From 2b566fa55b9a94b53217c2818e6c5e5756eeb1a1 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 19 Mar 2012 15:10:59 -0700 Subject: block: remove ioc_*_changed() After the previous patch to cfq, there's no ioc_get_changed() user left. This patch yanks out ioc_{ioprio|cgroup|get}_changed() and all related stuff. Signed-off-by: Tejun Heo Cc: Vivek Goyal Signed-off-by: Jens Axboe --- block/blk-ioc.c | 68 --------------------------------------------------------- 1 file changed, 68 deletions(-) (limited to 'block/blk-ioc.c') diff --git a/block/blk-ioc.c b/block/blk-ioc.c index 439ec21fd787e..3f3dd51a1280a 100644 --- a/block/blk-ioc.c +++ b/block/blk-ioc.c @@ -388,74 +388,6 @@ struct io_cq *ioc_create_icq(struct io_context *ioc, struct request_queue *q, return icq; } -void ioc_set_icq_flags(struct io_context *ioc, unsigned int flags) -{ - struct io_cq *icq; - struct hlist_node *n; - - hlist_for_each_entry(icq, n, &ioc->icq_list, ioc_node) - icq->flags |= flags; -} - -/** - * ioc_ioprio_changed - notify ioprio change - * @ioc: io_context of interest - * @ioprio: new ioprio - * - * @ioc's ioprio has changed to @ioprio. Set %ICQ_IOPRIO_CHANGED for all - * icq's. iosched is responsible for checking the bit and applying it on - * request issue path. - */ -void ioc_ioprio_changed(struct io_context *ioc, int ioprio) -{ - unsigned long flags; - - spin_lock_irqsave(&ioc->lock, flags); - ioc->ioprio = ioprio; - ioc_set_icq_flags(ioc, ICQ_IOPRIO_CHANGED); - spin_unlock_irqrestore(&ioc->lock, flags); -} - -/** - * ioc_cgroup_changed - notify cgroup change - * @ioc: io_context of interest - * - * @ioc's cgroup has changed. Set %ICQ_CGROUP_CHANGED for all icq's. - * iosched is responsible for checking the bit and applying it on request - * issue path. - */ -void ioc_cgroup_changed(struct io_context *ioc) -{ - unsigned long flags; - - spin_lock_irqsave(&ioc->lock, flags); - ioc_set_icq_flags(ioc, ICQ_CGROUP_CHANGED); - spin_unlock_irqrestore(&ioc->lock, flags); -} -EXPORT_SYMBOL(ioc_cgroup_changed); - -/** - * icq_get_changed - fetch and clear icq changed mask - * @icq: icq of interest - * - * Fetch and clear ICQ_*_CHANGED bits from @icq. Grabs and releases - * @icq->ioc->lock. - */ -unsigned icq_get_changed(struct io_cq *icq) -{ - unsigned int changed = 0; - unsigned long flags; - - if (unlikely(icq->flags & ICQ_CHANGED_MASK)) { - spin_lock_irqsave(&icq->ioc->lock, flags); - changed = icq->flags & ICQ_CHANGED_MASK; - icq->flags &= ~ICQ_CHANGED_MASK; - spin_unlock_irqrestore(&icq->ioc->lock, flags); - } - return changed; -} -EXPORT_SYMBOL(icq_get_changed); - static int __init blk_ioc_init(void) { iocontext_cachep = kmem_cache_create("blkdev_ioc", -- cgit v1.2.3