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Date: Sat, 13 Sep 2014 11:07:50 +0800
From: Ming Lei <ming.lei@...onical.com>
To: Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org
Cc: Christoph Hellwig <hch@....de>, Ming Lei <ming.lei@...onical.com>
Subject: [PATCH v3 06/10] block: remove blk_init_flush() and its pair
Now mission of the two helpers is over, and just call
blk_alloc_flush_queue() and blk_free_flush_queue() directly.
Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
block/blk-core.c | 5 +++--
block/blk-flush.c | 19 ++-----------------
block/blk-mq.c | 3 ++-
block/blk-sysfs.c | 2 +-
block/blk.h | 4 ++--
5 files changed, 10 insertions(+), 23 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index d278a30..e55a8eb 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -703,7 +703,8 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
if (!q)
return NULL;
- if (blk_init_flush(q))
+ q->fq = blk_alloc_flush_queue(q);
+ if (!q->fq)
return NULL;
if (blk_init_rl(&q->root_rl, q, GFP_KERNEL))
@@ -739,7 +740,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
return q;
fail:
- blk_exit_flush(q);
+ blk_free_flush_queue(q->fq);
return NULL;
}
EXPORT_SYMBOL(blk_init_allocated_queue);
diff --git a/block/blk-flush.c b/block/blk-flush.c
index db269d4..a464b18 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -481,8 +481,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
}
EXPORT_SYMBOL(blkdev_issue_flush);
-static struct blk_flush_queue *blk_alloc_flush_queue(
- struct request_queue *q)
+struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q)
{
struct blk_flush_queue *fq;
int rq_sz = sizeof(struct request);
@@ -513,22 +512,8 @@ static struct blk_flush_queue *blk_alloc_flush_queue(
return NULL;
}
-static void blk_free_flush_queue(struct blk_flush_queue *fq)
+void blk_free_flush_queue(struct blk_flush_queue *fq)
{
kfree(fq->flush_rq);
kfree(fq);
}
-
-int blk_init_flush(struct request_queue *q)
-{
- q->fq = blk_alloc_flush_queue(q);
- if (!q->fq)
- return -ENOMEM;
-
- return 0;
-}
-
-void blk_exit_flush(struct request_queue *q)
-{
- blk_free_flush_queue(q->fq);
-}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index a819af4..beea082 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1844,7 +1844,8 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
blk_mq_add_queue_tag_set(set, q);
- if (blk_init_flush(q))
+ q->fq = blk_alloc_flush_queue(q);
+ if (!q->fq)
goto err_hw_queues;
blk_mq_map_swqueue(q);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 28d3a11..571cd34 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -517,7 +517,7 @@ static void blk_release_queue(struct kobject *kobj)
if (q->queue_tags)
__blk_queue_free_tags(q);
- blk_exit_flush(q);
+ blk_free_flush_queue(q->fq);
if (q->mq_ops)
blk_mq_free_queue(q);
diff --git a/block/blk.h b/block/blk.h
index 2637349..d514e3c 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -39,8 +39,8 @@ static inline void __blk_get_queue(struct request_queue *q)
kobject_get(&q->kobj);
}
-int blk_init_flush(struct request_queue *q);
-void blk_exit_flush(struct request_queue *q);
+struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q);
+void blk_free_flush_queue(struct blk_flush_queue *fq);
int blk_init_rl(struct request_list *rl, struct request_queue *q,
gfp_t gfp_mask);
--
1.7.9.5
--
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