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blk_end_request: changing xen-blkfront (take 4)

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This patch converts xen-blkfront to use blk_end_request interfaces.
Related 'uptodate' arguments are converted to 'error'.

Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Kiyoshi Ueda 2007-12-11 17:47:36 -05:00 committed by Jens Axboe
parent b2aec24ea4
commit f530f03637
1 changed files with 4 additions and 6 deletions
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10
drivers/block/xen-blkfront.c
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@ -452,7 +452,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
RING_IDX i, rp;
unsigned long flags;
struct blkfront_info *info = (struct blkfront_info *)dev_id;
int uptodate;
int error;
spin_lock_irqsave(&blkif_io_lock, flags);
@ -477,13 +477,13 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
add_id_to_freelist(info, id);
uptodate = (bret->status == BLKIF_RSP_OKAY);
error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO;
switch (bret->operation) {
case BLKIF_OP_WRITE_BARRIER:
if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
printk(KERN_WARNING "blkfront: %s: write barrier op failed\n",
info->gd->disk_name);
uptodate = -EOPNOTSUPP;
error = -EOPNOTSUPP;
info->feature_barrier = 0;
xlvbd_barrier(info);
}
@ -494,10 +494,8 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
dev_dbg(&info->xbdev->dev, "Bad return from blkdev data "
"request: %x\n", bret->status);
ret = end_that_request_first(req, uptodate,
req->hard_nr_sectors);
ret = __blk_end_request(req, error, blk_rq_bytes(req));
BUG_ON(ret);
end_that_request_last(req, uptodate);
break;
default:
BUG();