Hi all- The user_mode vs user_mode_vm distinction scares me. Let's fix it. This series adds user_mode_ignore_vm86, makes user_mode reliable, and removes user_mode_vm. It also tidies up a couple warts I found along the way.
This survives basic testing, but I haven't tried that hard to test it. Thoughts? Ingo, this may conflict a bit with the do_debug and do_bounds fixes. Andy Lutomirski (9): x86, fault: Use TASK_SIZE_MAX in is_prefetch x86, perf: Fix incorrect TIF_IA32 check in code_segment_base x86: Add user_mode_ignore_vm86 x86, perf: Explicitly optimize vm86 handling in code_segment_base x86, traps: Use user_mode_ignore_vm86 where appropriate x86: Make user_mode work correctly if regs came from vm86 mode x86, treewide: s/user_mode_vm/user_mode/g x86: Remove user_mode_vm x86, traps: Replace some open-coded vm86 checks with v8086_mode arch/x86/include/asm/ptrace.h | 33 +++++++++++++++++++++------------ arch/x86/kernel/alternative.c | 2 +- arch/x86/kernel/cpu/perf_event.c | 20 ++++++++++---------- arch/x86/kernel/crash.c | 2 +- arch/x86/kernel/dumpstack.c | 4 ++-- arch/x86/kernel/dumpstack_32.c | 4 ++-- arch/x86/kernel/i387.c | 2 +- arch/x86/kernel/irq_32.c | 2 +- arch/x86/kernel/irq_64.c | 2 +- arch/x86/kernel/kgdb.c | 4 ++-- arch/x86/kernel/kprobes/core.c | 4 ++-- arch/x86/kernel/process_32.c | 2 +- arch/x86/kernel/ptrace.c | 2 +- arch/x86/kernel/time.c | 2 +- arch/x86/kernel/traps.c | 29 +++++++++++++---------------- arch/x86/kernel/uprobes.c | 2 +- arch/x86/mm/fault.c | 8 ++++---- arch/x86/oprofile/backtrace.c | 2 +- drivers/misc/sgi-xp/xpc_main.c | 2 +- 19 files changed, 67 insertions(+), 61 deletions(-) -- 2.3.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
