sg had lots of the own functions for the direct IO but now sg uses the block layer functions for it. There are only five lines for the direct IO. SG_ALLOW_DIO_CODE define was used to compile out the direct IO code but we don't need the define. If someone wants to remove the direct IO code, he can do easily without the define. Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> --- drivers/scsi/sg.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index d18f90d..2c30331 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -68,7 +68,6 @@ static void sg_proc_cleanup(void); #endif #define SG_ALLOW_DIO_DEF 0 -#define SG_ALLOW_DIO_CODE /* compile out by commenting this define */ #define SG_MAX_DEVS 32768 @@ -1674,13 +1673,12 @@ static int sg_start_req(Sg_request *srp, unsigned char *cmd) if ((dxfer_len <= 0) || (dxfer_dir == SG_DXFER_NONE)) return 0; -#ifdef SG_ALLOW_DIO_CODE if (sg_allow_dio && (hp->flags & SG_FLAG_DIRECT_IO) && (dxfer_dir != SG_DXFER_UNKNOWN) && (0 == hp->iovec_count) && (!sfp->parentdp->device->host->unchecked_isa_dma) && blk_rq_aligned(q, hp->dxferp, dxfer_len)) return sg_build_direct(srp, sfp, dxfer_len); -#endif + if ((!sg_res_in_use(sfp)) && (dxfer_len <= rsv_schp->bufflen)) sg_link_reserve(sfp, srp, dxfer_len); else -- 1.5.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
