aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorKonstantin Khlebnikov <khlebnikov@openvz.org>2012-10-08 16:29:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:22:19 +0900
commit314e51b9851b4f4e8ab302243ff5a6fc6147f379 (patch)
treef757b89206355fd129830782566768693eed23ce
parent0103bd16fb90bc741c7a03fd1ea4e8a505abad23 (diff)
downloadlinaro-lsk-314e51b9851b4f4e8ab302243ff5a6fc6147f379.tar.gz
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA, currently it lost original meaning but still has some effects: | effect | alternative flags -+------------------------+--------------------------------------------- 1| account as reserved_vm | VM_IO 2| skip in core dump | VM_IO, VM_DONTDUMP 3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP 4| do not mlock | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP This patch removes reserved_vm counter from mm_struct. Seems like nobody cares about it, it does not exported into userspace directly, it only reduces total_vm showed in proc. Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP. remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP. remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP. [akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup] Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Eric Paris <eparis@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Venkatesh Pallipadi <venki@google.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--Documentation/vm/unevictable-lru.txt4
-rw-r--r--arch/alpha/kernel/pci-sysfs.c2
-rw-r--r--arch/ia64/kernel/perfmon.c2
-rw-r--r--arch/ia64/mm/init.c3
-rw-r--r--arch/powerpc/kvm/book3s_hv.c2
-rw-r--r--arch/sparc/kernel/pci.c2
-rw-r--r--arch/unicore32/kernel/process.c2
-rw-r--r--arch/x86/xen/mmu.c3
-rw-r--r--drivers/char/mbcs.c2
-rw-r--r--drivers/char/mem.c2
-rw-r--r--drivers/char/mspec.c2
-rw-r--r--drivers/gpu/drm/drm_gem.c2
-rw-r--r--drivers/gpu/drm/drm_vm.c10
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_gem.c2
-rw-r--r--drivers/gpu/drm/gma500/framebuffer.c3
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_vm.c4
-rw-r--r--drivers/gpu/drm/udl/udl_fb.c2
-rw-r--r--drivers/infiniband/hw/ehca/ehca_uverbs.c4
-rw-r--r--drivers/infiniband/hw/ipath/ipath_file_ops.c2
-rw-r--r--drivers/infiniband/hw/qib/qib_file_ops.c2
-rw-r--r--drivers/media/pci/meye/meye.c2
-rw-r--r--drivers/media/platform/omap/omap_vout.c2
-rw-r--r--drivers/media/platform/vino.c2
-rw-r--r--drivers/media/usb/sn9c102/sn9c102_core.c3
-rw-r--r--drivers/media/usb/usbvision/usbvision-video.c3
-rw-r--r--drivers/media/v4l2-core/videobuf-dma-sg.c2
-rw-r--r--drivers/media/v4l2-core/videobuf-vmalloc.c2
-rw-r--r--drivers/media/v4l2-core/videobuf2-memops.c2
-rw-r--r--drivers/misc/carma/carma-fpga.c2
-rw-r--r--drivers/misc/sgi-gru/grufile.c5
-rw-r--r--drivers/mtd/mtdchar.c2
-rw-r--r--drivers/scsi/sg.c2
-rw-r--r--drivers/staging/omapdrm/omap_gem_dmabuf.c2
-rw-r--r--drivers/staging/tidspbridge/rmgr/drv_interface.c2
-rw-r--r--drivers/uio/uio.c4
-rw-r--r--drivers/usb/mon/mon_bin.c2
-rw-r--r--drivers/video/68328fb.c2
-rw-r--r--drivers/video/aty/atyfb_base.c3
-rw-r--r--drivers/video/fb-puv3.c3
-rw-r--r--drivers/video/fb_defio.c2
-rw-r--r--drivers/video/fbmem.c3
-rw-r--r--drivers/video/gbefb.c2
-rw-r--r--drivers/video/omap2/omapfb/omapfb-main.c2
-rw-r--r--drivers/video/sbuslib.c5
-rw-r--r--drivers/video/smscufx.c1
-rw-r--r--drivers/video/udlfb.c1
-rw-r--r--drivers/video/vermilion/vermilion.c1
-rw-r--r--drivers/video/vfb.c1
-rw-r--r--drivers/xen/gntalloc.c2
-rw-r--r--drivers/xen/gntdev.c2
-rw-r--r--drivers/xen/privcmd.c3
-rw-r--r--fs/binfmt_elf.c2
-rw-r--r--fs/binfmt_elf_fdpic.c2
-rw-r--r--fs/hugetlbfs/inode.c2
-rw-r--r--fs/proc/task_mmu.c2
-rw-r--r--include/linux/mempolicy.h2
-rw-r--r--include/linux/mm.h3
-rw-r--r--include/linux/mm_types.h1
-rw-r--r--kernel/events/core.c2
-rw-r--r--mm/ksm.c3
-rw-r--r--mm/memory.c11
-rw-r--r--mm/mlock.c2
-rw-r--r--mm/mmap.c2
-rw-r--r--mm/nommu.c2
-rw-r--r--mm/vmalloc.c3
-rw-r--r--security/selinux/selinuxfs.c2
-rw-r--r--sound/core/pcm_native.c6
-rw-r--r--sound/usb/usx2y/us122l.c2
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.c2
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.c2
70 files changed, 77 insertions, 105 deletions
diff --git a/Documentation/vm/unevictable-lru.txt b/Documentation/vm/unevictable-lru.txt
index fa206cccf89..323ff5dba1c 100644
--- a/Documentation/vm/unevictable-lru.txt
+++ b/Documentation/vm/unevictable-lru.txt
@@ -371,8 +371,8 @@ mlock_fixup() filters several classes of "special" VMAs:
mlock_fixup() will call make_pages_present() in the hugetlbfs VMA range to
allocate the huge pages and populate the ptes.
