diff options
| author | Brian King <brking@us.ibm.com> | 2006-02-24 17:10:04 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-02-27 21:38:39 -0600 |
| commit | 8884efab1516613215816d48132dd724508970bf (patch) | |
| tree | 613b80a6adea59defeed3a1fa9fdc6dde7313a28 /drivers | |
| parent | 147aab6aa22ce7775be944f8fb9932aa000dda61 (diff) | |
| download | linux-8884efab1516613215816d48132dd724508970bf.tar.gz | |
[SCSI] scsi: scsi command retries off by one fix
Fix up an off by one error in calculating retries for scsi
commands. This bug was discovered when an SG_IO request
was sent to scsi core with retries = 0, causing the overall
timeout check to go off in scsi_softirq_done.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 5cc97b7216614..ff82ccfbb106b 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1308,7 +1308,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) * the request was not marked fast fail. Note that above, * even if the request is marked fast fail, we still requeue * for queue congestion conditions (QUEUE_FULL or BUSY) */ - if ((++scmd->retries) < scmd->allowed + if ((++scmd->retries) <= scmd->allowed && !blk_noretry_request(scmd->request)) { return NEEDS_RETRY; } else { @@ -1433,7 +1433,7 @@ static void scsi_eh_flush_done_q(struct list_head *done_q) list_del_init(&scmd->eh_entry); if (scsi_device_online(scmd->device) && !blk_noretry_request(scmd->request) && - (++scmd->retries < scmd->allowed)) { + (++scmd->retries <= scmd->allowed)) { SCSI_LOG_ERROR_RECOVERY(3, printk("%s: flush" " retry cmd: %p\n", current->comm, diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4362dcde74afd..701a328f7beb5 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1498,7 +1498,7 @@ static void scsi_kill_request(struct request *req, request_queue_t *q) static void scsi_softirq_done(struct request *rq) { struct scsi_cmnd *cmd = rq->completion_data; - unsigned long wait_for = cmd->allowed * cmd->timeout_per_command; + unsigned long wait_for = (cmd->allowed + 1) * cmd->timeout_per_command; int disposition; INIT_LIST_HEAD(&cmd->eh_entry); |