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authorChristoph Hellwig <hch@lst.de>2021-11-26 12:58:06 +0100
committerJens Axboe <axboe@kernel.dk>2021-11-29 14:41:29 +0100
commit836b394b633e3d618fa44292290bf3d9a1761e0c (patch)
tree849d5f486053a1f680cf7e57eab51c0dd79aeb4e /block/bfq-iosched.c
parentfork: move copy_io to block/blk-ioc.c (diff)
downloadlinux-836b394b633e3d618fa44292290bf3d9a1761e0c.tar.xz
linux-836b394b633e3d618fa44292290bf3d9a1761e0c.zip
bfq: simplify bfq_bic_lookup
Remove the unused bfqd argument, and hardcode ioc to current->io_context. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211126115817.2087431-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-iosched.c')
-rw-r--r--block/bfq-iosched.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 85554b800970..c990c6409c11 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -433,26 +433,21 @@ static struct bfq_io_cq *icq_to_bic(struct io_cq *icq)
/**
* bfq_bic_lookup - search into @ioc a bic associated to @bfqd.
- * @bfqd: the lookup key.
- * @ioc: the io_context of the process doing I/O.
* @q: the request queue.
*/
-static struct bfq_io_cq *bfq_bic_lookup(struct bfq_data *bfqd,
- struct io_context *ioc,
- struct request_queue *q)
+static struct bfq_io_cq *bfq_bic_lookup(struct request_queue *q)
{
- if (ioc) {
- unsigned long flags;
- struct bfq_io_cq *icq;
+ struct bfq_io_cq *icq;
+ unsigned long flags;
- spin_lock_irqsave(&q->queue_lock, flags);
- icq = icq_to_bic(ioc_lookup_icq(ioc, q));
- spin_unlock_irqrestore(&q->queue_lock, flags);
+ if (!current->io_context)
+ return NULL;
- return icq;
- }
+ spin_lock_irqsave(&q->queue_lock, flags);
+ icq = icq_to_bic(ioc_lookup_icq(current->io_context, q));
+ spin_unlock_irqrestore(&q->queue_lock, flags);
- return NULL;
+ return icq;
}
/*
@@ -2457,7 +2452,7 @@ static bool bfq_bio_merge(struct request_queue *q, struct bio *bio,
* returned by bfq_bic_lookup does not go away before
* bfqd->lock is taken.
*/
- struct bfq_io_cq *bic = bfq_bic_lookup(bfqd, current->io_context, q);
+ struct bfq_io_cq *bic = bfq_bic_lookup(q);
bool ret;
spin_lock_irq(&bfqd->lock);