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From: Dan Carpenter <error27@gmail.com>
To: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>,
	Steven Whitehouse <swhiteho@redhat.com>,
	cluster-devel@redhat.com, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] dlm: cleanup remove unused code
Date: Mon, 22 Mar 2010 12:03:54 +0000	[thread overview]
Message-ID: <20100322120354.GB21571@bicker> (raw)

Smatch complains because "lkb" is never NULL.  Looking at it, the original
code actually adds the new element to the end of the list fine, so we can
just get rid of the if condition.  This code is four years old and no one
has complained so it must work.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 46ffd3e..f162de5 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -732,10 +732,7 @@ static void lkb_add_ordered(struct list_head *new, struct list_head *head,
 		if (lkb->lkb_rqmode < mode)
 			break;
 
-	if (!lkb)
-		list_add_tail(new, head);
-	else
-		__list_add(new, lkb->lkb_statequeue.prev, &lkb->lkb_statequeue);
+	__list_add(new, lkb->lkb_statequeue.prev, &lkb->lkb_statequeue);
 }
 
 /* add/remove lkb to rsb's grant/convert/wait queue */

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <error27@gmail.com>
To: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>,
	Steven Whitehouse <swhiteho@redhat.com>,
	cluster-devel@redhat.com, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] dlm: cleanup remove unused code
Date: Mon, 22 Mar 2010 15:03:54 +0300	[thread overview]
Message-ID: <20100322120354.GB21571@bicker> (raw)

Smatch complains because "lkb" is never NULL.  Looking at it, the original
code actually adds the new element to the end of the list fine, so we can
just get rid of the if condition.  This code is four years old and no one
has complained so it must work.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 46ffd3e..f162de5 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -732,10 +732,7 @@ static void lkb_add_ordered(struct list_head *new, struct list_head *head,
 		if (lkb->lkb_rqmode < mode)
 			break;
 
-	if (!lkb)
-		list_add_tail(new, head);
-	else
-		__list_add(new, lkb->lkb_statequeue.prev, &lkb->lkb_statequeue);
+	__list_add(new, lkb->lkb_statequeue.prev, &lkb->lkb_statequeue);
 }
 
 /* add/remove lkb to rsb's grant/convert/wait queue */

             reply	other threads:[~2010-03-22 12:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-22 12:03 Dan Carpenter [this message]
2010-03-22 12:03 ` [patch] dlm: cleanup remove unused code Dan Carpenter
2010-03-22 13:50 ` [Cluster-devel] " David Teigland
2010-03-22 13:50   ` David Teigland
2010-03-22 13:50   ` David Teigland

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