From: Frederic Barrat <fbarrat@linux.ibm.com>
To: Laurent Dufour <ldufour@linux.ibm.com>,
ajd@linux.ibm.com, arnd@arndb.de, gregkh@linuxfoundation.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
clombard@linux.ibm.com
Subject: Re: [PATCH] cxl: don't manipulate the mm.mm_users field directly
Date: Thu, 11 Mar 2021 08:46:25 +0100 [thread overview]
Message-ID: <8daa454c-b2fd-d914-b170-62b6665e82d8@linux.ibm.com> (raw)
In-Reply-To: <20210310174405.51044-1-ldufour@linux.ibm.com>
On 10/03/2021 18:44, Laurent Dufour wrote:
> It is better to rely on the API provided by the MM layer instead of
> directly manipulating the mm_users field.
>
> Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
> ---
Thanks!
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
> drivers/misc/cxl/fault.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
> index 01153b74334a..60c829113299 100644
> --- a/drivers/misc/cxl/fault.c
> +++ b/drivers/misc/cxl/fault.c
> @@ -200,7 +200,7 @@ static struct mm_struct *get_mem_context(struct cxl_context *ctx)
> if (ctx->mm == NULL)
> return NULL;
>
> - if (!atomic_inc_not_zero(&ctx->mm->mm_users))
> + if (!mmget_not_zero(ctx->mm))
> return NULL;
>
> return ctx->mm;
>
next prev parent reply other threads:[~2021-03-11 7:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 17:44 [PATCH] cxl: don't manipulate the mm.mm_users field directly Laurent Dufour
2021-03-11 7:46 ` Frederic Barrat [this message]
2021-03-12 2:18 ` Andrew Donnellan
2021-03-31 1:09 ` Michael Ellerman
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