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| author | Tejun Heo <htejun@gmail.com> | 2006-02-02 00:56:10 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 01:18:37 -0500 |
| commit | dde44589bf9fac0168c6ce6d097c99c33b18074f (patch) | |
| tree | ee68375254528cd19fbaa66969634c7a2fd87a6f | |
| parent | 725b2805fd5d729b0db59fe8fc992e97523782c7 (diff) | |
| download | talos-obmc-linux-dde44589bf9fac0168c6ce6d097c99c33b18074f.tar.gz talos-obmc-linux-dde44589bf9fac0168c6ce6d097c99c33b18074f.zip | |
[PATCH] libata: implement ATA_FLAG_IN_EH port flag
ATA_FLAG_IN_EH flag is set on entry to EH and cleared on completion.
This patch just sets and clears the flag. Following patches will
build normal qc execution / EH synchronization aroung this flag.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 9 | ||||
| -rw-r--r-- | include/linux/libata.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 2d328b3af067..3a4f40b251fb 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -735,6 +735,11 @@ int ata_scsi_error(struct Scsi_Host *host) DPRINTK("ENTER\n"); + spin_lock_irqsave(&ap->host_set->lock, flags); + assert(!(ap->flags & ATA_FLAG_IN_EH)); + ap->flags |= ATA_FLAG_IN_EH; + spin_unlock_irqrestore(&ap->host_set->lock, flags); + ap = (struct ata_port *) &host->hostdata[0]; ap->ops->eng_timeout(ap); @@ -742,6 +747,10 @@ int ata_scsi_error(struct Scsi_Host *host) scsi_eh_flush_done_q(&ap->eh_done_q); + spin_lock_irqsave(&ap->host_set->lock, flags); + ap->flags &= ~ATA_FLAG_IN_EH; + spin_unlock_irqrestore(&ap->host_set->lock, flags); + DPRINTK("EXIT\n"); return 0; } diff --git a/include/linux/libata.h b/include/linux/libata.h index 474cdfa35d1e..55176df403a5 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -162,6 +162,8 @@ enum { ATA_FLAG_PIO_LBA48 = (1 << 13), /* Host DMA engine is LBA28 only */ ATA_FLAG_IRQ_MASK = (1 << 14), /* Mask IRQ in PIO xfers */ + ATA_FLAG_IN_EH = (1 << 15), /* EH in progress */ + ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */ ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */ ATA_QCFLAG_SINGLE = (1 << 4), /* no s/g, just a single buffer */ |
