From 3a5a06554566fcc9f7de7327cfc365ed384d396c Mon Sep 17 00:00:00 2001
From: Balbir Singh <balbirs@nvidia.com>
Date: Wed, 1 Oct 2025 16:56:53 +1000
Subject: mm/zone_device: rename page_free callback to folio_free
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Change page_free to folio_free to make the folio support for
zone device-private more consistent. The PCI P2PDMA callback
has also been updated and changed to folio_free() as a result.

For drivers that do not support folios (yet), the folio is
converted back into page via &folio->page and the page is used
as is, in the current callback implementation.

Link: https://lkml.kernel.org/r/20251001065707.920170-3-balbirs@nvidia.com
Signed-off-by: Balbir Singh <balbirs@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Ying Huang <ying.huang@linux.alibaba.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Mika Penttilä <mpenttil@redhat.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Francois Dugast <francois.dugast@intel.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 Documentation/mm/memory-model.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Documentation/mm')

diff --git a/Documentation/mm/memory-model.rst b/Documentation/mm/memory-model.rst
index 5f3eafbbc520..7957122039e8 100644
--- a/Documentation/mm/memory-model.rst
+++ b/Documentation/mm/memory-model.rst
@@ -165,7 +165,7 @@ The users of `ZONE_DEVICE` are:
 * pmem: Map platform persistent memory to be used as a direct-I/O target
   via DAX mappings.
 
-* hmm: Extend `ZONE_DEVICE` with `->page_fault()` and `->page_free()`
+* hmm: Extend `ZONE_DEVICE` with `->page_fault()` and `->folio_free()`
   event callbacks to allow a device-driver to coordinate memory management
   events related to device-memory, typically GPU memory. See
   Documentation/mm/hmm.rst.
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