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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-03-25 09:51:50 -0400
committerIngo Molnar <mingo@elte.hu>2010-03-26 06:33:55 -0400
commitfaa4602e47690fb11221e00f9b9697c8dc0d4b19 (patch)
treeaf667d1cdff7dc63b6893ee3f27a1f2503229ed1 /kernel/trace/trace_entries.h
parent7c5ecaf7666617889f337296c610815b519abfa9 (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.h12
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
321FTRACE_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
333FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry, 321FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry,
334 322
335 TRACE_KMEM_ALLOC, 323 TRACE_KMEM_ALLOC,