+ mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch added to -mm tree

* + mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch added to -mm tree
@ 2022-04-13 21:33 Andrew Morton
  2022-04-20  9:12 ` Vlastimil Babka
  0 siblings, 1 reply; 3+ messages in thread
From: Andrew Morton @ 2022-04-13 21:33 UTC (permalink / raw)
  To: mm-commits, david, akpm


The patch titled
     Subject: mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix
has been added to the -mm tree.  Its filename is
     mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch

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------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix

Link: https://lkml.kernel.org/r/ac725bcb-313a-4fff-250a-68ba9a8f85fb@redhat.com

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

--- a/mm/memory.c~mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix
+++ a/mm/memory.c
@@ -3747,7 +3747,7 @@ vm_fault_t do_swap_page(struct vm_fault
 			 */
 			exclusive = true;
 		} else if (exclusive && PageWriteback(page) &&
-			   !(swp_swap_info(entry)->flags & SWP_STABLE_WRITES)) {
+			  (swp_swap_info(entry)->flags & SWP_STABLE_WRITES)) {
 			/*
 			 * This is tricky: not all swap backends support
 			 * concurrent page modifications while under writeback.
_

Patches currently in -mm which might be from david@redhat.com are

mm-rmap-fix-missing-swap_free-in-try_to_unmap-after-arch_unmap_one-failed.patch
mm-hugetlb-take-src_mm-write_protect_seq-in-copy_hugetlb_page_range.patch
mm-memory-slightly-simplify-copy_present_pte.patch
mm-rmap-split-page_dup_rmap-into-page_dup_file_rmap-and-page_try_dup_anon_rmap.patch
mm-rmap-convert-rmap-flags-to-a-proper-distinct-rmap_t-type.patch
mm-rmap-remove-do_page_add_anon_rmap.patch
mm-rmap-pass-rmap-flags-to-hugepage_add_anon_rmap.patch
mm-rmap-drop-compound-parameter-from-page_add_new_anon_rmap.patch
mm-rmap-use-page_move_anon_rmap-when-reusing-a-mapped-pageanon-page-exclusively.patch
mm-huge_memory-remove-outdated-vm_warn_on_once_page-from-unmap_page.patch
mm-page-flags-reuse-pg_mappedtodisk-as-pg_anon_exclusive-for-pageanon-pages.patch
mm-remember-exclusively-mapped-anonymous-pages-with-pg_anon_exclusive.patch
mm-gup-disallow-follow_pagefoll_pin.patch
mm-support-gup-triggered-unsharing-of-anonymous-pages.patch
mm-gup-trigger-fault_flag_unshare-when-r-o-pinning-a-possibly-shared-anonymous-page.patch
mm-gup-sanity-check-with-config_debug_vm-that-anonymous-pages-are-exclusive-when-unpinning.patch
mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit.patch
mm-swap-remember-pg_anon_exclusive-via-a-swp-pte-bit-fix.patch
mm-debug_vm_pgtable-add-tests-for-__have_arch_pte_swp_exclusive.patch
x86-pgtable-support-__have_arch_pte_swp_exclusive.patch
arm64-pgtable-support-__have_arch_pte_swp_exclusive.patch
s390-pgtable-cleanup-description-of-swp-pte-layout.patch
s390-pgtable-support-__have_arch_pte_swp_exclusive.patch
powerpc-pgtable-remove-_page_bit_swap_type-for-book3s.patch
powerpc-pgtable-support-__have_arch_pte_swp_exclusive-for-book3s.patch


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