diff mbox series

[42/43] xfs: wire up the show_stats super operation

Message ID 20241211085636.1380516-43-hch@lst.de (mailing list archive)
State New
Headers show
Series [01/43] xfs: constify feature checks | expand

Commit Message

Christoph Hellwig Dec. 11, 2024, 8:55 a.m. UTC
The show_stats option allows a file system to dump plain text statistic
on a per-mount basis into /proc/*/mountstats.  Wire up a no-op version
which will grow useful information for zoned file systems later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_super.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Darrick J. Wong Dec. 13, 2024, 11:01 p.m. UTC | #1
On Wed, Dec 11, 2024 at 09:55:07AM +0100, Christoph Hellwig wrote:
> The show_stats option allows a file system to dump plain text statistic
> on a per-mount basis into /proc/*/mountstats.  Wire up a no-op version
> which will grow useful information for zoned file systems later.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>

--D

> ---
>  fs/xfs/xfs_super.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index d2f2fa26c487..47468623fdc6 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -1238,6 +1238,14 @@ xfs_fs_shutdown(
>  	xfs_force_shutdown(XFS_M(sb), SHUTDOWN_DEVICE_REMOVED);
>  }
>  
> +static int
> +xfs_fs_show_stats(
> +	struct seq_file		*m,
> +	struct dentry		*root)
> +{
> +	return 0;
> +}
> +
>  static const struct super_operations xfs_super_operations = {
>  	.alloc_inode		= xfs_fs_alloc_inode,
>  	.destroy_inode		= xfs_fs_destroy_inode,
> @@ -1252,6 +1260,7 @@ static const struct super_operations xfs_super_operations = {
>  	.nr_cached_objects	= xfs_fs_nr_cached_objects,
>  	.free_cached_objects	= xfs_fs_free_cached_objects,
>  	.shutdown		= xfs_fs_shutdown,
> +	.show_stats		= xfs_fs_show_stats,
>  };
>  
>  static int
> -- 
> 2.45.2
> 
>
diff mbox series

Patch

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index d2f2fa26c487..47468623fdc6 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1238,6 +1238,14 @@  xfs_fs_shutdown(
 	xfs_force_shutdown(XFS_M(sb), SHUTDOWN_DEVICE_REMOVED);
 }
 
+static int
+xfs_fs_show_stats(
+	struct seq_file		*m,
+	struct dentry		*root)
+{
+	return 0;
+}
+
 static const struct super_operations xfs_super_operations = {
 	.alloc_inode		= xfs_fs_alloc_inode,
 	.destroy_inode		= xfs_fs_destroy_inode,
@@ -1252,6 +1260,7 @@  static const struct super_operations xfs_super_operations = {
 	.nr_cached_objects	= xfs_fs_nr_cached_objects,
 	.free_cached_objects	= xfs_fs_free_cached_objects,
 	.shutdown		= xfs_fs_shutdown,
+	.show_stats		= xfs_fs_show_stats,
 };
 
 static int