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| author | Dmitry Safonov <dima@arista.com> | 2019-11-12 01:27:08 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-01-14 12:20:56 +0100 |
| commit | 6f74acfde20af1eb2178d0bd846bfd8f50b3be32 (patch) | |
| tree | 39f484ecd89b581b003acd14be07293da887bbba /init | |
| parent | 0efc8bb0bb5fdfd529a23073ee15478b5d5e3839 (diff) | |
| download | lwn-6f74acfde20af1eb2178d0bd846bfd8f50b3be32.tar.gz lwn-6f74acfde20af1eb2178d0bd846bfd8f50b3be32.zip | |
x86/vdso: Restrict splitting VVAR VMA
Forbid splitting VVAR VMA resulting in a stricter ABI and reducing the
amount of corner-cases to consider while working further on VDSO time
namespace support.
As the offset from timens to VVAR page is computed compile-time, the pages
in VVAR should stay together and not being partically mremap()'ed.
Co-developed-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20191112012724.250792-20-dima@arista.com
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions