lkml.org 
[lkml]   [2013]   [Jul]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/core] perf tools: Rename cpu_map__all() to cpu_map__empty()
Commit-ID:  ec1e7e437ac47ecf7b4e07241036b1e1c3366012
Gitweb: http://git.kernel.org/tip/ec1e7e437ac47ecf7b4e07241036b1e1c3366012
Author: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
AuthorDate: Wed, 22 May 2013 17:42:38 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 12 Jul 2013 13:45:44 -0300

perf tools: Rename cpu_map__all() to cpu_map__empty()

The CPU map is in an "empty" (or not-applicable) state when monitoring
specific threads.

cpu_map__all() returns true if the CPU map is in this empty state (i.e
for the 'empty_cpu_map' or if we created the map via
cpu_map__dummy_new().

The name, cpu_map__all(), is misleading, because even when monitoring
all CPUs, (eg: perf record -a), cpu_map__all() returns false.

Rename cpu_map__all() to cpu_map__empty().

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20130523012620.GA27733@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/cpumap.h | 2 +-
tools/perf/util/evlist.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 9bed02e..b123bb9 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -41,7 +41,7 @@ static inline int cpu_map__nr(const struct cpu_map *map)
return map ? map->nr : 1;
}

-static inline bool cpu_map__all(const struct cpu_map *map)
+static inline bool cpu_map__empty(const struct cpu_map *map)
{
return map ? map->map[0] == -1 : true;
}
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8065ce8..4a901be 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -421,7 +421,7 @@ void perf_evlist__munmap(struct perf_evlist *evlist)
static int perf_evlist__alloc_mmap(struct perf_evlist *evlist)
{
evlist->nr_mmaps = cpu_map__nr(evlist->cpus);
- if (cpu_map__all(evlist->cpus))
+ if (cpu_map__empty(evlist->cpus))
evlist->nr_mmaps = thread_map__nr(evlist->threads);
evlist->mmap = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap));
return evlist->mmap != NULL ? 0 : -ENOMEM;
@@ -573,7 +573,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
return -ENOMEM;
}

- if (cpu_map__all(cpus))
+ if (cpu_map__empty(cpus))
return perf_evlist__mmap_per_thread(evlist, prot, mask);

return perf_evlist__mmap_per_cpu(evlist, prot, mask);

\
 
 \ /
  Last update: 2013-07-19 10:21    [W:0.138 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site