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| author | Sabrina Dubroca <sd@queasysnail.net> | 2015-07-24 18:19:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-27 10:06:53 +0200 |
| commit | dfbafc995304ebb9a9b03f65083e6e9cea143b20 (patch) | |
| tree | db3c54339548ef9e9e9b053e3c5d2f77c1dc560f /mm/huge_memory.c | |
| parent | Merge branch 'r8152-fixes' (diff) | |
| download | linux-dfbafc995304ebb9a9b03f65083e6e9cea143b20.tar.xz linux-dfbafc995304ebb9a9b03f65083e6e9cea143b20.zip | |
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>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions