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| author | Jens Axboe <axboe@suse.de> | 2006-02-03 08:37:08 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-02-08 10:07:13 +0100 |
| commit | 01840f9c9d7ae366311302077ace6bc39169399b (patch) | |
| tree | de26c62e94ab279e18b8278cb7d74f1d14290a0c /block/scsi_ioctl.c | |
| parent | ac171c46667c1cb2ee9e22312291df6ed78e1b6e (diff) | |
| download | lwn-01840f9c9d7ae366311302077ace6bc39169399b.tar.gz lwn-01840f9c9d7ae366311302077ace6bc39169399b.zip | |
[PATCH] blk: Fix SG_IO ioctl failure retry looping
When issuing an SG_IO ioctl through sd that resulted in an unrecoverable
error, a nearly infinite retry loop was discovered. This is due to the
fact that the block layer SG_IO code is not setting up rq->retries. This
patch also fixes up the sg_scsi_ioctl path.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block/scsi_ioctl.c')
| -rw-r--r-- | block/scsi_ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index cc72210687eb..24f7af9d0abc 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -310,6 +310,8 @@ static int sg_io(struct file *file, request_queue_t *q, if (!rq->timeout) rq->timeout = BLK_DEFAULT_TIMEOUT; + rq->retries = 0; + start_time = jiffies; /* ignore return value. All information is passed back to caller @@ -427,6 +429,7 @@ static int sg_scsi_ioctl(struct file *file, request_queue_t *q, rq->data = buffer; rq->data_len = bytes; rq->flags |= REQ_BLOCK_PC; + rq->retries = 0; blk_execute_rq(q, bd_disk, rq, 0); err = rq->errors & 0xff; /* only 8 bit SCSI status */ |