Subject: + mmnuma-reorganize-change_pmd_range.patch added to -mm tree
To: riel@xxxxxxxxxx,aarcange@xxxxxxxxxx,chegu_vinod@xxxxxx,gang.xing@xxxxxx,peterz@xxxxxxxxxxxxx,rientjes@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 19 Feb 2014 11:27:46 -0800
The patch titled
Subject: mm,numa: reorganize change_pmd_range()
has been added to the -mm tree. Its filename is
mmnuma-reorganize-change_pmd_range.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mmnuma-reorganize-change_pmd_range.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mmnuma-reorganize-change_pmd_range.patch
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------------------------------------------------------
From: Rik van Riel <riel@xxxxxxxxxx>
Subject: mm,numa: reorganize change_pmd_range()
Reorganize the order of ifs in change_pmd_range a little, in preparation
for the next patch.
Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Reported-by: Xing Gang <gang.xing@xxxxxx>
Tested-by: Chegu Vinod <chegu_vinod@xxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mprotect.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN mm/mprotect.c~mmnuma-reorganize-change_pmd_range mm/mprotect.c
--- a/mm/mprotect.c~mmnuma-reorganize-change_pmd_range
+++ a/mm/mprotect.c
@@ -118,6 +118,8 @@ static inline unsigned long change_pmd_r
unsigned long this_pages;
next = pmd_addr_end(addr, end);
+ if (!pmd_trans_huge(*pmd) && pmd_none_or_clear_bad(pmd))
+ continue;
if (pmd_trans_huge(*pmd)) {
if (next - addr != HPAGE_PMD_SIZE)
split_huge_page_pmd(vma, addr, pmd);
@@ -133,10 +135,9 @@ static inline unsigned long change_pmd_r
continue;
}
}
- /* fall through */
+ /* fall through, the trans huge pmd just split */
}
- if (pmd_none_or_clear_bad(pmd))
- continue;
+ VM_BUG_ON(pmd_trans_huge(*pmd));
this_pages = change_pte_range(vma, pmd, addr, next, newprot,
dirty_accountable, prot_numa);
pages += this_pages;
_
Patches currently in -mm which might be from riel@xxxxxxxxxx are
origin.patch
mm-hwpoison-release-page-on-pagehwpoison-in-__do_fault.patch
mm-close-pagetail-race.patch
mm-page_alloc-make-first_page-visible-before-pagetail.patch
mm-include-vm_mixedmap-flag-in-the-vm_special-list-to-avoid-munlocking.patch
mm-vmscan-respect-numa-policy-mask-when-shrinking-slab-on-direct-reclaim.patch
mm-vmscan-move-call-to-shrink_slab-to-shrink_zones.patch
mm-vmscan-remove-shrink_control-arg-from-do_try_to_free_pages.patch
mm-compaction-ignore-pageblock-skip-when-manually-invoking-compaction.patch
mm-vmstat-fix-up-zone-state-accounting.patch
fs-cachefiles-use-add_to_page_cache_lru.patch
lib-radix-tree-radix_tree_delete_item.patch
mm-shmem-save-one-radix-tree-lookup-when-truncating-swapped-pages.patch
mm-filemap-move-radix-tree-hole-searching-here.patch
mm-fs-prepare-for-non-page-entries-in-page-cache-radix-trees.patch
mm-fs-store-shadow-entries-in-page-cache.patch
mm-thrash-detection-based-file-cache-sizing.patch
lib-radix_tree-tree-node-interface.patch
mm-keep-page-cache-radix-tree-nodes-in-check.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix.patch
mm-compaction-avoid-isolating-pinned-pages.patch
mm-compactionc-mark-function-as-static.patch
mm-memoryc-mark-functions-as-static.patch
mm-mmapc-mark-function-as-static.patch
include-linux-mmh-remove-ifdef-condition.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
mm-rename-__do_fault-do_fault.patch
mm-do_fault-extract-to-call-vm_ops-do_fault-to-separate-function.patch
mm-introduce-do_read_fault.patch
mm-introduce-do_cow_fault.patch
mm-introduce-do_shared_fault-and-drop-do_fault.patch
mm-consolidate-code-to-call-vm_ops-page_mkwrite.patch
mm-consolidate-code-to-call-vm_ops-page_mkwrite-fix.patch
mm-consolidate-code-to-setup-pte.patch
schednuma-add-cond_resched-to-task_numa_work.patch
mmnuma-reorganize-change_pmd_range.patch
mmnuma-reorganize-change_pmd_range-fix.patch
move-mmu-notifier-call-from-change_protection-to-change_pmd_range.patch
fs-proc-meminfo-meminfo_proc_show-fix-typo-in-comment.patch
linux-next.patch
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