linux-kernel - [PATCH] 9p: constify xattr

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Date:   Thu, 31 Aug 2017 15:28:43 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     lucho@...kov.net, rminnich@...dia.gov, ericvh@...il.com
Cc:     linux-kernel@...r.kernel.org, v9fs-developer@...ts.sourceforge.net
Subject: [PATCH] 9p: constify xattr_handler

xattr_handler are not supposed to change at runtime.
"struct super_block" working with xattr_handler provided
by <linux/fs.h> work with const xattr_handler. So mark
the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 fs/9p/xattr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index f329eee..3d45d25 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -154,20 +154,20 @@ static int v9fs_xattr_handler_set(const struct xattr_handler *handler,
 	return v9fs_xattr_set(dentry, full_name, value, size, flags);
 }
 
-static struct xattr_handler v9fs_xattr_user_handler = {
+static const struct xattr_handler v9fs_xattr_user_handler = {
 	.prefix	= XATTR_USER_PREFIX,
 	.get	= v9fs_xattr_handler_get,
 	.set	= v9fs_xattr_handler_set,
 };
 
-static struct xattr_handler v9fs_xattr_trusted_handler = {
+static const struct xattr_handler v9fs_xattr_trusted_handler = {
 	.prefix	= XATTR_TRUSTED_PREFIX,
 	.get	= v9fs_xattr_handler_get,
 	.set	= v9fs_xattr_handler_set,
 };
 
 #ifdef CONFIG_9P_FS_SECURITY
-static struct xattr_handler v9fs_xattr_security_handler = {
+static const struct xattr_handler v9fs_xattr_security_handler = {
 	.prefix	= XATTR_SECURITY_PREFIX,
 	.get	= v9fs_xattr_handler_get,
 	.set	= v9fs_xattr_handler_set,
-- 
1.9.1