diff options
| author | Tejun Heo <htejun@gmail.com> | 2006-05-19 21:07:05 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-05-20 00:39:08 -0400 |
| commit | f8bbfc247efb0e5fa69094614380768ce79afe17 (patch) | |
| tree | 726b8eb9d41b5f7036c987b80282b90440a295ed /drivers/scsi/scsi_error.c | |
| parent | a20f33ffde8ba5fb27666aa1e228a45b7e3b8dcb (diff) | |
[PATCH] SCSI: make scsi_implement_eh() generic API for SCSI transports
libata implemented a feature to schedule EH without an associated EH
by manipulating shost->host_eh_scheduled in ata_scsi_schedule_eh()
directly. Move this function to scsi_error.c and rename it to
scsi_schedule_eh(). It is now an exported API for SCSI transports and
exported via new header file drivers/scsi/scsi_transport_api.h
This patch also de-export scsi_eh_wakeup() which was exported
specifically for ata_scsi_schedule_eh().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 9ca71cbefce..346ab72ebf8 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -56,7 +56,28 @@ void scsi_eh_wakeup(struct Scsi_Host *shost) printk("Waking error handler thread\n")); } } -EXPORT_SYMBOL_GPL(scsi_eh_wakeup); + +/** + * scsi_schedule_eh - schedule EH for SCSI host + * @shost: SCSI host to invoke error handling on. + * + * Schedule SCSI EH without scmd. + **/ +void scsi_schedule_eh(struct Scsi_Host *shost) +{ + unsigned long flags; + + spin_lock_irqsave(shost->host_lock, flags); + + if (scsi_host_set_state(shost, SHOST_RECOVERY) == 0 || + scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY) == 0) { + shost->host_eh_scheduled++; + scsi_eh_wakeup(shost); + } + + spin_unlock_irqrestore(shost->host_lock, flags); +} +EXPORT_SYMBOL_GPL(scsi_schedule_eh); /** * scsi_eh_scmd_add - add scsi cmd to error handling. |