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/linux/Documentation/locking/
H A Dpreempt-locking.rst35 protect these situations by disabling preemption around them.
72 Data protection under preemption is achieved by disabling preemption for the
93 disabling preemption - any cond_resched() or cond_resched_lock() might trigger
95 reschedule. So use this implicit preemption-disabling property only if you
125 Preventing preemption using interrupt disabling
132 in doubt, rely on locking or explicit preemption disabling.
134 Note in 2.5 interrupt disabling is now only per-CPU (e.g. local).
H A Dlocktypes.rst59 preemption and interrupt disabling primitives. Contrary to other locking
60 mechanisms, disabling preemption or interrupts are pure CPU local
162 by disabling preemption or interrupts.
165 interrupt disabling and enabling primitives:
200 local_lock should be used in situations where disabling preemption or
216 core code, low-level interrupt handling and places where disabling
253 avoid migration by disabling preemption. PREEMPT_RT kernels instead
415 interrupt disabling and locking must remain separate, PREEMPT_RT offers a
465 On a non-PREEMPT_RT kernel this protects against reentrancy by disabling
/linux/tools/power/cpupower/man/
H A Dcpupower-idle-set.111 sleep state, specific options offered by the kernel. One example is disabling
32 Cpuidle Governors Policy on Disabling Sleep States
45 example, it is not coherent, i.e. if one is disabling a light state,
50 Disabling the Lightest Sleep State may not have any Affect
/linux/tools/testing/selftests/ftrace/test.d/ftrace/
H A Dfunc_traceonoff_triggers.tc9 # Ftrace allows to add triggers to functions, such as enabling or disabling
10 # tracing, enabling or disabling trace events, or recording a stack trace
13 # This test is designed to test enabling and disabling tracing triggers
23 echo "Testing function probes with enabling disabling tracing:"
H A Dfunc_event_triggers.tc9 # Ftrace allows to add triggers to functions, such as enabling or disabling
10 # tracing, enabling or disabling trace events, or recording a stack trace
/linux/include/drm/
H A Ddrm_vblank.h87 * &drm_vblank_crtc.disable_timer waits before disabling.
95 * for the exact semantics of immediate vblank disabling.
126 * @disable_timer: Disable timer for the delayed vblank disabling
127 * hysteresis logic. Vblank disabling is controlled through
234 * avoid double-disabling and hence corrupting saved state. Needed by
236 * disabling functions multiple times.
/linux/Documentation/devicetree/bindings/powerpc/fsl/
H A Dpmc.txt41 supports disabling and resuming devices at any time.
46 This sleep controller only supports disabling devices during system
53 disabling. This sleep controller does not support configuring devices
/linux/Documentation/admin-guide/hw-vuln/
H A Dl1tf.rst238 scenario. Disabling SMT might be a viable alternative for particular
279 completely. Disabling SMT can have a significant performance impact, but
281 The impact of disabling SMT needs also to be weighted against the impact
348 5. Disabling EPT
351 Disabling EPT for virtual machines provides full mitigation for L1TF even
353 managed and sanitized by the hypervisor. Though disabling EPT has a
360 address the performance impact of disabling SMT or EPT.
531 - Disabling SMT:
533 Disabling SMT and enforcing the L1D flushing provides the maximum
543 - Disabling EPT:
[all …]
/linux/arch/mips/pci/
H A Dfixup-sb1250.c49 dev_dbg(&dev->dev, "not disabling DAC for device"); in sb1250_bus_dma_limit()
54 dev_dbg(&dev->dev, "not disabling DAC for [bus %02x-%02x]", in sb1250_bus_dma_limit()
57 dev_dbg(&dev->dev, "disabling DAC for device"); in sb1250_bus_dma_limit()
/linux/arch/riscv/
H A DKconfig.errata7 All Andes errata Kconfig depend on this Kconfig. Disabling
28 All SiFive errata Kconfig depend on this Kconfig. Disabling
79 All T-HEAD errata Kconfig depend on this Kconfig. Disabling
/linux/drivers/platform/x86/intel/
H A Dsmartconnect.c9 MODULE_DESCRIPTION("Intel Smart Connect disabling driver");
22 dev_info(&acpi->dev, "Disabling Intel Smart Connect\n"); in smartconnect_acpi_init()
/linux/Documentation/ABI/removed/
H A Dsysfs-selinux-disable14 The preferred method of disabling SELinux is via the "selinux=0" boot
23 and only one of the major distributions, Fedora, supports disabling
/linux/drivers/thermal/qcom/
H A DKconfig8 up in Sysfs as a thermal zone with multiple trip points. Disabling the
9 thermal zone device via the mode file results in disabling the sensor.
