From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCH 3/6] cifs: quit playing games with draining iovecs
Date: Tue, 19 Apr 2016 23:41:36 +0100
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To: Jeff Layton <jlayton@poochiereds.net>
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On Tue, Apr 19, 2016 at 01:53:17PM -0400, Jeff Layton wrote:

> What's the advantage of using iov_iter_bvec over iov_iter_kvec ?

No need to screw with kmap() in the caller; moreover, when it comes to actual
copying it gets away with kmap_atomic() just around the memcpy(), which is
considerably cheaper.