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Commit b0d78ee8 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.dk/linux-block 

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: don't kick empty queue in blk_drain_queue()
  block/swim3: Locking fixes
  loop: Fix discard_alignment default setting
  cfq-iosched: fix cfq_cic_link() race confition
  cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails
  cciss: fix flush cache transfer length
  cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler
  loop: fix loop block driver discard and encryption comment
  block: initialize request_queue's numa node during
parents 6f12d2ee 4eabc941

block/blk-core.c

+11 −12
Original line number Diff line number Diff line
@@ -366,6 +366,13 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) 
		if (drain_all)

			blk_throtl_drain(q);



		/*

		 * This function might be called on a queue which failed

		 * driver init after queue creation.  Some drivers

		 * (e.g. fd) get unhappy in such cases.  Kick queue iff

		 * dispatch queue has something on it.

		 */

		if (!list_empty(&q->queue_head))

			__blk_run_queue(q);



		if (drain_all)
@@ -467,6 +474,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) 
	q->backing_dev_info.state = 0;

	q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;

	q->backing_dev_info.name = "block";

	q->node = node_id;



	err = bdi_init(&q->backing_dev_info);

	if (err) {
@@ -551,7 +559,7 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) 
	if (!uninit_q)

		return NULL;



	q = blk_init_allocated_queue_node(uninit_q, rfn, lock, node_id);

	q = blk_init_allocated_queue(uninit_q, rfn, lock);

	if (!q)

		blk_cleanup_queue(uninit_q);
@@ -562,19 +570,10 @@ EXPORT_SYMBOL(blk_init_queue_node); 
struct request_queue *

blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,

			 spinlock_t *lock)

{

	return blk_init_allocated_queue_node(q, rfn, lock, -1);

}

EXPORT_SYMBOL(blk_init_allocated_queue);



struct request_queue *

blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn,

			      spinlock_t *lock, int node_id)

{

	if (!q)

		return NULL;



	q->node = node_id;

	if (blk_init_free_list(q))

		return NULL;
@@ -604,7 +603,7 @@ blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn, 


	return NULL;

}

EXPORT_SYMBOL(blk_init_allocated_queue_node);

EXPORT_SYMBOL(blk_init_allocated_queue);



int blk_get_queue(struct request_queue *q)

{

block/cfq-iosched.c

+14 −2
Original line number Diff line number Diff line
@@ -3184,7 +3184,7 @@ static int cfq_cic_link(struct cfq_data *cfqd, struct io_context *ioc, 
		}

	}



	if (ret)

	if (ret && ret != -EEXIST)

		printk(KERN_ERR "cfq: cic link failed!\n");



	return ret;
@@ -3200,6 +3200,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) 
{

	struct io_context *ioc = NULL;

	struct cfq_io_context *cic;

	int ret;



	might_sleep_if(gfp_mask & __GFP_WAIT);
@@ -3207,6 +3208,7 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) 
	if (!ioc)

		return NULL;



retry:

	cic = cfq_cic_lookup(cfqd, ioc);

	if (cic)

		goto out;
@@ -3215,7 +3217,12 @@ cfq_get_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) 
	if (cic == NULL)

		goto err;



	if (cfq_cic_link(cfqd, ioc, cic, gfp_mask))

	ret = cfq_cic_link(cfqd, ioc, cic, gfp_mask);

	if (ret == -EEXIST) {

		/* someone has linked cic to ioc already */

		cfq_cic_free(cic);

		goto retry;

	} else if (ret)

		goto err_free;



out:
@@ -4036,6 +4043,11 @@ static void *cfq_init_queue(struct request_queue *q) 


	if (blkio_alloc_blkg_stats(&cfqg->blkg)) {

		kfree(cfqg);



		spin_lock(&cic_index_lock);

		ida_remove(&cic_index_ida, cfqd->cic_index);

		spin_unlock(&cic_index_lock);



		kfree(cfqd);

		return NULL;

	}

drivers/block/cciss.c

+4 −2
Original line number Diff line number Diff line
@@ -2601,6 +2601,8 @@ static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff, 
			c->Request.Timeout = 0;

			c->Request.CDB[0] = BMIC_WRITE;

			c->Request.CDB[6] = BMIC_CACHE_FLUSH;

			c->Request.CDB[7] = (size >> 8) & 0xFF;

			c->Request.CDB[8] = size & 0xFF;

			break;

		case TEST_UNIT_READY:

			c->Request.CDBLen = 6;
@@ -4880,7 +4882,7 @@ static int cciss_request_irq(ctlr_info_t *h, 
{

	if (h->msix_vector || h->msi_vector) {

		if (!request_irq(h->intr[h->intr_mode], msixhandler,

				IRQF_DISABLED, h->devname, h))

				0, h->devname, h))

			return 0;

		dev_err(&h->pdev->dev, "Unable to get msi irq %d"

			" for %s\n", h->intr[h->intr_mode],
@@ -4889,7 +4891,7 @@ static int cciss_request_irq(ctlr_info_t *h, 
	}



	if (!request_irq(h->intr[h->intr_mode], intxhandler,

			IRQF_DISABLED, h->devname, h))

			IRQF_SHARED, h->devname, h))

		return 0;

	dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n",

		h->intr[h->intr_mode], h->devname);

drivers/block/loop.c

+2 −2
Original line number Diff line number Diff line
@@ -422,7 +422,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio) 


		/*

		 * We use punch hole to reclaim the free space used by the

		 * image a.k.a. discard. However we do support discard if

		 * image a.k.a. discard. However we do not support discard if

		 * encryption is enabled, because it may give an attacker

		 * useful information.

		 */
@@ -797,7 +797,7 @@ static void loop_config_discard(struct loop_device *lo) 
	}



	q->limits.discard_granularity = inode->i_sb->s_blocksize;

	q->limits.discard_alignment = inode->i_sb->s_blocksize;

	q->limits.discard_alignment = 0;

	q->limits.max_discard_sectors = UINT_MAX >> 9;

	q->limits.discard_zeroes_data = 1;

	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);

drivers/block/swim3.c

+215 −147

File changed.

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