| commit | 459ec28ab404d7afcd512ce9b855959ad301605a | |
| author | Ingo Molnar <mingo@elte.hu> | |
| Sun, 13 Sep 2009 15:33:44 +0000 (13 17:33 +0200) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Sun, 13 Sep 2009 15:33:44 +0000 (13 17:33 +0200) | ||
| tree | 5c17a0f919242bafffd29cea65a62139a34c2aeb | treesnapshot (tar.gz zip) |
| parent | 1fc35b29b4098aa3bf9fc9acb4c1615d0b5dd95d | commitdiff |
perf_counter: Allow mmap if paranoid checks are turned off
Before:
$ perf sched record -f sleep 1
Error: failed to mmap with 1 (Operation not permitted)
After:
$ perf sched record -f sleep 1
[ perf record: Captured and wrote 0.095 MB perf.data (~4161 samples) ]
Note, this is only allowed if perfcounter_paranoid is set to
the most permissive (non-default) value of -1.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Before:
$ perf sched record -f sleep 1
Error: failed to mmap with 1 (Operation not permitted)
After:
$ perf sched record -f sleep 1
[ perf record: Captured and wrote 0.095 MB perf.data (~4161 samples) ]
Note, this is only allowed if perfcounter_paranoid is set to
the most permissive (non-default) value of -1.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| kernel/perf_counter.c | diffblobblamehistory |