tcp: Fix recvmsg MSG_PEEK influence of blocking behavior.
authorDavid S. Miller <davem@davemloft.net>
Wed, 5 Nov 2008 11:36:01 +0000 (03:36 -0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 5 Nov 2008 11:36:01 +0000 (03:36 -0800)
commit518a09ef11f8454f4676125d47c3e775b300c6a5
treea22f9f9de58e91d3287bcd21277e9378de49e18f
parentefb9a8c28ca0edd9e2572117105ebad9bbc0c368
tcp: Fix recvmsg MSG_PEEK influence of blocking behavior.

Vito Caputo noticed that tcp_recvmsg() returns immediately from
partial reads when MSG_PEEK is used.  In particular, this means that
SO_RCVLOWAT is not respected.

Simply remove the test.  And this matches the behavior of several
other systems, including BSD.

Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp.c