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From: Kaitao Cheng <kaitao.cheng@linux.dev>
To: "Oscar Salvador (SUSE)" <osalvador@kernel.org>,
	David Hildenbrand <david@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Lorenzo Stoakes <ljs@kernel.org>,
	"Liam R . Howlett" <liam@infradead.org>,
	Vlastimil Babka <vbabka@kernel.org>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Dan Williams <djbw@kernel.org>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Alison Schofield <alison.schofield@intel.com>,
	Ira Weiny <iweiny@kernel.org>,
	Muchun Song <muchun.song@linux.dev>,
	linux-mm@kvack.org, nvdimm@lists.linux.dev,
	linux-kernel@vger.kernel.org,
	Kaitao Cheng <chengkaitao@kylinos.cn>
Subject: Re: [PATCH 2/2] nvdimm/pmem: Remove test_and_clear_pmem_poison()
Date: Tue, 22 Sep 2026 12:44:19 +0800	[thread overview]
Message-ID: <10159c57-091e-474a-a154-4f675a39dcc2@linux.dev> (raw)
In-Reply-To: <arIBvO3cFQ53ivG3@localhost.localdomain>

在 2026/9/22 12:19, Oscar Salvador (SUSE) 写道:
> On Thu, Sep 03, 2026 at 01:35:35PM +0800, Kaitao Cheng wrote:
>> From: Kaitao Cheng <chengkaitao@kylinos.cn>
>>
>> TestClearPageHWPoison() is now defined regardless of whether
>> CONFIG_MEMORY_FAILURE is enabled, returning false when memory failure
>> handling is unavailable.
>>
>> The test_and_clear_pmem_poison() wrapper duplicates this configuration
>> handling and has no other pmem-specific behavior.
>>
>> Call TestClearPageHWPoison() directly and remove the redundant wrapper.
>> This also removes the need to include page-flags.h from pmem.h.
>>
>> No functional change is intended.
>>
>> Signed-off-by: Kaitao Cheng <chengkaitao@kylinos.cn>
> 
> Nice cleanup, but as David noted, please squash patch#1 into this one.

Although NVDIMM is currently the only external user of TestClearPageHWPoison,
I still consider it a generic declaration. Combining the two patches might
give the impression that TestClearPageHWPoison exists solely to serve a
specific driver.

That said, I’m not opposed to merging the two patches, as doing so would
make the submission more concise.

I think both approaches have their own advantages and disadvantages,
which is why I haven’t sent a v2 yet.

> Reviewed-by: Oscar Salvador <osalvador@suse.de>
> 
>  


-- 
Thanks
Kaitao Cheng


  reply	other threads:[~2026-09-22  4:44 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-03  5:35 [PATCH 0/2] Make HWPoison helpers config-independent Kaitao Cheng
2026-09-03  5:35 ` [PATCH 1/2] mm/page-flags: Define HWPoison test-and-change helpers unconditionally Kaitao Cheng
2026-09-03  6:15   ` Muchun Song
2026-09-07 15:42   ` David Hildenbrand (Arm)
2026-09-03  5:35 ` [PATCH 2/2] nvdimm/pmem: Remove test_and_clear_pmem_poison() Kaitao Cheng
2026-09-03  6:17   ` Muchun Song
2026-09-07 15:42   ` David Hildenbrand (Arm)
2026-09-22  4:19   ` Oscar Salvador (SUSE)
2026-09-22  4:44     ` Kaitao Cheng [this message]
2026-09-22 13:57       ` David Hildenbrand (Arm)

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