diff mbox series

xfs: fix unused variable warning in buffer completion on !DEBUG

Message ID 20200508105559.27037-1-bfoster@redhat.com (mailing list archive)
State Accepted
Headers show
Series xfs: fix unused variable warning in buffer completion on !DEBUG | expand

Commit Message

Brian Foster May 8, 2020, 10:55 a.m. UTC
The random buffer write failure errortag patch introduced a local
mount pointer variable for the test macro, but the macro is compiled
out on !DEBUG kernels. This results in an unused variable warning.

Access the mount structure through the buffer pointer and remove the
local mount pointer to address the warning.

Fixes: 7376d745473 ("xfs: random buffer write failure errortag")
Signed-off-by: Brian Foster <bfoster@redhat.com>
---

Feel free to fold this into the original commit or merge independently.
Sorry for the noise..

Brian

 fs/xfs/xfs_buf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Christoph Hellwig May 8, 2020, 12:08 p.m. UTC | #1
On Fri, May 08, 2020 at 06:55:59AM -0400, Brian Foster wrote:
> The random buffer write failure errortag patch introduced a local
> mount pointer variable for the test macro, but the macro is compiled
> out on !DEBUG kernels. This results in an unused variable warning.
> 
> Access the mount structure through the buffer pointer and remove the
> local mount pointer to address the warning.
> 
> Fixes: 7376d745473 ("xfs: random buffer write failure errortag")
> Signed-off-by: Brian Foster <bfoster@redhat.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>
Darrick J. Wong May 8, 2020, 3:50 p.m. UTC | #2
On Fri, May 08, 2020 at 06:55:59AM -0400, Brian Foster wrote:
> The random buffer write failure errortag patch introduced a local
> mount pointer variable for the test macro, but the macro is compiled
> out on !DEBUG kernels. This results in an unused variable warning.
> 
> Access the mount structure through the buffer pointer and remove the
> local mount pointer to address the warning.
> 
> Fixes: 7376d745473 ("xfs: random buffer write failure errortag")
> Signed-off-by: Brian Foster <bfoster@redhat.com>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> 
> Feel free to fold this into the original commit or merge independently.
> Sorry for the noise..
> 
> Brian
> 
>  fs/xfs/xfs_buf.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> index 9d8841ac7375..9c2fbb6bbf89 100644
> --- a/fs/xfs/xfs_buf.c
> +++ b/fs/xfs/xfs_buf.c
> @@ -1289,11 +1289,10 @@ xfs_buf_bio_end_io(
>  	struct bio		*bio)
>  {
>  	struct xfs_buf		*bp = (struct xfs_buf *)bio->bi_private;
> -	struct xfs_mount	*mp = bp->b_mount;
>  
>  	if (!bio->bi_status &&
>  	    (bp->b_flags & XBF_WRITE) && (bp->b_flags & XBF_ASYNC) &&
> -	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BUF_IOERROR))
> +	    XFS_TEST_ERROR(false, bp->b_mount, XFS_ERRTAG_BUF_IOERROR))
>  		bio->bi_status = BLK_STS_IOERR;
>  
>  	/*
> -- 
> 2.21.1
>
diff mbox series

Patch

diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 9d8841ac7375..9c2fbb6bbf89 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1289,11 +1289,10 @@  xfs_buf_bio_end_io(
 	struct bio		*bio)
 {
 	struct xfs_buf		*bp = (struct xfs_buf *)bio->bi_private;
-	struct xfs_mount	*mp = bp->b_mount;
 
 	if (!bio->bi_status &&
 	    (bp->b_flags & XBF_WRITE) && (bp->b_flags & XBF_ASYNC) &&
-	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BUF_IOERROR))
+	    XFS_TEST_ERROR(false, bp->b_mount, XFS_ERRTAG_BUF_IOERROR))
 		bio->bi_status = BLK_STS_IOERR;
 
 	/*