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From: Tejun Heo <tj@kernel.org>
To: axboe@kernel.dk
Cc: vgoyal@redhat.com, ctalbott@google.com, rni@google.com,
	linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
	containers@lists.linux-foundation.org, Tejun Heo <tj@kernel.org>
Subject: [PATCH 01/11] cfq: fix build breakage & warnings
Date: Fri, 13 Apr 2012 13:11:25 -0700	[thread overview]
Message-ID: <1334347895-6268-2-git-send-email-tj@kernel.org> (raw)
In-Reply-To: <1334347895-6268-1-git-send-email-tj@kernel.org>

* CFQ_WEIGHT_* defined inside CONFIG_BLK_CGROUP causes cfq-iosched.c
  compile failure when the config is disabled.  Move it outside the
  ifdef block.

* Dummy cfqg_stats_*() definitions were lacking inline modifiers
  causing unused functions warning if !CONFIG_CFQ_GROUP_IOSCHED.  Add
  them.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
---
 block/blk-cgroup.h  |    4 ++--
 block/cfq-iosched.c |   17 ++++++++---------
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index ca0ff7c..64392ac 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -27,13 +27,13 @@ enum blkio_policy_id {
 /* Max limits for throttle policy */
 #define THROTL_IOPS_MAX		UINT_MAX
 
-#ifdef CONFIG_BLK_CGROUP
-
 /* CFQ specific, out here for blkcg->cfq_weight */
 #define CFQ_WEIGHT_MIN		10
 #define CFQ_WEIGHT_MAX		1000
 #define CFQ_WEIGHT_DEFAULT	500
 
+#ifdef CONFIG_BLK_CGROUP
+
 enum blkg_rwstat_type {
 	BLKG_RWSTAT_READ,
 	BLKG_RWSTAT_WRITE,
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index cff8b5b..7a8c3e0 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -17,7 +17,7 @@
 #include "blk.h"
 #include "blk-cgroup.h"
 
-static struct blkio_policy_type blkio_policy_cfq;
+static struct blkio_policy_type blkio_policy_cfq __maybe_unused;
 
 /*
  * tunables
@@ -541,14 +541,13 @@ static void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg)
 
 #else	/* CONFIG_CFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */
 
-static void cfqg_stats_set_start_group_wait_time(struct cfq_group *cfqg,
-						 struct cfq_group *curr_cfqg) { }
-static void cfqg_stats_end_empty_time(struct cfqg_stats *stats) { }
-static void cfqg_stats_update_dequeue(struct cfq_group *cfqg) { }
-static void cfqg_stats_set_start_empty_time(struct cfq_group *cfqg) { }
-static void cfqg_stats_update_idle_time(struct cfq_group *cfqg) { }
-static void cfqg_stats_set_start_idle_time(struct cfq_group *cfqg) { }
-static void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_set_start_group_wait_time(struct cfq_group *cfqg, struct cfq_group *curr_cfqg) { }
+static inline void cfqg_stats_end_empty_time(struct cfqg_stats *stats) { }
+static inline void cfqg_stats_update_dequeue(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_set_start_empty_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_update_idle_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_set_start_idle_time(struct cfq_group *cfqg) { }
+static inline void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { }
 
 #endif	/* CONFIG_CFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */
 
-- 
1.7.7.3


  reply	other threads:[~2012-04-13 20:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-13 20:11 [PATCHSET] block: per-queue policy activation, take#2 Tejun Heo
2012-04-13 20:11 ` Tejun Heo [this message]
2012-04-13 20:11 ` [PATCH 02/11] blkcg: kill blkio_list and replace blkio_list_lock with a mutex Tejun Heo
2012-04-13 20:11 ` [PATCH 03/11] blkcg: use @pol instead of @plid in update_root_blkg_pd() and blkcg_print_blkgs() Tejun Heo
2012-04-13 20:11 ` [PATCH 04/11] blkcg: remove static policy ID enums Tejun Heo
2012-04-13 20:11 ` [PATCH 05/11] blkcg: make blkg_conf_prep() take @pol and return with queue lock held Tejun Heo
2012-04-13 20:11 ` [PATCH 06/11] blkcg: make sure blkg_lookup() returns %NULL if @q is bypassing Tejun Heo
2012-04-13 21:50   ` [PATCH UPDATED " Tejun Heo
2012-04-13 20:11 ` [PATCH 07/11] blkcg: make request_queue bypassing on allocation Tejun Heo
2012-04-13 20:32   ` Vivek Goyal
2012-04-13 20:37     ` Tejun Heo
2012-04-13 20:44       ` Vivek Goyal
2012-04-13 20:47         ` Tejun Heo
2012-04-13 20:55           ` Vivek Goyal
2012-04-13 21:05             ` Tejun Heo
2012-04-13 21:16               ` Tejun Heo
2012-04-13 21:31                 ` Tejun Heo
2012-04-17 12:04                 ` James Bottomley
2012-04-18 21:42                   ` Tejun Heo
2012-04-13 21:33               ` Vivek Goyal
2012-04-13 21:38                 ` Tejun Heo
2012-04-16 12:39                   ` Vivek Goyal
2012-04-13 20:37     ` Vivek Goyal
2012-04-13 20:11 ` [PATCH 08/11] blkcg: add request_queue->root_blkg Tejun Heo
2012-04-13 20:11 ` [PATCH 09/11] blkcg: implement per-queue policy activation Tejun Heo
2012-04-13 20:11 ` [PATCH 10/11] blkcg: drop stuff unused after per-queue policy activation update Tejun Heo
2012-04-13 20:11 ` [PATCH 11/11] blkcg: shoot down blkgs if all policies are deactivated Tejun Heo
2012-04-20  8:09 ` [PATCHSET] block: per-queue policy activation, take#2 Jens Axboe
2012-04-20 12:02   ` Jens Axboe
2012-04-20 17:17     ` Tejun Heo
2012-04-20 19:08       ` Jens Axboe
2012-04-25 18:19         ` Tejun Heo

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