[PATCH 40/40] Staging: hv: storvsc: No need to copy from bounce buffer in case of failure
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: 2011-06-29 14:25:52
Also in:
lkml
Subsystem:
staging subsystem, the rest · Maintainers:
Greg Kroah-Hartman, Linus Torvalds
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 <redacted> Signed-off-by: Hank Janssen <redacted> --- 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