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virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf

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Remove wrapper functions. This makes the allocation type explicit in
all callers; I used GPF_KERNEL where it seemed obvious, left it at
GFP_ATOMIC otherwise.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Rusty Russell 2012-01-12 15:44:42 +10:30
parent 5dfc17628d
commit f96fde41f7
10 changed files with 44 additions and 58 deletions
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22
drivers/virtio/virtio_ring.c
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@ -167,7 +167,7 @@ static int vring_add_indirect(struct vring_virtqueue *vq,
}
/**
* virtqueue_add_buf_gfp - expose buffer to other end
* virtqueue_add_buf - expose buffer to other end
* @vq: the struct virtqueue we're talking about.
* @sg: the description of the buffer(s).
* @out_num: the number of sg readable by other side
@ -183,12 +183,12 @@ static int vring_add_indirect(struct vring_virtqueue *vq,
* positive return values as "available": indirect buffers mean that
* we can put an entire sg[] array inside a single queue entry.
*/
int virtqueue_add_buf_gfp(struct virtqueue *_vq,
struct scatterlist sg[],
unsigned int out,
unsigned int in,
void *data,
gfp_t gfp)
int virtqueue_add_buf(struct virtqueue *_vq,
struct scatterlist sg[],
unsigned int out,
unsigned int in,
void *data,
gfp_t gfp)
{
struct vring_virtqueue *vq = to_vvq(_vq);
unsigned int i, avail, uninitialized_var(prev);
@ -259,13 +259,13 @@ add_head:
return vq->num_free;
}
EXPORT_SYMBOL_GPL(virtqueue_add_buf_gfp);
EXPORT_SYMBOL_GPL(virtqueue_add_buf);
/**
* virtqueue_kick - update after add_buf
* @vq: the struct virtqueue
*
* After one or more virtqueue_add_buf_gfp calls, invoke this to kick
* After one or more virtqueue_add_buf calls, invoke this to kick
* the other side.
*
* Caller must ensure we don't call this with other virtqueue
@ -341,7 +341,7 @@ static inline bool more_used(const struct vring_virtqueue *vq)
* operations at the same time (except where noted).
*
* Returns NULL if there are no used buffers, or the "data" token
* handed to virtqueue_add_buf_gfp().
* handed to virtqueue_add_buf().
*/
void *virtqueue_get_buf(struct virtqueue *_vq, unsigned int *len)
{
@ -490,7 +490,7 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed);
* virtqueue_detach_unused_buf - detach first unused buffer
* @vq: the struct virtqueue we're talking about.
*
* Returns NULL or the "data" token handed to virtqueue_add_buf_gfp().
* Returns NULL or the "data" token handed to virtqueue_add_buf().
* This is not valid on an active queue; it is useful only for device
* shutdown.
*/