diff options
Diffstat (limited to 'include/scsi/sg.h')
| -rw-r--r-- | include/scsi/sg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/scsi/sg.h b/include/scsi/sg.h index 9859355a7cf9..750e5db7c6bf 100644 --- a/include/scsi/sg.h +++ b/include/scsi/sg.h @@ -86,7 +86,9 @@ typedef struct sg_io_hdr #define SG_FLAG_MMAP_IO 4 /* request memory mapped IO */ #define SG_FLAG_NO_DXFER 0x10000 /* no transfer of kernel buffers to/from */ /* user space (debug indirect IO) */ -#define SG_FLAG_Q_AT_TAIL 0x10 /* default is Q_AT_HEAD */ +/* defaults:: for sg driver: Q_AT_HEAD; for block layer: Q_AT_TAIL */ +#define SG_FLAG_Q_AT_TAIL 0x10 +#define SG_FLAG_Q_AT_HEAD 0x20 /* following 'info' values are "or"-ed together */ #define SG_INFO_OK_MASK 0x1 |