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| author | Andy Lutomirski <luto@amacapital.net> | 2014-10-29 14:33:45 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-11-03 21:44:57 +0100 |
| commit | 87983c66bc02c9cd8e4a42e7924435145d52bb13 (patch) | |
| tree | 55948cf6d9d58e55cad84fdfb276819fba65bf6b /arch/x86/Kconfig | |
| parent | e76b027e6408f5570dc940b731ec9ae870c6188a (diff) | |
| download | lwn-87983c66bc02c9cd8e4a42e7924435145d52bb13.tar.gz lwn-87983c66bc02c9cd8e4a42e7924435145d52bb13.zip | |
x86_64, vsyscall: Turn vsyscalls all the way off when vsyscall==none
I see no point in having an unusable read-only page sitting at
0xffffffffff600000 when vsyscall=none. Instead, skip mapping it and
remove it from /proc/PID/maps.
I kept the ratelimited warning when programs try to use a vsyscall
in this mode, since it may help admins avoid confusion.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/0dddbadc1d4e3bfbaf887938ff42afc97a7cc1f2.1414618407.git.luto@amacapital.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/Kconfig')
0 files changed, 0 insertions, 0 deletions