+ mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch added to -mm tree

+ mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/debug_vm_pgtable: update comments regarding migration swap entries
has been added to the -mm tree.  Its filename is
     mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch

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 and is updated
there every 3-4 working days

------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@arm.com>
Subject: mm/debug_vm_pgtable: update comments regarding migration swap entries

The commit 4dd845b5a3e5 ("mm/swapops: rework swap entry manipulation code")
had changed migtation entry related helpers. Just update debug_vm_pgatble()
synced documentation to reflect those changes.

Link: https://lkml.kernel.org/r/1641880417-24848-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/vm/arch_pgtable_helpers.rst |   14 +++++++-------
 mm/debug_vm_pgtable.c                     |    4 ++--
 2 files changed, 9 insertions(+), 9 deletions(-)

--- a/Documentation/vm/arch_pgtable_helpers.rst~mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries
+++ a/Documentation/vm/arch_pgtable_helpers.rst
@@ -247,12 +247,12 @@ SWAP Page Table Helpers
 | __swp_to_pmd_entry        | Creates a mapped PMD from a swapped entry (arch) |
 +---------------------------+--------------------------------------------------+
 | is_migration_entry        | Tests a migration (read or write) swapped entry  |
-+---------------------------+--------------------------------------------------+
-| is_write_migration_entry  | Tests a write migration swapped entry            |
-+---------------------------+--------------------------------------------------+
-| make_migration_entry_read | Converts into read migration swapped entry       |
-+---------------------------+--------------------------------------------------+
-| make_migration_entry      | Creates a migration swapped entry (read or write)|
-+---------------------------+--------------------------------------------------+
++-------------------------------+----------------------------------------------+
+| is_writable_migration_entry   | Tests a write migration swapped entry        |
++-------------------------------+----------------------------------------------+
+| make_readable_migration_entry | Creates a read migration swapped entry       |
++-------------------------------+----------------------------------------------+
+| make_writable_migration_entry | Creates a write migration swapped entry      |
++-------------------------------+----------------------------------------------+
 
 [1] https://lore.kernel.org/linux-mm/20181017020930.GN30832@redhat.com/
--- a/mm/debug_vm_pgtable.c~mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries
+++ a/mm/debug_vm_pgtable.c
@@ -888,8 +888,8 @@ static void __init swap_migration_tests(
 	pr_debug("Validating swap migration\n");
 
 	/*
-	 * make_migration_entry() expects given page to be
-	 * locked, otherwise it stumbles upon a BUG_ON().
+	 * make_[readable|writable]_migration_entry() expects given page to
+	 * be locked, otherwise it stumbles upon a BUG_ON().
 	 */
 	__SetPageLocked(page);
 	swp = make_writable_migration_entry(page_to_pfn(page));
_

Patches currently in -mm which might be from anshuman.khandual@arm.com are

mm-debug_vm_pgtable-update-comments-regarding-migration-swap-entries.patch
mm-page_alloc-modify-the-comment-section-for-alloc_contig_pages.patch
mm-migration-add-trace-events-for-thp-migrations.patch
mm-thp-drop-unused-trace-events-hugepage_.patch