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 /kernel/trace/trace_entries.h | |
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 'kernel/trace/trace_entries.h')
-rw-r--r-- | kernel/trace/trace_entries.h | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h index c16a08f399df..dc008c1240da 100644 --- a/kernel/trace/trace_entries.h +++ b/kernel/trace/trace_entries.h | |||
@@ -318,18 +318,6 @@ FTRACE_ENTRY(branch, trace_branch, | |||
318 | __entry->func, __entry->file, __entry->correct) | 318 | __entry->func, __entry->file, __entry->correct) |
319 | ); | 319 | ); |
320 | 320 | ||
321 | FTRACE_ENTRY(hw_branch, hw_branch_entry, | ||
322 | |||
323 | TRACE_HW_BRANCHES, | ||
324 | |||
325 | F_STRUCT( | ||
326 | __field( u64, from ) | ||
327 | __field( u64, to ) | ||
328 | ), | ||
329 | |||
330 | F_printk("from: %llx to: %llx", __entry->from, __entry->to) | ||
331 | ); | ||
332 | |||
333 | FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry, | 321 | FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry, |
334 | 322 | ||
335 | TRACE_KMEM_ALLOC, | 323 | TRACE_KMEM_ALLOC, |