linux-kernel - Re: [PATCH net-next 2/3] mm: vmalloc: export find_vm

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Message-ID: <aXPEFdEdtSmd6AzF@milan>
Date: Fri, 23 Jan 2026 19:55:17 +0100
From: Uladzislau Rezki <urezki@...il.com>
To: "D. Wythe" <alibuda@...ux.alibaba.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dust Li <dust.li@...ux.alibaba.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Sidraya Jayagond <sidraya@...ux.ibm.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Wenjia Zhang <wenjia@...ux.ibm.com>,
	Mahanta Jambigi <mjambigi@...ux.ibm.com>,
	Simon Horman <horms@...nel.org>, Tony Lu <tonylu@...ux.alibaba.com>,
	Wen Gu <guwen@...ux.alibaba.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-rdma@...r.kernel.org,
	linux-s390@...r.kernel.org, netdev@...r.kernel.org,
	oliver.yang@...ux.alibaba.com
Subject: Re: [PATCH net-next 2/3] mm: vmalloc: export find_vm_area()

On Fri, Jan 23, 2026 at 04:23:48PM +0800, D. Wythe wrote:
> find_vm_area() provides a way to find the vm_struct associated with a
> virtual address. Export this symbol to modules so that modularized
> subsystems can perform lookups on vmalloc addresses.
> 
> Signed-off-by: D. Wythe <alibuda@...ux.alibaba.com>
> ---
>  mm/vmalloc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index ecbac900c35f..3eb9fe761c34 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -3292,6 +3292,7 @@ struct vm_struct *find_vm_area(const void *addr)
>  
>  	return va->vm;
>  }
> +EXPORT_SYMBOL_GPL(find_vm_area);
>  
This is internal. We can not just export it.

--
Uladzislau Rezki