Fix occasional hangs on mutexes

[fio.git] / iolog.c

diff --git a/iolog.c b/iolog.c
index d9a17a5bcc44537778aa646c0b731a3443fe77ee..e2f9776e3b5c2306e9001d3755666df5cb77c697 100644 (file)
--- a/iolog.c
+++ b/iolog.c
@@ -576,6 +576,7 @@ void setup_log(struct io_log **log, struct log_params *p,
               const char *filename)
 {
        struct io_log *l;
+       pthread_mutexattr_t mattr;
 
        l = scalloc(1, sizeof(*l));
        INIT_FLIST_HEAD(&l->io_logs);
@@ -604,7 +605,11 @@ void setup_log(struct io_log **log, struct log_params *p,
        if (l->log_gz && !p->td)
                l->log_gz = 0;
        else if (l->log_gz || l->log_gz_store) {
-               pthread_mutex_init(&l->chunk_lock, NULL);
+               pthread_mutexattr_init(&mattr);
+#ifdef FIO_HAVE_PSHARED_MUTEX
+               pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
+#endif
+               pthread_mutex_init(&l->chunk_lock, &mattr);
                p->td->flags |= TD_F_COMPRESS_LOG;
        }