-3) VMAs with VM_DONTEXPAND or VM_RESERVED are generally userspace mappings of
- kernel pages, such as the VDSO page, relay channel pages, etc. These pages
+3) VMAs with VM_DONTEXPAND are generally userspace mappings of kernel pages,
+ such as the VDSO page, relay channel pages, etc. These pages
are inherently unevictable and are not managed on the LRU lists.
mlock_fixup() treats these VMAs the same as hugetlbfs VMAs. It calls
make_pages_present() to populate the ptes.
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 53649c7d006..b51f7b4818c 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -26,7 +26,7 @@ static int hose_mmap_page_range(struct pci_controller *hose,
base = sparse ? hose->sparse_io_base : hose->dense_io_base;
vma->vm_pgoff += base >> PAGE_SHIFT;
- vma->vm_flags |= (VM_IO | VM_RESERVED);
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
return io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
vma->vm_end - vma->vm_start,
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index f388b4e18a3..ea39eba61ef 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2307,7 +2307,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
*/
vma->vm_mm = mm;
vma->vm_file = get_file(filp);
- vma->vm_flags = VM_READ| VM_MAYREAD |VM_RESERVED;
+ vma->vm_flags = VM_READ|VM_MAYREAD|VM_DONTEXPAND|VM_DONTDUMP;
vma->vm_page_prot = PAGE_READONLY; /* XXX may need to change */
/*
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 0eab454867a..082e383c1b6 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -138,7 +138,8 @@ ia64_init_addr_space (void)
vma->vm_mm = current->mm;
vma->vm_end = PAGE_SIZE;
vma->vm_page_prot = __pgprot(pgprot_val(PAGE_READONLY) | _PAGE_MA_NAT);
- vma->vm_flags = VM_READ | VM_MAYREAD | VM_IO | VM_RESERVED;
+ vma->vm_flags = VM_READ | VM_MAYREAD | VM_IO |
+ VM_DONTEXPAND | VM_DONTDUMP;
down_write(&current->mm->mmap_sem);
if (insert_vm_struct(current->mm, vma)) {
up_write(&current->mm->mmap_sem);
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 83e929e66f9..721d4603a23 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1183,7 +1183,7 @@ static const struct vm_operations_struct kvm_rma_vm_ops = {
static int kvm_rma_mmap(struct file *file, struct vm_area_struct *vma)
{
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &kvm_rma_vm_ops;
return 0;
}
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index acc8c838ff7..75b31bcdead 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -779,7 +779,7 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev,
static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state)
{
- vma->vm_flags |= (VM_IO | VM_RESERVED);
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
}
/* Set vm_page_prot of VMA, as appropriate for this architecture, for a pci
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b6f0458c314..b008586dad7 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -380,7 +380,7 @@ int vectors_user_mapping(void)
return install_special_mapping(mm, 0xffff0000, PAGE_SIZE,
VM_READ | VM_EXEC |
VM_MAYREAD | VM_MAYEXEC |
- VM_RESERVED,
+ VM_DONTEXPAND | VM_DONTDUMP,
NULL);
}
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 5a16824cc2b..fd28d86fe3d 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2451,8 +2451,7 @@ int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
prot = __pgprot(pgprot_val(prot) | _PAGE_IOMAP);
- BUG_ON(!((vma->vm_flags & (VM_PFNMAP | VM_RESERVED | VM_IO)) ==
- (VM_PFNMAP | VM_RESERVED | VM_IO)));
+ BUG_ON(!((vma->vm_flags & (VM_PFNMAP | VM_IO)) == (VM_PFNMAP | VM_IO)));
rmd.mfn = mfn;
rmd.prot = prot;
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 0c7d340b9ab..f74e892711d 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -507,7 +507,7 @@ static int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- /* Remap-pfn-range will mark the range VM_IO and VM_RESERVED */
+ /* Remap-pfn-range will mark the range VM_IO */
if (remap_pfn_range(vma,
vma->vm_start,
__pa(soft->gscr_addr) >> PAGE_SHIFT,
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index e5eedfa24c9..0537903c985 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -322,7 +322,7 @@ static int mmap_mem(struct file *file, struct vm_area_struct *vma)
vma->vm_ops = &mmap_mem_ops;
- /* Remap-pfn-range will mark the range VM_IO and VM_RESERVED */
+ /* Remap-pfn-range will mark the range VM_IO */
if (remap_pfn_range(vma,
vma->vm_start,
vma->vm_pgoff,
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
index 845f97fd183..e1f60f968fd 100644
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -286,7 +286,7 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma,
atomic_set(&vdata->refcnt, 1);
vma->vm_private_data = vdata;
- vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP | VM_DONTEXPAND);
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
if (vdata->type == MSPEC_FETCHOP || vdata->type == MSPEC_UNCACHED)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
vma->vm_ops = &mspec_vm_ops;
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 92177d5aede..24efae464e2 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -706,7 +706,7 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
goto out_unlock;
}
- vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = obj->dev->driver->gem_vm_ops;
vma->vm_private_data = map->handle;
vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 23a824e6a22..db7bd292410 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -514,8 +514,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
vma->vm_ops = &drm_vm_dma_ops;
- vma->vm_flags |= VM_RESERVED; /* Don't swap */
- vma->vm_flags |= VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
drm_vm_open_locked(dev, vma);
return 0;
@@ -643,21 +642,16 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
case _DRM_SHM:
vma->vm_ops = &drm_vm_shm_ops;
vma->vm_private_data = (void *)map;
- /* Don't let this area swap. Change when
- DRM_KERNEL advisory is supported. */
- vma->vm_flags |= VM_RESERVED;
break;
case _DRM_SCATTER_GATHER:
vma->vm_ops = &drm_vm_sg_ops;
vma->vm_private_data = (void *)map;
- vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = drm_dma_prot(map->type, vma);
break;
default:
return -EINVAL; /* This should never happen. */
}
- vma->vm_flags |= VM_RESERVED; /* Don't swap */
- vma->vm_flags |= VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
drm_vm_open_locked(dev, vma);
return 0;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index fcdbe46914f..d2545560664 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -500,7 +500,7 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp,
DRM_DEBUG_KMS("%s\n", __FILE__);
- vma->vm_flags |= (VM_IO | VM_RESERVED);
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
update_vm_cache_attr(exynos_gem_obj, vma);
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 884ba73ac6c..afded54dbb1 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -178,8 +178,7 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
*/
vma->vm_ops = &psbfb_vm_ops;
vma->vm_private_data = (void *)psbfb;
- vma->vm_flags |= VM_RESERVED | VM_IO |
- VM_MIXEDMAP | VM_DONTEXPAND;
+ vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index a877813571a..3ba72dbdc4b 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -285,7 +285,7 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
*/
vma->vm_private_data = bo;
- vma->vm_flags |= VM_RESERVED | VM_IO | VM_MIXEDMAP | VM_DONTEXPAND;
+ vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP;
return 0;
out_unref:
ttm_bo_unref(&bo);
@@ -300,7 +300,7 @@ int ttm_fbdev_mmap(struct vm_area_struct *vma, struct ttm_buffer_object *bo)
vma->vm_ops = &ttm_bo_vm_ops;
vma->vm_private_data = ttm_bo_reference(bo);
- vma->vm_flags |= VM_RESERVED | VM_IO | VM_MIXEDMAP | VM_DONTEXPAND;
+ vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND;
return 0;
}
EXPORT_SYMBOL(ttm_fbdev_mmap);
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 67df842fbb3..69a2b16f42a 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -243,7 +243,7 @@ static int udl_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
size = 0;
}
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
return 0;
}
diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c
index 45ee89b65c2..1a1d5d99fcf 100644
--- a/drivers/infiniband/hw/ehca/ehca_uverbs.c
+++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c
@@ -117,7 +117,7 @@ static int ehca_mmap_fw(struct vm_area_struct *vma, struct h_galpas *galpas,
physical = galpas->user.fw_handle;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
ehca_gen_dbg("vsize=%llx physical=%llx", vsize, physical);
- /* VM_IO | VM_RESERVED are set by remap_pfn_range() */
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
ret = remap_4k_pfn(vma, vma->vm_start, physical >> EHCA_PAGESHIFT,
vma->vm_page_prot);
if (unlikely(ret)) {
@@ -139,7 +139,7 @@ static int ehca_mmap_queue(struct vm_area_struct *vma, struct ipz_queue *queue,
u64 start, ofs;
struct page *page;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
start = vma->vm_start;
for (ofs = 0; ofs < queue->queue_length; ofs += PAGE_SIZE) {
u64 virt_addr = (u64)ipz_qeit_calc(queue, ofs);
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 736d9edbdbe..3eb7e454849 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -1225,7 +1225,7 @@ static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr,
vma->vm_pgoff = (unsigned long) addr >> PAGE_SHIFT;
vma->vm_ops = &ipath_file_vm_ops;
