linux-kernel - [PATCH 29/46] qeth: Remove usage of subsys.rwsem

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Date:	Fri, 27 Apr 2007 11:53:43 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Cornelia Huck <cornelia.huck@...ibm.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 29/46] qeth: Remove usage of subsys.rwsem

From: Cornelia Huck <cornelia.huck@...ibm.com>

the current driver tree contains the removal of subsys.rwsem.
Unfortunately, this breaks qeth. However, it should be no problem to
fix the walking of the devices for /proc/qeth:

No need to take subsys.rwsem during walking the devices,
driver_find_devices() should already suffice.

Signed-off-by: Cornelia Huck <cornelia.huck@...ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/s390/net/qeth_proc.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c
index 81f805c..89d56c8 100644
--- a/drivers/s390/net/qeth_proc.c
+++ b/drivers/s390/net/qeth_proc.c
@@ -37,7 +37,6 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
 	struct device *dev = NULL;
 	loff_t nr = 0;
 
-	down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
 	if (*offset == 0)
 		return SEQ_START_TOKEN;
 	while (1) {
@@ -53,7 +52,6 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
 static void
 qeth_procfile_seq_stop(struct seq_file *s, void* it)
 {
-	up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
 }
 
 static void *
-- 
1.5.1.2

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