diff options
| author | Hannes Reinecke <hare@suse.de> | 2016-02-19 09:17:12 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-24 03:27:02 +0100 |
| commit | 851cde9909dd8b6fb90fab7f4e815c8f86c85a0d (patch) | |
| tree | 9cf6e3e2a264143c04ca1a3ba9553383e7290402 /include/scsi | |
| parent | scsi_dh_alua: Allow workqueue to run synchronously (diff) | |
| download | linux-851cde9909dd8b6fb90fab7f4e815c8f86c85a0d.tar.xz linux-851cde9909dd8b6fb90fab7f4e815c8f86c85a0d.zip | |
scsi_dh_alua: Add new blacklist flag 'BLIST_SYNC_ALUA'
Add a new blacklist flag BLIST_SYNC_ALUA to instruct the
alua device handler to use synchronous command submission
for ALUA commands.
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 1 | ||||
| -rw-r--r-- | include/scsi/scsi_devinfo.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 9173ab5a6f72..4af2b240c4d1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -176,6 +176,7 @@ struct scsi_device { unsigned no_dif:1; /* T10 PI (DIF) should be disabled */ unsigned broken_fua:1; /* Don't set FUA bit */ unsigned lun_in_cdb:1; /* Store LUN bits in CDB[1] */ + unsigned synchronous_alua:1; /* Synchronous ALUA commands */ atomic_t disk_events_disable_depth; /* disable depth for disk events */ diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h index 96e3f56519e7..9f750cb63b03 100644 --- a/include/scsi/scsi_devinfo.h +++ b/include/scsi/scsi_devinfo.h @@ -37,5 +37,6 @@ #define BLIST_TRY_VPD_PAGES 0x10000000 /* Attempt to read VPD pages */ #define BLIST_NO_RSOC 0x20000000 /* don't try to issue RSOC */ #define BLIST_MAX_1024 0x40000000 /* maximum 1024 sector cdb length */ +#define BLIST_SYNC_ALUA 0x80000000 /* Synchronous ALUA commands */ #endif |