diff options
author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-03-25 09:51:50 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-03-26 06:33:55 -0400 |
commit | faa4602e47690fb11221e00f9b9697c8dc0d4b19 (patch) | |
tree | af667d1cdff7dc63b6893ee3f27a1f2503229ed1 /arch/x86/kernel/Makefile | |
parent | 7c5ecaf7666617889f337296c610815b519abfa9 (diff) |
x86, perf, bts, mm: Delete the never used BTS-ptrace code
Support for the PMU's BTS features has been upstreamed in
v2.6.32, but we still have the old and disabled ptrace-BTS,
as Linus noticed it not so long ago.
It's buggy: TIF_DEBUGCTLMSR is trampling all over that MSR without
regard for other uses (perf) and doesn't provide the flexibility
needed for perf either.
Its users are ptrace-block-step and ptrace-bts, since ptrace-bts
was never used and ptrace-block-step can be implemented using a
much simpler approach.
So axe all 3000 lines of it. That includes the *locked_memory*()
APIs in mm/mlock.c as well.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Markus Metzger <markus.t.metzger@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <20100325135413.938004390@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/Makefile')
-rw-r--r-- | arch/x86/kernel/Makefile | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 4c58352209e0..e77b22083721 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile | |||
@@ -47,8 +47,6 @@ obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o | |||
47 | obj-y += process.o | 47 | obj-y += process.o |
48 | obj-y += i387.o xsave.o | 48 | obj-y += i387.o xsave.o |
49 | obj-y += ptrace.o | 49 | obj-y += ptrace.o |
50 | obj-$(CONFIG_X86_DS) += ds.o | ||
51 | obj-$(CONFIG_X86_DS_SELFTEST) += ds_selftest.o | ||
52 | obj-$(CONFIG_X86_32) += tls.o | 50 | obj-$(CONFIG_X86_32) += tls.o |
53 | obj-$(CONFIG_IA32_EMULATION) += tls.o | 51 | obj-$(CONFIG_IA32_EMULATION) += tls.o |
54 | obj-y += step.o | 52 | obj-y += step.o |