perf record: Move mmap_pages to perf_record_opts

Tools being developed will need this to allow the user to override this
value.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zydc1yhxfm0z35fuy95bsn1l@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 6 insertions, 4 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 749862d57a83..ffb627d40210 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -35,9 +35,10 @@ enum write_mode_t {
         WRITE_APPEND
 };
 
-static struct perf_record_opts record_opts = {
+struct perf_record_opts record_opts = {
         .target_pid          = -1,
         .target_tid          = -1,
+        .mmap_pages          = UINT_MAX,
         .user_freq           = UINT_MAX,
         .user_interval       = ULLONG_MAX,
         .freq                = 1000,
@@ -45,7 +46,6 @@ static struct perf_record_opts record_opts = {
 };
 
 static unsigned int             page_size;
-static unsigned int             mmap_pages                      = UINT_MAX;
 static int                      output;
 static const char               *output_name                    = NULL;
 static bool                     group                           =  false;
@@ -272,7 +272,7 @@ try_again:
                 exit(-1);
         }
 
-        if (perf_evlist__mmap(evlist, mmap_pages, false) < 0)
+        if (perf_evlist__mmap(evlist, record_opts.mmap_pages, false) < 0)
                 die("failed to mmap with %d (%s)\n", errno, strerror(errno));
 
         if (file_new)
@@ -647,7 +647,8 @@ const struct option record_options[] = {
         OPT_BOOLEAN('i', "no-inherit", &record_opts.no_inherit,
                     "child tasks do not inherit counters"),
         OPT_UINTEGER('F', "freq", &record_opts.user_freq, "profile at this frequency"),
-        OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"),
+        OPT_UINTEGER('m', "mmap-pages", &record_opts.mmap_pages,
+                     "number of mmap data pages"),
         OPT_BOOLEAN(0, "group", &group,
                     "put the counters into a counter group"),
         OPT_BOOLEAN('g', "call-graph", &record_opts.call_graph,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 32ee6ca8eabd..13c42f34e8b3 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -200,6 +200,7 @@ struct perf_record_opts {
         bool         sample_id_all_avail;
         bool         system_wide;
         unsigned int freq;
+        unsigned int mmap_pages;
         unsigned int user_freq;
         u64          default_interval;
         u64          user_interval;