- vma->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
ret = 1;
bail:
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index faa44cb0807..959a5c4ff81 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -971,7 +971,7 @@ static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr,
vma->vm_pgoff = (unsigned long) addr >> PAGE_SHIFT;
vma->vm_ops = &qib_file_vm_ops;
- vma->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
ret = 1;
bail:
diff --git a/drivers/media/pci/meye/meye.c b/drivers/media/pci/meye/meye.c
index 7bc775219f9..e5a76da8608 100644
--- a/drivers/media/pci/meye/meye.c
+++ b/drivers/media/pci/meye/meye.c
@@ -1647,7 +1647,7 @@ static int meye_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_ops = &meye_vm_ops;
vma->vm_flags &= ~VM_IO; /* not I/O memory */
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = (void *) (offset / gbufsize);
meye_vm_open(vma);
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 66ac21d466a..134016f0e66 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -911,7 +911,7 @@ static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
q->bufs[i]->baddr = vma->vm_start;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
vma->vm_ops = &omap_vout_vm_ops;
vma->vm_private_data = (void *) vout;
diff --git a/drivers/media/platform/vino.c b/drivers/media/platform/vino.c
index 790d96cffee..70b0bf4b290 100644
--- a/drivers/media/platform/vino.c
+++ b/drivers/media/platform/vino.c
@@ -3950,7 +3950,7 @@ found:
fb->map_count = 1;
- vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_flags &= ~VM_IO;
vma->vm_private_data = fb;
vma->vm_file = file;
diff --git a/drivers/media/usb/sn9c102/sn9c102_core.c b/drivers/media/usb/sn9c102/sn9c102_core.c
index 19ea780b16f..5bfc8e2f018 100644
--- a/drivers/media/usb/sn9c102/sn9c102_core.c
+++ b/drivers/media/usb/sn9c102/sn9c102_core.c
@@ -2126,8 +2126,7 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma)
return -EINVAL;
}
- vma->vm_flags |= VM_IO;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
pos = cam->frame[i].bufmem;
while (size > 0) { /* size is page-aligned */
diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c
index f67018ed379..5c36a57e659 100644
--- a/drivers/media/usb/usbvision/usbvision-video.c
+++ b/drivers/media/usb/usbvision/usbvision-video.c
@@ -1108,8 +1108,7 @@ static int usbvision_mmap(struct file *file, struct vm_area_struct *vma)
}
/* VM_IO is eventually going to replace PageReserved altogether */
- vma->vm_flags |= VM_IO;
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
pos = usbvision->frame[i].data;
while (size > 0) {
diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index f300deafd26..828e7c10bd7 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -582,7 +582,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q,
map->count = 1;
map->q = q;
vma->vm_ops = &videobuf_vm_ops;
- vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_flags &= ~VM_IO; /* using shared anonymous pages */
vma->vm_private_data = map;
dprintk(1, "mmap %p: q=%p %08lx-%08lx pgoff %08lx bufs %d-%d\n",
diff --git a/drivers/media/v4l2-core/videobuf-vmalloc.c b/drivers/media/v4l2-core/videobuf-vmalloc.c
index df142580e44..2ff7fcc77b1 100644
--- a/drivers/media/v4l2-core/videobuf-vmalloc.c
+++ b/drivers/media/v4l2-core/videobuf-vmalloc.c
@@ -270,7 +270,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q,
}
vma->vm_ops = &videobuf_vm_ops;
- vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = map;
dprintk(1, "mmap %p: q=%p %08lx-%08lx (%lx) pgoff %08lx buf %d\n",
diff --git a/drivers/media/v4l2-core/videobuf2-memops.c b/drivers/media/v4l2-core/videobuf2-memops.c
index 504cd4cbe29..051ea3571b2 100644
--- a/drivers/media/v4l2-core/videobuf2-memops.c
+++ b/drivers/media/v4l2-core/videobuf2-memops.c
@@ -163,7 +163,7 @@ int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr,
return ret;
}
- vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = priv;
vma->vm_ops = vm_ops;
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 0c43297ed9a..8835eabb3b8 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -1243,8 +1243,6 @@ static int data_mmap(struct file *filp, struct vm_area_struct *vma)
return -EINVAL;
}
- /* IO memory (stop cacheing) */
- vma->vm_flags |= VM_IO | VM_RESERVED;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
return io_remap_pfn_range(vma, vma->vm_start, addr, vsize,
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index ecafa4ba238..492c8cac69a 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -108,9 +108,8 @@ static int gru_file_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_end & (GRU_GSEG_PAGESIZE - 1))
return -EINVAL;
- vma->vm_flags |=
- (VM_IO | VM_DONTCOPY | VM_LOCKED | VM_DONTEXPAND | VM_PFNMAP |
