diff options
Diffstat (limited to 'include/scsi/scsi_device.h')
| -rw-r--r-- | include/scsi/scsi_device.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 1a5c9a3df6d6..ac6ab16abee7 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -8,6 +8,7 @@ #include <linux/blkdev.h> #include <scsi/scsi.h> #include <linux/atomic.h> +#include <linux/sbitmap.h> struct device; struct request_queue; @@ -106,7 +107,7 @@ struct scsi_device { struct list_head siblings; /* list of all devices on this host */ struct list_head same_target_siblings; /* just the devices sharing same target id */ - atomic_t device_busy; /* commands actually active on LLDD */ + struct sbitmap budget_map; atomic_t device_blocked; /* Device returned QUEUE_FULL. */ atomic_t restarts; @@ -145,7 +146,7 @@ struct scsi_device { struct scsi_vpd __rcu *vpd_pg80; struct scsi_vpd __rcu *vpd_pg89; unsigned char current_tag; /* current tag */ - struct scsi_target *sdev_target; /* used only for single_lun */ + struct scsi_target *sdev_target; blist_flags_t sdev_bflags; /* black/white flags as also found in * scsi_devinfo.[hc]. For now used only to @@ -590,6 +591,11 @@ static inline int scsi_device_supports_vpd(struct scsi_device *sdev) return 0; } +static inline int scsi_device_busy(struct scsi_device *sdev) +{ + return sbitmap_weight(&sdev->budget_map); +} + #define MODULE_ALIAS_SCSI_DEVICE(type) \ MODULE_ALIAS("scsi:t-" __stringify(type) "*") #define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x" |