[PATCH tip/core/rcu 05/15] mm/pagemap: Cleanup PREEMPT_COUNT leftovers

* [PATCH tip/core/rcu 05/15] mm/pagemap: Cleanup PREEMPT_COUNT leftovers
       [not found] <20200928233041.GA23230@paulmck-ThinkPad-P72>
@ 2020-09-28 23:30 ` paulmck
  0 siblings, 0 replies; only message in thread
From: paulmck @ 2020-09-28 23:30 UTC (permalink / raw)
  To: rcu
  Cc: linux-kernel, kernel-team, mingo, jiangshanlai, akpm,
	mathieu.desnoyers, josh, tglx, peterz, rostedt, dhowells,
	edumazet, fweisbec, oleg, joel, mhocko, mgorman, torvalds,
	linux-mm, Paul E . McKenney

From: Thomas Gleixner <tglx@linutronix.de>

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: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
[ paulmck: Fix !SMP build error per kernel test robot feedback. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 include/linux/pagemap.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 7de11dc..b3d9d92 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -168,9 +168,7 @@ void release_pages(struct page **pages, int nr);
 static inline int __page_cache_add_speculative(struct page *page, int count)
 {
 #ifdef CONFIG_TINY_RCU
-# ifdef CONFIG_PREEMPT_COUNT
-	VM_BUG_ON(!in_atomic() && !irqs_disabled());
-# endif
+	VM_BUG_ON(preemptible());
 	/*
 	 * Preempt must be disabled here - we rely on rcu_read_lock doing
 	 * this for us.
-- 
2.9.5



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