From: Tejun Heo Date: Mon, 10 Jul 2006 14:18:23 +0000 (+0900) Subject: [PATCH] libata: fix eh_skip_recovery condition X-Git-Tag: v2.6.18-rc3~10^2~4 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c8c2cff81b2b7f6dd3f9fd7b77033c1be5d7920;p=linux-2.6 [PATCH] libata: fix eh_skip_recovery condition * (ata_dev_absent() || ata_dev_ready()) test doesn't indicate SUSPENDED state properly. Fix it. * Link resuming resets shouldn't be skipped. Don't skip recovery on EHI_RESUME_LINK. This doesn't matter for host ports as EHI_RESUME always coincides with EHI_HOTPLUGGED which makes attached disabled devices vacant. However, PMP reset causes non-hotplug link-resuming resets which shouldn't be skipped. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c index 36a801c833..1dcb2c13ff 100644 --- a/drivers/scsi/libata-eh.c +++ b/drivers/scsi/libata-eh.c @@ -1843,15 +1843,16 @@ static int ata_eh_skip_recovery(struct ata_port *ap) for (i = 0; i < ata_port_max_devices(ap); i++) { struct ata_device *dev = &ap->device[i]; - if (ata_dev_absent(dev) || ata_dev_ready(dev)) + if (!(dev->flags & ATA_DFLAG_SUSPENDED)) break; } if (i == ata_port_max_devices(ap)) return 1; - /* always thaw frozen port and recover failed devices */ - if (ap->pflags & ATA_PFLAG_FROZEN || ata_port_nr_enabled(ap)) + /* thaw frozen port, resume link and recover failed devices */ + if ((ap->pflags & ATA_PFLAG_FROZEN) || + (ehc->i.flags & ATA_EHI_RESUME_LINK) || ata_port_nr_enabled(ap)) return 0; /* skip if class codes for all vacant slots are ATA_DEV_NONE */