diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-06-09 10:28:36 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-08-08 22:37:22 -0400 |
| commit | 1ef255e257173f4bc44317ef2076e7e0de688fdf (patch) | |
| tree | 700be64ef5aa70a34f6d8158936214e9694e4245 /net/core | |
| parent | 3cf42da327f26eb4461864dd64812345b37f4fd9 (diff) | |
iov_iter: advancing variants of iov_iter_get_pages{,_alloc}()
Most of the users immediately follow successful iov_iter_get_pages()
with advancing by the amount it had returned.
Provide inline wrappers doing that, convert trivial open-coded
uses of those.
BTW, iov_iter_get_pages() never returns more than it had been asked
to; such checks in cifs ought to be removed someday...
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/datagram.c | 3 | ||||
| -rw-r--r-- | net/core/skmsg.c | 3 |
2 files changed, 2 insertions, 4 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c index f3988ef8e9af..7255531f63ae 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -632,12 +632,11 @@ int __zerocopy_sg_from_iter(struct msghdr *msg, struct sock *sk, if (frag == MAX_SKB_FRAGS) return -EMSGSIZE; - copied = iov_iter_get_pages(from, pages, length, + copied = iov_iter_get_pages2(from, pages, length, MAX_SKB_FRAGS - frag, &start); if (copied < 0) return -EFAULT; - iov_iter_advance(from, copied); length -= copied; truesize = PAGE_ALIGN(copied + start); diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 81627892bdd4..cf3c24c8610d 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -324,14 +324,13 @@ int sk_msg_zerocopy_from_iter(struct sock *sk, struct iov_iter *from, goto out; } - copied = iov_iter_get_pages(from, pages, bytes, maxpages, + copied = iov_iter_get_pages2(from, pages, bytes, maxpages, &offset); if (copied <= 0) { ret = -EFAULT; goto out; } - iov_iter_advance(from, copied); bytes -= copied; msg->sg.size += copied; |