Messages in this thread | | | From | Andy Lutomirski <> | Subject | [PATCH v2 0/4] vDSO fixes, on top of tip/x86/vdso | Date | Thu, 27 Feb 2014 16:18:11 -0800 |
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I'd still like someone else to confirm that the 32-bit vDSO is working on all common configurations before I'm happy with it, but this should be a considerable improvement.
Someone who maintains the clock code should review the changes in:
commit 0fc8a237cbe98a06962f5ea37d24fc2369e23c74 Author: Stefani Seibold <stefani@seibold.net> Date: Wed Feb 19 10:09:10 2014 +0100
x86, vdso: Add 32-bit VDSO time support for the 64-bit kernel
very carefully.
There's still something extremely questionable about VDSO_PAGES in the 32-bit vDSO code. It appears to be terminally screwed up, and AFAICS it only works at all because none of the 32-bit vDSO images ever exceed 4096 bytes.
Note: Patch 4 fixes a bug that's present even in -linus, so it might make sense to send it to Linus more quickly than the rest of this series.
Changes from v1: - Adjust CFLAGS instead of using asmlinkage. - Add more fixes.
Andy Lutomirski (4): x86: Use the default ABI for the 32-bit vDSO x86: Inline the CLOCK_MONOTONIC vdso code x86: Patch alternatives in the 32-bit vDSO x86: Zero-pad the VVAR page
arch/x86/include/asm/vdso.h | 2 ++ arch/x86/kernel/vmlinux.lds.S | 5 +++++ arch/x86/vdso/Makefile | 2 +- arch/x86/vdso/vclock_gettime.c | 2 +- arch/x86/vdso/vdso32-setup.c | 25 +++++++++++++------------ arch/x86/vdso/vma.c | 9 ++++++--- 6 files changed, 28 insertions(+), 17 deletions(-)
-- 1.8.5.3
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