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Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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More iov_iter work from Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2015-02-04 20:46:55 -08:00
parent 9878196578 57dd8a0735
commit f2683b743f
33 changed files with 327 additions and 693 deletions
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14
include/linux/skbuff.h
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@@ -2487,19 +2487,18 @@ static inline int skb_put_padto(struct sk_buff *skb, unsigned int len)
}
static inline int skb_add_data(struct sk_buff *skb,
char __user *from, int copy)
struct iov_iter *from, int copy)
{
const int off = skb->len;
if (skb->ip_summed == CHECKSUM_NONE) {
int err = 0;
__wsum csum = csum_and_copy_from_user(from, skb_put(skb, copy),
copy, 0, &err);
if (!err) {
__wsum csum = 0;
if (csum_and_copy_from_iter(skb_put(skb, copy), copy,
&csum, from) == copy) {
skb->csum = csum_block_add(skb->csum, csum, off);
return 0;
}
} else if (!copy_from_user(skb_put(skb, copy), from, copy))
} else if (copy_from_iter(skb_put(skb, copy), copy, from) == copy)
return 0;
__skb_trim(skb, off);
@@ -2696,8 +2695,7 @@ int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len)
{
/* XXX: stripping const */
return memcpy_fromiovec(data, (struct iovec *)msg->msg_iter.iov, len);
return copy_from_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT;
}
static inline int memcpy_to_msg(struct msghdr *msg, void *data, int len)