- VM_RESERVED);
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_LOCKED |
+ VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_page_prot = PAGE_SHARED;
vma->vm_ops = &gru_vm_ops;
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index a6e74514e66..73ae81a629f 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1182,7 +1182,7 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
return -EINVAL;
if (set_vm_offset(vma, off) < 0)
return -EINVAL;
- vma->vm_flags |= VM_IO | VM_RESERVED;
+ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
#ifdef pgprot_noncached
if (file->f_flags & O_DSYNC || off >= __pa(high_memory))
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 9c5c5f2b396..be2c9a6561f 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1257,7 +1257,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
}
sfp->mmap_called = 1;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = sfp;
vma->vm_ops = &sg_mmap_vm_ops;
return 0;
diff --git a/drivers/staging/omapdrm/omap_gem_dmabuf.c b/drivers/staging/omapdrm/omap_gem_dmabuf.c
index 42728e0cc19..c6f3ef6f57b 100644
--- a/drivers/staging/omapdrm/omap_gem_dmabuf.c
+++ b/drivers/staging/omapdrm/omap_gem_dmabuf.c
@@ -160,7 +160,7 @@ static int omap_gem_dmabuf_mmap(struct dma_buf *buffer,
goto out_unlock;
}
- vma->vm_flags |= VM_RESERVED | VM_IO | VM_PFNMAP | VM_DONTEXPAND;
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = obj->dev->driver->gem_vm_ops;
vma->vm_private_data = obj;
vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c
index bddea1d3b2c..701a11ac676 100644
--- a/drivers/staging/tidspbridge/rmgr/drv_interface.c
+++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c
@@ -261,7 +261,7 @@ static int bridge_mmap(struct file *filp, struct vm_area_struct *vma)
{
u32 status;
- vma->vm_flags |= VM_RESERVED | VM_IO;
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
dev_dbg(bridge, "%s: vm filp %p start %lx end %lx page_prot %ulx "
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index a783d533a1a..5110f367f1f 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -653,8 +653,6 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
if (mi < 0)
return -EINVAL;
- vma->vm_flags |= VM_IO | VM_RESERVED;
-
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
return remap_pfn_range(vma,
@@ -666,7 +664,7 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
static int uio_mmap_logical(struct vm_area_struct *vma)
{
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &uio_vm_ops;
uio_vma_open(vma);
return 0;
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index 91cd85076a4..9a62e89d6dc 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1247,7 +1247,7 @@ static int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
{
/* don't do anything here: "fault" will set up page table entries */
vma->vm_ops = &mon_bin_vm_ops;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = filp->private_data;
mon_bin_vma_open(vma);
return 0;
diff --git a/drivers/video/68328fb.c b/drivers/video/68328fb.c
index a425d65d5ba..fa44fbed397 100644
--- a/drivers/video/68328fb.c
+++ b/drivers/video/68328fb.c
@@ -400,7 +400,7 @@ static int mc68x328fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
#ifndef MMU
/* this is uClinux (no MMU) specific code */
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_start = videomemory;
return 0;
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 3f2e8c13f1c..868932f904e 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -1942,8 +1942,7 @@ static int atyfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
off = vma->vm_pgoff << PAGE_SHIFT;
size = vma->vm_end - vma->vm_start;
- /* To stop the swapper from even considering these pages. */
- vma->vm_flags |= (VM_IO | VM_RESERVED);
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
if (((vma->vm_pgoff == 0) && (size == info->fix.smem_len)) ||
((off == info->fix.smem_len) && (size == PAGE_SIZE)))
diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c
index 60a787fa32c..7d106f1f490 100644
--- a/drivers/video/fb-puv3.c
+++ b/drivers/video/fb-puv3.c
@@ -653,9 +653,8 @@ int unifb_mmap(struct fb_info *info,
vma->vm_page_prot))
return -EAGAIN;
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
return 0;
-
}
static struct fb_ops unifb_ops = {
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index 64cda560c48..88cad6b8b47 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -166,7 +166,7 @@ static const struct address_space_operations fb_deferred_io_aops = {
static int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
vma->vm_ops = &fb_deferred_io_vm_ops;
- vma->vm_flags |= ( VM_RESERVED | VM_DONTEXPAND );
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
