From: Jens Axboe Date: Fri, 24 Mar 2023 20:35:49 +0000 (-0600) Subject: iov_iter: convert import_single_range() to ITER_UBUF X-Git-Tag: v6.4-rc1~214^2~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e03ad4ee2783e41afc90cc7848468aef10741c0e;p=thirdparty%2Fkernel%2Flinux.git iov_iter: convert import_single_range() to ITER_UBUF Since we're just importing a single vector, we don't have to turn it into an ITER_IOVEC. Instead turn it into an ITER_UBUF, which is cheaper to iterate. Signed-off-by: Jens Axboe --- diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 87488c4aad3f3..f411bda1171f1 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -1870,9 +1870,7 @@ int import_single_range(int rw, void __user *buf, size_t len, if (unlikely(!access_ok(buf, len))) return -EFAULT; - iov->iov_base = buf; - iov->iov_len = len; - iov_iter_init(i, rw, iov, 1, len); + iov_iter_ubuf(i, rw, buf, len); return 0; } EXPORT_SYMBOL(import_single_range);