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Subject[PATCH 4/6] mm: pagewalk: add api documentation for walk_page_range_novma()
Date
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
---
mm/pagewalk.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index a06eb100fe4e..dc3c850cd148 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -493,7 +493,15 @@ int walk_page_range(struct mm_struct *mm, unsigned long start,
return 0;
}

-/*
+/**
+ * walk_page_range_novma - walk a range of pagetables not backed by a vma
+ * @mm: mm_struct representing the target process of page table walk
+ * @start: start address of the virtual address range
+ * @end: end address of the virtual address range
+ * @ops: operation to call during the walk
+ * @pgd: pgd to walk if different from mm->pgd
+ * @private: private data for callbacks' usage
+ *
* Similar to walk_page_range() but can walk any page tables even if they are
* not backed by VMAs. Because 'unusual' entries may be walked this function
* will also not lock the PTEs for the pte_entry() callback. This is useful for
--
2.37.2
--
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055

emlix - smart embedded open source



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