The patch titled
vmalloc: remove vmap_lazy_unmap flag
has been removed from the -mm tree. Its filename was
vmalloc-eagerly-clear-ptes-on-vunmap-fix-2.patch
This patch was dropped because it was folded into vmalloc-eagerly-clear-ptes-on-vunmap.patch
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: vmalloc: remove vmap_lazy_unmap flag
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Now that vmunmap no longer leaves stray ptes lying around, we don't need
the vmap_lazy_unmap flag any more.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Cc: Nick Piggin <npiggin@xxxxxxxxx>
Cc: Bryan Schumaker <bjschuma@xxxxxxxxxx>
Cc: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Cc: Alex Elder <aelder@xxxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/xen/mmu.c | 2 --
include/linux/vmalloc.h | 2 --
mm/vmalloc.c | 5 -----
3 files changed, 9 deletions(-)
diff -puN arch/x86/xen/mmu.c~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2 arch/x86/xen/mmu.c
--- a/arch/x86/xen/mmu.c~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2
+++ a/arch/x86/xen/mmu.c
@@ -2415,8 +2415,6 @@ void __init xen_init_mmu_ops(void)
x86_init.paging.pagetable_setup_done = xen_pagetable_setup_done;
pv_mmu_ops = xen_mmu_ops;
- vmap_lazy_unmap = false;
-
memset(dummy_mapping, 0xff, PAGE_SIZE);
}
diff -puN include/linux/vmalloc.h~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2 include/linux/vmalloc.h
--- a/include/linux/vmalloc.h~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2
+++ a/include/linux/vmalloc.h
@@ -7,8 +7,6 @@
struct vm_area_struct; /* vma defining user mapping in mm_types.h */
-extern bool vmap_lazy_unmap;
-
/* bits in flags of vmalloc's vm_struct below */
#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
#define VM_ALLOC 0x00000002 /* vmalloc() */
diff -puN mm/vmalloc.c~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2 mm/vmalloc.c
--- a/mm/vmalloc.c~vmalloc-eagerly-clear-ptes-on-vunmap-fix-2
+++ a/mm/vmalloc.c
@@ -31,8 +31,6 @@
#include <asm/tlbflush.h>
#include <asm/shmparam.h>
-bool vmap_lazy_unmap __read_mostly = true;
-
/*** Page table manipulation functions ***/
static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
@@ -503,9 +501,6 @@ static unsigned long lazy_max_pages(void
{
unsigned int log;
- if (!vmap_lazy_unmap)
- return 0;
-
log = fls(num_online_cpus());
return log * (32UL * 1024 * 1024 / PAGE_SIZE);
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
linux-next.patch
vmalloc-eagerly-clear-ptes-on-vunmap.patch
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