linux-kernel - [PATCH 12/29] gfs2: move gfs2_xattr_handlers

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Message-Id: <20230930050033.41174-13-wedsonaf@gmail.com>
Date:   Sat, 30 Sep 2023 02:00:16 -0300
From:   Wedson Almeida Filho <wedsonaf@...il.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Wedson Almeida Filho <walmeida@...rosoft.com>,
        Bob Peterson <rpeterso@...hat.com>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        cluster-devel@...hat.com
Subject: [PATCH 12/29] gfs2: move gfs2_xattr_handlers_max to .rodata

From: Wedson Almeida Filho <walmeida@...rosoft.com>

This makes it harder for accidental or malicious changes to
gfs2_xattr_handlers_max at runtime.

Cc: Bob Peterson <rpeterso@...hat.com>
Cc: Andreas Gruenbacher <agruenba@...hat.com>
Cc: cluster-devel@...hat.com
Signed-off-by: Wedson Almeida Filho <walmeida@...rosoft.com>
---
 fs/gfs2/super.h | 4 ++--
 fs/gfs2/xattr.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index bba58629bc45..3555dc69183a 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -59,8 +59,8 @@ extern const struct export_operations gfs2_export_ops;
 extern const struct super_operations gfs2_super_ops;
 extern const struct dentry_operations gfs2_dops;
 
-extern const struct xattr_handler *gfs2_xattr_handlers_max[];
-extern const struct xattr_handler **gfs2_xattr_handlers_min;
+extern const struct xattr_handler * const gfs2_xattr_handlers_max[];
+extern const struct xattr_handler * const *gfs2_xattr_handlers_min;
 
 #endif /* __SUPER_DOT_H__ */
 
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index 93b36d026bb4..146c32d44bd1 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -1494,7 +1494,7 @@ static const struct xattr_handler gfs2_xattr_trusted_handler = {
 	.set    = gfs2_xattr_set,
 };
 
-const struct xattr_handler *gfs2_xattr_handlers_max[] = {
+const struct xattr_handler * const gfs2_xattr_handlers_max[] = {
 	/* GFS2_FS_FORMAT_MAX */
 	&gfs2_xattr_trusted_handler,
 
@@ -1504,4 +1504,4 @@ const struct xattr_handler *gfs2_xattr_handlers_max[] = {
 	NULL,
 };
 
-const struct xattr_handler **gfs2_xattr_handlers_min = gfs2_xattr_handlers_max + 1;
+const struct xattr_handler * const *gfs2_xattr_handlers_min = gfs2_xattr_handlers_max + 1;
-- 
2.34.1