diff options
Diffstat (limited to 'drivers/ide/ide-io.c')
| -rw-r--r-- | drivers/ide/ide-io.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 28057747c1f8..2b33c129740b 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -766,6 +766,18 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, return ide_stopped; } +static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq) +{ + switch (rq->cmd[0]) { + case REQ_DRIVE_RESET: + return ide_do_reset(drive); + default: + blk_dump_rq_flags(rq, "ide_special_rq - bad request"); + ide_end_request(drive, 0, 0); + return ide_stopped; + } +} + static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) { struct request_pm_state *pm = rq->data; @@ -869,7 +881,16 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) pm->pm_step == ide_pm_state_completed) ide_complete_pm_request(drive, rq); return startstop; - } + } else if (!rq->rq_disk && blk_special_request(rq)) + /* + * TODO: Once all ULDs have been modified to + * check for specific op codes rather than + * blindly accepting any special request, the + * check for ->rq_disk above may be replaced + * by a more suitable mechanism or even + * dropped entirely. + */ + return ide_special_rq(drive, rq); drv = *(ide_driver_t **)rq->rq_disk->private_data; return drv->do_request(drive, rq, block); |