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Merge branch 'for-3.16/core' into for-3.16/drivers

Browse source 
mtip32xx uses blk_mq_alloc_reserved_request(), so pull in the
core changes so we have a properly merged end result.

Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Jens Axboe 2014-05-28 09:50:26 -06:00
commit 6178976500
33 changed files with 1471 additions and 559 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/block/mtip32xx/mtip32xx.c
View file

@ -178,7 +178,7 @@ static struct mtip_cmd *mtip_get_int_command(struct driver_data *dd)
{
struct request *rq;
rq = blk_mq_alloc_reserved_request(dd->queue, 0, __GFP_WAIT);
rq = blk_mq_alloc_request(dd->queue, 0, __GFP_WAIT, true);
return blk_mq_rq_to_pdu(rq);
}

35
drivers/block/null_blk.c
View file

@ -322,39 +322,10 @@ static int null_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *rq)
}
static struct blk_mq_hw_ctx *null_alloc_hctx(struct blk_mq_tag_set *set,
unsigned int hctx_index)
unsigned int hctx_index,
int node)
{
int b_size = DIV_ROUND_UP(set->nr_hw_queues, nr_online_nodes);
int tip = (set->nr_hw_queues % nr_online_nodes);
int node = 0, i, n;
/*
* Split submit queues evenly wrt to the number of nodes. If uneven,
* fill the first buckets with one extra, until the rest is filled with
* no extra.
*/
for (i = 0, n = 1; i < hctx_index; i++, n++) {
if (n % b_size == 0) {
n = 0;
node++;
tip--;
if (!tip)
b_size = set->nr_hw_queues / nr_online_nodes;
}
}
/*
* A node might not be online, therefore map the relative node id to the
* real node id.
*/
for_each_online_node(n) {
if (!node)
break;
node--;
}
return kzalloc_node(sizeof(struct blk_mq_hw_ctx), GFP_KERNEL, n);
return kzalloc_node(sizeof(struct blk_mq_hw_ctx), GFP_KERNEL, node);
}
static void null_free_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_index)

4
drivers/block/skd_main.c
View file

@ -743,6 +743,7 @@ static void skd_request_fn(struct request_queue *q)
break;
}
skreq->discard_page = 1;
req->completion_data = page;
skd_prep_discard_cdb(scsi_req, skreq, page, lba, count);
} else if (flush == SKD_FLUSH_ZERO_SIZE_FIRST) {
@ -855,10 +856,9 @@ static void skd_end_request(struct skd_device *skdev,
if ((io_flags & REQ_DISCARD) &&
(skreq->discard_page == 1)) {
struct bio *bio = req->bio;
pr_debug("%s:%s:%d, free the page!",
skdev->name, __func__, __LINE__);
__free_page(bio->bi_io_vec->bv_page);
__free_page(req->completion_data);
}
if (unlikely(error)) {