[SCSI] Allow error handling timeout to be specified
Introduce eh_timeout which can be used for error handling purposes. This
was previously hardcoded to 10 seconds in the SCSI error handling
code. However, for some fast-fail scenarios it is necessary to be able
to tune this as it can take several iterations (bus device, target, bus,
controller) before we give up.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 66216c1..4b87d99 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -10,9 +10,14 @@
#include <linux/types.h>
#include <linux/scatterlist.h>
+#include <linux/kernel.h>
struct scsi_cmnd;
+enum scsi_timeouts {
+ SCSI_DEFAULT_EH_TIMEOUT = 10 * HZ,
+};
+
/*
* The maximum number of SG segments that we will put inside a
* scatterlist (unless chaining is used). Should ideally fit inside a