[folded-merged] mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix.patch removed from -mm tree

[folded-merged] mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix
has been removed from the -mm tree.  Its filename was
     mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix.patch

This patch was dropped because it was folded into mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio.patch

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix
Date: Tue Mar 26 11:30:46 AM PDT 2024

rewrap comment, per Matthew

Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |   18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

--- a/mm/vmscan.c~mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix
+++ a/mm/vmscan.c
@@ -1258,14 +1258,16 @@ retry:
 			if (folio_test_pmd_mappable(folio))
 				flags |= TTU_SPLIT_HUGE_PMD;
 			/*
-			 * Without TTU_SYNC, try_to_unmap will only begin to hold PTL
-			 * from the first present PTE within a large folio. Some initial
-			 * PTEs might be skipped due to races with parallel PTE writes
-			 * in which PTEs can be cleared temporarily before being written
-			 * new present values. This will lead to a large folio is still
-			 * mapped while some subpages have been partially unmapped after
-			 * try_to_unmap; TTU_SYNC helps try_to_unmap acquire PTL from the
-			 * first PTE, eliminating the influence of temporary PTE values.
+			 * Without TTU_SYNC, try_to_unmap will only begin to
+			 * hold PTL from the first present PTE within a large
+			 * folio. Some initial PTEs might be skipped due to
+			 * races with parallel PTE writes in which PTEs can be
+			 * cleared temporarily before being written new present
+			 * values. This will lead to a large folio is still
+			 * mapped while some subpages have been partially
+			 * unmapped after try_to_unmap; TTU_SYNC helps
+			 * try_to_unmap acquire PTL from the first PTE,
+			 * eliminating the influence of temporary PTE values.
 			 */
 			if (folio_test_large(folio) && list_empty(&folio->_deferred_list))
 				flags |= TTU_SYNC;
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio.patch
sh-remove-use-of-pg_arch_1-on-individual-pages-fix.patch
mm-gup-drop-folio_fast_pin_allowed-in-hugepd-processing-fix.patch
mm-allow-anon-exclusive-check-over-hugetlb-tail-pages-fix.patch
arm-mm-drop-vm_fault_badmap-vm_fault_badaccess-checkpatch-fixes.patch
mm-hugetlb-rename-dissolve_free_huge_pages-to-dissolve_free_hugetlb_folios-fix.patch
__mod_memcg_lruvec_state-enhance-diagnostics.patch
__mod_memcg_lruvec_state-enhance-diagnostics-fix.patch
binfmt_elf_fdpic-fix-proc-pid-auxv-checkpatch-fixes.patch