Eric Dumazet e370a72363 af_unix: improve STREAM behavior with fragmented memory ... unix_stream_sendmsg() currently uses order-2 allocations, and we had numerous reports this can fail. The __GFP_REPEAT flag present in sock_alloc_send_pskb() is not helping. This patch extends the work done in commit eb6a24816b ("af_unix: reduce high order page allocations) for datagram sockets. This opens the possibility of zero copy IO (splice() and friends) The trick is to not use skb_pull() anymore in recvmsg() path, and instead add a @consumed field in UNIXCB() to track amount of already read payload in the skb. There is a performance regression for large sends because of extra page allocations that will be addressed in a follow-up patch, allowing sock_alloc_send_pskb() to attempt high order page allocations. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-08-10 01:16:44 -07:00
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acpi	…
asm-generic	…
clocksource	…
crypto	…
drm	drm: fix 64 bit drm fixed point helpers	2013-07-30 17:24:13 -04:00
dt-bindings	Pin control fixes for the v3.11 series:	2013-07-28 18:19:27 -07:00
keys	…
kvm	…
linux	net: igmp: Allow user-space configuration of igmp unsolicited report interval	2013-08-09 11:27:46 -07:00
math-emu	…
media	include: Convert ethernet mac address declarations to use ETH_ALEN	2013-08-02 12:33:54 -07:00
memory	…
misc	…
net	af_unix: improve STREAM behavior with fragmented memory	2013-08-10 01:16:44 -07:00
pcmcia	…
ras	…
rdma	…
rxrpc	…
scsi	…
sound	…
target	…
trace	…
uapi	net: add SNMP counters tracking incoming ECN bits	2013-08-08 22:24:59 -07:00
video	…
xen	…
Kbuild	…