2007-12-11 22:49:10

by Kiyoshi Ueda

[permalink] [raw]
Subject: [PATCH 14/30] blk_end_request: changing xen-blkfront (take 4)

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

Cc: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Kiyoshi Ueda <[email protected]>
Signed-off-by: Jun'ichi Nomura <[email protected]>
---
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();