diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index d0b770391ad..5dea4e8dbc5 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -231,7 +231,7 @@ struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg, * we shouldn't allow anything to go through for a bypassing queue. */ if (unlikely(blk_queue_bypass(q))) - return ERR_PTR(blk_queue_dead(q) ? -EINVAL : -EBUSY); + return ERR_PTR(blk_queue_dying(q) ? -EINVAL : -EBUSY); return __blkg_lookup_create(blkcg, q, NULL); } EXPORT_SYMBOL_GPL(blkg_lookup_create); diff --git a/block/blk-core.c b/block/blk-core.c index ee0e5cafa85..1a95272cca5 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -473,20 +473,20 @@ EXPORT_SYMBOL_GPL(blk_queue_bypass_end); * blk_cleanup_queue - shutdown a request queue * @q: request queue to shutdown * - * Mark @q DEAD, drain all pending requests, destroy and put it. All + * Mark @q DYING, drain all pending requests, destroy and put it. All * future requests will be failed immediately with -ENODEV. */ void blk_cleanup_queue(struct request_queue *q) { spinlock_t *lock = q->queue_lock; - /* mark @q DEAD, no new request or merges will be allowed afterwards */ + /* mark @q DYING, no new request or merges will be allowed afterwards */ mutex_lock(&q->sysfs_lock); - queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q); + queue_flag_set_unlocked(QUEUE_FLAG_DYING, q); spin_lock_irq(lock); /* - * Dead queue is permanently in bypass mode till released. Note + * A dying queue is permanently in bypass mode till released. Note * that, unlike blk_queue_bypass_start(), we aren't performing * synchronize_rcu() after entering bypass mode to avoid the delay * as some drivers create and destroy a lot of queues while @@ -499,11 +499,11 @@ void blk_cleanup_queue(struct request_queue *q) queue_flag_set(QUEUE_FLAG_NOMERGES, q); queue_flag_set(QUEUE_FLAG_NOXMERGES, q); - queue_flag_set(QUEUE_FLAG_DEAD, q); + queue_flag_set(QUEUE_FLAG_DYING, q); spin_unlock_irq(lock); mutex_unlock(&q->sysfs_lock); - /* drain all requests queued before DEAD marking */ + /* drain all requests queued before DYING marking */ blk_drain_queue(q, true); /* @q won't process any more request, flush async actions */ @@ -716,7 +716,7 @@ EXPORT_SYMBOL(blk_init_allocated_queue); bool blk_get_queue(struct request_queue *q) { - if (likely(!blk_queue_dead(q))) { + if (likely(!blk_queue_dying(q))) { __blk_get_queue(q); return true; } @@ -870,7 +870,7 @@ static struct request *__get_request(struct request_list *rl, int rw_flags, const bool is_sync = rw_is_sync(rw_flags) != 0; int may_queue; - if (unlikely(blk_queue_dead(q))) + if (unlikely(blk_queue_dying(q))) return NULL; may_queue = elv_may_queue(q, rw_flags); @@ -1050,7 +1050,7 @@ retry: if (rq) return rq; - if (!(gfp_mask & __GFP_WAIT) || unlikely(blk_queue_dead(q))) { + if (!(gfp_mask & __GFP_WAIT) || unlikely(blk_queue_dying(q))) { blk_put_rl(rl); return NULL; } @@ -1910,7 +1910,7 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq) return -EIO; spin_lock_irqsave(q->queue_lock, flags); - if (unlikely(blk_queue_dead(q))) { + if (unlikely(blk_queue_dying(q))) { spin_unlock_irqrestore(q->queue_lock, flags); return -ENODEV; } @@ -2885,9 +2885,9 @@ static void queue_unplugged(struct request_queue *q, unsigned int depth, trace_block_unplug(q, depth, !from_schedule); /* - * Don't mess with dead queue. + * Don't mess with a dying queue. */ - if (unlikely(blk_queue_dead(q))) { + if (unlikely(blk_queue_dying(q))) { spin_unlock(q->queue_lock); return; } @@ -2996,7 +2996,7 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule) /* * Short-circuit