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perf machine: Fix the lifetime of the VDSO temporary file

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The VDSO temporary file is unlinked when a session is deleted.  That
precludes the possibilities that there is no session or there is more
than one session.

Correctly the vdso belongs to the machine so put the information on
'struct machine' and get rid of the global variables.

Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/53CF9B14.7040408@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2014-07-23 14:23:00 +03:00
committed by Arnaldo Carvalho de Melo
parent 30f4f815a4
commit d027b64001
5 changed files with 36 additions and 12 deletions
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2
tools/perf/util/session.c
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@@ -14,7 +14,6 @@
#include "util.h"
#include "cpumap.h"
#include "perf_regs.h"
#include "vdso.h"
static int perf_session__open(struct perf_session *session)
{
@@ -156,7 +155,6 @@ void perf_session__delete(struct perf_session *session)
if (session->file)
perf_data_file__close(session->file);
free(session);
vdso__exit();
}
static int process_event_synth_tracing_data_stub(struct perf_tool *tool