepage vmalloc mappings")
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>	[s390]
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/s390/kvm/pv.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/arch/s390/kvm/pv.c~kvm-s390-fix-for-hugepage-vmalloc
+++ a/arch/s390/kvm/pv.c
@@ -140,7 +140,10 @@ static int kvm_s390_pv_alloc_vm(struct k
 	/* Allocate variable storage */
 	vlen = ALIGN(virt * ((npages * PAGE_SIZE) / HPAGE_SIZE), PAGE_SIZE);
 	vlen += uv_info.guest_virt_base_stor_len;
-	kvm->arch.pv.stor_var = vzalloc(vlen);
+	kvm->arch.pv.stor_var = __vmalloc_node_range(vlen, PAGE_SIZE, VMALLOC_START, VMALLOC_END,
+						     GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL,
+						     VM_NO_HUGE_VMAP, NUMA_NO_NODE,
+						     __builtin_return_address(0));
 	if (!kvm->arch.pv.stor_var)
 		goto out_err;
 	return 0;
_

Patches currently in -mm which might be from imbrenda@linux.ibm.com are