From: David Fries <David@Fries.net>
To: linux-kernel@vger.kernel.org
Cc: Evgeniy Polyakov <zbr@ioremap.net>,
Marcin Jurkowski <marcin1j@gmail.com>,
Josh Boyer <jwboyer@gmail.com>,
Sven Geggus <lists@fuchsschwanzdomain.de>
Subject: [PATCH 03/14] w1: Only wake up the search process if it is going to be searching
Date: Sun, 29 Dec 2013 00:45:45 -0600 [thread overview]
Message-ID: <1388299556-12669-4-git-send-email-David@Fries.net> (raw)
In-Reply-To: <1388299556-12669-1-git-send-email-David@Fries.net>
It's valid to set the search count to 0 to stop searching, so don't
wake up the search thread to not search.
Signed-off-by: David Fries <David@Fries.net>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
---
drivers/w1/w1.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 67b6d5f..92766a9 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -243,7 +243,9 @@ static ssize_t w1_master_attribute_store_search(struct device * dev,
mutex_lock(&md->mutex);
md->search_count = tmp;
mutex_unlock(&md->mutex);
- wake_up_process(md->thread);
+ /* Only wake if it is going to be searching. */
+ if (tmp)
+ wake_up_process(md->thread);
return count;
}
--
1.7.10.4
next prev parent reply other threads:[~2013-12-29 6:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-29 6:45 [PATCH 00/14] w1: async netlink, search, fixes, and improvements David Fries
2013-12-29 6:45 ` [PATCH 01/14] w1: fix w1_send_slave dropping a slave id David Fries
2013-12-29 6:45 ` [PATCH 02/14] w1: fixup search to support abort from netlink David Fries
2013-12-29 6:45 ` David Fries [this message]
2013-12-29 6:45 ` [PATCH 04/14] w1: increase w1_max_slave_count, allow write access David Fries
2013-12-29 6:45 ` [PATCH 05/14] w1: continue slave search where previous left off David Fries
2013-12-29 6:45 ` [PATCH 06/14] w1: new netlink commands, add/remove/list slaves David Fries
2013-12-29 6:45 ` [PATCH 07/14] w1: process w1 netlink commands in w1_process thread David Fries
2013-12-29 6:45 ` [PATCH 08/14] connector: add portid to unicast in addition to broadcasting David Fries
2013-12-29 6:45 ` [PATCH 09/14] w1: reply only to the requester portid David Fries
2013-12-29 6:45 ` [PATCH 10/14] w1: ds2490 reduce magic numbers David Fries
2013-12-29 6:45 ` [PATCH 11/14] w1: ds2490 USB setup fixes David Fries
2013-12-29 6:45 ` [PATCH 12/14] w1: ds2490 fix and enable hardware search David Fries
2013-12-29 6:45 ` [PATCH 13/14] w1: use family_data instead of rom in w1_slave David Fries
2013-12-29 6:45 ` [PATCH 14/14] w1: format for DocBook and fixes David Fries
2013-12-29 21:26 ` [PATCH 00/14] w1: async netlink, search, fixes, and improvements Evgeniy Polyakov
2014-01-15 4:52 ` [PATCH 16/16] hold bus_mutex in netlink and search David Fries
2014-01-15 20:58 ` Evgeniy Polyakov
2014-01-15 21:10 ` David Fries
2014-01-16 2:33 ` GregKH
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