[Resend, this time to lkml, too. Sigh, I'm bad at this email thing.]
As promised, here's the 32-bit code. Lightly tested. Brian, thanks for
cleaning up the vm86 mess.
I can imagine some objections to patch 1. I wonder how many users
actually care about 32-bit audit performance. It ought to be relatively
straightforward to come up with a clean opportunistic sysexit
implementation for 32-bit kernels, which would fix the performance
regression (mostly, at least) and would speed up lots of other
workloads.
Are these okay as is, or is opportunistic sysexit a prerequisite?
Applies to tip/x86/asm.
P.S. Denys, I think we should do opportunistic sysretl on 64-bit
kernels. That would be much nicer on top of your sysexit cleanup
series.
Andy Lutomirski (3):
x86/entry/32: Remove 32-bit syscall audit optimizations
x86/entry/32: Migrate to C exit path
x86/entry: Remove do_notify_resume, syscall_trace_leave, and their TIF
masks
arch/x86/entry/common.c | 57 --------------------
arch/x86/entry/entry_32.S | 108 +++++--------------------------------
arch/x86/include/asm/ptrace.h | 1 -
arch/x86/include/asm/signal.h | 1 -
arch/x86/include/asm/thread_info.h | 16 ------
5 files changed, 12 insertions(+), 171 deletions(-)
--
2.4.3
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