diff options
| -rw-r--r-- | tools/testing/selftests/ublk/kublk.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/tools/testing/selftests/ublk/kublk.c b/tools/testing/selftests/ublk/kublk.c index b65bdaf7e281..2072d880fdc4 100644 --- a/tools/testing/selftests/ublk/kublk.c +++ b/tools/testing/selftests/ublk/kublk.c @@ -691,13 +691,14 @@ static int ublk_start_daemon(const struct dev_ctx *ctx, struct ublk_dev *dev) return ret; } -static int wait_ublk_dev(char *dev_name, int evt_mask, unsigned timeout) +static int wait_ublk_dev(const char *path, int evt_mask, unsigned timeout) { #define EV_SIZE (sizeof(struct inotify_event)) #define EV_BUF_LEN (128 * (EV_SIZE + 16)) struct pollfd pfd; int fd, wd; int ret = -EINVAL; + const char *dev_name = basename(path); fd = inotify_init(); if (fd < 0) { @@ -761,18 +762,23 @@ static int ublk_stop_io_daemon(const struct ublk_dev *dev) char ublkc[64]; int ret = 0; + if (daemon_pid < 0) + return 0; + /* daemon may be dead already */ if (kill(daemon_pid, 0) < 0) goto wait; - /* - * Wait until ublk char device is closed, when our daemon is shutdown - */ - snprintf(ublkc, sizeof(ublkc), "%s%d", "ublkc", dev_id); - ret = wait_ublk_dev(ublkc, IN_CLOSE_WRITE, 10); - /* double check and inotify may not be 100% reliable */ + snprintf(ublkc, sizeof(ublkc), "/dev/%s%d", "ublkc", dev_id); + + /* ublk char device may be gone already */ + if (access(ublkc, F_OK) != 0) + goto wait; + + /* Wait until ublk char device is closed, when the daemon is shutdown */ + ret = wait_ublk_dev(ublkc, IN_CLOSE, 10); + /* double check and since it may be closed before starting inotify */ if (ret == -ETIMEDOUT) - /* the daemon doesn't exist now if kill(0) fails */ ret = kill(daemon_pid, 0) < 0; wait: waitpid(daemon_pid, NULL, 0); @@ -910,8 +916,6 @@ static int __cmd_dev_del(struct dev_ctx *ctx) __func__, dev->dev_info.ublksrv_pid, number, ret); ublk_ctrl_del_dev(dev); fail: - if (ret >= 0) - ret = ublk_ctrl_get_info(dev); ublk_ctrl_deinit(dev); return (ret >= 0) ? 0 : ret; |