linux-kernel - Re: [PATCH RFCv2 1/6] mm/memory_hotplug: make remove_memory() take the device_hotplug

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Date:   Thu, 30 Aug 2018 19:35:48 +0000
From:   Pasha Tatashin <Pavel.Tatashin@...rosoft.com>
To:     David Hildenbrand <david@...hat.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Rashmica Gupta <rashmica.g@...il.com>,
        Michael Neuling <mikey@...ling.org>,
        Balbir Singh <bsingharora@...il.com>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
        John Allen <jallen@...ux.vnet.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Oscar Salvador <osalvador@...e.de>,
        YASUAKI ISHIMATSU <yasu.isimatu@...il.com>,
        Mathieu Malaterre <malat@...ian.org>
Subject: Re: [PATCH RFCv2 1/6] mm/memory_hotplug: make remove_memory() take
 the device_hotplug_lock

> +
> +void __ref remove_memory(int nid, u64 start, u64 size)

Remove __ref, otherwise looks good:

Reviewed-by: Pavel Tatashin <pavel.tatashin@...rosoft.com>

> +{
> +	lock_device_hotplug();
> +	__remove_memory(nid, start, size);
> +	unlock_device_hotplug();
> +}
>  EXPORT_SYMBOL_GPL(remove_memory);
>  #endif /* CONFIG_MEMORY_HOTREMOVE */
>