[patch 5/5] drivers: leave vm_flags alone

[Nick Piggin]

Get rid of some vm_flags twiddling from driver code. The net result of
this + the last 4 patches is that all converted remap_vmalloc_range
memory can support get_user_pages - do we want that? Can't hurt, can it?

Signed-off-by: Nick Piggin <npiggin@xxxxxxx>

Index: linux-2.6/drivers/media/video/em28xx/em28xx-video.c
===================================================================
--- linux-2.6.orig/drivers/media/video/em28xx/em28xx-video.c
+++ linux-2.6/drivers/media/video/em28xx/em28xx-video.c
@@ -620,10 +620,6 @@ static int em28xx_v4l2_mmap(struct file 
 		return -EINVAL;
 	}
 
-	/* 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 */
-
 	if (remap_vmalloc_range(vma, dev->frame[i].bufmem, 0)) {
 		em28xx_videodbg("mmap: remap_vmalloc_range failed\n");
 		mutex_unlock(&dev->fileop_lock);
Index: linux-2.6/drivers/media/video/et61x251/et61x251_core.c
===================================================================
--- linux-2.6.orig/drivers/media/video/et61x251/et61x251_core.c
+++ linux-2.6/drivers/media/video/et61x251/et61x251_core.c
@@ -1499,9 +1499,6 @@ static int et61x251_mmap(struct file* fi
 		return -EINVAL;
 	}
 
-	vma->vm_flags |= VM_IO;
-	vma->vm_flags |= VM_RESERVED;
-
 	if (remap_vmalloc_range(vma, cam->frame[i].bufmem, 0)) {
 		mutex_unlock(&cam->fileop_mutex);
 		return -EAGAIN;
Index: linux-2.6/drivers/media/video/meye.c
===================================================================
--- linux-2.6.orig/drivers/media/video/meye.c
+++ linux-2.6/drivers/media/video/meye.c
@@ -1689,8 +1689,6 @@ static int meye_mmap(struct file *file, 
 	}
 
 	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_private_data = (void *) (offset / gbufsize);
 	meye_vm_open(vma);
 
Index: linux-2.6/drivers/media/video/pwc/pwc-if.c
===================================================================
--- linux-2.6.orig/drivers/media/video/pwc/pwc-if.c
+++ linux-2.6/drivers/media/video/pwc/pwc-if.c
@@ -1567,8 +1567,6 @@ static int pwc_video_mmap(struct file *f
 				vma->vm_start, vma->vm_end - vma->vm_start);
 	pdev = vdev->priv;
 
-	vma->vm_flags |= VM_IO;
-
 	if (remap_vmalloc_range(vma, pdev->image_data, 0))
 		return -EAGAIN;
 
Index: linux-2.6/drivers/media/video/sn9c102/sn9c102_core.c
===================================================================
--- linux-2.6.orig/drivers/media/video/sn9c102/sn9c102_core.c
+++ linux-2.6/drivers/media/video/sn9c102/sn9c102_core.c
@@ -1762,9 +1762,6 @@ static int sn9c102_mmap(struct file* fil
 		return -EINVAL;
 	}
 
-	vma->vm_flags |= VM_IO;
-	vma->vm_flags |= VM_RESERVED;
-
 	if (remap_vmalloc_range(vma, cam->frame[i].bufmem, 0)) {
 		mutex_unlock(&cam->fileop_mutex);
 		return -EAGAIN;
Index: linux-2.6/drivers/media/video/zc0301/zc0301_core.c
===================================================================
--- linux-2.6.orig/drivers/media/video/zc0301/zc0301_core.c
+++ linux-2.6/drivers/media/video/zc0301/zc0301_core.c
@@ -963,9 +963,6 @@ static int zc0301_mmap(struct file* filp
 		return -EINVAL;
 	}
 
-	vma->vm_flags |= VM_IO;
-	vma->vm_flags |= VM_RESERVED;
-
 	if (remap_vmalloc_range(vma, cam->frame[i].bufmem, 0)) {
 		mutex_unlock(&cam->fileop_mutex);
 		return -EAGAIN;
-
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