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-rw-r--r--drivers/block/cciss.c6
-rw-r--r--drivers/block/cpqarray.c3
-rw-r--r--drivers/block/drbd/drbd_actlog.c2
-rw-r--r--drivers/block/drbd/drbd_bitmap.c1
-rw-r--r--drivers/block/drbd/drbd_int.h14
-rw-r--r--drivers/block/drbd/drbd_main.c33
-rw-r--r--drivers/block/drbd/drbd_receiver.c20
-rw-r--r--drivers/block/drbd/drbd_req.c4
-rw-r--r--drivers/block/drbd/drbd_worker.c1
-rw-r--r--drivers/block/drbd/drbd_wrappers.h18
-rw-r--r--drivers/block/floppy.c1
-rw-r--r--drivers/block/loop.c13
-rw-r--r--drivers/block/pktcdvd.c2
-rw-r--r--drivers/block/umem.c16
14 files changed, 3 insertions, 131 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 9279272b37327..35658f445fca4 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3170,12 +3170,6 @@ static void do_cciss_request(struct request_queue *q)
int sg_index = 0;
int chained = 0;
- /* We call start_io here in case there is a command waiting on the
- * queue that has not been sent.
- */
- if (blk_queue_plugged(q))
- goto startio;
-
queue:
creq = blk_peek_request(q);
if (!creq)
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 946dad4caef37..b2fceb53e8092 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -911,9 +911,6 @@ static void do_ida_request(struct request_queue *q)
struct scatterlist tmp_sg[SG_MAX];
int i, dir, seg;
- if (blk_queue_plugged(q))
- goto startio;
-
queue_next:
creq = blk_peek_request(q);
if (!creq)
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index ba95cba192be8..2096628d6e655 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -689,8 +689,6 @@ void drbd_al_to_on_disk_bm(struct drbd_conf *mdev)
}
}
- drbd_blk_run_queue(bdev_get_queue(mdev->ldev->md_bdev));
-
/* always (try to) flush bitmap to stable storage */
drbd_md_flush(mdev);
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index fd42832f785b8..0645ca829a941 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -840,7 +840,6 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local)
for (i = 0; i < num_pages; i++)
bm_page_io_async(mdev, b, i, rw);
- drbd_blk_run_queue(bdev_get_queue(mdev->ldev->md_bdev));
wait_event(b->bm_io_wait, atomic_read(&b->bm_async_io) == 0);
if (test_bit(BM_MD_IO_ERROR, &b->bm_flags)) {
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 3803a03489372..0b5718e19586d 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -2382,20 +2382,6 @@ static inline int drbd_queue_order_type(struct drbd_conf *mdev)
return QUEUE_ORDERED_NONE;
}
-static inline void drbd_blk_run_queue(struct request_queue *q)
-{
- if (q && q->unplug_fn)
- q->unplug_fn(q);
-}
-
-static inline void drbd_kick_lo(struct drbd_conf *mdev)
-{
- if (get_ldev(mdev)) {
- drbd_blk_run_queue(bdev_get_queue(mdev->ldev->backing_bdev));
- put_ldev(mdev);
- }
-}
-
static inline void drbd_md_flush(struct drbd_conf *mdev)
{
int r;
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 29cd0dc9fe4f8..6049cb85310dc 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2719,35 +2719,6 @@ static int drbd_release(struct gendisk *gd, fmode_t mode)
return 0;
}
-static void drbd_unplug_fn(struct request_queue *q)
-{
- struct drbd_conf *mdev = q->queuedata;
-
- /* unplug FIRST */
- spin_lock_irq(q->queue_lock);
- blk_remove_plug(q);
- spin_unlock_irq(q->queue_lock);
-
- /* only if connected */
- spin_lock_irq(&mdev->req_lock);
- if (mdev->state.pdsk >= D_INCONSISTENT && mdev->state.conn >= C_CONNECTED) {
- D_ASSERT(mdev->state.role == R_PRIMARY);
- if (test_and_clear_bit(UNPLUG_REMOTE, &mdev->flags)) {
- /* add to the data.work queue,
- * unless already queued.
