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[07/10] xfs: clean up long conditionals in xfs_iwalk_ichunk_ra

Message ID 155968501261.1657646.16272249682611768545.stgit@magnolia (mailing list archive)
State Superseded, archived
Headers show
Series xfs: refactor and improve inode iteration | expand

Commit Message

Darrick J. Wong June 4, 2019, 9:50 p.m. UTC 
From: Darrick J. Wong <darrick.wong@oracle.com>

Refactor xfs_iwalk_ichunk_ra to avoid long conditionals.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/xfs_iwalk.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Comments

Brian Foster June 10, 2019, 7:32 p.m. UTC | #1 
On Tue, Jun 04, 2019 at 02:50:12PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Refactor xfs_iwalk_ichunk_ra to avoid long conditionals.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  fs/xfs/xfs_iwalk.c |   12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> 
> diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c
> index 9ad017ddbae7..8595258b5001 100644
> --- a/fs/xfs/xfs_iwalk.c
> +++ b/fs/xfs/xfs_iwalk.c
> @@ -84,16 +84,16 @@ xfs_iwalk_ichunk_ra(
>  	agbno = XFS_AGINO_TO_AGBNO(mp, irec->ir_startino);
>  
>  	blk_start_plug(&plug);
> -	for (i = 0;
> -	     i < XFS_INODES_PER_CHUNK;
> -	     i += igeo->inodes_per_cluster,
> -			agbno += igeo->blocks_per_cluster) {
> -		if (xfs_inobt_maskn(i, igeo->inodes_per_cluster) &
> -		    ~irec->ir_free) {
> +	for (i = 0; i < XFS_INODES_PER_CHUNK; i += igeo->inodes_per_cluster) {
> +		xfs_inofree_t	imask;
> +
> +		imask = xfs_inobt_maskn(i, igeo->inodes_per_cluster);
> +		if (imask & ~irec->ir_free) {
>  			xfs_btree_reada_bufs(mp, agno, agbno,
>  					igeo->blocks_per_cluster,
>  					&xfs_inode_buf_ops);
>  		}
> +		agbno += igeo->blocks_per_cluster;
>  	}
>  	blk_finish_plug(&plug);
>  }
>
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Patch

diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c
index 9ad017ddbae7..8595258b5001 100644
--- a/fs/xfs/xfs_iwalk.c
+++ b/fs/xfs/xfs_iwalk.c
@@ -84,16 +84,16 @@  xfs_iwalk_ichunk_ra(
 	agbno = XFS_AGINO_TO_AGBNO(mp, irec->ir_startino);
 
 	blk_start_plug(&plug);
-	for (i = 0;
-	     i < XFS_INODES_PER_CHUNK;
-	     i += igeo->inodes_per_cluster,
-			agbno += igeo->blocks_per_cluster) {
-		if (xfs_inobt_maskn(i, igeo->inodes_per_cluster) &
-		    ~irec->ir_free) {
+	for (i = 0; i < XFS_INODES_PER_CHUNK; i += igeo->inodes_per_cluster) {
+		xfs_inofree_t	imask;
+
+		imask = xfs_inobt_maskn(i, igeo->inodes_per_cluster);
+		if (imask & ~irec->ir_free) {
 			xfs_btree_reada_bufs(mp, agno, agbno,
 					igeo->blocks_per_cluster,
 					&xfs_inode_buf_ops);
 		}
+		agbno += igeo->blocks_per_cluster;
 	}
 	blk_finish_plug(&plug);
 }