| Message ID | 20200914204441.375753691@linutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | preempt: Make preempt count unconditional | expand |
On Mon, Sep 14, 2020 at 10:42:13PM +0200, Thomas Gleixner wrote: > CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be > removed. Cleanup the leftovers before doing so. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: Will Deacon <will@kernel.org> > --- > include/linux/lockdep.h | 6 ++---- > lib/Kconfig.debug | 1 - > 2 files changed, 2 insertions(+), 5 deletions(-) > > --- a/include/linux/lockdep.h > +++ b/include/linux/lockdep.h > @@ -585,16 +585,14 @@ do { \ > > #define lockdep_assert_preemption_enabled() \ > do { \ > - WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \ > - debug_locks && \ > + WARN_ON_ONCE(debug_locks && \ > (preempt_count() != 0 || \ > !raw_cpu_read(hardirqs_enabled))); \ > } while (0) > > #define lockdep_assert_preemption_disabled() \ > do { \ > - WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \ > - debug_locks && \ > + WARN_ON_ONCE(debug_locks && \ > (preempt_count() == 0 && \ > raw_cpu_read(hardirqs_enabled))); \ > } while (0) > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -1161,7 +1161,6 @@ config PROVE_LOCKING > select DEBUG_RWSEMS > select DEBUG_WW_MUTEX_SLOWPATH > select DEBUG_LOCK_ALLOC > - select PREEMPT_COUNT > select TRACE_IRQFLAGS > default n > help Acked-by: Will Deacon <will@kernel.org> Will
--- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -585,16 +585,14 @@ do { \ #define lockdep_assert_preemption_enabled() \ do { \ - WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \ - debug_locks && \ + WARN_ON_ONCE(debug_locks && \ (preempt_count() != 0 || \ !raw_cpu_read(hardirqs_enabled))); \ } while (0) #define lockdep_assert_preemption_disabled() \ do { \ - WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \ - debug_locks && \ + WARN_ON_ONCE(debug_locks && \ (preempt_count() == 0 && \ raw_cpu_read(hardirqs_enabled))); \ } while (0) --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1161,7 +1161,6 @@ config PROVE_LOCKING select DEBUG_RWSEMS select DEBUG_WW_MUTEX_SLOWPATH select DEBUG_LOCK_ALLOC - select PREEMPT_COUNT select TRACE_IRQFLAGS default n help
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be removed. Cleanup the leftovers before doing so. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Will Deacon <will@kernel.org> --- include/linux/lockdep.h | 6 ++---- lib/Kconfig.debug | 1 - 2 files changed, 2 insertions(+), 5 deletions(-)