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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-06-23 23:07:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-06-23 23:07:50 -0700 |
| commit | ddb61a57bb6df673986e6476407f97d28b02031f (patch) | |
| tree | 1e7faaddbb0fa96d5fec64e15140a697c0cfd5eb /net/ipv4 | |
| parent | 4b2a8fb3a7f7935f62a7bbdc851789fb7c2da032 (diff) | |
| download | linux-ddb61a57bb6df673986e6476407f97d28b02031f.tar.gz linux-ddb61a57bb6df673986e6476407f97d28b02031f.tar.bz2 linux-ddb61a57bb6df673986e6476407f97d28b02031f.zip | |
[TCP] tcp_read_sock: Allow recv_actor() return return negative error value.
tcp_read_sock() currently assumes that the recv_actor() only returns
number of bytes copied. For network splice receive, we may have to
return an error in some cases. So allow the actor to return a negative
error value.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index cd3c7e95de9e..450f44bb2c8e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1064,7 +1064,11 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, break; } used = recv_actor(desc, skb, offset, len); - if (used <= len) { + if (used < 0) { + if (!copied) + copied = used; + break; + } else if (used <= len) { seq += used; copied += used; offset += used; @@ -1086,7 +1090,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, tcp_rcv_space_adjust(sk); /* Clean up data we have read: This will do ACK frames. */ - if (copied) + if (copied > 0) tcp_cleanup_rbuf(sk, copied); return copied; } |