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Daniel Borkmann 03e69b508b ebpf: add prandom helper for packet sampling 
This work is similar to commit 4cd3675ebf ("filter: added BPF
random opcode") and adds a possibility for packet sampling in eBPF.

Currently, this is only possible in classic BPF and useful to
combine sampling with f.e. packet sockets, possible also with tc.

Example function proto-type looks like:

  u32 (*prandom_u32)(void) = (void *)BPF_FUNC_get_prandom_u32;

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-15 21:57:25 -04:00
..
acpi Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2015-02-19 11:28:36 -08:00
asm-generic OK, this has the big virtio 1.0 implementation, as specified by OASIS. 2015-02-18 09:24:01 -08:00
clocksource
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-02-14 09:47:01 -08:00
drm drm/ttm: device address space != CPU address space 2015-03-05 09:04:39 +10:00
dt-bindings The clock framework changes for 3.20 contain the usual driver additions, 2015-02-21 12:30:30 -08:00
keys
kvm
linux ebpf: add prandom helper for packet sampling 2015-03-15 21:57:25 -04:00
math-emu
media
memory
misc
net Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2015-03-14 14:29:45 -04:00
pcmcia
ras
rdma Revert "IB/core: Add support for extended query device caps" 2015-02-06 00:54:33 -08:00
rxrpc
scsi Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block 2015-02-12 14:13:23 -08:00
soc
sound ALSA: pcm: allow for trigger_tstamp snapshot in .trigger 2015-02-09 16:01:53 +01:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-02-21 13:21:19 -08:00
trace Merge branch 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-02-17 16:12:34 -08:00
uapi ebpf: add prandom helper for packet sampling 2015-03-15 21:57:25 -04:00
video OMAPDSS: fix regression with display sysfs files 2015-02-26 10:23:15 +02:00
xen x86/xen: allow privcmd hypercalls to be preempted 2015-02-23 16:30:24 +00:00
Kbuild