diff options
Diffstat (limited to 'util/log.c')
| -rw-r--r-- | util/log.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/util/log.c b/util/log.c index 1a3121610a..6b7b358573 100644 --- a/util/log.c +++ b/util/log.c @@ -36,15 +36,17 @@ static GArray *debug_regions; /* Lock/unlock output. */ -FILE *qemu_log_lock(void) +FILE *qemu_log_trylock(void) { QemuLogFile *logfile; + rcu_read_lock(); logfile = qatomic_rcu_read(&qemu_logfile); if (logfile) { qemu_flockfile(logfile->fd); return logfile->fd; } else { + rcu_read_unlock(); return NULL; } } @@ -53,8 +55,8 @@ void qemu_log_unlock(FILE *fd) { if (fd) { qemu_funlockfile(fd); + rcu_read_unlock(); } - rcu_read_unlock(); } /* Return the number of characters emitted. */ |