diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi.h | 2 | ||||
| -rw-r--r-- | include/scsi/sg.h | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index e6df23cae7be..261e708010da 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -31,7 +31,7 @@ enum scsi_timeouts { * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit * is totally arbitrary, a setting of 2048 will get you at least 8mb ios. */ -#ifdef ARCH_HAS_SG_CHAIN +#ifdef CONFIG_ARCH_HAS_SG_CHAIN #define SCSI_MAX_SG_CHAIN_SEGMENTS 2048 #else #define SCSI_MAX_SG_CHAIN_SEGMENTS SCSI_MAX_SG_SEGMENTS 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 |