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x86/doc: Fix the 'tlb_single_page_flush_ceiling' sysconfig path

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Fix the documented sysconfig location of 'tlb_single_page_flush_ceiling'
which is under /sys/kernel/debug/... not /sys/debug/kernel/...

Signed-off-by: Jeremiah Mahler <[email protected]>
Acked-by: Dave Hansen <[email protected]>
Cc: Randy Dunlap <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Jeremiah Mahler 2014-08-08 00:49:55 -07:00 • committed by Ingo Molnar
commit 129ea00594
1 changed files with 1 additions and 1 deletions
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Documentation/x86/tlb.txt
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@ -35,7 +35,7 @@ invlpg instruction (or instructions _near_ it) show up high in
profiles. If you believe that individual invalidations being
called too often, you can lower the tunable:
/sys/debug/kernel/x86/tlb_single_page_flush_ceiling
/sys/kernel/debug/x86/tlb_single_page_flush_ceiling
This will cause us to do the global flush for more cases.
Lowering it to 0 will disable the use of the individual flushes.