From: Andi Kleen <andi@firstfloor.org>
To: jkosina@suse.cz, linux-kernel@vger.kernel.org
Subject: [PATCH] Use single threaded work queue for hid_compat
Date: Mon, 10 Nov 2008 22:51:50 +0100 [thread overview]
Message-ID: <20081110215150.GA8460@basil.nowhere.org> (raw)
Use single threaded work queue for hid_compat
I doubt HID really needs to scale over multiple CPUs. So only use a
single threaded workqueue for HID_COMPAT. This avoids some excessive
thread use on systems with a larger number of CPUs.
Should still go into 2.6.28 if possible.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
drivers/hid/hid-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.28-rc4-test/drivers/hid/hid-core.c
===================================================================
--- linux-2.6.28-rc4-test.orig/drivers/hid/hid-core.c 2008-11-06 20:26:34.000000000 +0100
+++ linux-2.6.28-rc4-test/drivers/hid/hid-core.c 2008-11-10 22:36:49.000000000 +0100
@@ -1729,7 +1729,7 @@
goto err_bus;
#ifdef CONFIG_HID_COMPAT
- hid_compat_wq = create_workqueue("hid_compat");
+ hid_compat_wq = create_singlethread_workqueue("hid_compat");
if (!hid_compat_wq) {
hidraw_exit();
goto err;
next reply other threads:[~2008-11-10 21:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-10 21:51 Andi Kleen [this message]
2008-11-11 22:41 ` [PATCH] Use single threaded work queue for hid_compat Jiri Kosina
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