linux-kernel - Re: [PATCH v14 09/13] vduse: take out allocations from vduse_dev_alloc

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Message-ID: <CACGkMEt6_cbOM+=dfb1MhNfBxrT9PKe+5qTC2PMgp+uZgHAzhw@mail.gmail.com>
Date: Mon, 19 Jan 2026 14:42:08 +0800
From: Jason Wang <jasowang@...hat.com>
To: Eugenio Pérez <eperezma@...hat.com>
Cc: "Michael S . Tsirkin" <mst@...hat.com>, Laurent Vivier <lvivier@...hat.com>, linux-kernel@...r.kernel.org, 
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Maxime Coquelin <mcoqueli@...hat.com>, 
	Cindy Lu <lulu@...hat.com>, virtualization@...ts.linux.dev, 
	Yongji Xie <xieyongji@...edance.com>, Stefano Garzarella <sgarzare@...hat.com>
Subject: Re: [PATCH v14 09/13] vduse: take out allocations from vduse_dev_alloc_coherent

On Fri, Jan 16, 2026 at 10:05 PM Eugenio Pérez <eperezma@...hat.com> wrote:
>
> The function vduse_dev_alloc_coherent will be called under rwlock in
> next patches.  Make it out of the lock to avoid increasing its fail
> rate.
>
> Signed-off-by: Eugenio Pérez <eperezma@...hat.com>
> ---
> v12:
> * Avoid free_pages_exact(NULL, size) in case vduse_domain_alloc_coherent
>   fails (MST).
>
> v11: Remove duplicated call to free_pages_exact (Jason).
> ---

Acked-by: Jason Wang <jasowang@...hat.com>

Thanks