The patch titled
Subject: mm, thp: fix comment inconsistency for swapin readahead functions
has been added to the -mm tree. Its filename is
mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions.patch
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------------------------------------------------------
From: Ebru Akagunduz <ebru.akagunduz@xxxxxxxxx>
Subject: mm, thp: fix comment inconsistency for swapin readahead functions
After fixing swapin issues, comment lines stayed as in old version.
This patch updates the comments.
Link: http://lkml.kernel.org/r/1468109345-32258-1-git-send-email-ebru.akagunduz@xxxxxxxxx
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@xxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
Cc: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/khugepaged.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN mm/khugepaged.c~mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions mm/khugepaged.c
--- a/mm/khugepaged.c~mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions
+++ a/mm/khugepaged.c
@@ -891,9 +891,10 @@ static bool __collapse_huge_page_swapin(
/* do_swap_page returns VM_FAULT_RETRY with released mmap_sem */
if (ret & VM_FAULT_RETRY) {
down_read(&mm->mmap_sem);
- /* vma is no longer available, don't continue to swapin */
- if (hugepage_vma_revalidate(mm, address))
+ if (hugepage_vma_revalidate(mm, address)) {
+ /* vma is no longer available, don't continue to swapin */
return false;
+ }
/* check if the pmd is still valid */
if (mm_find_pmd(mm, address) != pmd)
return false;
@@ -969,7 +970,7 @@ static void collapse_huge_page(struct mm
/*
* __collapse_huge_page_swapin always returns with mmap_sem locked.
- * If it fails, release mmap_sem and jump directly out.
+ * If it fails, we release mmap_sem and jump out_nolock.
* Continuing to collapse causes inconsistency.
*/
if (!__collapse_huge_page_swapin(mm, vma, address, pmd)) {
_
Patches currently in -mm which might be from ebru.akagunduz@xxxxxxxxx are
mm-make-optimistic-check-for-swapin-readahead.patch
mm-make-optimistic-check-for-swapin-readahead-fix-3.patch
mm-make-swapin-readahead-to-improve-thp-collapse-rate.patch
mm-thp-make-swapin-readahead-under-down_read-of-mmap_sem-ks.patch
mm-thp-fix-locking-inconsistency-in-collapse_huge_page.patch
mm-thp-fix-comment-inconsistency-for-swapin-readahead-functions.patch
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