From: Steffen Klassert <steffen.klassert@secunet.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Herbert Xu <herbert@gondor.hengli.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/8] padata: Dont scale the parallel objects with the cpus
Date: Thu, 29 Apr 2010 14:37:32 +0200 [thread overview]
Message-ID: <20100429123732.GE5275@secunet.com> (raw)
In-Reply-To: <20100429123636.GD5275@secunet.com>
Scaling the maximum number of objects in the parallel
codepath can lead to out of memory problems on bigsmp
machines.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
kernel/padata.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/padata.c b/kernel/padata.c
index 70b5d5e..5b44d0f 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -29,7 +29,7 @@
#include <linux/rcupdate.h>
#define MAX_SEQ_NR INT_MAX - NR_CPUS
-#define MAX_OBJ_NUM 10000 * NR_CPUS
+#define MAX_OBJ_NUM 1000
static int padata_index_to_cpu(struct parallel_data *pd, int cpu_index)
{
--
1.5.6.5
next prev parent reply other threads:[~2010-04-30 18:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-29 12:36 [PATCH 0/8] padata: fixes/cleanups Steffen Klassert
2010-04-29 12:37 ` Steffen Klassert [this message]
2010-04-29 12:40 ` [PATCH 2/8] padata: cpu hotplug code should depend on CONFIG_HOTPLUG_CPU Steffen Klassert
2010-04-29 12:40 ` [PATCH 3/8] padata: Remove superfluous might_sleep Steffen Klassert
2010-04-29 12:41 ` [PATCH 4/8] padata: Initialize the padata queues only for the used cpus Steffen Klassert
2010-04-29 12:42 ` [PATCH 5/8] padata: Use get_online_cpus/put_online_cpus Steffen Klassert
2010-04-29 12:43 ` [PATCH 6/8] padata: Use a timer to handle the reorder queues Steffen Klassert
2010-04-29 23:06 ` Andrew Morton
2010-04-30 11:20 ` Steffen Klassert
2010-05-03 3:38 ` Herbert Xu
2010-04-29 12:44 ` [PATCH 7/8] padata: Flush the padata queues actively Steffen Klassert
2010-04-29 23:11 ` Andrew Morton
2010-04-30 11:24 ` Steffen Klassert
2010-04-29 12:45 ` [PATCH 8/8] padata: Add some code comments Steffen Klassert
2010-04-29 23:13 ` [PATCH 0/8] padata: fixes/cleanups Andrew Morton
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