linux-kernel - [PATCH] xfs: simplify two-level sysctl registration for xfs

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Message-Id: <20230310230219.3948819-1-mcgrof@kernel.org>
Date:   Fri, 10 Mar 2023 15:02:19 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     djwong@...nel.org
Cc:     linux-xfs@...r.kernel.org, keescook@...omium.org,
        yzaikin@...gle.com, j.granados@...sung.com,
        patches@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH] xfs: simplify two-level sysctl registration for xfs_table

There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().

Simplify this registration.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---

This is not clear to some so I've updated the docs for the sysctl
registration here:

https://lore.kernel.org/all/20230310223947.3917711-1-mcgrof@kernel.org/T/#u     

 fs/xfs/xfs_sysctl.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/fs/xfs/xfs_sysctl.c b/fs/xfs/xfs_sysctl.c
index 546a6cd96729..fade33735393 100644
--- a/fs/xfs/xfs_sysctl.c
+++ b/fs/xfs/xfs_sysctl.c
@@ -210,28 +210,10 @@ static struct ctl_table xfs_table[] = {
 	{}
 };
 
-static struct ctl_table xfs_dir_table[] = {
-	{
-		.procname	= "xfs",
-		.mode		= 0555,
-		.child		= xfs_table
-	},
-	{}
-};
-
-static struct ctl_table xfs_root_table[] = {
-	{
-		.procname	= "fs",
-		.mode		= 0555,
-		.child		= xfs_dir_table
-	},
-	{}
-};
-
 int
 xfs_sysctl_register(void)
 {
-	xfs_table_header = register_sysctl_table(xfs_root_table);
+	xfs_table_header = register_sysctl("fs/xfs", xfs_table);
 	if (!xfs_table_header)
 		return -ENOMEM;
 	return 0;
-- 
2.39.1