Josh Poimboeuf cfeeed279d x86/dumpstack: Allow preemption in show_stack_log_lvl() and dump_trace() ... show_stack_log_lvl() and dump_trace() are already preemption safe: - If they're running in irq or exception context, preemption is already disabled and the percpu stack pointers can be trusted. - If they're running with preemption enabled, they must be running on the task stack anyway, so it doesn't matter if they're comparing the stack pointer against a percpu stack pointer from this CPU or another one: either way it won't match. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Byungchul Park <byungchul.park@lge.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nilay Vaish <nilayvaish@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/a0ca0b1044eca97d4f0ec7c1619cf80b3b65560d.1473371307.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-09-14 17:23:30 +02:00
..
boot	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2016-08-02 16:37:12 -04:00
configs	arch/defconfig: remove CONFIG_RESOURCE_COUNTERS	2016-05-23 17:04:14 -07:00
crypto	x86, crypto: Restore MODULE_LICENSE() to glue_helper.c so it loads	2016-07-20 09:39:50 +02:00
entry	x86/entry/64: Clean up and document espfix64 stack setup	2016-09-13 20:34:16 +02:00
events	perf/x86: Check perf_callchain_store() error	2016-09-08 08:58:40 +02:00
ia32	mm: remove more IS_ERR_VALUE abuses	2016-05-27 15:57:31 -07:00
include	x86/dumpstack: Add get_stack_pointer() and get_frame_pointer()	2016-09-08 08:58:40 +02:00
kernel	x86/dumpstack: Allow preemption in show_stack_log_lvl() and dump_trace()	2016-09-14 17:23:30 +02:00
kvm	x86: Apply more __ro_after_init and const	2016-08-10 14:55:05 +02:00
lguest	lguest: Read offset of device_cap later	2016-06-10 11:39:09 +02:00
lib	x86/mm/kaslr: Fix -Wformat-security warning	2016-08-11 10:58:12 +02:00
math-emu
mm	x86/mm: Improve stack-overflow #PF handling	2016-09-08 08:47:20 +02:00
net	bpf, x86: add support for constant blinding	2016-05-16 13:49:32 -04:00
oprofile	x86/dumpstack: Remove unnecessary stack pointer arguments	2016-09-08 08:58:40 +02:00
pci	x86: Apply more __ro_after_init and const	2016-08-10 14:55:05 +02:00
platform	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-08-12 14:31:10 -07:00
power	x86/power/64: Use __pa() for physical address computation	2016-08-16 00:39:37 +02:00
purgatory	Add sancov plugin	2016-06-07 22:57:10 +02:00
ras	x86/RAS/AMD: Reduce the number of IPIs when prepping error injection	2016-07-08 11:29:26 +02:00
realmode	x86/boot: Rework reserve_real_mode() to allow multiple tries	2016-08-11 11:15:01 +02:00
tools	x86/insn: Add AVX-512 support to the instruction decoder	2016-07-21 09:37:11 -03:00
um	Merge branch 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2016-08-04 19:37:59 -04:00
video	x86/video: Don't assume all FB devices are PCI devices	2016-03-15 11:08:26 +01:00
xen	kexec: allow kdump with crash_kexec_post_notifiers	2016-08-02 19:35:30 -04:00
.gitignore
Kbuild	perf/x86: Move perf_event.c ............... => x86/events/core.c	2016-02-09 10:23:49 +01:00
Kconfig	ftrace: Remove CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST from config	2016-08-24 12:15:13 +02:00
Kconfig.cpu
Kconfig.debug	Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-15 09:32:27 -07:00
Makefile	kbuild: abort build on bad stack protector flag	2016-07-26 16:19:19 -07:00
Makefile_32.cpu
Makefile.um