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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-09-08 13:26:35 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-09-25 16:46:55 -0300 |
commit | 82396986032915c1572bfb74b224fcc2e4e8ba7c (patch) | |
tree | 14a4781ac1f5892ae12e18c0dd1fe159b1fb4d31 /tools/lib | |
parent | 1b85337d0685d1dc5a6f9061434ba4316d69f3b8 (diff) | |
download | linux-82396986032915c1572bfb74b224fcc2e4e8ba7c.tar.bz2 |
perf evlist: Refcount mmaps
We need to know how many fds are using a perf mmap via
PERF_EVENT_IOC_SET_OUTPUT, so that we can know when to ditch an mmap,
refcount it.
v2: Automatically unmap it when the refcount hits one, which will happen
when all fds are filtered by perf_evlist__filter_pollfd(), in later
patches.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140908153824.GG2773@kernel.org
Link: http://lkml.kernel.org/n/tip-cpv7v2lw0g74ucmxa39xdpms@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
0 files changed, 0 insertions, 0 deletions