- 21 Sep, 2017 40 commits
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Paolo Abeni authored
Since commit 1dced6a8 ("ipv4: Restore accept_local behaviour in fib_validate_source()") a full fib lookup is needed even if the rp_filter is disabled, if accept_local is false - which is the default. What we really need in the above scenario is just checking that the source IP address is not local, and in most case we can do that is a cheaper way looking up the ifaddr hash table. This commit adds a helper for such lookup, and uses it to validate the src address when rp_filter is disabled and no 'local' routes are created by the user space in the relevant namespace. A new ipv4 netns flag is added to account for such routes. We need that to preserve the same behavior we had before this patch. It also drops the checks to bail early from __fib_validate_source, added by the commit 1dced6a8 ("ipv4: Restore accept_local behaviour in fib_validate_source()") they do not give any measurable performance improvement: if we do the lookup with are on a slower path. This improves UDP performances for unconnected sockets when rp_filter is disabled by 5% and also gives small but measurable performance improvement for TCP flood scenarios. v1 -> v2: - use the ifaddr lookup helper in __ip_dev_find(), as suggested by Eric - fall-back to full lookup if custom local routes are present Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Joel Fernandes says: ==================== Add cross-compilation support to eBPF samples These patches fix issues seen when cross-compiling eBPF samples on arm64. Compared to [1], I dropped the controversial inline-asm patch and exploring other options to fix it. However these patches are a step in the right direction and I look forward to getting them into -next and the merge window. Changes since v3: - just a repost with acks [1] https://lkml.org/lkml/2017/8/7/417 ==================== Signed-off-by:
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Joel Fernandes authored
Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
Joel Fernandes <joelaf@google.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Joel Fernandes authored
BPF samples fail to build when cross-compiling for ARM64 because of incorrect pt_regs param selection. This is because clang defines __x86_64__ and bpf_headers thinks we're building for x86. Since clang is building for the BPF target, it shouldn't make assumptions about what target the BPF program is going to run on. To fix this, lets pass ARCH so the header knows which target the BPF program is being compiled for and can use the correct pt_regs code. Acked-by:
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Joel Fernandes authored
When cross compiling, bpf samples use HOSTCC for compiling the non-BPF part of the sample, however what we really want is to use the cross compiler to build for the cross target since that is what will load and run the BPF sample. Detect this and compile samples correctly. Acked-by:
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Joel Fernandes authored
When cross-compiling the bpf sample map_perf_test for aarch64, I find that __NR_getpgrp is undefined. This causes build errors. This syscall is deprecated and requires defining __ARCH_WANT_SYSCALL_DEPRECATED. To avoid having to define that, just use a different syscall (getppid) for the array map stress test. Acked-by:
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David S. Miller authored
Allen Pais says: ==================== net: use setup_timer() helper function. This series uses setup_timer() helper function. The series addresses the files under drivers/net/*. ==================== Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by:Allen Pais <allen.lkml@gmail.com> Signed-off-by:
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Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: -
Allen Pais authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by:
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