perf: Factor __output_copy to be usable with specific copy function
authorFrederic Weisbecker <fweisbec@gmail.com>
Tue, 7 Aug 2012 13:20:38 +0000 (15:20 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 10 Aug 2012 14:44:06 +0000 (11:44 -0300)
commit91d7753a45f8525dc75b6be01e427dc1c378dc16
tree906a2c335d4403a39bd0f09ed3e338865d3df49b
parent4018994f3d8785275ef0e7391b75c3462c029e56
perf: Factor __output_copy to be usable with specific copy function

Adding a generic way to use __output_copy function with specific copy
function via DEFINE_PERF_OUTPUT_COPY macro.

Using this to add new __output_copy_user function, that provides output
copy from user pointers. For x86 the copy_from_user_nmi function is used
and __copy_from_user_inatomic for the rest of the architectures.

This new function will be used in user stack dump on sample, coming in
next patches.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Arun Sharma <asharma@fb.com>
Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/1344345647-11536-4-git-send-email-jolsa@redhat.com
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
arch/x86/include/asm/perf_event.h
include/linux/perf_event.h
kernel/events/internal.h
kernel/events/ring_buffer.c