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SubjectRe: [PATCH 13/13] fs: move binfmt_misc sysctl to its own file
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On 2020/5/29 15:41, Luis Chamberlain wrote:
> This moves the binfmt_misc sysctl to its own file to help remove
> clutter from kernel/sysctl.c.
>
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
> fs/binfmt_misc.c | 1 +
> kernel/sysctl.c | 7 -------
> 2 files changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
> index f69a043f562b..656b3f5f3bbf 100644
> --- a/fs/binfmt_misc.c
> +++ b/fs/binfmt_misc.c
> @@ -821,6 +821,7 @@ static int __init init_misc_binfmt(void)
> int err = register_filesystem(&bm_fs_type);
> if (!err)
> insert_binfmt(&misc_format);
> + register_sysctl_empty_subdir("fs", "binfmt_misc");
> return err;
> }
build error when CONFIG_BINFMT_MISC=m

ERROR: modpost: "register_sysctl_empty_subdir" [fs/binfmt_misc.ko]
undefined!

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 27f0c9ea..4129dfb 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2853,6 +2853,7 @@ void register_sysctl_empty_subdir(const char *base,
{
register_sysctl_subdir(base, subdir, sysctl_mount_point);
}
+EXPORT_SYMBOL_GPL(register_sysctl_empty_subdir);
#endif /* CONFIG_SYSCTL */


Thanks
Xiaoming Ni

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