diff options
| author | Tejun Heo <htejun@gmail.com> | 2007-09-23 13:14:12 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:41 -0400 |
| commit | fd995f7039f1955ccc6b43e1e2d168060b31e4b2 (patch) | |
| tree | 1aac318f211493183508a97aa6c8b2b6cb41d0b6 | |
| parent | ae791c05694d7391ee9261a0450a50f7e95aedfd (diff) | |
| download | blackbird-op-linux-fd995f7039f1955ccc6b43e1e2d168060b31e4b2.tar.gz blackbird-op-linux-fd995f7039f1955ccc6b43e1e2d168060b31e4b2.zip | |
libata-pmp-prep: implement ATA_LFLAG_NO_RETRY
Some PMP links are connected to internal pseudo devices which may come
and go depending on situation. There's no reason to try hard to
recover them. ATA_LFLAG_NO_RETRY tells EH to not retry if the device
attached to the link fails.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/ata/libata-eh.c | 5 | ||||
| -rw-r--r-- | include/linux/libata.h | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 7be04bd30bfe..8f8ed4dfb171 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2335,7 +2335,10 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, struct ata_eh_context *ehc = &link->eh_context; ata_link_for_each_dev(dev, link) { - ehc->tries[dev->devno] = ATA_EH_DEV_TRIES; + if (link->flags & ATA_LFLAG_NO_RETRY) + ehc->tries[dev->devno] = 1; + else + ehc->tries[dev->devno] = ATA_EH_DEV_TRIES; /* collect port action mask recorded in dev actions */ ehc->i.action |= ehc->i.dev_action[dev->devno] & diff --git a/include/linux/libata.h b/include/linux/libata.h index 6266fffb0eb3..adeee7397cdb 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -169,6 +169,7 @@ enum { ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */ ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */ ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB, + ATA_LFLAG_NO_RETRY = (1 << 5), /* don't retry this link */ /* struct ata_port flags */ ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */ |
