svn commit: r261538 - head/sys/cam/ctl

[Alexander Motin]

Author: mav
Date: Thu Feb  6 03:54:58 2014
New Revision: 261538
URL: http://svnweb.freebsd.org/changeset/base/261538

Log:
  Make CTL block backend return proper error code for operations unsupposed
  by the underlying device.
  
  MFC after:	2 weeks

Modified:
  head/sys/cam/ctl/ctl_backend_block.c

Modified: head/sys/cam/ctl/ctl_backend_block.c
==============================================================================
--- head/sys/cam/ctl/ctl_backend_block.c	Thu Feb  6 03:30:12 2014	(r261537)
+++ head/sys/cam/ctl/ctl_backend_block.c	Thu Feb  6 03:54:58 2014	(r261538)
@@ -510,6 +510,7 @@ ctl_be_block_biodone(struct bio *bio)
 	struct ctl_be_block_io *beio;
 	struct ctl_be_block_lun *be_lun;
 	union ctl_io *io;
+	int error;
 
 	beio = bio->bio_caller1;
 	be_lun = beio->lun;
@@ -517,8 +518,9 @@ ctl_be_block_biodone(struct bio *bio)
 
 	DPRINTF("entered\n");
 
+	error = bio->bio_error;
 	mtx_lock(&be_lun->lock);
-	if (bio->bio_error != 0)
+	if (error != 0)
 		beio->num_errors++;
 
 	beio->num_bios_done++;
@@ -550,7 +552,9 @@ ctl_be_block_biodone(struct bio *bio)
 	 * entire I/O with a medium error.
 	 */
 	if (beio->num_errors > 0) {
-		if (beio->bio_cmd == BIO_FLUSH) {
+		if (error == EOPNOTSUPP) {
+			ctl_set_invalid_opcode(&io->scsiio);
+		} else if (beio->bio_cmd == BIO_FLUSH) {
 			/* XXX KDM is there is a better error here? */
 			ctl_set_internal_failure(&io->scsiio,
 						 /*sks_valid*/ 1,