Messages in this thread Patch in this message | | | From | Stefano Garzarella <> | Subject | [PATCH v4 4/9] vringh: define the stride used for translation | Date | Fri, 24 Mar 2023 16:36:02 +0100 |
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Define a macro to be reused in the different parts of the code.
Useful for the next patches where we add more arrays to manage also translations with user VA.
Suggested-by: Eugenio Perez Martin <eperezma@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> ---
Notes: v4: - added this patch with the changes extracted from the next patch [Eugenio] - used _STRIDE instead of _SIZE [Eugenio]
drivers/vhost/vringh.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index 0ba3ef809e48..4aee230f7622 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -1141,13 +1141,15 @@ static int iotlb_translate(const struct vringh *vrh, return ret; } +#define IOTLB_IOV_STRIDE 16 + static inline int copy_from_iotlb(const struct vringh *vrh, void *dst, void *src, size_t len) { u64 total_translated = 0; while (total_translated < len) { - struct bio_vec iov[16]; + struct bio_vec iov[IOTLB_IOV_STRIDE]; struct iov_iter iter; u64 translated; int ret; @@ -1180,7 +1182,7 @@ static inline int copy_to_iotlb(const struct vringh *vrh, void *dst, u64 total_translated = 0; while (total_translated < len) { - struct bio_vec iov[16]; + struct bio_vec iov[IOTLB_IOV_STRIDE]; struct iov_iter iter; u64 translated; int ret; -- 2.39.2
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