diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index afd34a608fe7..b616a6bef44a 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -36,6 +36,7 @@ #include <scsi/scsi_transport.h> #include <scsi/scsi_host.h> #include <scsi/scsi_ioctl.h> +#include <scsi/scsi_dh.h> #include <scsi/sg.h> #include "scsi_priv.h" @@ -463,11 +464,10 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) if (scsi_sense_is_deferred(&sshdr)) return NEEDS_RETRY; - if (sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh && - sdev->scsi_dh_data->scsi_dh->check_sense) { + if (sdev->handler && sdev->handler->check_sense) { int rc; - rc = sdev->scsi_dh_data->scsi_dh->check_sense(sdev, &sshdr); + rc = sdev->handler->check_sense(sdev, &sshdr); if (rc != SCSI_RETURN_NOT_HANDLED) return rc; /* handler does not care. Drop down to default handling */ @@ -2178,8 +2178,17 @@ int scsi_error_handler(void *data) * We never actually get interrupted because kthread_run * disables signal delivery for the created thread. */ - while (!kthread_should_stop()) { + while (true) { + /* + * The sequence in kthread_stop() sets the stop flag first + * then wakes the process. To avoid missed wakeups, the task + * should always be in a non running state before the stop + * flag is checked + */ set_current_state(TASK_INTERRUPTIBLE); + if (kthread_should_stop()) + break; + if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) || shost->host_failed != atomic_read(&shost->host_busy)) { SCSI_LOG_ERROR_RECOVERY(1, |