diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-11-21 14:07:23 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-21 14:07:23 +0100 |
| commit | 96200591a34f8ecb98481c626125df43a2463b55 (patch) | |
| tree | 314c376b01f254d04f9aaf449b1f9147ad177fa6 /arch/x86/kernel/process.c | |
| parent | 7031281e02bf951a2259849217193fb9d75a9762 (diff) | |
| parent | 68efa37df779b3e04280598e8b5b3a1919b65fee (diff) | |
Merge branch 'tracing/hw-breakpoints' into perf/core
Conflicts:
arch/x86/kernel/kprobes.c
kernel/trace/Makefile
Merge reason: hw-breakpoints perf integration is looking
good in testing and in reviews, plus conflicts
are mounting up - so merge & resolve.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 5284cd2b577..744508e7cfd 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -10,6 +10,7 @@ #include <linux/clockchips.h> #include <linux/random.h> #include <trace/events/power.h> +#include <linux/hw_breakpoint.h> #include <asm/system.h> #include <asm/apic.h> #include <asm/syscalls.h> @@ -17,6 +18,7 @@ #include <asm/uaccess.h> #include <asm/i387.h> #include <asm/ds.h> +#include <asm/debugreg.h> unsigned long idle_halt; EXPORT_SYMBOL(idle_halt); @@ -103,14 +105,7 @@ void flush_thread(void) } #endif - clear_tsk_thread_flag(tsk, TIF_DEBUG); - - tsk->thread.debugreg0 = 0; - tsk->thread.debugreg1 = 0; - tsk->thread.debugreg2 = 0; - tsk->thread.debugreg3 = 0; - tsk->thread.debugreg6 = 0; - tsk->thread.debugreg7 = 0; + flush_ptrace_hw_breakpoint(tsk); memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array)); /* * Forget coprocessor state.. @@ -192,16 +187,6 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p, else if (next->debugctlmsr != prev->debugctlmsr) update_debugctlmsr(next->debugctlmsr); - if (test_tsk_thread_flag(next_p, TIF_DEBUG)) { - set_debugreg(next->debugreg0, 0); - set_debugreg(next->debugreg1, 1); - set_debugreg(next->debugreg2, 2); - set_debugreg(next->debugreg3, 3); - /* no 4 and 5 */ - set_debugreg(next->debugreg6, 6); - set_debugreg(next->debugreg7, 7); - } - if (test_tsk_thread_flag(prev_p, TIF_NOTSC) ^ test_tsk_thread_flag(next_p, TIF_NOTSC)) { /* prev and next are different */ |