linux-kernel - Re: [PATCH] powerpc/mm: Refactor the floor/ceiling check in hugetlb range freeing functions

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Date:   Tue, 15 Dec 2020 21:48:56 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/mm: Refactor the floor/ceiling check in hugetlb range freeing functions

On Fri, 6 Nov 2020 13:20:54 +0000 (UTC), Christophe Leroy wrote:
> All hugetlb range freeing functions have a verification like the following,
> which only differs by the mask used, depending on the page table level.
> 
> 	start &= MASK;
> 	if (start < floor)
> 		return;
> 	if (ceiling) {
> 		ceiling &= MASK;
> 		if (! ceiling)
> 			return;
> 		}
> 	if (end - 1 > ceiling - 1)
> 		return;
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/mm: Refactor the floor/ceiling check in hugetlb range freeing functions
      https://git.kernel.org/powerpc/c/7bfe54b5f16561bb703de6482f880614ada8dbf2

cheers