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skb_splice_bits(): get rid of callback

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since pipe_lock is the outermost now, we don't need to drop/regain
socket locks around the call of splice_to_pipe() from skb_splice_bits(),
which kills the need to have a socket-specific callback; we can just
call splice_to_pipe() and be done with that.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2016-09-17 21:02:10 -04:00
commit 25869262ef
5 changed files with 6 additions and 66 deletions
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16
net/kcm/kcmsock.c
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@ -1462,19 +1462,6 @@ out:
return copied ? : err;
}
static ssize_t kcm_sock_splice(struct sock *sk,
struct pipe_inode_info *pipe,
struct splice_pipe_desc *spd)
{
int ret;
release_sock(sk);
ret = splice_to_pipe(pipe, spd);
lock_sock(sk);
return ret;
}
static ssize_t kcm_splice_read(struct socket *sock, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
@ -1504,8 +1491,7 @@ static ssize_t kcm_splice_read(struct socket *sock, loff_t *ppos,
if (len > rxm->full_len)
len = rxm->full_len;
copied = skb_splice_bits(skb, sk, rxm->offset, pipe, len, flags,
kcm_sock_splice);
copied = skb_splice_bits(skb, sk, rxm->offset, pipe, len, flags);
if (copied < 0) {
err = copied;
goto err_out;