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linux/tools/perf/util
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Arnaldo Carvalho de Melo e4b356b56c perf evlist: Unmap when all refcounts to fd are gone and events drained 
As noticed by receiving a POLLHUP for all its pollfd entries.

That will remove the refcount taken in perf_evlist__mmap_per_evsel(),
and when all events are consumed via perf_evlist__mmap_read() +
perf_evlist__mmap_consume(), the ring buffer will be unmap'ed.

Thanks to Jiri Olsa for pointing out that we must wait till all events
are consumed, not being ok to unmmap just when receiving all the
POLLHUPs.

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/n/tip-t10w1xk4myp7ca7m9fvip6a0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-25 16:46:55 -03:00
..
include
perf tools: Move pr_* debug macros into debug object
2014-07-17 12:58:39 -03:00
scripting-engines
perf scripting: Add 'flush' callback to scripting API
2014-08-22 13:12:11 -03:00
abspath.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
alias.c
perf tools: Introduce zfree
2013-12-27 15:17:00 -03:00
annotate.c
perf annotate: Don't truncate Intel style addresses
2014-08-15 10:39:26 -03:00
annotate.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
bitmap.c
perf tools: Add bitmap_or function into bitmap object
2012-02-13 23:28:10 -02:00
build-id.c
perf tools: Use tid for finding thread
2014-05-12 11:09:50 +02:00
build-id.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
cache.h
perf tools: Add perf_config_u64 function
2014-08-12 12:03:00 -03:00
callchain.c
perf report: Relax -g option parsing not to limit the option order
2014-08-15 10:50:07 -03:00
callchain.h
perf tools powerpc: Adjust callchain based on DWARF debug info
2014-06-27 11:14:51 +02:00
cgroup.c
perf evlist: Introduce evlist__for_each() & friends
2014-01-13 10:06:25 -03:00
cgroup.h
perf tool: Add cgroup support
2011-02-16 13:30:48 +01:00
cloexec.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
cloexec.h
perf tools: Enable close-on-exec flag on perf file descriptor
2014-07-18 09:09:34 +02:00
color.c
perf tools: Make __hpp__fmt() receive an additional len argument
2014-08-12 12:03:05 -03:00
color.h
perf tools: Make __hpp__fmt() receive an additional len argument
2014-08-12 12:03:05 -03:00
comm.c
perf tools: Identify which comms are from exec
2014-08-13 19:23:08 -03:00
comm.h
perf tools: Identify which comms are from exec
2014-08-13 19:23:08 -03:00
config.c
perf tools: Add perf_config_u64 function
2014-08-12 12:03:00 -03:00
cpumap.c
perf tools: Use cpu/possible instead of cpu/kernel_max
2014-04-22 17:39:16 +02:00
cpumap.h
perf tools: Allow ability to map cpus to nodes easily
2014-04-22 17:39:12 +02:00
ctype.c
perf tools: ctype.c only wants util.h
2012-02-13 23:17:40 -02:00
data.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
data.h
perf tools: Add perf_data_file__write interface
2013-12-02 09:22:46 -03:00
debug.c
perf tools: Add debug prints for ordered events queue
2014-08-12 12:03:01 -03:00
debug.h
perf: Use strerror_r instead of strerror
2014-08-15 10:54:29 -03:00
dso.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
dso.h
perf tools: Add dso__type()
2014-07-23 17:36:36 -03:00
dwarf-aux.c
perf probe: Fix perf probe to find correct variable DIE
2014-06-04 14:49:20 +02:00
dwarf-aux.h
perf probe: Fix to find line information for probe list
2013-10-04 15:16:05 -03:00
environment.c
…
event.c
perf tools: Add machine__kernel_ip()
2014-08-22 13:12:12 -03:00
event.h
perf tools: Add flags and insn_len to struct sample
2014-08-13 19:23:32 -03:00
evlist.c
perf evlist: Unmap when all refcounts to fd are gone and events drained
2014-09-25 16:46:55 -03:00
evlist.h
perf evlist: Refcount mmaps
2014-09-25 16:46:55 -03:00
evsel.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
evsel.h
perf evlist: Add perf_evlist__set_tracking_event()
2014-08-13 19:21:32 -03:00
exec_cmd.c
perf tools: Makefile: Remove various and sundry cruft
2011-02-18 07:43:06 -02:00
exec_cmd.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
generate-cmdlist.sh
tools/perf: Standardize feature support define names to: HAVE_{FEATURE}_SUPPORT
2013-10-09 08:48:28 +02:00
header.c
