From: Vivek Goyal <vgoyal@redhat.com>
To: linux-kernel@vger.kernel.org, axboe@kernel.dk
Cc: tj@kernel.org, cgroups@vger.kernel.org, vgoyal@redhat.com
Subject: [PATCH 05/15] cfq-iosched: Get rid of unnecessary local variable
Date: Mon, 1 Oct 2012 15:32:46 -0400 [thread overview]
Message-ID: <1349119976-26837-6-git-send-email-vgoyal@redhat.com> (raw)
In-Reply-To: <1349119976-26837-1-git-send-email-vgoyal@redhat.com>
Use of local varibale "n" seems to be unnecessary. Remove it. This brings
it inline with function __cfq_group_st_add(), which is also doing the
similar operation of adding a group to a rb tree.
No functionality change here.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
block/cfq-iosched.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 9657924..573e668 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1655,8 +1655,6 @@ static void cfq_st_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
cfqq->st = st;
p = &st->rb.rb_node;
while (*p) {
- struct rb_node **n;
-
parent = *p;
__cfqq = rb_entry(parent, struct cfq_queue, rb_node);
@@ -1664,13 +1662,11 @@ static void cfq_st_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
* sort by key, that represents service time.
*/
if (time_before(rb_key, __cfqq->rb_key))
- n = &(*p)->rb_left;
+ p = &parent->rb_left;
else {
- n = &(*p)->rb_right;
+ p = &parent->rb_right;
left = 0;
}
-
- p = n;
}
if (left)
--
1.7.7.6
next prev parent reply other threads:[~2012-10-01 19:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-01 19:32 [RFC PATCH 00/15] Use vdisktime based scheduling logic for cfq queues Vivek Goyal
2012-10-01 19:32 ` [PATCH 01/15] cfq-iosched: Properly name all references to IO class Vivek Goyal
2012-10-01 20:51 ` Jeff Moyer
2012-10-03 0:54 ` Tejun Heo
2012-10-03 13:06 ` Vivek Goyal
2012-10-01 19:32 ` [PATCH 02/15] cfq-iosched: More renaming to better represent wl_class and wl_type Vivek Goyal
2012-10-01 20:50 ` Jeff Moyer
2012-10-02 13:25 ` Vivek Goyal
2012-10-01 19:32 ` [PATCH 03/15] cfq-iosched: Rename "service_tree" to "st" Vivek Goyal
2012-10-01 20:52 ` Jeff Moyer
2012-10-02 13:26 ` Vivek Goyal
2012-10-03 0:59 ` Tejun Heo
2012-10-01 19:32 ` [PATCH 04/15] cfq-iosched: Rename few functions related to selecting workload Vivek Goyal
2012-10-01 20:55 ` Jeff Moyer
2012-10-01 19:32 ` Vivek Goyal [this message]
2012-10-01 20:57 ` [PATCH 05/15] cfq-iosched: Get rid of unnecessary local variable Jeff Moyer
2012-10-01 19:32 ` [PATCH 06/15] cfq-iosched: Print sync-noidle information in blktrace messages Vivek Goyal
2012-10-01 21:01 ` Jeff Moyer
2012-10-01 19:32 ` [PATCH 07/15] cfq-iosced: Do the round robin selection of workload type Vivek Goyal
2012-10-01 19:32 ` [PATCH 08/15] cfq-iosched: Make cfq_scale_slice() usable for both queues and groups Vivek Goyal
2012-10-01 19:32 ` [PATCH 09/15] cfq-iosched: make new_cfqq variable bool Vivek Goyal
2012-10-01 19:32 ` [PATCH 10/15] cfq-get-rid-of-slice-offset-and-always-put-new-queue-at-the-end-2 Vivek Goyal
2012-10-01 19:32 ` [PATCH 11/15] cfq-iosched: Remove residual slice logic Vivek Goyal
2012-10-01 19:32 ` [PATCH 12/15] cfq-iosched: put cooperating queue at the front of service tree Vivek Goyal
2012-10-01 19:32 ` [PATCH 13/15] cfq-iosched: Use same scheduling algorithm for groups and queues Vivek Goyal
2012-10-01 19:32 ` [PATCH 14/15] cfq-iosched: Wait for queue to get busy even if this is not last queue in group Vivek Goyal
2012-10-01 19:32 ` [PATCH 15/15] cfq-ioschd: Give boost to higher prio/weight queues Vivek Goyal
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