From: Wedson Almeida Filho <wedsonaf@gmail.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>,
linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Yue Hu <huyue2@coolpad.com>,
linux-erofs@lists.ozlabs.org,
Wedson Almeida Filho <walmeida@microsoft.com>
Subject: [PATCH 08/29] erofs: move erofs_xattr_handlers and xattr_handler_map to .rodata
Date: Sat, 30 Sep 2023 02:00:12 -0300 [thread overview]
Message-ID: <20230930050033.41174-9-wedsonaf@gmail.com> (raw)
In-Reply-To: <20230930050033.41174-1-wedsonaf@gmail.com>
From: Wedson Almeida Filho <walmeida@microsoft.com>
This makes it harder for accidental or malicious changes to
erofs_xattr_handlers or xattr_handler_map at runtime.
Cc: Gao Xiang <xiang@kernel.org>
Cc: Chao Yu <chao@kernel.org>
Cc: Yue Hu <huyue2@coolpad.com>
Cc: Jeffle Xu <jefflexu@linux.alibaba.com>
Cc: linux-erofs@lists.ozlabs.org
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
---
fs/erofs/xattr.c | 2 +-
fs/erofs/xattr.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index 40178b6e0688..a6dd68ea5df2 100644
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -166,7 +166,7 @@ const struct xattr_handler __maybe_unused erofs_xattr_security_handler = {
};
#endif
-const struct xattr_handler *erofs_xattr_handlers[] = {
+const struct xattr_handler * const erofs_xattr_handlers[] = {
&erofs_xattr_user_handler,
&erofs_xattr_trusted_handler,
#ifdef CONFIG_EROFS_FS_SECURITY
diff --git a/fs/erofs/xattr.h b/fs/erofs/xattr.h
index f16283cb8c93..b246cd0e135e 100644
--- a/fs/erofs/xattr.h
+++ b/fs/erofs/xattr.h
@@ -23,7 +23,7 @@ static inline const char *erofs_xattr_prefix(unsigned int idx,
{
const struct xattr_handler *handler = NULL;
- static const struct xattr_handler *xattr_handler_map[] = {
+ static const struct xattr_handler * const xattr_handler_map[] = {
[EROFS_XATTR_INDEX_USER] = &erofs_xattr_user_handler,
#ifdef CONFIG_EROFS_FS_POSIX_ACL
[EROFS_XATTR_INDEX_POSIX_ACL_ACCESS] = &nop_posix_acl_access,
@@ -44,7 +44,7 @@ static inline const char *erofs_xattr_prefix(unsigned int idx,
return xattr_prefix(handler);
}
-extern const struct xattr_handler *erofs_xattr_handlers[];
+extern const struct xattr_handler * const erofs_xattr_handlers[];
int erofs_xattr_prefixes_init(struct super_block *sb);
void erofs_xattr_prefixes_cleanup(struct super_block *sb);
--
2.34.1
next parent reply other threads:[~2023-09-30 5:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230930050033.41174-1-wedsonaf@gmail.com>
2023-09-30 5:00 ` Wedson Almeida Filho [this message]
2023-10-07 5:50 ` [PATCH 08/29] erofs: move erofs_xattr_handlers and xattr_handler_map to .rodata Gao Xiang
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