[PATCH 7/8] mm/thp: fix doc for transparent huge zero page

From: Wanpeng Li
Date: Fri Jun 14 2013 - 03:31:23 EST

Transparent huge zero page is used during the page fault instead of
in khugepaged.

# ls /sys/kernel/mm/transparent_hugepage/
defrag enabled khugepaged use_zero_page
# ls /sys/kernel/mm/transparent_hugepage/khugepaged/
alloc_sleep_millisecs defrag full_scans max_ptes_none pages_collapsed pages_to_scan scan_sleep_millisecs

This patch corrects the documentation just like the codes done.

Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
Documentation/vm/transhuge.txt | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt
index 8785fb8..4a63953 100644
--- a/Documentation/vm/transhuge.txt
+++ b/Documentation/vm/transhuge.txt
@@ -120,8 +120,8 @@ By default kernel tries to use huge zero page on read page fault.
It's possible to disable huge zero page by writing 0 or enable it
back by writing 1:

-echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/use_zero_page
-echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/use_zero_page
+echo 0 >/sys/kernel/mm/transparent_hugepage/use_zero_page
+echo 1 >/sys/kernel/mm/transparent_hugepage/use_zero_page

khugepaged will be automatically started when
transparent_hugepage/enabled is set to "always" or "madvise, and it'll

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