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Groups > linux.kernel > #1341179

[PATCH v4 4/5] getcpu_cache: x86 32/64 resume notifier

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Call the getcpu_cache_handle_notify_resume() function on return to
userspace if TIF_NOTIFY_RESUME thread flag is set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Paul Turner <pjt@google.com>
CC: Andrew Hunter <ahh@google.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Andy Lutomirski <luto@amacapital.net>
CC: Andi Kleen <andi@firstfloor.org>
CC: Dave Watson <davejwatson@fb.com>
CC: Chris Lameter <cl@linux.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ben Maurer <bmaurer@fb.com>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
CC: Josh Triplett <josh@joshtriplett.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
---
 arch/x86/entry/common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 0366374..eb6bcae 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -249,6 +249,7 @@ static void exit_to_usermode_loop(struct pt_regs *regs, u32 cached_flags)
 		if (cached_flags & _TIF_NOTIFY_RESUME) {
 			clear_thread_flag(TIF_NOTIFY_RESUME);
 			tracehook_notify_resume(regs);
+			getcpu_cache_handle_notify_resume(current);
 		}
 
 		if (cached_flags & _TIF_USER_RETURN_NOTIFY)
-- 
2.1.4

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[PATCH v4 0/5] getcpu_cache system call for 4.6 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 00:30 +0100
  [PATCH v4 2/5] getcpu_cache: ARM resume notifier Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 00:40 +0100
  [PATCH v4 5/5] getcpu_cache: wire up x86 32/64 system call Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 00:40 +0100
  [PATCH v4 4/5] getcpu_cache: x86 32/64 resume notifier Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 00:40 +0100
  Re: [PATCH v4 0/5] getcpu_cache system call for 4.6 "H. Peter Anvin" <hpa@zytor.com> - 2016-02-24 02:40 +0100
    Re: [PATCH v4 0/5] getcpu_cache system call for 4.6 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 05:10 +0100
      Re: [PATCH v4 0/5] getcpu_cache system call for 4.6 "H. Peter Anvin" <hpa@zytor.com> - 2016-02-24 21:30 +0100
        Re: [PATCH v4 0/5] getcpu_cache system call for 4.6 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 23:40 +0100

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