[dm-devel] [PATCH 14/30] blk_end_request: changing xen-blkfront (take 4)
Kiyoshi Ueda
k-ueda at ct.jp.nec.com
Tue Dec 11 22:47:36 UTC 2007
This patch converts xen-blkfront to use blk_end_request interfaces.
Related 'uptodate' arguments are converted to 'error'.
Cc: Jeremy Fitzhardinge <jeremy at xensource.com>
Signed-off-by: Kiyoshi Ueda <k-ueda at ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura at ce.jp.nec.com>
---
drivers/block/xen-blkfront.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
Index: 2.6.24-rc4/drivers/block/xen-blkfront.c
===================================================================
--- 2.6.24-rc4.orig/drivers/block/xen-blkfront.c
+++ 2.6.24-rc4/drivers/block/xen-blkfront.c
@@ -452,7 +452,7 @@ static irqreturn_t blkif_interrupt(int i
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 i
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 i
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();
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