perf tools: Separate the VDSO map name from the VDSO dso name
2014-07-23 17:36:32 -03:00
header.h
perf tools: Add dsos__hit_all()
2014-07-23 11:25:40 -03:00
help.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
help.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
hist.c
perf top: Fix -z option behavior
2014-08-13 17:28:07 -03:00
hist.h
perf top: Fix -z option behavior
2014-08-13 17:28:07 -03:00
hweight.c
perf tools: Don't use code surrounded by __KERNEL__
2010-05-02 12:00:44 -03:00
intlist.c
perf util: Add findnew method to intlist
2013-10-14 10:28:48 -03:00
intlist.h
perf util: Add findnew method to intlist
2013-10-14 10:28:48 -03:00
kvm-stat.h
perf kvm stat report: Save pid string in opts.target.pid
2014-09-17 17:08:07 -03:00
levenshtein.c
…
levenshtein.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
machine.c
perf machine: Fallback to MAP__FUNCTION if daddr maps are NULL
2014-08-22 13:12:13 -03:00
machine.h
perf tools: Add machine__kernel_ip()
2014-08-22 13:12:12 -03:00
map.c
perf symbols: Don't try to find DSOs in SYSV maps
2014-08-20 08:26:09 -03:00
map.h
perf tools: Add thread parameter to vdso__dso_findnew()
2014-07-23 17:37:26 -03:00
ordered-events.c
perf tools: Allow out of order messages in forced flush
2014-08-12 12:03:02 -03:00
ordered-events.h
perf tools: Allow out of order messages in forced flush
2014-08-12 12:03:02 -03:00
pager.c
perf tools: Add cat as fallback pager
2014-05-21 11:48:33 +02:00
parse-events.c
perf tools: Let default config be defined for a PMU
2014-09-17 17:08:08 -03:00
parse-events.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
parse-events.l
perf tools: Move start conditions to start of the flex file
2013-10-11 12:17:31 -03:00
parse-events.y
perf tools: Let a user specify a PMU event without any config terms
2014-09-17 17:08:08 -03:00
parse-options.c
perf kvm: introduce --list-cmds for use by scripts
2014-03-14 18:08:41 -03:00
parse-options.h
perf tools: Add option macro OPT_CALLBACK_OPTARG
2014-07-16 17:57:36 -03:00
path.c
tools/perf: Turn strlcpy() into a __weak function
2013-10-09 08:48:49 +02:00
perf_regs.c
perf tools: Cache register accesses for unwind processing
2014-06-12 16:53:19 +02:00
perf_regs.h
perf tools: Cache register accesses for unwind processing
2014-06-12 16:53:19 +02:00
PERF-VERSION-GEN
perf tools: Fix version when building out of tree
2013-11-07 10:40:47 -03:00
pmu.c
perf tools: Add perf_pmu__scan_file()
2014-09-17 17:08:09 -03:00
pmu.h
perf tools: Add perf_pmu__scan_file()
2014-09-17 17:08:09 -03:00
pmu.l
perf tools: Add perf pmu object to access pmu format definition
2012-03-16 14:29:35 -03:00
pmu.y
perf tools: Fix build with bison 2.3 and older.
2013-02-14 16:12:34 -03:00
probe-event.c
perf probe: Do not access kallsyms when analyzing user binaries
2014-09-17 18:01:14 -03:00
probe-event.h
perf probe: Do not access kallsyms when analyzing user binaries
2014-09-17 18:01:14 -03:00
probe-finder.c
perf probe: Do not use dwfl_module_addrsym if dwarf_diename finds symbol name
2014-09-17 18:01:43 -03:00
probe-finder.h
perf probe: Support distro-style debuginfo for uprobe
2014-02-18 09:38:44 -03:00
pstack.c
perf tools: Move pr_* debug macros into debug object
2014-07-17 12:58:39 -03:00
pstack.h
perf tools: Finish the removal of 'self' arguments
2013-11-05 15:32:36 -03:00
python-ext-sources
perf tools: Move fs.* to lib/api/fs/
2014-02-18 09:34:49 -03:00
python.c
tools lib api: Adopt fdarray class from perf's evlist
2014-09-25 16:46:55 -03:00
quote.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
quote.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
rblist.c
perf util: Add findnew method to intlist
2013-10-14 10:28:48 -03:00
rblist.h
perf util: Add findnew method to intlist
2013-10-14 10:28:48 -03:00
record.c
perf evlist: Add perf_evlist__set_tracking_event()
2014-08-13 19:21:32 -03:00
run-command.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
run-command.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
session.c
perf machine: Add machine__thread_exec_comm()
2014-08-13 19:23:21 -03:00
session.h
perf session: Add perf_session__peek_event()
2014-08-13 19:21:44 -03:00
setup.py
tools/: Convert to new topic libraries
