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SubjectRe: [PATCH 4/9] sysctl: move maxolduid as a sysctl specific const
On Mon, 20 Dec 2021 11:25:41 -0800 Luis Chamberlain <mcgrof@kernel.org> wrote:

> On Fri, Dec 17, 2021 at 05:15:01PM +0100, Mickaël Salaün wrote:
> > > diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
> > > index 7dec3d5a9ed4..675b625fa898 100644
> > > --- a/fs/proc/proc_sysctl.c
> > > +++ b/fs/proc/proc_sysctl.c
> > > @@ -26,7 +26,7 @@ static const struct file_operations proc_sys_dir_file_operations;
> > > static const struct inode_operations proc_sys_dir_operations;
> > > /* shared constants to be used in various sysctls */
> > > -const int sysctl_vals[] = { -1, 0, 1, 2, 4, 100, 200, 1000, 3000, INT_MAX };
> > > +const int sysctl_vals[] = { -1, 0, 1, 2, 4, 100, 200, 1000, 65535, INT_MAX };
> >
> > The new SYSCTL_MAXOLDUID uses the index 10 of sysctl_vals[] but the same
> > commit replaces index 8 (SYSCTL_THREE_THOUSAND used by
> > vm.watermark_scale_factor) instead of adding a new entry.
> >
> > It should be:
> > +const int sysctl_vals[] = { -1, 0, 1, 2, 4, 100, 200, 1000, 3000, INT_MAX,
> > 65535 };
>
> Can you send a proper patch which properly fixes this and identifies
> the commit name with a Fixes tag. Since thi sis on Andrew's tree no
> commit ID is required given that they are ephemeral.

I did this:

From: Andrew Morton <akpm@linux-foundation.org>
Subject: sysctl-move-maxolduid-as-a-sysctl-specific-const-fix

fix sysctl_vals[], per Mickaël.

Cc: Mickaël Salaün <mic@digikonet>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Antti Palosaari <crope@iki.fi>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Lukas Middendorf <kernel@tuxforce.de>
Cc: Stephen Kitt <steve@sk2.org>
Cc: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

fs/proc/proc_sysctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/proc/proc_sysctl.c~sysctl-move-maxolduid-as-a-sysctl-specific-const-fix
+++ a/fs/proc/proc_sysctl.c
@@ -26,7 +26,7 @@ static const struct file_operations proc
static const struct inode_operations proc_sys_dir_operations;

/* shared constants to be used in various sysctls */
-const int sysctl_vals[] = { -1, 0, 1, 2, 4, 100, 200, 1000, 65535, INT_MAX };
+const int sysctl_vals[] = { -1, 0, 1, 2, 4, 100, 200, 1000, 3000, INT_MAX, 65535 };
EXPORT_SYMBOL(sysctl_vals);

const unsigned long sysctl_long_vals[] = { 0, 1, LONG_MAX };
_
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