From: Wanpeng Li Date: Mon, 8 Jul 2013 23:00:16 +0000 (-0700) Subject: mm/thp: fix doc for transparent huge zero page X-Git-Tag: Ubuntu-5.4-5.4.0-11.14~16293^2~79 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=f49cbdde495f62e1c2d906b16e833cec27de5e59;p=mirror_ubuntu-focal-kernel.git mm/thp: fix doc for transparent huge zero page 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 Acked-by: Kirill A. Shutemov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt index 8785fb87d9c7..4a63953a41f1 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