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-rw-r--r--include/linux/libata.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2aa1398bbd5..363c7501843 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -131,6 +131,7 @@ enum {
ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
+ ATA_DFLAG_SUSPENDED = (1 << 9), /* device suspended */
ATA_DFLAG_INIT_MASK = (1 << 16) - 1,
ATA_DFLAG_DETACH = (1 << 16),
@@ -253,9 +254,13 @@ enum {
ATA_EH_REVALIDATE = (1 << 0),
ATA_EH_SOFTRESET = (1 << 1),
ATA_EH_HARDRESET = (1 << 2),
+ ATA_EH_SUSPEND = (1 << 3),
+ ATA_EH_RESUME = (1 << 4),
+ ATA_EH_PM_FREEZE = (1 << 5),
ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
- ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE,
+ ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_SUSPEND |
+ ATA_EH_RESUME | ATA_EH_PM_FREEZE,
/* ata_eh_info->flags */
ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
@@ -944,6 +949,11 @@ static inline unsigned int ata_dev_absent(const struct ata_device *dev)
return ata_class_absent(dev->class);
}
+static inline unsigned int ata_dev_ready(const struct ata_device *dev)
+{
+ return ata_dev_enabled(dev) && !(dev->flags & ATA_DFLAG_SUSPENDED);
+}
+
/*
* port helpers
*/