Subject: + mm-dirty-accountable-change-only-apply-to-non-prot-numa-case.patch added to -mm tree
To: aneesh.kumar@xxxxxxxxxxxxxxxxxx,benh@xxxxxxxxxxxxxxxxxxx,mgorman@xxxxxxx,paulus@xxxxxxxxx,riel@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 13 Feb 2014 15:06:52 -0800
The patch titled
Subject: mm: dirty accountable change only apply to non prot numa case
has been added to the -mm tree. Its filename is
mm-dirty-accountable-change-only-apply-to-non-prot-numa-case.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-dirty-accountable-change-only-apply-to-non-prot-numa-case.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-dirty-accountable-change-only-apply-to-non-prot-numa-case.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/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Subject: mm: dirty accountable change only apply to non prot numa case
So move it within the if loop
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mprotect.c | 21 +++++++--------------
1 file changed, 7 insertions(+), 14 deletions(-)
diff -puN mm/mprotect.c~mm-dirty-accountable-change-only-apply-to-non-prot-numa-case mm/mprotect.c
--- a/mm/mprotect.c~mm-dirty-accountable-change-only-apply-to-non-prot-numa-case
+++ a/mm/mprotect.c
@@ -58,6 +58,13 @@ static unsigned long change_pte_range(st
if (pte_numa(ptent))
ptent = pte_mknonnuma(ptent);
ptent = pte_modify(ptent, newprot);
+ /*
+ * Avoid taking write faults for pages we
+ * know to be dirty.
+ */
+ if (dirty_accountable && pte_dirty(ptent))
+ ptent = pte_mkwrite(ptent);
+ ptep_modify_prot_commit(mm, addr, pte, ptent);
updated = true;
} else {
struct page *page;
@@ -72,22 +79,8 @@ static unsigned long change_pte_range(st
}
}
}
-
- /*
- * Avoid taking write faults for pages we know to be
- * dirty.
- */
- if (dirty_accountable && pte_dirty(ptent)) {
- ptent = pte_mkwrite(ptent);
- updated = true;
- }
-
if (updated)
pages++;
-
- /* Only !prot_numa always clears the pte */
- if (!prot_numa)
- ptep_modify_prot_commit(mm, addr, pte, ptent);
} else if (IS_ENABLED(CONFIG_MIGRATION) && !pte_file(oldpte)) {
swp_entry_t entry = pte_to_swp_entry(oldpte);
_
Patches currently in -mm which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
powerpc-mm-add-new-set-flag-argument-to-pte-pmd-update-function.patch
mm-dirty-accountable-change-only-apply-to-non-prot-numa-case.patch
mm-use-ptep-pmdp_set_numa-for-updating-_page_numa-bit.patch
mm-hugetlb-unify-region-structure-handling.patch
mm-hugetlb-improve-cleanup-resv_map-parameters.patch
mm-hugetlb-remove-resv_map_put.patch
mm-hugetlb-use-vma_resv_map-map-types.patch
mm-hugetlb-improve-page-fault-scalability.patch
mm-hugetlb-improve-page-fault-scalability-fix.patch
pagewalk-update-page-table-walker-core.patch
pagewalk-add-walk_page_vma.patch
smaps-redefine-callback-functions-for-page-table-walker.patch
clear_refs-redefine-callback-functions-for-page-table-walker.patch
pagemap-redefine-callback-functions-for-page-table-walker.patch
numa_maps-redefine-callback-functions-for-page-table-walker.patch
memcg-redefine-callback-functions-for-page-table-walker.patch
madvise-redefine-callback-functions-for-page-table-walker.patch
arch-powerpc-mm-subpage-protc-use-walk_page_vma-instead-of-walk_page_range.patch
pagewalk-remove-argument-hmask-from-hugetlb_entry.patch
mempolicy-apply-page-table-walker-on-queue_pages_range.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
