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authorYong Wang <yong.y.wang@linux.intel.com>2009-06-03 16:42:25 +0800
committerIngo Molnar <mingo@elte.hu>2009-06-04 13:20:12 +0200
commit3aff27ca84fa94311ae99189e54fed8d83b69fc1 (patch)
tree071e132ebb220c67f5b4b68e67a88f55fbb4272d
parent1b58c2515be48d5df79d20210ac5a86e30094de2 (diff)
perf_counter: Documentation update
The 'nmi' bit is no longer there. Signed-off-by: Yong Wang <yong.y.wang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Arjan van de Ven <arjan@linux.intel.com> LKML-Reference: <20090603084225.GA6553@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--Documentation/perf_counter/design.txt7
1 files changed, 0 insertions, 7 deletions
diff --git a/Documentation/perf_counter/design.txt b/Documentation/perf_counter/design.txt
index 9930c4bddc6f..d3250763dc92 100644
--- a/Documentation/perf_counter/design.txt
+++ b/Documentation/perf_counter/design.txt
@@ -48,7 +48,6 @@ struct perf_counter_hw_event {
__u32 read_format;
__u64 disabled : 1, /* off by default */
- nmi : 1, /* NMI sampling */
inherit : 1, /* children inherit it */
pinned : 1, /* must always be on PMU */
exclusive : 1, /* only group on PMU */
@@ -195,12 +194,6 @@ The 'disabled' bit specifies whether the counter starts out disabled
or enabled. If it is initially disabled, it can be enabled by ioctl
or prctl (see below).
-The 'nmi' bit specifies, for hardware events, whether the counter
-should be set up to request non-maskable interrupts (NMIs) or normal
-interrupts. This bit is ignored if the user doesn't have
-CAP_SYS_ADMIN privilege (i.e. is not root) or if the CPU doesn't
-generate NMIs from hardware counters.
-
The 'inherit' bit, if set, specifies that this counter should count
events on descendant tasks as well as the task specified. This only
applies to new descendents, not to any existing descendents at the