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From: Kaitao Cheng <kaitao.cheng@linux.dev>
To: Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.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>
Cc: Muchun Song <muchun.song@linux.dev>,
	linux-mm@kvack.org, nvdimm@lists.linux.dev,
	linux-kernel@vger.kernel.org,
	Kaitao Cheng <kaitao.cheng@linux.dev>
Subject: [PATCH 0/2] Make HWPoison helpers config-independent
Date: Thu,  3 Sep 2026 13:35:33 +0800	[thread overview]
Message-ID: <20260903053535.17611-1-kaitao.cheng@linux.dev> (raw)

Make the HWPoison page flag's test-and-set and test-and-clear accessors
available regardless of CONFIG_MEMORY_FAILURE. When memory failure handling
is disabled, the accessors return false, matching the absence of HWPoison
state and providing a consistent interface across configurations.

Use the config-independent interface in the pmem driver to remove its
private test_and_clear_pmem_poison() wrapper and the associated header
dependency. No functional change is intended.

Kaitao Cheng (2):
  mm/page-flags: Define HWPoison test-and-change helpers unconditionally
  nvdimm/pmem: Remove test_and_clear_pmem_poison()

 drivers/nvdimm/pmem.c      |  2 +-
 drivers/nvdimm/pmem.h      | 12 ------------
 include/linux/page-flags.h |  1 +
 3 files changed, 2 insertions(+), 13 deletions(-)

-- 
2.50.1 (Apple Git-155)


             reply	other threads:[~2026-09-03  5:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-03  5:35 Kaitao Cheng [this message]
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
2026-09-03  5:35 ` [PATCH 2/2] nvdimm/pmem: Remove test_and_clear_pmem_poison() Kaitao Cheng
2026-09-03  6:17   ` Muchun Song

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