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From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, peterz@infradead.org, fweisbec@gmail.com,
	jiangshanlai@gmail.com, josh@joshtriplett.org,
	rostedt@goodmis.org, oleg@redhat.com, dhowells@redhat.com,
	edumazet@google.com, mathieu.desnoyers@efficios.com,
	dipankar@in.ibm.com, joel@joelfernandes.org,
	Paul Mackerras <paulus@samba.org>,
	akpm@linux-foundation.org,
	"Paul E. McKenney" <paulmck@linux.ibm.com>,
	linuxppc-dev@lists.ozlabs.org, mingo@kernel.org
Subject: [PATCH tip/core/rcu 08/41] powerpc: Convert hugepd_free() to use call_rcu()
Date: Sun, 11 Nov 2018 11:43:37 -0800	[thread overview]
Message-ID: <20181111194410.6368-8-paulmck@linux.ibm.com> (raw)
In-Reply-To: <20181111194104.GA4787@linux.ibm.com>

Now that call_rcu()'s callback is not invoked until after all
preempt-disable regions of code have completed (in addition to explicitly
marked RCU read-side critical sections), call_rcu() can be used in place
of call_rcu_sched().  This commit therefore makes that change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: <linuxppc-dev@lists.ozlabs.org>
---
 arch/powerpc/mm/hugetlbpage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8cf035e68378..4c01e9a01a74 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -289,7 +289,7 @@ static void hugepd_free(struct mmu_gather *tlb, void *hugepte)
 
 	(*batchp)->ptes[(*batchp)->index++] = hugepte;
 	if ((*batchp)->index == HUGEPD_FREELIST_SIZE) {
-		call_rcu_sched(&(*batchp)->rcu, hugepd_free_rcu_callback);
+		call_rcu(&(*batchp)->rcu, hugepd_free_rcu_callback);
 		*batchp = NULL;
 	}
 	put_cpu_var(hugepd_freelist_cur);
-- 
2.17.1


           reply	other threads:[~2018-11-11 19:47 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20181111194104.GA4787@linux.ibm.com>]

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