Author: mav
Date: Thu Oct 1 16:30:20 2015
New Revision: 288450
URL: https://svnweb.freebsd.org/changeset/base/288450
Log:
Make zero WUT use WRITE SAME with recently allowed NDOB flag.
Modified:
head/sys/cam/ctl/ctl_tpc.c
Modified: head/sys/cam/ctl/ctl_tpc.c
==============================================================================
--- head/sys/cam/ctl/ctl_tpc.c Thu Oct 1 12:57:37 2015 (r288449)
+++ head/sys/cam/ctl/ctl_tpc.c Thu Oct 1 16:30:20 2015 (r288450)
@@ -1295,7 +1295,6 @@ complete:
ctl_free_io(tio->io);
free(tio, M_CTL);
}
- free(list->buf, M_CTL);
if (list->abort) {
ctl_set_task_aborted(list->ctsio);
return (CTL_RETVAL_ERROR);
@@ -1311,7 +1310,6 @@ complete:
}
dstblock = list->lun->be_lun->blocksize;
- list->buf = malloc(dstblock, M_CTL, M_WAITOK | M_ZERO);
TAILQ_INIT(&run);
prun = &run;
list->tbdio = 1;
@@ -1328,9 +1326,9 @@ complete:
TAILQ_INSERT_TAIL(&list->allio, tiow, links);
tiow->io = tpcl_alloc_io();
ctl_scsi_write_same(tiow->io,
- /*data_ptr*/ list->buf,
- /*data_len*/ dstblock,
- /*byte2*/ 0,
+ /*data_ptr*/ NULL,
+ /*data_len*/ 0,
+ /*byte2*/ SWS_NDOB,
/*lba*/ scsi_8btou64(list->range[r].lba),
/*num_blocks*/ len,
/*tag_type*/ CTL_TAG_SIMPLE,
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