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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-06-14 23:57:09 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-06-25 08:25:10 +0300 |
| commit | 03bf0044e13ad6f20b6b4513131b73b090b9dbb8 (patch) | |
| tree | aca30e3a9ec9b38380ddbdcff87a197450a7b868 /fs/ocfs2/stackglue.h | |
| parent | 3ebe69c0c3ae3ef5ecd1ad86aa98a3b7cbe3c7e9 (diff) | |
| download | linux-03bf0044e13ad6f20b6b4513131b73b090b9dbb8.tar.xz | |
ocfs2: constify struct ocfs2_stack_operations
"struct ocfs2_stack_operations" are not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security.
In order to do it, "struct ocfs2_stack_plugin" also needs to be adjusted
to this new const qualifier.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
6241 644 0 6885 1ae5 fs/ocfs2/stack_o2cb.o
After:
=====
text data bss dec hex filename
6337 548 0 6885 1ae5 fs/ocfs2/stack_o2cb.o
Link: https://lkml.kernel.org/r/f52dab89ee0049ec6271de29183a781efbb275ab.1718398605.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/stackglue.h')
| -rw-r--r-- | fs/ocfs2/stackglue.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index 3636847fae19..02ab072c528a 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -223,7 +223,7 @@ struct ocfs2_stack_operations { */ struct ocfs2_stack_plugin { char *sp_name; - struct ocfs2_stack_operations *sp_ops; + const struct ocfs2_stack_operations *sp_ops; struct module *sp_owner; /* These are managed by the stackglue code. */ |