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/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index e53fe19..696301d 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -493,7 +493,7 @@
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
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -433,7 +433,7 @@
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
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -414,7 +414,7 @@
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 @@
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
};