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path: root/drivers/mtd/mtd_blkdevs.c
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Diffstat (limited to 'drivers/mtd/mtd_blkdevs.c')
-rw-r--r--drivers/mtd/mtd_blkdevs.c31
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 6b8d5cd7dbf6..f336a9b85576 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -73,7 +73,7 @@ static void blktrans_dev_put(struct mtd_blktrans_dev *dev)
}
-static int do_blktrans_request(struct mtd_blktrans_ops *tr,
+static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr,
struct mtd_blktrans_dev *dev,
struct request *req)
{
@@ -84,33 +84,37 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr,
nsect = blk_rq_cur_bytes(req) >> tr->blkshift;
buf = bio_data(req->bio);
- if (req_op(req) == REQ_OP_FLUSH)
- return tr->flush(dev);
+ if (req_op(req) == REQ_OP_FLUSH) {
+ if (tr->flush(dev))
+ return BLK_STS_IOERR;
+ return BLK_STS_OK;
+ }
if (blk_rq_pos(req) + blk_rq_cur_sectors(req) >
get_capacity(req->rq_disk))
- return -EIO;
+ return BLK_STS_IOERR;
switch (req_op(req)) {
case REQ_OP_DISCARD:
- return tr->discard(dev, block, nsect);
+ if (tr->discard(dev, block, nsect))
+ return BLK_STS_IOERR;
+ return BLK_STS_OK;
case REQ_OP_READ:
for (; nsect > 0; nsect--, block++, buf += tr->blksize)
if (tr->readsect(dev, block, buf))
- return -EIO;
+ return BLK_STS_IOERR;
rq_flush_dcache_pages(req);
- return 0;
+ return BLK_STS_OK;
case REQ_OP_WRITE:
if (!tr->writesect)
- return -EIO;
+ return BLK_STS_IOERR;
rq_flush_dcache_pages(req);
for (; nsect > 0; nsect--, block++, buf += tr->blksize)
if (tr->writesect(dev, block, buf))
- return -EIO;
- return 0;
+ return BLK_STS_IOERR;
default:
- return -EIO;
+ return BLK_STS_IOERR;
}
}
@@ -132,7 +136,7 @@ static void mtd_blktrans_work(struct work_struct *work)
spin_lock_irq(rq->queue_lock);
while (1) {
- int res;
+ blk_status_t res;
dev->bg_stop = false;
if (!req && !(req = blk_fetch_request(rq))) {
@@ -178,7 +182,7 @@ static void mtd_blktrans_request(struct request_queue *rq)
if (!dev)
while ((req = blk_fetch_request(rq)) != NULL)
- __blk_end_request_all(req, -ENODEV);
+ __blk_end_request_all(req, BLK_STS_IOERR);
else
queue_work(dev->wq, &dev->work);
}
@@ -413,6 +417,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
new->rq->queuedata = new;
blk_queue_logical_block_size(new->rq, tr->blksize);
+ blk_queue_bounce_limit(new->rq, BLK_BOUNCE_HIGH);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, new->rq);
queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, new->rq);