ATA_EHI_HOTPLUGGED is a hint for reset functions indicating the the
port might have gone through hotplug/unplug just before entering EH.
Reset functions modify their behaviors a bit to handle the situation
better - e.g. using longer debouncing delay.
Currently, once HOTPLUG is set, it isn't cleared till the end of EH.
This is unnecessary and makes EH take longer. Clear the HOTPLUGGED
flag after a reset try (successful or not).
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/ata/libata-eh.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 1a4397a..a5a8f84 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1714,7 +1714,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
} else
ata_port_printk(ap, KERN_ERR,
"prereset failed (errno=%d)\n", rc);
- return rc;
+ goto out;
}
}
@@ -1727,7 +1727,8 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
/* prereset told us not to reset, bang classes and return */
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ATA_DEV_NONE;
- return 0;
+ rc = 0;
+ goto out;
}
/* did prereset() screw up? if so, fix up to avoid oopsing */
@@ -1763,7 +1764,8 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
ata_port_printk(ap, KERN_ERR,
"follow-up softreset required "
"but no softreset avaliable\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
ata_eh_about_to_do(ap, NULL, ATA_EH_RESET_MASK);
@@ -1773,7 +1775,8 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
classes[0] == ATA_DEV_UNKNOWN) {
ata_port_printk(ap, KERN_ERR,
"classification failed\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
}
@@ -1818,7 +1821,9 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
ata_eh_done(ap, NULL, ehc->i.action & ATA_EH_RESET_MASK);
ehc->i.action |= ATA_EH_REVALIDATE;
}
-
+ out:
+ /* clear hotplug flag */
+ ehc->i.flags &= ~ATA_EHI_HOTPLUGGED;
return rc;
}
--
1.5.0.3
-
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