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| author |   KyongHo Cho <pullip.cho@samsung.com> | 2015-02-05 02:52:42 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-08 07:56:52 -0300 |
| commit | 5ed1c328ea077d70e1ebcd5188dc77cdc754df3a (patch) | |
| tree | 7ebf0442acf6a533b2a13587abebd70cb3c0ff40 | |
| parent | [media] rc: img-ir: Add and enable sys clock for img-ir (diff) | |
| download | linux-dev-5ed1c328ea077d70e1ebcd5188dc77cdc754df3a.tar.xz linux-dev-5ed1c328ea077d70e1ebcd5188dc77cdc754df3a.zip | |
[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>
| -rw-r--r-- | drivers/media/v4l2-core/videobuf2-memops.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-memops.c b/drivers/media/v4l2-core/videobuf2-memops.c index 81c1ad8b2cf1..dd06efa667fd 100644 --- a/drivers/media/v4l2-core/videobuf2-memops.c +++ b/drivers/media/v4l2-core/videobuf2-memops.c @@ -37,7 +37,7 @@ struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma) { struct vm_area_struct *vma_copy; - vma_copy = kmalloc(sizeof(*vma_copy), GFP_KERNEL); + vma_copy = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); if (vma_copy == NULL) return NULL; @@ -75,7 +75,7 @@ void vb2_put_vma(struct vm_area_struct *vma) if (vma->vm_file) fput(vma->vm_file); - kfree(vma); + kmem_cache_free(vm_area_cachep, vma); } EXPORT_SYMBOL_GPL(vb2_put_vma); |