Adding global count of opened dso objects so we could properly limit the number of opened dso data file descriptors.
Acked-by: Namhyung Kim <namhy...@kernel.org> Cc: Arnaldo Carvalho de Melo <a...@kernel.org> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Ingo Molnar <mi...@kernel.org> Cc: Jean Pihet <jean.pi...@linaro.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/1401892622-30848-6-git-send-email-jo...@kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/util/dso.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 5d7c7bc..76e5c13 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -1,3 +1,4 @@ +#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) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
