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uas: add IS_IN_WORK_LIST flag

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Keep track whenever the request is linked into the work list or not.
Needed for request abort.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gerd Hoffmann 2012-11-30 11:54:42 +01:00 committed by Greg Kroah-Hartman
parent b06e48afd1
commit efefecf33a
1 changed files with 8 additions and 2 deletions
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10
drivers/usb/storage/uas.c
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@ -67,6 +67,7 @@ enum {
COMMAND_COMPLETED = (1 << 11),
COMMAND_ABORTED = (1 << 12),
UNLINK_DATA_URBS = (1 << 13),
IS_IN_WORK_LIST = (1 << 14),
};
/* Overrides scsi_pointer */
@ -131,6 +132,8 @@ static void uas_do_work(struct work_struct *work)
struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
spin_lock_irqsave(&devinfo->lock, flags);
err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
if (!err)
cmdinfo->state &= ~IS_IN_WORK_LIST;
spin_unlock_irqrestore(&devinfo->lock, flags);
if (err) {
list_del(&cmdinfo->list);
@ -193,7 +196,7 @@ static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller)
struct uas_cmd_info *ci = (void *)&cmnd->SCp;
scmd_printk(KERN_INFO, cmnd, "%s %p tag %d, inflight:"
"%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
"%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
caller, cmnd, cmnd->request->tag,
(ci->state & SUBMIT_STATUS_URB) ? " s-st" : "",
(ci->state & ALLOC_DATA_IN_URB) ? " a-in" : "",
@ -207,7 +210,8 @@ static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller)
(ci->state & DATA_OUT_URB_INFLIGHT) ? " OUT" : "",
(ci->state & COMMAND_COMPLETED) ? " done" : "",
(ci->state & COMMAND_ABORTED) ? " abort" : "",
(ci->state & UNLINK_DATA_URBS) ? " unlink": "");
(ci->state & UNLINK_DATA_URBS) ? " unlink": "",
(ci->state & IS_IN_WORK_LIST) ? " work" : "");
}
static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
@ -244,6 +248,7 @@ static void uas_xfer_data(struct urb *urb, struct scsi_cmnd *cmnd,
if (err) {
spin_lock(&uas_work_lock);
list_add_tail(&cmdinfo->list, &uas_work_list);
cmdinfo->state |= IS_IN_WORK_LIST;
spin_unlock(&uas_work_lock);
schedule_work(&uas_work);
}
@ -643,6 +648,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
}
spin_lock(&uas_work_lock);
list_add_tail(&cmdinfo->list, &uas_work_list);
cmdinfo->state |= IS_IN_WORK_LIST;
spin_unlock(&uas_work_lock);
schedule_work(&uas_work);
}