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authorJens Axboe <axboe@kernel.dk>2011-10-19 14:30:42 +0200
committerJens Axboe <axboe@kernel.dk>2011-10-19 14:30:42 +0200
commit5c04b426f2e8b46cfc7969a35b2631063a3c646c (patch)
tree2d27d9f5d2fe5d5e8fbc01a467ec58bcb50235c1 /Documentation/vm/transhuge.txt
parent499337bb6511e665a236a6a947f819d98ea340c6 (diff)
parent899e3ee404961a90b828ad527573aaaac39f0ab1 (diff)
Merge branch 'v3.1-rc10' into for-3.2/core
Conflicts: block/blk-core.c include/linux/blkdev.h Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/vm/transhuge.txt')
-rw-r--r--Documentation/vm/transhuge.txt7
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt
index 0924aaca330..29bdf62aac0 100644
--- a/Documentation/vm/transhuge.txt
+++ b/Documentation/vm/transhuge.txt
@@ -123,10 +123,11 @@ be automatically shutdown if it's set to "never".
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: