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authorEric Dumazet <edumazet@google.com>2017-01-09 10:29:27 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-09 17:07:54 -0500
commitb369e7fd41f7cdbe2488cb736ef4f958bb94b5e2 (patch)
treeb37e5e194ed9232bdd2a4539d9630a1f8b5d08ee /include/rdma/ib_verbs.h
parentc22e5c125b7a00fdd177e0caba4f432eb66c8a73 (diff)
tcp: make TCP_INFO more consistent
tcp_get_info() has to lock the socket, so lets lock it for an extended critical section, so that various fields have consistent values. This solves an annoying issue that some applications reported when multiple counters are updated during one particular rx/rx event, and TCP_INFO was called from another cpu. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/rdma/ib_verbs.h')
0 files changed, 0 insertions, 0 deletions
e ACPI/CPPC to enable HWP, and so it runs in HWP mode, exposing this incorrect BIOS configuration. There are several ways to address this problem. First, Linux can also run in legacy P-state mode on this system. As intel_pstate is how Linux enables HWP, booting with "intel_pstate=disable" will run in acpi-cpufreq/ondemand legacy p-state mode. Or second, the "performance" governor can be used with intel_pstate, which will modify HWP.EPP to 0. Or third, starting in 4.10, the /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference attribute in can be updated from "balance_power" to "performance". Or fourth, apply this patch, which fixes the erroneous setting of MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default configuration to function as designed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Cc: 4.6+ <stable@vger.kernel.org> # 4.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/build/feature/test-jvmti.c')