The patch titled
Subject: mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix
has been added to the -mm mm-unstable branch. Its filename is
mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix
Date: Wed Jun 29 04:27:39 PM PDT 2022
fix comment typo, per David. Re-layout comment
Cc: Alex Sierra <alex.sierra@xxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: Jerome Glisse <jglisse@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Ralph Campbell <rcampbell@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/mm/memory.c~mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix
+++ a/mm/memory.c
@@ -632,16 +632,16 @@ struct page *vm_normal_page(struct vm_ar
return NULL;
if (is_zero_pfn(pfn))
return NULL;
+ /*
+ * NOTE: New users of ZONE_DEVICE will not set pte_devmap()
+ * and will have refcounts incremented on their struct pages
+ * when they are inserted into PTEs, thus they are safe to
+ * return here. Legacy ZONE_DEVICE pages that set pte_devmap()
+ * do not have refcounts. Example of legacy ZONE_DEVICE is
+ * MEMORY_DEVICE_FS_DAX type in pmem or virtio_fs drivers.
+ */
if (pte_devmap(pte))
-/*
- * NOTE: New uers of ZONE_DEVICE will not set pte_devmap() and will have
- * refcounts incremented on their struct pages when they are inserted into
- * PTEs, thus they are safe to return here. Legacy ZONE_DEVICE pages that set
- * pte_devmap() do not have refcounts. Example of legacy ZONE_DEVICE is
- * MEMORY_DEVICE_FS_DAX type in pmem or virtio_fs drivers.
- */
return NULL;
-
print_bad_pte(vma, addr, pte, NULL);
return NULL;
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
android-binder-stop-saving-a-pointer-to-the-vma-fix.patch
mm-shrinkers-introduce-debugfs-interface-for-memory-shrinkers-fix.patch
mm-shrinkers-add-scan-interface-for-shrinker-debugfs-fix-fix.patch
mm-drop-oom-code-from-exit_mmap-fix-fix.patch
mm-add-merging-after-mremap-resize-checkpatch-fixes.patch
mm-handling-non-lru-pages-returned-by-vm_normal_pages-fix.patch
mm-factor-helpers-for-memory_failure_dev_pagemap-fix.patch
xfs-support-cow-in-fsdax-mode-fix.patch
mm-thp-kill-transparent_hugepage_active-fix.patch
mm-thp-kill-transparent_hugepage_active-fix-fix.patch
mm-convert-destroy_compound_page-to-destroy_large_folio-fix.patch
mm-madvise-minor-cleanup-for-swapin_walk_pmd_entry-fix.patch
mm-docs-fix-comments-that-mention-mem_hotplug_end-fix.patch
