linux-kernel - Re: [RFC PATCH 4/5] mm, memory_hotplug: print reason for the offlining failure

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Message-ID: <20181108080145.GM27423@dhcp22.suse.cz>
Date:   Thu, 8 Nov 2018 09:01:45 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, Oscar Salvador <OSalvador@...e.com>,
        Baoquan He <bhe@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 4/5] mm, memory_hotplug: print reason for the
 offlining failure

On Wed 07-11-18 14:04:13, Andrew Morton wrote:
[...]
> Fix:
> 
> --- a/mm/memory_hotplug.c~mm-memory_hotplug-print-reason-for-the-offlining-failure-fix
> +++ a/mm/memory_hotplug.c
> @@ -1576,7 +1576,7 @@ static int __ref __offline_pages(unsigne
>  				       MIGRATE_MOVABLE, true);
>  	if (ret) {
>  		mem_hotplug_done();
> -		reason = "failed to isolate range";
> +		reason = "failure to isolate range";
>  		goto failed_removal
>  	}
>  
> @@ -1587,7 +1587,7 @@ static int __ref __offline_pages(unsigne
>  	ret = memory_notify(MEM_GOING_OFFLINE, &arg);
>  	ret = notifier_to_errno(ret);
>  	if (ret) {
> -		reason = "notifiers failure";
> +		reason = "notifier failure";
>  		goto failed_removal_isolated;
>  	}
>  
> @@ -1616,7 +1616,7 @@ repeat:
>  	 */
>  	ret = dissolve_free_huge_pages(start_pfn, end_pfn);
>  	if (ret) {
> -		reason = "fails to disolve hugetlb pages";
> +		reason = "failure to dissolve huge pages";
>  		goto failed_removal_isolated;
>  	}
>  	/* check again */
> _
> 

LGTM, thanks!

-- 
Michal Hocko
SUSE Labs