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f2fs: move f2fs_xattr_handlers and f2fs_xattr_handler_map to .rodata

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This makes it harder for accidental or malicious changes to
f2fs_xattr_handlers or f2fs_xattr_handler_map at runtime.

Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <chao@kernel.org>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230930050033.41174-11-wedsonaf@gmail.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Wedson Almeida Filho 2023-09-30 02:00:14 -03:00 committed by Christian Brauner
parent ce78a1ec1c
commit a1c0752c33
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
2 changed files with 3 additions and 3 deletions
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4
fs/f2fs/xattr.c
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@ -189,7 +189,7 @@ const struct xattr_handler f2fs_xattr_security_handler = {
.set = f2fs_xattr_generic_set, .set = f2fs_xattr_generic_set,
}; };
static const struct xattr_handler *f2fs_xattr_handler_map[] = { static const struct xattr_handler * const f2fs_xattr_handler_map[] = {
[F2FS_XATTR_INDEX_USER] = &f2fs_xattr_user_handler, [F2FS_XATTR_INDEX_USER] = &f2fs_xattr_user_handler,
#ifdef CONFIG_F2FS_FS_POSIX_ACL #ifdef CONFIG_F2FS_FS_POSIX_ACL
[F2FS_XATTR_INDEX_POSIX_ACL_ACCESS] = &nop_posix_acl_access, [F2FS_XATTR_INDEX_POSIX_ACL_ACCESS] = &nop_posix_acl_access,
@ -202,7 +202,7 @@ static const struct xattr_handler *f2fs_xattr_handler_map[] = {
[F2FS_XATTR_INDEX_ADVISE] = &f2fs_xattr_advise_handler, [F2FS_XATTR_INDEX_ADVISE] = &f2fs_xattr_advise_handler,
}; };
const struct xattr_handler *f2fs_xattr_handlers[] = { const struct xattr_handler * const f2fs_xattr_handlers[] = {
&f2fs_xattr_user_handler, &f2fs_xattr_user_handler,
&f2fs_xattr_trusted_handler, &f2fs_xattr_trusted_handler,
#ifdef CONFIG_F2FS_FS_SECURITY #ifdef CONFIG_F2FS_FS_SECURITY

2
fs/f2fs/xattr.h
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@ -125,7 +125,7 @@ extern const struct xattr_handler f2fs_xattr_trusted_handler;
extern const struct xattr_handler f2fs_xattr_advise_handler; extern const struct xattr_handler f2fs_xattr_advise_handler;
extern const struct xattr_handler f2fs_xattr_security_handler; extern const struct xattr_handler f2fs_xattr_security_handler;
extern const struct xattr_handler *f2fs_xattr_handlers[]; extern const struct xattr_handler * const f2fs_xattr_handlers[];
extern int f2fs_setxattr(struct inode *, int, const char *, extern int f2fs_setxattr(struct inode *, int, const char *,
const void *, size_t, struct page *, int); const void *, size_t, struct page *, int);