if (!(info->flags & FBINFO_VIRTFB))
vma->vm_flags |= VM_IO;
vma->vm_private_data = info;
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 0dff12a1dae..3ff0105a496 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1410,8 +1410,7 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
return -EINVAL;
off += start;
vma->vm_pgoff = off >> PAGE_SHIFT;
- /* This is an IO map - tell maydump to skip this VMA */
- vma->vm_flags |= VM_IO | VM_RESERVED;
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by io_remap_pfn_range()*/
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
fb_pgprotect(file, vma, off);
if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index 7e7b7a9ba27..05e2a8a99d8 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -1024,7 +1024,7 @@ static int gbefb_mmap(struct fb_info *info,
pgprot_val(vma->vm_page_prot) =
pgprot_fb(pgprot_val(vma->vm_page_prot));
- vma->vm_flags |= VM_IO | VM_RESERVED;
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
/* look for the starting tile */
tile = &gbe_tiles.cpu[offset >> TILE_SHIFT];
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 3c39aa8de92..15373f4aee1 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1128,7 +1128,7 @@ static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
vma->vm_pgoff = off >> PAGE_SHIFT;
- vma->vm_flags |= VM_IO | VM_RESERVED;
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
vma->vm_ops = &mmap_user_ops;
vma->vm_private_data = rg;
diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c
index 3c1de981a18..296afae442f 100644
--- a/drivers/video/sbuslib.c
+++ b/drivers/video/sbuslib.c
@@ -57,9 +57,8 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
off = vma->vm_pgoff << PAGE_SHIFT;
- /* To stop the swapper from even considering these pages */
- vma->vm_flags |= (VM_IO | VM_RESERVED);
-
+ /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
+
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
/* Each page, see which map applies */
diff --git a/drivers/video/smscufx.c b/drivers/video/smscufx.c
index 5533a32c6ca..97bd6620c36 100644
--- a/drivers/video/smscufx.c
+++ b/drivers/video/smscufx.c
@@ -803,7 +803,6 @@ static int ufx_ops_mmap(struct fb_info *info, struct vm_area_struct *vma)
size = 0;
}
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
return 0;
}
diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index 8af64148294..f45eba3d615 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -345,7 +345,6 @@ static int dlfb_ops_mmap(struct fb_info *info, struct vm_area_struct *vma)
size = 0;
}
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
return 0;
}
diff --git a/drivers/video/vermilion/vermilion.c b/drivers/video/vermilion/vermilion.c
index 970e43d13f5..89aef343e29 100644
--- a/drivers/video/vermilion/vermilion.c
+++ b/drivers/video/vermilion/vermilion.c
@@ -1018,7 +1018,6 @@ static int vmlfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
offset += vinfo->vram_start;
pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
- vma->vm_flags |= VM_RESERVED | VM_IO;
if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
size, vma->vm_page_prot))
return -EAGAIN;
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index 501a922aa9d..c7f692525b8 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -439,7 +439,6 @@ static int vfb_mmap(struct fb_info *info,
size = 0;
}
- vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
return 0;
}
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index 934985d14c2..4097987b330 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -535,7 +535,7 @@ static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_private_data = vm_priv;
- vma->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &gntalloc_vmops;
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 5df9fd847b2..610bfc6be17 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -720,7 +720,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
vma->vm_ops = &gntdev_vmops;
- vma->vm_flags |= VM_RESERVED|VM_DONTEXPAND;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
if (use_ptemod)
vma->vm_flags |= VM_DONTCOPY;
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index ef6389580b8..8adb9cc267f 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -455,7 +455,8 @@ static int privcmd_mmap(struct file *file, struct vm_area_struct *vma)
{
/* DONTCOPY is essential for Xen because copy_page_range doesn't know
* how to recreate these mappings */
- vma->vm_flags |= VM_RESERVED | VM_IO | VM_DONTCOPY | VM_PFNMAP;
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTCOPY |
+ VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &privcmd_vm_ops;
