Steven Rostedt a192cd0413 ftrace: Synchronize variable setting with breakpoints ... When the function tracer starts modifying the code via breakpoints it sets a variable (modifying_ftrace_code) to inform the breakpoint handler to call the ftrace int3 code. But there's no synchronization between setting this code and the handler, thus it is possible for the handler to be called on another CPU before it sees the variable. This will cause a kernel crash as the int3 handler will not know what to do with it. I originally added smp_mb()'s to force the visibility of the variable but H. Peter Anvin suggested that I just make it atomic. [ Added comments as suggested by Peter Zijlstra ] Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2012-05-31 23:12:17 -04:00
..
boot	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 11:16:40 -07:00
configs	x86/kconfig: Remove CONFIG_TR=y from the defconfigs	2012-03-24 08:18:03 +01:00
crypto	crypto: aesni-intel - move more common code to ablk_init_common	2012-05-15 17:25:33 +10:00
ia32	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
include/asm	ftrace: Synchronize variable setting with breakpoints	2012-05-31 23:12:17 -04:00
kernel	ftrace: Synchronize variable setting with breakpoints	2012-05-31 23:12:17 -04:00
kvm	KVM: ensure async PF event wakes up vcpu from halt	2012-05-06 14:56:54 +03:00
lguest	lguest: Make sure interrupt is allocated ok by lguest_setup_irq	2012-01-12 15:44:47 +10:30
lib	Merge branch 'x86-extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 10:44:35 -07:00
math-emu	x86: Rename trap_no to trap_nr in thread_struct	2012-03-13 06:24:09 +01:00
mm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-05-23 17:42:39 -07:00
net	bpf jit: Let the x86 jit handle negative offsets	2012-04-03 18:01:41 -04:00
oprofile	x86: Factor out TIF_IA32 from 32-bit address space	2012-02-20 12:48:46 -08:00
pci	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 11:16:40 -07:00
platform	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 11:16:40 -07:00
power	x86, kvm: Call restore_sched_clock_state() only after %gs is initialized	2012-04-02 13:53:00 +02:00
syscalls	Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-03-29 18:12:23 -07:00
tools	x86, relocs: When printing an error, say relative or absolute	2012-05-18 19:50:02 -07:00
um	Merge branch 'x86-extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 10:44:35 -07:00
vdso	Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-03-29 18:12:23 -07:00
video	x86: fix up files really needing to include module.h	2011-10-31 19:30:36 -04:00
xen	Merge branch 'x86-extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 10:44:35 -07:00
.gitignore	x86/kprobes: Add arch/x86/tools/insn_sanity to .gitignore	2012-01-16 08:21:59 +01:00
Kbuild
Kconfig	Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2012-05-23 17:12:06 -07:00
Kconfig.cpu	x86: Tighten dependencies of CPU_SUP_*_32	2012-03-08 10:57:34 +01:00
Kconfig.debug	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-01-11 19:13:40 -08:00
Makefile	md updates for 3.5	2012-05-23 17:08:40 -07:00
Makefile_32.cpu
Makefile.um	um: fix linker script generation	2012-04-09 13:59:00 -04:00