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Filename Latest commit message Latest commit date
Edward Cree dc503a8ad9 bpf/verifier: track liveness for pruning
State of a register doesn't matter if it wasn't read in reaching an exit;
 a write screens off all reads downstream of it from all explored_states
 upstream of it.
This allows us to prune many more branches; here are some processed insn
 counts for some Cilium programs:
Program                  before  after
bpf_lb_opt_-DLB_L3.o       6515   3361
bpf_lb_opt_-DLB_L4.o       8976   5176
bpf_lb_opt_-DUNKNOWN.o     2960   1137
bpf_lxc_opt_-DDROP_ALL.o  95412  48537
bpf_lxc_opt_-DUNKNOWN.o  141706  78718
bpf_netdev.o              24251  17995
bpf_overlay.o             10999   9385

The runtime is also improved; here are 'time' results in ms:
Program                  before  after
bpf_lb_opt_-DLB_L3.o         24      6
bpf_lb_opt_-DLB_L4.o         26     11
bpf_lb_opt_-DUNKNOWN.o       11      2
bpf_lxc_opt_-DDROP_ALL.o   1288    139
bpf_lxc_opt_-DUNKNOWN.o    1768    234
bpf_netdev.o                 62     31
bpf_overlay.o                15     13

Signed-off-by: Edward Cree <ecree@solarflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-15 16:32:33 -07:00
arch ARM64: dts: rockchip: Enable gmac2phy for rk3328-evb 2017-08-11 14:28:59 -07:00
block blk-mq: don't leak preempt counter/q_usage_counter when allocating rq failed 2017-08-02 08:23:57 -06:00
certs
crypto
Documentation Documentation: net: phy: Add phy-is-integrated binding 2017-08-11 14:28:58 -07:00
drivers s390/qeth: fix using of ref counter for rxip addresses 2017-08-15 10:58:40 -07:00
firmware
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-09 16:28:45 -07:00
include bpf/verifier: track liveness for pruning 2017-08-15 16:32:33 -07:00
init
ipc ipc: add missing container_of()s for randstruct 2017-08-02 17:16:12 -07:00
kernel bpf/verifier: track liveness for pruning 2017-08-15 16:32:33 -07:00
lib bpf: add BPF_J{LT,LE,SLT,SLE} instructions 2017-08-09 16:53:56 -07:00
mm mm: take memory hotplug lock within numa_zonelist_order_handler() 2017-08-02 17:16:11 -07:00
net net: ipv4: add check for l3slave for index returned in IP_PKTINFO 2017-08-13 20:05:13 -07:00
samples bpf: add a test case for syscalls/sys_{enter|exit}_* tracepoints 2017-08-07 14:09:48 -07:00
scripts parse-maintainers: Move matching sections from MAINTAINERS 2017-08-08 11:16:14 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
sound ASoC: Fixes for v4.13 2017-08-02 17:11:45 +02:00
tools selftests: bpf: add check for ip XDP redirect 2017-08-11 14:57:31 -07:00
usr
virt KVM/ARM Fixes for v4.13-rc4 2017-08-03 17:59:58 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-10 12:11:16 -07:00
Makefile Linux 4.13-rc4 2017-08-06 18:44:49 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.