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Message-ID: <3b1f3981-639b-83ea-a691-b919f9838644@huawei.com>
Date: Sat, 7 Oct 2023 09:39:25 +0800
From: Zhihao Cheng <chengzhihao1@...wei.com>
To: Wedson Almeida Filho <wedsonaf@...il.com>,
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>,
Richard Weinberger <richard@....at>,
<linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH 25/29] ubifs: move ubifs_xattr_handlers to .rodata
在 2023/9/30 13:00, Wedson Almeida Filho 写道:
> From: Wedson Almeida Filho <walmeida@...rosoft.com>
>
> This makes it harder for accidental or malicious changes to
> ubifs_xattr_handlers at runtime.
>
> Cc: Richard Weinberger <richard@....at>
> Cc: linux-mtd@...ts.infradead.org
> Signed-off-by: Wedson Almeida Filho <walmeida@...rosoft.com>
> ---
> fs/ubifs/ubifs.h | 2 +-
> fs/ubifs/xattr.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Zhihao Cheng <chengzhihao1@...wei.com>
>
> diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
> index 4c36044140e7..8a9a66255e7e 100644
> --- a/fs/ubifs/ubifs.h
> +++ b/fs/ubifs/ubifs.h
> @@ -2043,7 +2043,7 @@ ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
> size_t size);
>
> #ifdef CONFIG_UBIFS_FS_XATTR
> -extern const struct xattr_handler *ubifs_xattr_handlers[];
> +extern const struct xattr_handler * const ubifs_xattr_handlers[];
> ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
> void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum);
> int ubifs_purge_xattrs(struct inode *host);
> diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
> index 349228dd1191..5e17e9591e6e 100644
> --- a/fs/ubifs/xattr.c
> +++ b/fs/ubifs/xattr.c
> @@ -735,7 +735,7 @@ static const struct xattr_handler ubifs_security_xattr_handler = {
> };
> #endif
>
> -const struct xattr_handler *ubifs_xattr_handlers[] = {
> +const struct xattr_handler * const ubifs_xattr_handlers[] = {
> &ubifs_user_xattr_handler,
> &ubifs_trusted_xattr_handler,
> #ifdef CONFIG_UBIFS_FS_SECURITY
>
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