mm: mark most vm_operations_struct const

With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct
structs should be constant.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 26a46f4..b160c0c 100644 (file)
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -277,7 +277,7 @@ static const char *gate_vma_name(struct vm_area_struct *vma)
 {
        return "[vsyscall]";
 }
-static struct vm_operations_struct gate_vma_ops = {
+static const struct vm_operations_struct gate_vma_ops = {
        .name = gate_vma_name,
 };
 static struct vm_area_struct gate_vma = {

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 6607f3c..a39e85f 100644 (file)
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2834,7 +2834,7 @@ static int binder_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return VM_FAULT_SIGBUS;
 }
 
-static struct vm_operations_struct binder_vm_ops = {
+static const struct vm_operations_struct binder_vm_ops = {
        .open = binder_vma_open,
        .close = binder_vma_close,
        .fault = binder_vm_fault,

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 6394547..860062e 100644 (file)
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -125,7 +125,7 @@ static int vgem_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        }
 }
 
-static struct vm_operations_struct vgem_gem_vm_ops = {
+static const struct vm_operations_struct vgem_gem_vm_ops = {
        .fault = vgem_gem_fault,
        .open = drm_gem_vm_open,
        .close = drm_gem_vm_close,

diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
index d04643f..95638df 100644 (file)
--- a/drivers/hsi/clients/cmt_speech.c
+++ b/drivers/hsi/clients/cmt_speech.c
@@ -1110,7 +1110,7 @@ static int cs_char_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return 0;
 }
 
-static struct vm_operations_struct cs_char_vm_ops = {
+static const struct vm_operations_struct cs_char_vm_ops = {
        .fault  = cs_char_vma_fault,
 };
 

diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 7258818..e449e39 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -908,7 +908,7 @@ static int qib_file_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return 0;
 }
 
-static struct vm_operations_struct qib_file_vm_ops = {
+static const struct vm_operations_struct qib_file_vm_ops = {
        .fault = qib_file_vma_fault,
 };
 

diff --git a/drivers/infiniband/hw/qib/qib_mmap.c b/drivers/infiniband/hw/qib/qib_mmap.c
index 146cf29..34927b7 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_mmap.c
+++ b/drivers/infiniband/hw/qib/qib_mmap.c
@@ -75,7 +75,7 @@ static void qib_vma_close(struct vm_area_struct *vma)
        kref_put(&ip->ref, qib_release_mmap_info);
 }
 
-static struct vm_operations_struct qib_vm_ops = {
+static const struct vm_operations_struct qib_vm_ops = {
        .open =     qib_vma_open,
        .close =    qib_vma_close,
 };

diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index f09c5f1..de2474e 100644 (file)
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -872,7 +872,7 @@ static void omap_vout_vm_close(struct vm_area_struct *vma)
        vout->mmap_count--;
 }
 
-static struct vm_operations_struct omap_vout_vm_ops = {
+static const struct vm_operations_struct omap_vout_vm_ops = {
        .open   = omap_vout_vm_open,
        .close  = omap_vout_vm_close,
 };

diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index c49d244..70e62d6 100644 (file)
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -418,7 +418,7 @@ static void genwqe_vma_close(struct vm_area_struct *vma)
        kfree(dma_map);
 }
 
-static struct vm_operations_struct genwqe_vma_ops = {
+static const struct vm_operations_struct genwqe_vma_ops = {
        .open   = genwqe_vma_open,
        .close  = genwqe_vma_close,
 };

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index eec878e..217aa53 100644 (file)
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -997,7 +997,7 @@ static void ion_vm_close(struct vm_area_struct *vma)
        mutex_unlock(&buffer->lock);
 }
 
-static struct vm_operations_struct ion_vma_ops = {
+static const struct vm_operations_struct ion_vma_ops = {
        .open = ion_vm_open,
        .close = ion_vm_close,
        .fault = ion_vm_fault,

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index fd54d09..0e8a451 100644 (file)
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2156,7 +2156,7 @@ static void comedi_vm_close(struct vm_area_struct *area)
        comedi_buf_map_put(bm);
 }
 
-static struct vm_operations_struct comedi_vm_ops = {
+static const struct vm_operations_struct comedi_vm_ops = {
        .open = comedi_vm_open,
        .close = comedi_vm_close,
 };

diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index 4f0cbb5..d3af01c 100644 (file)
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -1091,7 +1091,7 @@ static void mmap_user_close(struct vm_area_struct *vma)
        omapfb_put_mem_region(rg);
 }
 
-static struct vm_operations_struct mmap_user_ops = {
+static const struct vm_operations_struct mmap_user_ops = {
        .open = mmap_user_open,
        .close = mmap_user_close,
 };

diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index e53fe19..696301d 100644 (file)
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -493,7 +493,7 @@ static void gntalloc_vma_close(struct vm_area_struct *vma)
        mutex_unlock(&gref_mutex);
 }
 
-static struct vm_operations_struct gntalloc_vmops = {
+static const struct vm_operations_struct gntalloc_vmops = {
        .open = gntalloc_vma_open,
        .close = gntalloc_vma_close,
 };

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 0dbb222..2ea0b3b 100644 (file)
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -433,7 +433,7 @@ static struct page *gntdev_vma_find_special_page(struct vm_area_struct *vma,
        return map->pages[(addr - map->pages_vm_start) >> PAGE_SHIFT];
 }
 
-static struct vm_operations_struct gntdev_vmops = {
+static const struct vm_operations_struct gntdev_vmops = {
        .open = gntdev_vma_open,
        .close = gntdev_vma_close,
        .find_special_page = gntdev_vma_find_special_page,

diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 5a29616..56cb13f 100644 (file)
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -414,7 +414,7 @@ static int alloc_empty_pages(struct vm_area_struct *vma, int numpgs)
        return 0;
 }
 
-static struct vm_operations_struct privcmd_vm_ops;
+static const struct vm_operations_struct privcmd_vm_ops;
 
 static long privcmd_ioctl_mmap_batch(void __user *udata, int version)
 {
@@ -605,7 +605,7 @@ static int privcmd_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return VM_FAULT_SIGBUS;
 }
 
-static struct vm_operations_struct privcmd_vm_ops = {
+static const struct vm_operations_struct privcmd_vm_ops = {
        .close = privcmd_close,
        .fault = privcmd_fault
 };

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 890c509..a268abf 100644 (file)
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1593,7 +1593,7 @@ out:
        return err;
 }
 
-static struct vm_operations_struct ceph_vmops = {
+static const struct vm_operations_struct ceph_vmops = {
        .fault          = ceph_filemap_fault,
        .page_mkwrite   = ceph_page_mkwrite,
 };

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 3f50cee..e2a6af1 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3216,7 +3216,7 @@ cifs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
        return VM_FAULT_LOCKED;
 }
 
-static struct vm_operations_struct cifs_file_vm_ops = {
+static const struct vm_operations_struct cifs_file_vm_ops = {
        .fault = filemap_fault,
        .map_pages = filemap_map_pages,
        .page_mkwrite = cifs_page_mkwrite,

diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 3d22014..5bed771 100644 (file)
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -472,7 +472,7 @@ static int sel_mmap_policy_fault(struct vm_area_struct *vma,
        return 0;
 }
 
-static struct vm_operations_struct sel_mmap_policy_ops = {
+static const struct vm_operations_struct sel_mmap_policy_ops = {
        .fault = sel_mmap_policy_fault,
        .page_mkwrite = sel_mmap_policy_fault,
 };