linux-kernel - [tip:cpus4096] cpumask: remove cpumask allocation from idle

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Message-ID: <tip-8c083f081d0014057901c68a0a3e0f8ca7ac8d23@git.kernel.org>
Date:	Thu, 19 Mar 2009 13:03:25 GMT
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	rusty@...tcorp.com.au, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:cpus4096] cpumask: remove cpumask allocation from idle_balance, fix

Commit-ID:  8c083f081d0014057901c68a0a3e0f8ca7ac8d23
Gitweb:     http://git.kernel.org/tip/8c083f081d0014057901c68a0a3e0f8ca7ac8d23
Author:     Rusty Russell <rusty@...tcorp.com.au>
AuthorDate: Thu, 19 Mar 2009 15:22:20 +1030
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 19 Mar 2009 13:49:44 +0100

cpumask: remove cpumask allocation from idle_balance, fix

Impact: fix boot crash

Fix typo in the size calculation.

Reported-by: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
LKML-Reference: <alpine.DEB.2.00.0903181729360.31583@...dalf.stny.rr.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 48862d4..11dd527 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8297,7 +8297,7 @@ void __init sched_init(void)
 	alloc_size *= 2;
 #endif
 #ifdef CONFIG_CPUMASK_OFFSTACK
-	alloc_size *= num_possible_cpus() * cpumask_size();
+	alloc_size += num_possible_cpus() * cpumask_size();
 #endif
 	/*
 	 * As sched_init() is called before page_alloc is setup,
--
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