if @q is dead */ - if (unlikely(blk_queue_dead(q))) { + if (unlikely(blk_queue_dying(q))) { __blk_end_request_all(rq, -ENODEV); continue; } diff --git a/block/blk-exec.c b/block/blk-exec.c index 8b6dc5bd4dd..4aec98df7ba 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -60,7 +60,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, spin_lock_irq(q->queue_lock); - if (unlikely(blk_queue_dead(q))) { + if (unlikely(blk_queue_dying(q))) { rq->errors = -ENXIO; if (rq->end_io) rq->end_io(rq, rq->errors); diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index ce620460882..788147797a7 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -466,7 +466,7 @@ queue_attr_show(struct kobject *kobj, struct attribute *attr, char *page) if (!entry->show) return -EIO; mutex_lock(&q->sysfs_lock); - if (blk_queue_dead(q)) { + if (blk_queue_dying(q)) { mutex_unlock(&q->sysfs_lock); return -ENOENT; } @@ -488,7 +488,7 @@ queue_attr_store(struct kobject *kobj, struct attribute *attr, q = container_of(kobj, struct request_queue, kobj); mutex_lock(&q->sysfs_lock); - if (blk_queue_dead(q)) { + if (blk_queue_dying(q)) { mutex_unlock(&q->sysfs_lock); return -ENOENT; } diff --git a/block/blk-throttle.c b/block/blk-throttle.c index a9664fa0b60..31146225f3d 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -302,7 +302,7 @@ static struct throtl_grp *throtl_lookup_create_tg(struct throtl_data *td, /* if %NULL and @q is alive, fall back to root_tg */ if (!IS_ERR(blkg)) tg = blkg_to_tg(blkg); - else if (!blk_queue_dead(q)) + else if (!blk_queue_dying(q)) tg = td_root_tg(td); } diff --git a/block/blk.h b/block/blk.h index ca51543b248..2218a8a7829 100644 --- a/block/blk.h +++ b/block/blk.h @@ -96,7 +96,7 @@ static inline struct request *__elv_next_request(struct request_queue *q) q->flush_queue_delayed = 1; return NULL; } - if (unlikely(blk_queue_dead(q)) || + if (unlikely(blk_queue_dying(q)) || !q->elevator->type->ops.elevator_dispatch_fn(q, 0)) return NULL; } diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index da36a3a81a9..f29a1a9b54d 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1406,7 +1406,7 @@ static int scsi_lld_busy(struct request_queue *q) struct scsi_device *sdev = q->queuedata; struct Scsi_Host *shost; - if (blk_queue_dead(q)) + if (blk_queue_dying(q)) return 0; shost = sdev->host; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1756001210d..aba8246afe7 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -437,7 +437,7 @@ struct request_queue { #define QUEUE_FLAG_STOPPED 2 /* queue is stopped */ #define QUEUE_FLAG_SYNCFULL 3 /* read queue has been filled */ #define QUEUE_FLAG_ASYNCFULL 4 /* write queue has been filled */ -#define QUEUE_FLAG_DEAD 5 /* queue being torn down */ +#define QUEUE_FLAG_DYING 5 /* queue being torn down */ #define QUEUE_FLAG_BYPASS 6 /* act as dumb FIFO queue */ #define QUEUE_FLAG_BIDI 7 /* queue supports bidi requests */ #define QUEUE_FLAG_NOMERGES 8 /* disable merge attempts */ @@ -521,7 +521,7 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q) #define blk_queue_tagged(q) test_bit(QUEUE_FLAG_QUEUED, &(q)->queue_flags) #define blk_queue_stopped(q) test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags) -#define blk_queue_dead(q) test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags) +#define blk_queue_dying(q) test_bit(QUEUE_FLAG_DYING, &(q)->queue_flags) #define blk_queue_bypass(q) test_bit(QUEUE_FLAG_BYPASS, &(q)->queue_flags) #define blk_queue_nomerges(q) test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags) #define blk_queue_noxmerges(q) \