openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

libata: clear HOTPLUG flag after a reset 

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@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-07-16 14:29:41 +09:00 committed by Jeff Garzik
parent f8f1e1cc0c
commit fccb6ea5c2
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/ata/libata-eh.c
View File

@ -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;
}