From f8bbfc247efb0e5fa69094614380768ce79afe17 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 19 May 2006 21:07:05 +0900 Subject: [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 Signed-off-by: Jeff Garzik --- drivers/scsi/scsi_error.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'drivers/scsi/scsi_error.c') 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. -- cgit v1.2.3