diff mbox series

[2/7] virtiofsd: Get rid of unreachable code in read

Message ID 20210511213736.281016-3-vgoyal@redhat.com (mailing list archive)
State New, archived
Headers show
Series virtiofsd: Few cleanups in virtio_send_data_iov() | expand

Commit Message

Vivek Goyal May 11, 2021, 9:37 p.m. UTC
pvreadv() can return following.

- error
- 0 in case of EOF
- short read

We seem to handle all the cases already. We are retrying read in case
of short read. So another check for short read seems like dead code.
Get rid of it.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
 tools/virtiofsd/fuse_virtio.c | 5 -----
 1 file changed, 5 deletions(-)

Comments

Dr. David Alan Gilbert May 18, 2021, 12:01 p.m. UTC | #1
* Vivek Goyal (vgoyal@redhat.com) wrote:
> pvreadv() can return following.
> 
> - error
> - 0 in case of EOF
> - short read
> 
> We seem to handle all the cases already. We are retrying read in case
> of short read. So another check for short read seems like dead code.
> Get rid of it.
> 
> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  tools/virtiofsd/fuse_virtio.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
> index 32914f7e95..5dcd08fccb 100644
> --- a/tools/virtiofsd/fuse_virtio.c
> +++ b/tools/virtiofsd/fuse_virtio.c
> @@ -446,11 +446,6 @@ int virtio_send_data_iov(struct fuse_session *se, struct fuse_chan *ch,
>                       in_sg_left);
>              break;
>          }
> -        if (ret != len) {
> -            fuse_log(FUSE_LOG_DEBUG, "%s: ret!=len\n", __func__);
> -            ret = EIO;
> -            goto err;
> -        }
>          in_sg_left -= ret;
>          len -= ret;
>      } while (in_sg_left);
> -- 
> 2.25.4
>
diff mbox series

Patch

diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
index 32914f7e95..5dcd08fccb 100644
--- a/tools/virtiofsd/fuse_virtio.c
+++ b/tools/virtiofsd/fuse_virtio.c
@@ -446,11 +446,6 @@  int virtio_send_data_iov(struct fuse_session *se, struct fuse_chan *ch,
                      in_sg_left);
             break;
         }
-        if (ret != len) {
-            fuse_log(FUSE_LOG_DEBUG, "%s: ret!=len\n", __func__);
-            ret = EIO;
-            goto err;
-        }
         in_sg_left -= ret;
         len -= ret;
     } while (in_sg_left);