From: Max Kellermann <max.kellermann@ionos.com>
To: David Hildenbrand <david@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
lorenzo.stoakes@oracle.com, ziy@nvidia.com,
baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com,
npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com,
baohua@kernel.org, shikemeng@huaweicloud.com,
kasong@tencent.com, nphamcs@gmail.com, bhe@redhat.com,
chrisl@kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] huge_mm.h: is_huge_zero_folio(NULL) should return false
Date: Wed, 27 Aug 2025 12:13:34 +0200 [thread overview]
Message-ID: <CAKPOu+_8_gfko=Sh-YKpbgcMy0aJB=m9yrC5JJKEZm=yeYPOgA@mail.gmail.com> (raw)
In-Reply-To: <e5783c3d-7eeb-41d9-9fe7-730155f9bf17@redhat.com>
On Wed, Aug 27, 2025 at 11:36 AM David Hildenbrand <david@redhat.com> wrote:
> Why should it be allowed to pass in garbage (folio == NULL) into a
> function that operates on valid folios?
This patch isn't about the function parameter but about the global
variable being NULL.
(Don't mix up with my other patch.)
next prev parent reply other threads:[~2025-08-27 10:13 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-26 23:16 [PATCH 1/2] huge_mm.h: is_huge_zero_folio(NULL) should return false Max Kellermann
2025-08-26 23:16 ` [PATCH 2/2] mm/swap: add BUG_ON(folio==NULL) to folios_put_refs() Max Kellermann
2025-08-27 1:42 ` Zi Yan
2025-08-27 2:12 ` Chris Li
2025-08-27 9:38 ` David Hildenbrand
2025-08-27 1:19 ` [PATCH 1/2] huge_mm.h: is_huge_zero_folio(NULL) should return false Zi Yan
2025-08-27 1:55 ` Andrew Morton
2025-08-27 4:39 ` Max Kellermann
2025-08-27 9:36 ` David Hildenbrand
2025-08-27 10:13 ` Max Kellermann [this message]
2025-08-27 11:56 ` David Hildenbrand
2025-08-27 13:06 ` Max Kellermann
2025-08-27 14:34 ` David Hildenbrand
2025-08-27 15:03 ` [PATCH v2] huge_mm.h: disallow is_huge_zero_folio(NULL) Max Kellermann
2025-08-27 15:16 ` Lorenzo Stoakes
2025-08-27 15:38 ` Max Kellermann
2025-08-27 20:01 ` David Hildenbrand
2025-08-27 20:26 ` David Hildenbrand
2025-08-27 20:44 ` Lorenzo Stoakes
2025-08-28 8:48 ` [PATCH v3] " Max Kellermann
2025-08-28 9:35 ` Lorenzo Stoakes
2025-08-29 1:25 ` Zi Yan
2025-08-27 23:53 ` [PATCH v2] " Andrew Morton
2025-08-28 5:17 ` Max Kellermann
2025-08-28 7:57 ` David Hildenbrand
2025-08-27 15:05 ` [PATCH 1/2] huge_mm.h: is_huge_zero_folio(NULL) should return false Max Kellermann
2025-08-27 9:35 ` David Hildenbrand
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