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authorMarkus Metzger <markus.t.metzger@intel.com>2009-04-03 16:43:35 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 13:36:13 +0200
commite2b371f00a6f529f6362654239bdec8dcd510760 (patch)
tree36e47cd9fb949fd72893c2d5ddab489fa55b1869 /arch/x86/include/asm/processor.h
parenta26b89f05d194413c7238e0bea071054f6b5d3c8 (diff)
mm, x86, ptrace, bts: defer branch trace stopping
When a ptraced task is unlinked, we need to stop branch tracing for that task. Since the unlink is called with interrupts disabled, and we need interrupts enabled to stop branch tracing, we defer the work. Collect all branch tracing related stuff in a branch tracing context. Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144550.712401000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r--arch/x86/include/asm/processor.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 34c52370f2f..2483807e06e 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -458,10 +458,6 @@ struct thread_struct {
/* Debug Store context; see include/asm-x86/ds.h; goes into MSR_IA32_DS_AREA */
struct ds_context *ds_ctx;
#endif /* CONFIG_X86_DS */
-#ifdef CONFIG_X86_PTRACE_BTS
-/* the signal to send on a bts buffer overflow */
- unsigned int bts_ovfl_signal;
-#endif /* CONFIG_X86_PTRACE_BTS */
};
static inline unsigned long native_get_debugreg(int regno)