From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Audra Mitchell <audra@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org,
rppt@kernel.org, surenb@google.com, mhocko@suse.com,
shuah@kernel.org, usama.anjum@collabora.com,
colin.i.king@gmail.com, avagin@google.com,
linux-kselftest@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] selftests/mm: Fix soft-dirty kselftest supported check
Date: Fri, 27 Mar 2026 11:08:57 +0100 [thread overview]
Message-ID: <7d6b4401-e230-4ca7-b64f-c1277fa643b8@kernel.org> (raw)
In-Reply-To: <acQMDW9qM2MtYpkT@fedora>
On 3/25/26 17:23, Audra Mitchell wrote:
> On Tue, Mar 24, 2026 at 04:24:45PM -0700, Andrew Morton wrote:
>> On Tue, 24 Mar 2026 16:23:24 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
>>
>>>
>
> Wouldn't it be prudent to also update __pagemap_scan_get_categories
> return type to a long? Right now its uint64_t, but we expect a long
> to be returned from the ioctl:
>
> static long do_pagemap_cmd(struct file *file, unsigned int cmd,
> unsigned long arg)
>
> I've made the other changes, but I'll wait to push the next version after
> this feedback. Thanks!
Yes, definitely.
I was under the impression that __pagemap_scan_get_categories() could
actually return some kind of a mask that would warrant the uint64_t. But
we really just return the result from the ioctl().
And ioctl() is defined to return an int. So you could just return an int
there.
--
Cheers,
David
next prev parent reply other threads:[~2026-03-27 10:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-18 18:42 [PATCH] selftests/mm: Fix soft-dirty kselftest supported check Audra Mitchell
2026-02-24 16:15 ` David Hildenbrand (Arm)
2026-03-17 15:08 ` Audra Mitchell
2026-03-18 8:17 ` David Hildenbrand (Arm)
2026-03-19 18:59 ` Audra Mitchell
2026-03-20 11:26 ` David Hildenbrand (Arm)
2026-03-20 18:39 ` [PATCH V2] " Audra Mitchell
2026-03-20 18:39 ` [PATCH] " Audra Mitchell
2026-03-20 20:53 ` Andrew Morton
2026-03-23 11:56 ` David Hildenbrand (Arm)
2026-03-24 23:23 ` Andrew Morton
2026-03-24 23:24 ` Andrew Morton
2026-03-25 16:23 ` Audra Mitchell
2026-03-27 10:08 ` David Hildenbrand (Arm) [this message]
2026-03-27 10:52 ` Lorenzo Stoakes (Oracle)
2026-03-27 10:58 ` Lorenzo Stoakes (Oracle)
2026-03-27 11:15 ` Lorenzo Stoakes (Oracle)
2026-03-27 11:14 ` Lorenzo Stoakes (Oracle)
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