Stephane Eranian d3a4f48d48 [PATCH] x86-64 TIF flags for debug regs and io bitmap in ctxsw ... Hello, Following my discussion with Andi. Here is a patch that introduces two new TIF flags to simplify the context switch code in __switch_to(). The idea is to minimize the number of cache lines accessed in the common case, i.e., when neither the debug registers nor the I/O bitmap are used. This patch covers the x86-64 modifications. A patch for i386 follows. Changelog: - add TIF_DEBUG to track when debug registers are active - add TIF_IO_BITMAP to track when I/O bitmap is used - modify __switch_to() to use the new TIF flags <signed-off-by>: eranian@hpl.hp.com Signed-off-by: Andi Kleen <ak@suse.de>		2006-09-26 10:52:28 +02:00
..
audit.c
fpu32.c
ia32_aout.c
ia32_binfmt.c
ia32_signal.c
ia32entry.S
ipc32.c
Makefile
mmap32.c
ptrace32.c
sys_ia32.c
syscall32_syscall.S
syscall32.c
tls32.c
vsyscall-sigreturn.S
vsyscall-syscall.S
vsyscall-sysenter.S
vsyscall.lds