2013-12-16 16:03:27 -03:00
sigchain.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
sigchain.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
sort.c
perf tools: Add +field argument support for --sort option
2014-09-17 17:08:07 -03:00
sort.h
perf tools: Add +field argument support for --field option
2014-08-24 08:11:19 -03:00
srcline.c
perf tools: Fix build error due to zfree() cast
2014-01-15 15:10:04 -03:00
stat.c
perf stats: Add max and min stats
2013-08-07 17:35:26 -03:00
stat.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
strbuf.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
strbuf.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
strfilter.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
strfilter.h
perf tools: Finish the removal of 'self' arguments
2013-11-05 15:32:36 -03:00
string.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
strlist.c
perf tools: Fix build error due to zfree() cast
2014-01-15 15:10:04 -03:00
strlist.h
perf tools: Stop using 'self' in strlist
2013-01-25 12:49:28 -03:00
svghelper.c
perf timechart: Implement IO mode
2014-07-10 00:22:54 +02:00
svghelper.h
perf timechart: Implement IO mode
2014-07-10 00:22:54 +02:00
symbol-elf.c
perf symbols: Ignore stripped vmlinux and fallback to kallsyms
2014-09-17 17:08:10 -03:00
symbol-minimal.c
perf tools: Add dso__type()
2014-07-23 17:36:36 -03:00
symbol.c
perf symbols: Add path to Ubuntu kernel debuginfo file
2014-09-17 17:08:10 -03:00
symbol.h
perf tools: Disable kernel symbol demangling by default
2014-09-17 17:08:09 -03:00
target.c
perf record: Make per-cpu mmaps the default.
2013-11-27 14:58:36 -03:00
target.h
perf target: Move the checking of which map function to call into function.
2013-12-04 13:46:37 -03:00
thread_map.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
thread_map.h
perf evlist: Add thread_map__nr() helper
2013-03-15 13:06:02 -03:00
thread.c
perf tools: Identify which comms are from exec
2014-08-13 19:23:08 -03:00
thread.h
perf tools: Identify which comms are from exec
2014-08-13 19:23:08 -03:00
tool.h
perf tools: Rename ordered_samples bool to ordered_events
2014-08-12 12:02:54 -03:00
top.c
perf tools: Rename 'perf_record_opts' to 'record_opts
2013-12-19 14:43:45 -03:00
top.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
trace-event-info.c
perf tools: Move pr_* debug macros into debug object
2014-07-17 12:58:39 -03:00
trace-event-parse.c
perf tools: Fix memory leak in event_format__print function
2014-02-18 09:34:47 -03:00
trace-event-read.c
perf tools: Remove needless getopt.h includes
2014-07-17 12:59:00 -03:00
trace-event-scripting.c
perf scripting: Add 'flush' callback to scripting API
2014-08-22 13:12:11 -03:00
trace-event.c
tools lib traceevent: Make plugin unload function receive pevent
2014-01-15 15:10:40 -03:00
trace-event.h
perf scripting: Add 'flush' callback to scripting API
2014-08-22 13:12:11 -03:00
tsc.c
perf tools: Move rdtsc() function
2014-07-23 11:48:11 -03:00
tsc.h
perf tools: Move rdtsc() function
2014-07-23 11:48:11 -03:00
unwind-libdw.c
perf tools: Move pr_* debug macros into debug object
2014-07-17 12:58:39 -03:00
unwind-libdw.h
perf tools: Add libdw DWARF post unwind support
2014-02-24 09:29:36 -03:00
unwind-libunwind.c
perf tools: Move pr_* debug macros into debug object
2014-07-17 12:58:39 -03:00
unwind.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
usage.c
perf target: Introduce perf_target__parse_uid()
2012-05-07 16:46:48 -03:00
util.c
perf util: Replace strerror with strerror_r for thread-safety
2014-08-15 10:58:35 -03:00
util.h
perf tools: define _DEFAULT_SOURCE for glibc_2.20
2014-09-17 17:08:10 -03:00
values.c
perf tools: Use zfree to help detect use after free bugs
2013-12-27 17:08:19 -03:00
values.h
tools: Consolidate types.h
2014-05-01 21:22:39 +02:00
vdso.c
perf tools: Add thread parameter to vdso__dso_findnew()
2014-07-23 17:37:26 -03:00
vdso.h
perf tools: Add thread parameter to vdso__dso_findnew()
2014-07-23 17:37:26 -03:00
wrapper.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
xyarray.c
perf tools: Introduce event selectors
2011-01-03 16:39:04 -02:00
xyarray.h
perf tools: Introduce event selectors
2011-01-03 16:39:04 -02:00