Re: [PATCH v4 12/21] xen/gntdev: Prepare to dynamic dma-buf locking specification

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Am 31.08.22 um 17:37 schrieb Dmitry Osipenko:
Prepare gntdev driver to the common dynamic dma-buf locking convention
by starting to use the unlocked versions of dma-buf API functions.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx>

---
  drivers/xen/gntdev-dmabuf.c | 8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/gntdev-dmabuf.c b/drivers/xen/gntdev-dmabuf.c
index 940e5e9e8a54..4440e626b797 100644
--- a/drivers/xen/gntdev-dmabuf.c
+++ b/drivers/xen/gntdev-dmabuf.c
@@ -600,7 +600,7 @@ dmabuf_imp_to_refs(struct gntdev_dmabuf_priv *priv, struct device *dev,
gntdev_dmabuf->u.imp.attach = attach; - sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
+	sgt = dma_buf_map_attachment_unlocked(attach, DMA_BIDIRECTIONAL);
  	if (IS_ERR(sgt)) {
  		ret = ERR_CAST(sgt);
  		goto fail_detach;
@@ -658,7 +658,7 @@ dmabuf_imp_to_refs(struct gntdev_dmabuf_priv *priv, struct device *dev,
  fail_end_access:
  	dmabuf_imp_end_foreign_access(gntdev_dmabuf->u.imp.refs, count);
  fail_unmap:
-	dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);
+	dma_buf_unmap_attachment_unlocked(attach, sgt, DMA_BIDIRECTIONAL);
  fail_detach:
  	dma_buf_detach(dma_buf, attach);
  fail_free_obj:
@@ -708,8 +708,8 @@ static int dmabuf_imp_release(struct gntdev_dmabuf_priv *priv, u32 fd)
  	attach = gntdev_dmabuf->u.imp.attach;
if (gntdev_dmabuf->u.imp.sgt)
-		dma_buf_unmap_attachment(attach, gntdev_dmabuf->u.imp.sgt,
-					 DMA_BIDIRECTIONAL);
+		dma_buf_unmap_attachment_unlocked(attach, gntdev_dmabuf->u.imp.sgt,
+						  DMA_BIDIRECTIONAL);
  	dma_buf = attach->dmabuf;
  	dma_buf_detach(attach->dmabuf, attach);
  	dma_buf_put(dma_buf);




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