Messages in this thread Patch in this message | | | Date | Tue, 12 May 2009 11:15:22 +0900 | From | Tejun Heo <> | Subject | [PATCH block#for-2.6.31] scsi: fix resid_len mis-conversion in scsi_end_request() |
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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: Jens Axboe <jens.axboe@oracle.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> --- drivers/scsi/scsi_lib.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index a54bec9..e410d66 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) { /*
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