linux-kernel - Re: [RFC PATCH] mm/hugetlb: make hugetlb

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Message-Id: <bb3054c8-3bf3-ba54-793c-a6939bc0acb4@linux.ibm.com>
Date:   Thu, 6 Sep 2018 09:33:45 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>,
        Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] mm/hugetlb: make hugetlb_lock irq safe

On 09/06/2018 05:21 AM, Mike Kravetz wrote:

> 
> BTW, free_huge_page called by put_page for hugetlbfs pages may also take
> a subpool specific lock via spin_lock().  See hugepage_subpool_put_pages.
> So, this would also need to take irq context into account.
> 

I missed that. I can take care of that in next patch update based on 
what we decide w.r.t this patch.

-aneesh