/linux/tools/power/cpupower/bindings/python/
H A Dtest_raw_pylibcpupower.py28 print(f"Disabling is not supported by the kernel")
47 print(f"Disabling is not supported by kernel")
/linux/Documentation/tools/rtla/
H A Drtla-hwnoise.rst21 running with *interrupts disabled*. By disabling interrupts, and the scheduling
79 For example, by disabling hyper-threading to remove the hardware noise,
80 and disabling the TSC watchdog to remove the NMI (it is possible to identify
/linux/tools/tracing/rtla/src/
H A Dtrace.c47 err_msg("Oops, error disabling tracer\n"); in disable_tracer()
342 debug_msg("Disabling %s:%s filter %s\n", tevent->system, in trace_event_disable_filter()
350 err_msg("Error disabling %s:%s filter %s\n", tevent->system, in trace_event_disable_filter()
420 debug_msg("Disabling %s:%s trigger %s\n", tevent->system, in trace_event_disable_trigger()
430 err_msg("Error disabling %s:%s trigger %s\n", tevent->system, in trace_event_disable_trigger()
446 debug_msg("Disabling event %s:%s\n", tevent->system, tevent->event ? : "*"); in trace_events_disable()
/linux/arch/arm/include/asm/
H A DbL_switcher.h26 * Register here to be notified about runtime enabling/disabling of
44 * Use these functions to temporarily prevent enabling/disabling of
/linux/Documentation/arch/arm64/
H A Dpointer-authentication.rst111 Enabling and disabling keys
141 It is recommended to avoid disabling the IA key, as this has higher performance
142 overhead than disabling any of the other keys.
/linux/drivers/media/
H A DKconfig34 user needs, and disabling core support for unused APIs.
87 support both analog and digital TV. Disabling this option
113 support radio reception. Disabling this option will
/linux/drivers/bus/
H A Darm-cci.c124 * Code disabling CCI cpu ports runs with D-cache invalidated
127 * avoid one more data access while disabling the CCI port.
188 * Port index look-up speeds up the function disabling ports by CPU, in cci_ace_init_ports()
256 * Disabling a CCI port for a CPU implies disabling the CCI port
257 * controlling that CPU cluster. Code disabling CPU CCI ports
/linux/arch/powerpc/platforms/powermac/
H A Dcache.S103 /* When disabling L2, code must be in L1 */
137 /* When disabling L2, code must be in L1 */
276 /* When disabling/locking L2, code must be in L1 */
297 /* When disabling L2, code must be in L1 */
/linux/tools/testing/selftests/net/forwarding/
H A Dbridge_locked_port.sh303 check_err $? "Regular FDB entry on first port was flushed after disabling MAB"
306 check_err $? "Regular FDB entry on second port was flushed after disabling MAB"
309 check_fail $? "Locked FDB entry on first port was not flushed after disabling MAB"
312 check_err $? "Locked FDB entry on second port was flushed after disabling MAB"
/linux/Documentation/networking/device_drivers/ethernet/chelsio/
H A Dcxgb.rst55 After disabling adaptive-rx, the timer latency value will be set to 50us.
56 You may set the timer latency after disabling adaptive-rx::
64 You may also provide a timer latency value while disabling adaptive-rx::
125 Disabling TCP timestamp::
129 Disabling SACK::
/linux/arch/x86/platform/olpc/
H A Dolpc_ofw.c34 printk(KERN_ERR "failed to remap OFW's pgd - disabling OFW!\n"); in setup_olpc_ofw_pgd()
105 printk(KERN_ERR "OFW detected, but cif has invalid address 0x%lx - disabling.\n", in olpc_ofw_detect()
/linux/include/linux/platform_data/
H A Dmmc-omap.h89 /* Call back before enabling / disabling regulators */
92 /* Call back after enabling / disabling regulators */

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