The patch titled
Subject: thp: fix khugepaged defrag tunable documentation
has been added to the -mm tree. Its filename is
thp-fix-khugepaged-defrag-tunable-documentation.patch
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: thp: fix khugepaged defrag tunable documentation
e27e6151b154 ("mm/thp: use conventional format for boolean attributes")
changed /sys/kernel/mm/transparent_hugepage/khugepaged/defrag to be tuned
by using 1 (enabled) or 0 (disabled) instead of "yes" and "no",
respectively.
Update the documentation.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxx>
---
Documentation/vm/transhuge.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN Documentation/vm/transhuge.txt~thp-fix-khugepaged-defrag-tunable-documentation Documentation/vm/transhuge.txt
--- a/Documentation/vm/transhuge.txt~thp-fix-khugepaged-defrag-tunable-documentation
+++ a/Documentation/vm/transhuge.txt
@@ -123,10 +123,11 @@ be automatically shutdown if it's set to
khugepaged runs usually at low frequency so while one may not want to
invoke defrag algorithms synchronously during the page faults, it
should be worth invoking defrag at least in khugepaged. However it's
-also possible to disable defrag in khugepaged:
+also possible to disable defrag in khugepaged by writing 0 or enable
+defrag in khugepaged by writing 1:
-echo yes >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
-echo no >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
+echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
+echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
You can also control how many pages khugepaged should scan at each
pass:
_
Subject: Subject: thp: fix khugepaged defrag tunable documentation
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
origin.patch
linux-next.patch
oom-avoid-killing-kthreads-if-they-assume-the-oom-killed-threads-mm.patch
oom-remove-oom_disable_count.patch
oom-fix-race-while-temporarily-setting-currents-oom_score_adj.patch
mm-avoid-null-pointer-access-in-vm_struct-via-proc-vmallocinfo.patch
mm-compaction-make-compact_zone_order-static.patch
thp-fix-khugepaged-defrag-tunable-documentation.patch
cpusets-avoid-looping-when-storing-to-mems_allowed-if-one-node-remains-set.patch
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