- * XXX this might be a good addition to drbd_queue_work
- * anyways, to detect "double queuing" ... */
- if (list_empty(&mdev->unplug_work.list))
- drbd_queue_work(&mdev->data.work,
- &mdev->unplug_work);
- }
- }
- spin_unlock_irq(&mdev->req_lock);
-
- if (mdev->state.disk >= D_INCONSISTENT)
- drbd_kick_lo(mdev);
-}
-
static void drbd_set_defaults(struct drbd_conf *mdev)
{
/* This way we get a compile error when sync_conf grows,
@@ -3222,9 +3193,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor)
blk_queue_max_segment_size(q, DRBD_MAX_SEGMENT_SIZE);
blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
blk_queue_merge_bvec(q, drbd_merge_bvec);
- q->queue_lock = &mdev->req_lock; /* needed since we use */
- /* plugging on a queue, that actually has no requests! */
- q->unplug_fn = drbd_unplug_fn;
+ q->queue_lock = &mdev->req_lock;
mdev->md_io_page = alloc_page(GFP_KERNEL);
if (!mdev->md_io_page)
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 24487d4fb2029..84132f8bf8a41 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -187,15 +187,6 @@ static struct page *drbd_pp_first_pages_or_try_alloc(struct drbd_conf *mdev, int
return NULL;
}
-/* kick lower level device, if we have more than (arbitrary number)
- * reference counts on it, which typically are locally submitted io
- * requests. don't use unacked_cnt, so we speed up proto A and B, too. */
-static void maybe_kick_lo(struct drbd_conf *mdev)
-{
- if (atomic_read(&mdev->local_cnt) >= mdev->net_conf->unplug_watermark)
- drbd_kick_lo(mdev);
-}
-
static void reclaim_net_ee(struct drbd_conf *mdev, struct list_head *to_be_freed)
{
struct drbd_epoch_entry *e;
@@ -219,7 +210,6 @@ static void drbd_kick_lo_and_reclaim_net(struct drbd_conf *mdev)
LIST_HEAD(reclaimed);
struct drbd_epoch_entry *e, *t;
- maybe_kick_lo(mdev);
spin_lock_irq(&mdev->req_lock);
reclaim_net_ee(mdev, &reclaimed);
spin_unlock_irq(&mdev->req_lock);
@@ -436,8 +426,7 @@ void _drbd_wait_ee_list_empty(struct drbd_conf *mdev, struct list_head *head)
while (!list_empty(head)) {
prepare_to_wait(&mdev->ee_wait, &wait, TASK_UNINTERRUPTIBLE);
spin_unlock_irq(&mdev->req_lock);
- drbd_kick_lo(mdev);
- schedule();
+ io_schedule();
finish_wait(&mdev->ee_wait, &wait);
spin_lock_irq(&mdev->req_lock);
}
@@ -1147,7 +1136,6 @@ next_bio:
drbd_generic_make_request(mdev, fault_type, bio);
} while (bios);
- maybe_kick_lo(mdev);
return 0;
fail:
@@ -1167,9 +1155,6 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
inc_unacked(mdev);
- if (mdev->net_conf->wire_protocol != DRBD_PROT_C)
- drbd_kick_lo(mdev);
-
mdev->current_epoch->barrier_nr = p->barrier;
rv = drbd_may_finish_epoch(mdev, mdev->current_epoch, EV_GOT_BARRIER_NR);
@@ -3556,9 +3541,6 @@ static int receive_skip(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
static int receive_UnplugRemote(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size)
{
- if (mdev->state.disk >= D_INCONSISTENT)
- drbd_kick_lo(mdev);
-
/* Make sure we've acked all the TCP data associated
* with the data requests being unplugged */
drbd_tcp_quickack(mdev->data.socket);
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 11a75d32a2e27..ad3fc6228f279 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -960,10 +960,6 @@ allocate_barrier:
bio_endio(req->private_bio, -EIO);
}
- /* we need to plug ALWAYS since we possibly need to kick lo_dev.
