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Commit bda6ee4a authored by Jiri Olsa's avatar Jiri Olsa
Browse files

perf tools: Add global count of opened dso objects 



Adding global count of opened dso objects so we could
properly limit the number of opened dso data file
descriptors.

Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
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: 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/1401892622-30848-6-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
parent eba5102d

tools/perf/util/dso.c

+7 −1
Original line number Diff line number Diff line 
#include <asm/bug.h>

#include "symbol.h"

#include "dso.h"

#include "machine.h"
@@ -137,18 +138,23 @@ int dso__read_binary_type_filename(const struct dso *dso, 
}



/*

 * Global list of open DSOs.

 * Global list of open DSOs and the counter.

 */

static LIST_HEAD(dso__data_open);

static long dso__data_open_cnt;



static void dso__list_add(struct dso *dso)

{

	list_add_tail(&dso->data.open_entry, &dso__data_open);

	dso__data_open_cnt++;

}



static void dso__list_del(struct dso *dso)

{

	list_del(&dso->data.open_entry);

	WARN_ONCE(dso__data_open_cnt <= 0,

		  "DSO data fd counter out of bounds.");

	dso__data_open_cnt--;

}



static int __open_dso(struct dso *dso, struct machine *machine)