On 01/18/2016 10:18 PM, Sebastian Andrzej Siewior wrote:
* Mike Galbraith | 2016-01-18 10:08:23 [+0100]:
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -220,14 +220,14 @@ long syscall_trace_enter(struct pt_regs
#define EXIT_TO_USERMODE_LOOP_FLAGS \
(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
- _TIF_NEED_RESCHED | _TIF_USER_RETURN_NOTIFY)
+ _TIF_NEED_RESCHED_MASK | _TIF_USER_RETURN_NOTIFY)
If I read this right, the loop where this define is used
_TIF_ALLWORK_MASK in v4.1 of which _TIF_NEED_RESCHED_MASK was part of.
Adding this will reassmeble the old behaviour.
…
Just a question (sorry if dumb). ARM has _TIF_WORK_MASK defined:
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
_TIF_NOTIFY_RESUME | _TIF_UPROBE)
which is used to calculate loop exit condition in
do_work_pending() (arch/arm/kernel/signal.c).
Should _TIF_WORK_MASK also contain _TIF_NEED_RESCHED_LAZY?
--
regards,
-grygorii
