Author: imp
Date: Thu Apr 14 22:13:46 2016
New Revision: 298011
URL: https://svnweb.freebsd.org/changeset/base/298011
Log:
Add a comment about why the timeout for flush was lowered to 5s.
Modified:
head/sys/cam/ata/ata_da.c
Modified: head/sys/cam/ata/ata_da.c
==============================================================================
--- head/sys/cam/ata/ata_da.c Thu Apr 14 22:13:44 2016 (r298010)
+++ head/sys/cam/ata/ata_da.c Thu Apr 14 22:13:46 2016 (r298011)
@@ -912,6 +912,11 @@ adadump(void *arg, void *virtual, vm_off
if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) {
xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
+ /*
+ * Tell the drive to flush its intenral cache. if we
+ * can't flush in 5s we have big problems. No need to
+ * wait the default 60s to detect problems.
+ */
ccb.ccb_h.ccb_state = ADA_CCB_DUMP;
cam_fill_ataio(&ccb.ataio,
0,
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