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authorTejun Heo <tj@kernel.org>2009-05-12 08:49:32 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-05-12 08:49:32 +0200
commite458824f9d32e9bf7700d1eb0d201749af48eee0 (patch)
tree6f6d755bb2617b1bf3f567d9cfc8c1752151aea7
parent0b0a47f5c4a30b58432e20ae1706a27baea91a88 (diff)
downloadlinux-e458824f9d32e9bf7700d1eb0d201749af48eee0.tar.bz2
scsi: fix resid_len mis-conversion in scsi_end_request()
Commit c3a4d78c580de4edc9ef0f7c59812fb02ceb037f introduced rq->data_len and converted residual count users to it. While converting, it mistakenly converted scsi_end_request() to finish requests with residual count when it wants to do is fully complete the request. Fix it by using blk_end_request_all() instead. This bug was spotted by Boaz Harrosh. Signed-off-by: Tejun Heo <tj@kernel.org> Spotted-by: Boaz Harrosh <bharrosh@panasas.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r--drivers/scsi/scsi_lib.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index a54bec994386..e410d667910d 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -546,14 +546,9 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int error,
* to queue the remainder of them.
*/
if (blk_end_request(req, error, bytes)) {
- int leftover = blk_rq_bytes(req);
-
- if (blk_pc_request(req))
- leftover = req->resid_len;
-
/* kill remainder if no retrys */
if (error && scsi_noretry_cmd(cmd))
- blk_end_request(req, error, leftover);
+ blk_end_request_all(req, error);
else {
if (requeue) {
/*