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authorLinus Torvalds <torvalds@linux-foundation.org>2023-04-24 10:29:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-04-24 10:29:28 -0700
commitb9dff2195f8a5847fad801046b26955e05670d31 (patch)
treea5c7ee903db0641eadfea7f2beec6a58c8a4f394 /drivers/vhost
parentd88867a24fa7e9c75b8f86df20d4f40e2fe61e9b (diff)
parent50f9a76ef127367847cf62999c79304e48018cfa (diff)
Merge tag 'iter-ubuf.2-2023-04-21' of git://git.kernel.dk/linux
Pull ITER_UBUF updates from Jens Axboe: "This turns singe vector imports into ITER_UBUF, rather than ITER_IOVEC. The former is more trivial to iterate and advance, and hence a bit more efficient. From some very unscientific testing, ~60% of all iovec imports are single vector" * tag 'iter-ubuf.2-2023-04-21' of git://git.kernel.dk/linux: iov_iter: Mark copy_compat_iovec_from_user() noinline iov_iter: import single vector iovecs as ITER_UBUF iov_iter: convert import_single_range() to ITER_UBUF iov_iter: overlay struct iovec and ubuf/len iov_iter: set nr_segs = 1 for ITER_UBUF iov_iter: remove iov_iter_iovec() iov_iter: add iter_iov_addr() and iter_iov_len() helpers ALSA: pcm: check for user backed iterator, not specific iterator type IB/qib: check for user backed iterator, not specific iterator type IB/hfi1: check for user backed iterator, not specific iterator type iov_iter: add iter_iovec() helper block: ensure bio_alloc_map_data() deals with ITER_UBUF correctly
Diffstat (limited to 'drivers/vhost')
-rw-r--r--drivers/vhost/scsi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 32d0be968103..e68f7d226bc9 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -665,7 +665,7 @@ vhost_scsi_calc_sgls(struct iov_iter *iter, size_t bytes, int max_sgls)
{
int sgl_count = 0;
- if (!iter || !iter->iov) {
+ if (!iter || !iter_iov(iter)) {
pr_err("%s: iter->iov is NULL, but expected bytes: %zu"
" present\n", __func__, bytes);
return -EINVAL;