Sabrina Dubroca dfbafc9953 tcp: fix recv with flags MSG_WAITALL | MSG_PEEK ...

Currently, tcp_recvmsg enters a busy loop in sk_wait_data if called
with flags = MSG_WAITALL | MSG_PEEK.

sk_wait_data waits for sk_receive_queue not empty, but in this case,
the receive queue is not empty, but does not contain any skb that we
can use.

Add a "last skb seen on receive queue" argument to sk_wait_data, so
that it sleeps until the receive queue has new skbs.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=99461
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=18493
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1205258
Reported-by: Enrico Scholz <rh-bugzilla@ensc.de>
Reported-by: Dan Searle <dan@censornet.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2015-07-27 01:06:53 -07:00

..

ccids

dccp: re-enable debug macro

2014-02-16 23:45:00 -05:00

ackvec.c

dccp: replace min/casting by min_t

2014-11-18 15:26:32 -05:00

ackvec.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

ccid.c

net/dccp/ccid.c: add __init to ccid_activate

2014-10-01 18:33:13 -04:00

ccid.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

dccp.h

ipv4: dccp: handle ICMP messages on DCCP_NEW_SYN_RECV request sockets

2015-03-23 16:52:26 -04:00

diag.c

sock_diag: specify info_size per inet protocol

2015-06-15 19:49:22 -07:00

feat.c

dccp: kerneldoc warning fixes

2014-11-18 15:26:31 -05:00

feat.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

input.c

dccp: spelling s/reseting/resetting

2014-11-18 15:26:32 -05:00

ipv4.c

inet: fix possible panic in reqsk_queue_unlink()

2015-04-24 11:39:15 -04:00

ipv6.c

inet: fix possible panic in reqsk_queue_unlink()

2015-04-24 11:39:15 -04:00

ipv6.h

inet: includes a sock_common in request_sock

2013-10-10 00:08:07 -04:00

Kconfig

net/dccp: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:39:34 -08:00

Makefile

dccp: Policy-based packet dequeueing infrastructure

2010-12-07 13:47:12 +01:00

minisocks.c

inet: fix possible panic in reqsk_queue_unlink()

2015-04-24 11:39:15 -04:00

options.c

dccp: remove obsolete code

2014-01-04 20:18:49 -05:00

output.c

ipv4: add a sock pointer to ip_queue_xmit()

2014-04-15 12:58:34 -04:00

probe.c

net: Remove iocb argument from sendmsg and recvmsg

2015-03-02 13:06:31 -05:00

proto.c

tcp: fix recv with flags MSG_WAITALL | MSG_PEEK

2015-07-27 01:06:53 -07:00

qpolicy.c

dccp qpolicy: Parameter checking of cmsg qpolicy parameters

2010-12-07 13:47:12 +01:00

sysctl.c

dccp: make the request_retries minimum is 1

2014-05-14 15:34:16 -04:00

timer.c

inet: get rid of central tcp/dccp listener timer

2015-03-20 12:40:25 -04:00