[PATCH] x86-64: Fix idle=poll

x86_64 idle=poll might be a little less responsive than it should: unlike
mwait_idle, and unlike i386, its poll_idle left TIF_POLLING_NRFLAG set.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index b19cee6a12e6..e9f35c60f8c6 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -123,6 +123,7 @@ static void poll_idle (void)
                         : :
                         "i" (_TIF_NEED_RESCHED), 
                         "m" (current_thread_info()->flags));
+                clear_thread_flag(TIF_POLLING_NRFLAG);
         } else {
                 set_need_resched();
         }