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[173.79.60.52]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-51a51ae8ee7sm49502301cf.24.2026.06.24.07.57.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2026 07:57:57 -0700 (PDT) From: Gregory Price To: linux-mm@kvack.org, nvdimm@lists.linux.dev Cc: linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, driver-core@lists.linux.dev, linux-kselftest@vger.kernel.org, kernel-team@meta.com, david@kernel.org, osalvador@suse.de, gregkh@linuxfoundation.org, rafael@kernel.org, dakr@kernel.org, djbw@kernel.org, vishal.l.verma@intel.com, dave.jiang@intel.com, akpm@linux-foundation.org, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org, gourry@gourry.net, alison.schofield@intel.com, Smita.KoralahalliChannabasappa@amd.com, ira.weiny@intel.com, apopple@nvidia.com Subject: [PATCH v5 2/9] mm/memory_hotplug: pass online_type to online_memory_block() via arg Date: Wed, 24 Jun 2026 10:57:37 -0400 Message-ID: <20260624145744.3532049-3-gourry@gourry.net> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260624145744.3532049-1-gourry@gourry.net> References: <20260624145744.3532049-1-gourry@gourry.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Modify online_memory_block() to accept the online type through its arg parameter rather than calling mhp_get_default_online_type() internally. This prepares for allowing callers to specify explicit online types. Update the caller in add_memory_resource() to pass the default online type via a local variable. No functional change. Acked-by: David Hildenbrand (Red Hat) Signed-off-by: Gregory Price --- mm/memory_hotplug.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 7ac19fab2263..6833208cc17c 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1337,7 +1337,9 @@ static int check_hotplug_memory_range(u64 start, u64 size) static int online_memory_block(struct memory_block *mem, void *arg) { - mem->online_type = mhp_get_default_online_type(); + enum mmop *online_type = arg; + + mem->online_type = *online_type; return device_online(&mem->dev); } @@ -1494,6 +1496,7 @@ static int create_altmaps_and_memory_blocks(int nid, struct memory_group *group, int add_memory_resource(int nid, struct resource *res, mhp_t mhp_flags) { struct mhp_params params = { .pgprot = pgprot_mhp(PAGE_KERNEL) }; + enum mmop online_type = mhp_get_default_online_type(); enum memblock_flags memblock_flags = MEMBLOCK_NONE; struct memory_group *group = NULL; u64 start, size; @@ -1582,7 +1585,8 @@ int add_memory_resource(int nid, struct resource *res, mhp_t mhp_flags) /* online pages if requested */ if (mhp_get_default_online_type() != MMOP_OFFLINE) - walk_memory_blocks(start, size, NULL, online_memory_block); + walk_memory_blocks(start, size, &online_type, + online_memory_block); return ret; error: -- 2.54.0