- * we plug after submit, so we won't miss an unplug event */
- drbd_plug_device(mdev);
-
return 0;
fail_conflicting:
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 34f224b018b37..e027446590d37 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -792,7 +792,6 @@ int drbd_resync_finished(struct drbd_conf *mdev)
* queue (or even the read operations for those packets
* is not finished by now). Retry in 100ms. */
- drbd_kick_lo(mdev);
__set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ / 10);
w = kmalloc(sizeof(struct drbd_work), GFP_ATOMIC);
diff --git a/drivers/block/drbd/drbd_wrappers.h b/drivers/block/drbd/drbd_wrappers.h
index defdb5013ea34..53586fa5ae1b0 100644
--- a/drivers/block/drbd/drbd_wrappers.h
+++ b/drivers/block/drbd/drbd_wrappers.h
@@ -45,24 +45,6 @@ static inline void drbd_generic_make_request(struct drbd_conf *mdev,
generic_make_request(bio);
}
-static inline void drbd_plug_device(struct drbd_conf *mdev)
-{
- struct request_queue *q;
- q = bdev_get_queue(mdev->this_bdev);
-
- spin_lock_irq(q->queue_lock);
-
-/* XXX the check on !blk_queue_plugged is redundant,
- * implicitly checked in blk_plug_device */
-
- if (!blk_queue_plugged(q)) {
- blk_plug_device(q);
- del_timer(&q->unplug_timer);
- /* unplugging should not happen automatically... */
- }
- spin_unlock_irq(q->queue_lock);
-}
-
static inline int drbd_crypto_is_hash(struct crypto_tfm *tfm)
{
return (crypto_tfm_alg_type(tfm) & CRYPTO_ALG_TYPE_HASH_MASK)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index b9ba04fc2b34e..271142b9e2cd6 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3837,7 +3837,6 @@ static int __floppy_read_block_0(struct block_device *bdev)
bio.bi_end_io = floppy_rb0_complete;
submit_bio(READ, &bio);
- generic_unplug_device(bdev_get_queue(bdev));
process_fd_request();
wait_for_completion(&complete);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 49e6a545eb63f..01b8e4a87c9f0 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -541,17 +541,6 @@ out:
return 0;
}
-/*
- * kick off io on the underlying address space
- */
-static void loop_unplug(struct request_queue *q)
-{
- struct loop_device *lo = q->queuedata;
-
- queue_flag_clear_unlocked(QUEUE_FLAG_PLUGGED, q);
- blk_run_address_space(lo->lo_backing_file->f_mapping);
-}
-
struct switch_request {
struct file *file;
struct completion wait;
@@ -918,7 +907,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
*/
blk_queue_make_request(lo->lo_queue, loop_make_request);
lo->lo_queue->queuedata = lo;
- lo->lo_queue->unplug_fn = loop_unplug;
if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
blk_queue_flush(lo->lo_queue, REQ_FLUSH);
@@ -1020,7 +1008,6 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
kthread_stop(lo->lo_thread);
- lo->lo_queue->unplug_fn = NULL;
lo->lo_backing_file = NULL;
loop_release_xfer(lo);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 77d70eebb6b21..d20e13f800017 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1606,8 +1606,6 @@ static int kcdrwd(void *foobar)
min_sleep_time = pkt->sleep_time;
}
- generic_unplug_device(bdev_get_queue(pd->bdev));
-
VPRINTK("kcdrwd: sleeping\n");
residue = schedule_timeout(min_sleep_time);
VPRINTK("kcdrwd: wake up\n");
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 8be57151f5d65..653439faa7293 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -241,8 +241,7 @@ static void dump_dmastat(struct cardinfo *card, unsigned int dmastat)
*
* Whenever IO on the active page completes, the Ready page is activated
* and the ex-Active page is clean out and made Ready.
- * Otherwise the Ready page is only activated when it becomes full, or
- * when mm_unplug_device is called via the unplug_io_fn.
+ * Otherwise the Ready page is only activated when it becomes full.
*
* If a request arrives while both pages a full, it is queued, and b_rdev is
* overloaded to record whether it was a read or a write.
@@ -333,17 +332,6 @@ static inline void reset_page(struct mm_page *page)
page->biotail = &page->bio;
}
-static void mm_unplug_device(struct request_queue *q)
-{
- struct cardinfo *card = q->queuedata;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- if (blk_remove_plug(q))
- activate(card);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
/*
* If there is room on Ready page, take
* one bh off list and add it.
@@ -535,7 +523,6 @@ static int mm_make_request(struct request_queue *q, struct bio *bio)
*card->biotail = bio;
bio->bi_next = NULL;
card->biotail = &bio->bi_next;
- blk_plug_device(q);
spin_unlock_irq(&card->lock);
return 0;
@@ -907,7 +894,6 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
blk_queue_make_request(card->queue, mm_make_request);
card->queue->queue_lock = &card->lock;
card->queue->queuedata = card;
- card->queue->unplug_fn = mm_unplug_device;
tasklet_init(&card->tasklet, process_page, (unsigned long)card);
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 12:23:13 +0000