linux-kernel - Re: [PATCH] lsm: constify the 'mm' parameter in security_vm_enough_memory

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Message-ID: <ZOX2XDdrfk8rO9+t@casper.infradead.org>
Date:   Wed, 23 Aug 2023 13:06:52 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Khadija Kamran <kamrankhadijadj@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        Serge Hallyn <serge@...lyn.com>,
        Paul Moore <paul@...l-moore.com>,
        James Morris <jmorris@...ei.org>,
        linux-security-module@...r.kernel.org,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Eric Paris <eparis@...isplace.org>, selinux@...r.kernel.org,
        ztarkhani@...rosoft.com, alison.schofield@...el.com
Subject: Re: [PATCH] lsm: constify the 'mm' parameter in
 security_vm_enough_memory_mm()

On Wed, Aug 23, 2023 at 11:53:57AM +0500, Khadija Kamran wrote:
> +++ b/include/linux/mm.h
> @@ -3064,7 +3064,7 @@ void anon_vma_interval_tree_verify(struct anon_vma_chain *node);
>  	     avc; avc = anon_vma_interval_tree_iter_next(avc, start, last))
>  
>  /* mmap.c */
> -extern int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin);
> +extern int __vm_enough_memory(const struct mm_struct *mm, long pages, int cap_sys_admin);

Could you remove the 'extern' when you touch a function prototype?