ata: libata-eh: Spinup disk on resume after revalidation

Move the call to ata_dev_power_set_active() to transition a disk in
standby power mode to the active power mode from
ata_eh_revalidate_and_attach() before doing revalidation to the end of
ata_eh_recover(), after the link speed for the device is reconfigured
(if that was necessary). This is safer as this ensure that the VERIFY
command executed to spinup the disk is executed with the drive properly
reconfigured first.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 945675f..b0d6e69 100644 (file)
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3051,15 +3051,6 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
                if (ehc->i.flags & ATA_EHI_DID_RESET)
                        readid_flags |= ATA_READID_POSTRESET;
 
-               /*
-                * When resuming, before executing any command, make sure to
-                * transition the device to the active power mode.
-                */
-               if ((action & ATA_EH_SET_ACTIVE) && ata_dev_enabled(dev)) {
-                       ata_dev_power_set_active(dev);
-                       ata_eh_done(link, dev, ATA_EH_SET_ACTIVE);
-               }
-
                if ((action & ATA_EH_REVALIDATE) && ata_dev_enabled(dev)) {
                        WARN_ON(dev->class == ATA_DEV_PMP);
 
@@ -3856,6 +3847,17 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
                        }
                }
 
+               /*
+                * Make sure to transition devices to the active power mode
+                * if needed (e.g. if we were scheduled on system resume).
+                */
+               ata_for_each_dev(dev, link, ENABLED) {
+                       if (ehc->i.dev_action[dev->devno] & ATA_EH_SET_ACTIVE) {
+                               ata_dev_power_set_active(dev);
+                               ata_eh_done(link, dev, ATA_EH_SET_ACTIVE);
+                       }
+               }
+
                /* retry flush if necessary */
                ata_for_each_dev(dev, link, ALL) {
                        if (dev->class != ATA_DEV_ATA &&