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x86/pti: Document fix wrong index

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In section <2. Runtime Cost>, fix wrong index.

Signed-off-by: zhenwei.pi <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
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zhenwei.pi 2018-01-18 09:04:52 +08:00 • committed by Thomas Gleixner
commit 98f0fceec7
1 changed files with 1 additions and 1 deletions
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Documentation/x86/pti.txt
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@ -78,7 +78,7 @@ this protection comes at a cost:
non-PTI SYSCALL entry code, so requires mapping fewer
things into the userspace page tables. The downside is
that stacks must be switched at entry time.
d. Global pages are disabled for all kernel structures not
c. Global pages are disabled for all kernel structures not
mapped into both kernel and userspace page tables. This
feature of the MMU allows different processes to share TLB
entries mapping the kernel. Losing the feature means more