tree 7ebf0442acf6a533b2a13587abebd70cb3c0ff40
parent cc4e8c3dc95369c08615a4151bce8506b00356d9
author KyongHo Cho <pullip.cho@samsung.com> 1423115562 -0300
committer Mauro Carvalho Chehab <mchehab@osg.samsung.com> 1428490612 -0300

[media] v4l: vb2-memops: use vma slab when vma allocation

The slab for vm_area_struct which is vm_area_cachep is already prepared
for the general use. Instead of kmalloc() for the vma copy for userptr,
allocation from vm_area_cachep is more beneficial.

CC: Hans Verkuil <hans.verkuil@cisco.com>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Cho KyongHo <pullip.cho@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>