+ mm-pagewalk-add-api-documentation-for-walk_page_range_novma.patch added to mm-unstable branch

+ mm-pagewalk-add-api-documentation-for-walk_page_range_novma.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm: pagewalk: add api documentation for walk_page_range_novma()
has been added to the -mm mm-unstable branch.  Its filename is
     mm-pagewalk-add-api-documentation-for-walk_page_range_novma.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-pagewalk-add-api-documentation-for-walk_page_range_novma.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Rolf Eike Beer <eb@emlix.com>
Subject: mm: pagewalk: add api documentation for walk_page_range_novma()
Date: Mon, 22 Aug 2022 15:02:36 +0200

Link: https://lkml.kernel.org/r/8991525.CDJkKcVGEf@devpool047
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/pagewalk.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

--- a/mm/pagewalk.c~mm-pagewalk-add-api-documentation-for-walk_page_range_novma
+++ a/mm/pagewalk.c
@@ -493,7 +493,15 @@ int walk_page_range(struct mm_struct *mm
 	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
_

Patches currently in -mm which might be from eb@emlix.com are

mm-pagewalk-make-error-checks-more-obvious.patch
mm-pagewalk-dont-check-vma-in-walk_page_range_novma.patch
mm-pagewalk-fix-documentation-of-pte-hole-handling.patch
mm-pagewalk-add-api-documentation-for-walk_page_range_novma.patch
mm-pagewalk-allow-walk_page_range_novma-without-mm.patch
mm-pagewalk-move-variables-to-more-local-scope-tweak-loops.patch