vma->vm_private_data = NULL;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 2b72d26e2e4..e800dec958c 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1135,7 +1135,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
}
/* Do not dump I/O mapped devices or special mappings */
- if (vma->vm_flags & (VM_IO | VM_RESERVED))
+ if (vma->vm_flags & VM_IO)
return 0;
/* By default, dump shared memory if mapped from an anonymous file. */
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 08d812b3228..262db114ff0 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1205,7 +1205,7 @@ static int maydump(struct vm_area_struct *vma, unsigned long mm_flags)
int dump_ok;
/* Do not dump I/O mapped devices or special mappings */
- if (vma->vm_flags & (VM_IO | VM_RESERVED)) {
+ if (vma->vm_flags & VM_IO) {
kdcore("%08lx: %08lx: no (IO)", vma->vm_start, vma->vm_flags);
return 0;
}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 9460120a517..0a0ab8e21b1 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -110,7 +110,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
* way when do_mmap_pgoff unwinds (may be important on powerpc
* and ia64).
*/
- vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
+ vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &hugetlb_vm_ops;
if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 4540b8f76f1..79827ce03e3 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -54,7 +54,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
"VmPTE:\t%8lu kB\n"
"VmSwap:\t%8lu kB\n",
hiwater_vm << (PAGE_SHIFT-10),
- (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
+ total_vm << (PAGE_SHIFT-10),
mm->locked_vm << (PAGE_SHIFT-10),
mm->pinned_vm << (PAGE_SHIFT-10),
hiwater_rss << (PAGE_SHIFT-10),
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 95b738c7abf..ba7a0ff19d3 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -239,7 +239,7 @@ extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol,
/* Check if a vma is migratable */
static inline int vma_migratable(struct vm_area_struct *vma)
{
- if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED))
+ if (vma->vm_flags & (VM_IO | VM_HUGETLB | VM_PFNMAP))
return 0;
/*
* Migration allocates pages in the highest zone. If we cannot
diff --git a/include/linux/mm.h b/include/linux/mm.h
index dc08d558e05..0514fe9d3c8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -96,7 +96,6 @@ extern unsigned int kobjsize(const void *objp);
#define VM_DONTCOPY 0x00020000 /* Do not copy this vma on fork */
#define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */
-#define VM_RESERVED 0x00080000 /* Count as reserved_vm like IO */
#define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */
#define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */
#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
@@ -148,7 +147,7 @@ extern unsigned int kobjsize(const void *objp);
* Special vmas that are non-mergable, non-mlock()able.
* Note: mm/huge_memory.c VM_NO_THP depends on this definition.
*/
-#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
+#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_PFNMAP)
/*
* mapping from the currently active vm_flags protection bits (the
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 58d3173eb36..a57a43f5ca7 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -349,7 +349,6 @@ struct mm_struct {
unsigned long shared_vm; /* Shared pages (files) */
unsigned long exec_vm; /* VM_EXEC & ~VM_WRITE */
unsigned long stack_vm; /* VM_GROWSUP/DOWN */
- unsigned long reserved_vm; /* VM_RESERVED|VM_IO pages */
unsigned long def_flags;
unsigned long nr_ptes; /* Page table pages */
unsigned long start_code, end_code, start_data, end_data;
diff --git a/kernel/events/core.c b/kernel/events/core.c
index f16f3c58f11..cda3ebd49e8 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3671,7 +3671,7 @@ unlock:
atomic_inc(&event->mmap_count);
mutex_unlock(&event->mmap_mutex);
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &perf_mmap_vmops;
return ret;
diff --git a/mm/ksm.c b/mm/ksm.c
index f9ccb16559e..9638620a753 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1469,8 +1469,7 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
*/
if (*vm_flags & (VM_MERGEABLE | VM_SHARED | VM_MAYSHARE |
VM_PFNMAP | VM_IO | VM_DONTEXPAND |
- VM_RESERVED | VM_HUGETLB |
- VM_NONLINEAR | VM_MIXEDMAP))
+ VM_HUGETLB | VM_NONLINEAR | VM_MIXEDMAP))
return 0; /* just ignore the advice */
#ifdef VM_SAO
diff --git a/mm/memory.c b/mm/memory.c
index 7b1e4feaec0..e09c0481318 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2297,14 +2297,13 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
* rest of the world about it:
* VM_IO tells people not to look at these pages
* (accesses can have side effects).
