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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-07-29 09:46:28 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.localdomain> | 2007-07-31 17:29:04 +0200 |
| commit | 7936a892e72498a05b9a7fb1fec6506d65c8e435 (patch) | |
| tree | f7a398b4c224954e26ef59bec07b6df3c750a9c8 /drivers/s390/scsi/zfcp_qdio.c | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23 (diff) | |
| download | linux-7936a892e72498a05b9a7fb1fec6506d65c8e435.tar.xz linux-7936a892e72498a05b9a7fb1fec6506d65c8e435.zip | |
[SCSI] zfcp: convert to use the data buffer accessors
- remove the unnecessary map_single path.
- convert to use the new accessors for the sg lists and the
parameters.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_qdio.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_qdio.c | 41 |
1 files changed, 6 insertions, 35 deletions
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index c408badd2ae9..81daa8204bfe 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -36,8 +36,6 @@ static void zfcp_qdio_sbale_fill (struct zfcp_fsf_req *, unsigned long, void *, int); static int zfcp_qdio_sbals_from_segment (struct zfcp_fsf_req *, unsigned long, void *, unsigned long); -static int zfcp_qdio_sbals_from_buffer - (struct zfcp_fsf_req *, unsigned long, void *, unsigned long, int); static qdio_handler_t zfcp_qdio_request_handler; static qdio_handler_t zfcp_qdio_response_handler; @@ -632,28 +630,6 @@ out: /** - * zfcp_qdio_sbals_from_buffer - fill SBALs from buffer - * @fsf_req: request to be processed - * @sbtype: SBALE flags - * @buffer: data buffer - * @length: length of buffer - * @max_sbals: upper bound for number of SBALs to be used - */ -static int -zfcp_qdio_sbals_from_buffer(struct zfcp_fsf_req *fsf_req, unsigned long sbtype, - void *buffer, unsigned long length, int max_sbals) -{ - struct scatterlist sg_segment; - - zfcp_address_to_sg(buffer, &sg_segment); - sg_segment.length = length; - - return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, &sg_segment, 1, - max_sbals); -} - - -/** * zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command * @fsf_req: request to be processed * @sbtype: SBALE flags @@ -664,18 +640,13 @@ int zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req, unsigned long sbtype, struct scsi_cmnd *scsi_cmnd) { - if (scsi_cmnd->use_sg) { + if (scsi_sg_count(scsi_cmnd)) return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, - (struct scatterlist *) - scsi_cmnd->request_buffer, - scsi_cmnd->use_sg, - ZFCP_MAX_SBALS_PER_REQ); - } else { - return zfcp_qdio_sbals_from_buffer(fsf_req, sbtype, - scsi_cmnd->request_buffer, - scsi_cmnd->request_bufflen, - ZFCP_MAX_SBALS_PER_REQ); - } + scsi_sglist(scsi_cmnd), + scsi_sg_count(scsi_cmnd), + ZFCP_MAX_SBALS_PER_REQ); + else + return 0; } /** |