The patch titled
pagewalk: fix code comment for THP
has been added to the -mm tree. Its filename is
pagewalk-fix-code-comment-for-thp.patch
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------------------------------------------------------
Subject: pagewalk: fix code comment for THP
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
commit bae9c19bf1 ("thp: split_huge_page_mm/vma") changed locking behavior
of walk_page_range(). Thus this patch changes the comment too.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Hiroyuki Kamezawa <kamezawa.hiroyuki@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/pagewalk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN mm/pagewalk.c~pagewalk-fix-code-comment-for-thp mm/pagewalk.c
--- a/mm/pagewalk.c~pagewalk-fix-code-comment-for-thp
+++ a/mm/pagewalk.c
@@ -176,7 +176,8 @@ static int walk_hugetlb_range(struct vm_
* associated range, and a copy of the original mm_walk for access to
* the ->private or ->mm fields.
*
- * No locks are taken, but the bottom level iterator will map PTE
+ * Usually no locks are taken, but splitting transparent huge page may
+ * take page table lock. And the bottom level iterator will map PTE
* directories from highmem if necessary.
*
* If any callback returns a non-zero value, the walk is aborted and
_
Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are
vmscanmemcg-memcg-aware-swap-token.patch
vmscanmemcg-memcg-aware-swap-token-fix.patch
vmscanmemcg-memcg-aware-swap-token-fix-checkpatch-fixes.patch
vmscan-implement-swap-token-trace.patch
vmscan-implement-swap-token-priority-aging.patch
memcg-add-documentation-for-the-memorynumastat-api.patch
memcg-add-documentation-for-the-memorynumastat-api-fix.patch
mm-increase-reclaim_distance-to-30.patch
slab-use-numa_no_node.patch
mm-swap-token-fix-dead-link.patch
mm-swap-token-makes-global-variables-to-function-local.patch
mm-swap-token-add-a-comment-for-priority-aging.patch
pagewalk-fix-walk_page_range-dont-check-find_vma-result-properly.patch
pagewalk-dont-look-up-vma-if-walk-hugetlb_entry-is-unused.patch
pagewalk-add-locking-rule-comments.patch
pagewalk-add-locking-rule-comments-fix.patch
pagewalk-fix-code-comment-for-thp.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-fix-2.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-cpusets-initialize-spread-rotor-lazily.patch
cpumask-convert-for_each_cpumask-with-for_each_cpu.patch
cpumask-alloc_cpumask_var-use-numa_no_node.patch
cpumask-add-cpumask_var_t-documentation.patch
kexec-remove-kmsg_dump_kexec.patch
kexec-remove-kmsg_dump_kexec-fix.patch
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