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Subject[PATCH 40/40] Staging: hv: storvsc: No need to copy from bounce buffer in case of failure
Date
In case we are not able to submit an I/O, there is no need to copy
from the bounce buffers; get of the code to copy.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
---
drivers/staging/hv/storvsc_drv.c | 10 +---------
1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index cc4b128..e2cdd7b 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -1421,17 +1421,9 @@ retry_request:
if (ret == -EAGAIN) {
/* no more space */

- if (cmd_request->bounce_sgl_count) {
- /*
- * FIXME: We can optimize on writes by just skipping
- * this
- */
- copy_from_bounce_buffer(scsi_sglist(scmnd),
- cmd_request->bounce_sgl,
- scsi_sg_count(scmnd));
+ if (cmd_request->bounce_sgl_count)
destroy_bounce_buffer(cmd_request->bounce_sgl,
cmd_request->bounce_sgl_count);
- }

kmem_cache_free(host_dev->request_pool, cmd_request);

--
1.7.4.1


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