perf: Reduce perf_disable() usage

Since the current perf_disable() usage is only an optimization,
remove it for now. This eases the removal of the __weak
hw_perf_enable() interface.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus <paulus@samba.org>
Cc: stephane eranian <eranian@googlemail.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Michael Cree <mcree@orcon.net.nz>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 10 insertions, 10 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ab72f56eb372..243286a8ded7 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -564,26 +564,26 @@ struct pmu {
         struct list_head                entry;
 
         /*
-         * Should return -ENOENT when the @event doesn't match this pmu
+         * Should return -ENOENT when the @event doesn't match this PMU.
          */
         int (*event_init)               (struct perf_event *event);
 
-        int (*enable)                   (struct perf_event *event);
+        int  (*enable)                  (struct perf_event *event);
         void (*disable)                 (struct perf_event *event);
-        int (*start)                    (struct perf_event *event);
+        int  (*start)                   (struct perf_event *event);
         void (*stop)                    (struct perf_event *event);
         void (*read)                    (struct perf_event *event);
         void (*unthrottle)              (struct perf_event *event);
 
         /*
-         * Group events scheduling is treated as a transaction, add group
-         * events as a whole and perform one schedulability test. If the test
-         * fails, roll back the whole group
+         * Group events scheduling is treated as a transaction, add
+         * group events as a whole and perform one schedulability test.
+         * If the test fails, roll back the whole group
          */
 
         /*
-         * Start the transaction, after this ->enable() doesn't need
-         * to do schedulability tests.
+         * Start the transaction, after this ->enable() doesn't need to
+         * do schedulability tests.
          */
         void (*start_txn)       (struct pmu *pmu);
         /*
@@ -594,8 +594,8 @@ struct pmu {
          */
         int  (*commit_txn)      (struct pmu *pmu);
         /*
-         * Will cancel the transaction, assumes ->disable() is called for
-         * each successfull ->enable() during the transaction.
+         * Will cancel the transaction, assumes ->disable() is called
+         * for each successfull ->enable() during the transaction.
          */
         void (*cancel_txn)      (struct pmu *pmu);
 };