- * VM_RESERVED is specified all over the place, because
- * in 2.4 it kept swapout's vma scan off this vma; but
- * in 2.6 the LRU scan won't even find its pages, so this
- * flag means no more than count its pages in reserved_vm,
- * and omit it from core dump, even when VM_IO turned off.
* VM_PFNMAP tells the core MM that the base pages are just
* raw PFN mappings, and do not have a "struct page" associated
* with them.
+ * VM_DONTEXPAND
+ * Disable vma merging and expanding with mremap().
+ * VM_DONTDUMP
+ * Omit vma from core dump, even when VM_IO turned off.
*
* There's a horrible special case to handle copy-on-write
* behaviour that some programs depend on. We mark the "original"
@@ -2321,7 +2320,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
if (err)
return -EINVAL;
- vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
BUG_ON(addr >= end);
pfn -= addr >> PAGE_SHIFT;
diff --git a/mm/mlock.c b/mm/mlock.c
index ef726e8aa8e..a948be4b7ba 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -227,7 +227,7 @@ long mlock_vma_pages_range(struct vm_area_struct *vma,
if (vma->vm_flags & (VM_IO | VM_PFNMAP))
goto no_mlock;
- if (!((vma->vm_flags & (VM_DONTEXPAND | VM_RESERVED)) ||
+ if (!((vma->vm_flags & VM_DONTEXPAND) ||
is_vm_hugetlb_page(vma) ||
vma == get_gate_vma(current->mm))) {
diff --git a/mm/mmap.c b/mm/mmap.c
index c1ad2e78ea5..a76042dc806 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -945,8 +945,6 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
mm->exec_vm += pages;
} else if (flags & stack_flags)
mm->stack_vm += pages;
- if (flags & (VM_RESERVED|VM_IO))
- mm->reserved_vm += pages;
}
#endif /* CONFIG_PROC_FS */
diff --git a/mm/nommu.c b/mm/nommu.c
index 9c4a7b63a4d..12e84e69dd0 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1811,7 +1811,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
if (addr != (pfn << PAGE_SHIFT))
return -EINVAL;
- vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
+ vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
EXPORT_SYMBOL(remap_pfn_range);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2bb90b1d241..8de704679bf 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2163,8 +2163,7 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
usize -= PAGE_SIZE;
} while (usize > 0);
- /* Prevent "things" like memory migration? VM_flags need a cleanup... */
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 55af8c5b57e..3a6e8731646 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -485,7 +485,7 @@ static int sel_mmap_policy(struct file *filp, struct vm_area_struct *vma)
return -EACCES;
}
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_ops = &sel_mmap_policy_ops;
return 0;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 20554eff5a2..5e12e5bacbb 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3039,7 +3039,7 @@ static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_status;
area->vm_private_data = substream;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
@@ -3076,7 +3076,7 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file
return -EINVAL;
area->vm_ops = &snd_pcm_vm_ops_control;
area->vm_private_data = substream;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
return 0;
}
#else /* ! coherent mmap */
@@ -3170,7 +3170,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = {
int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *area)
{
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
#ifdef ARCH_HAS_DMA_MMAP_COHERENT
if (!substream->ops->page &&
substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index c4fd3b1d959..d0323a693ba 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -262,7 +262,7 @@ static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
}
area->vm_ops = &usb_stream_hwdep_vm_ops;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
area->vm_private_data = us122l;
atomic_inc(&us122l->mmap_count);
out:
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 04aafb43a13..0b34dbc8f30 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -82,7 +82,7 @@ static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct v
us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
}
area->vm_ops = &us428ctls_vm_ops;
- area->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
area->vm_private_data = hw->private_data;
return 0;
}
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index 8e40b6e67e9..cc56007791e 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -723,7 +723,7 @@ static int snd_usX2Y_hwdep_pcm_mmap(struct snd_hwdep * hw, struct file *filp, st
return -ENODEV;
}
area->vm_ops = &snd_usX2Y_hwdep_pcm_vm_ops;
- area->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
+ area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
area->vm_private_data = hw->private_data;
return 0;
}