diff options
author | Tejun Heo <htejun@gmail.com> | 2006-05-15 15:58:07 +0400 |
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committer | Tejun Heo <htejun@gmail.com> | 2006-05-15 15:58:07 +0400 |
commit | 7b70fc039824bc7303e4007a5f758f832de56611 (patch) | |
tree | d973a40055dec97fedc5ae87852667ed2d30ea71 /drivers/scsi/libata-scsi.c | |
parent | f686bcb8078ac7505ec88818886c2c72639f4fc5 (diff) | |
download | linux-7b70fc039824bc7303e4007a5f758f832de56611.tar.xz |
[PATCH] libata-eh-fw: implement ata_port_schedule_eh() and ata_port_abort()
ata_port_schedule_eh() directly schedules EH for @ap without
associated qc. Once EH scheduled, no further qc is allowed and EH
kicks in as soon as all currently active qc's are drained.
ata_port_abort() schedules all currently active commands for EH by
qc_completing them with ATA_QCFLAG_FAILED set. If ata_port_abort()
doesn't find any qc to abort, it directly schedule EH using
ata_port_schedule_eh().
These two functions provide ways to invoke EH for conditions which
aren't directly related to any specfic qc.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/scsi/libata-scsi.c')
-rw-r--r-- | drivers/scsi/libata-scsi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index a9b4083a4f67..fd7064b9697d 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -2596,3 +2596,26 @@ void ata_scsi_scan_host(struct ata_port *ap) } } +/** + * ata_schedule_scsi_eh - schedule EH for SCSI host + * @shost: SCSI host to invoke error handling on. + * + * Schedule SCSI EH without scmd. This is a hack. + * + * LOCKING: + * spin_lock_irqsave(host_set lock) + **/ +void ata_schedule_scsi_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); +} |