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Commit fa23b8c7 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
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Staging: hv: storvsc: Optimize the bounce buffer handling in the "read" case 



Optimize the bounce buffer handling in the "read" case.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3612ef99

drivers/staging/hv/storvsc_drv.c

+4 −6
Original line number Original line Diff line number Diff line
@@ -560,11 +560,9 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd, 
				ALIGN(scsi_bufflen(scmnd), PAGE_SIZE) >>

				ALIGN(scsi_bufflen(scmnd), PAGE_SIZE) >>

					PAGE_SHIFT;

					PAGE_SHIFT;





			/*

			if (vm_srb->data_in == WRITE_TYPE)

			 * FIXME: We can optimize on reads by just skipping

				copy_to_bounce_buffer(sgl,

			 * this

					cmd_request->bounce_sgl,

			 */

			copy_to_bounce_buffer(sgl, cmd_request->bounce_sgl,

					scsi_sg_count(scmnd));

					scsi_sg_count(scmnd));





			sgl = cmd_request->bounce_sgl;

			sgl = cmd_request->bounce_sgl;