git: 529364b032d7 - main - iscsi: Add a helper routine to abort a data-out task.
John Baldwin
jhb at FreeBSD.org
Wed Sep 15 20:29:21 UTC 2021
The branch main has been updated by jhb:
URL: https://cgit.FreeBSD.org/src/commit/?id=529364b032d774bff4dc818ff23d20be482f9d99
commit 529364b032d774bff4dc818ff23d20be482f9d99
Author: John Baldwin <jhb at FreeBSD.org>
AuthorDate: 2021-09-15 20:25:04 +0000
Commit: John Baldwin <jhb at FreeBSD.org>
CommitDate: 2021-09-15 20:25:04 +0000
iscsi: Add a helper routine to abort a data-out task.
Reviewed by: mav
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D31891
---
sys/cam/ctl/ctl_frontend_iscsi.c | 39 ++++++++++++++++++++++-----------------
1 file changed, 22 insertions(+), 17 deletions(-)
diff --git a/sys/cam/ctl/ctl_frontend_iscsi.c b/sys/cam/ctl/ctl_frontend_iscsi.c
index 0cbe3bcefc73..ac94a786a701 100644
--- a/sys/cam/ctl/ctl_frontend_iscsi.c
+++ b/sys/cam/ctl/ctl_frontend_iscsi.c
@@ -1108,11 +1108,30 @@ cfiscsi_data_wait_free(struct cfiscsi_session *cs,
uma_zfree(cfiscsi_data_wait_zone, cdw);
}
+static void
+cfiscsi_data_wait_abort(struct cfiscsi_session *cs,
+ struct cfiscsi_data_wait *cdw, int status)
+{
+ union ctl_io *cdw_io;
+
+ /*
+ * Set nonzero port status; this prevents backends from
+ * assuming that the data transfer actually succeeded
+ * and writing uninitialized data to disk.
+ */
+ MPASS(status != 0);
+ cdw_io = cdw->cdw_ctl_io;
+ cdw_io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
+ cdw_io->scsiio.io_hdr.port_status = status;
+ cfiscsi_data_wait_free(cs, cdw);
+ ctl_datamove_done(cdw_io, false);
+}
+
static void
cfiscsi_session_terminate_tasks(struct cfiscsi_session *cs)
{
struct cfiscsi_data_wait *cdw;
- union ctl_io *io, *cdw_io;
+ union ctl_io *io;
int error, last, wait;
if (cs->cs_target == NULL)
@@ -1139,16 +1158,7 @@ cfiscsi_session_terminate_tasks(struct cfiscsi_session *cs)
while ((cdw = TAILQ_FIRST(&cs->cs_waiting_for_data_out)) != NULL) {
TAILQ_REMOVE(&cs->cs_waiting_for_data_out, cdw, cdw_next);
CFISCSI_SESSION_UNLOCK(cs);
- /*
- * Set nonzero port status; this prevents backends from
- * assuming that the data transfer actually succeeded
- * and writing uninitialized data to disk.
- */
- cdw_io = cdw->cdw_ctl_io;
- cdw_io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
- cdw_io->scsiio.io_hdr.port_status = 42;
- cfiscsi_data_wait_free(cs, cdw);
- ctl_datamove_done(cdw_io, false);
+ cfiscsi_data_wait_abort(cs, cdw, 42);
CFISCSI_SESSION_LOCK(cs);
}
CFISCSI_SESSION_UNLOCK(cs);
@@ -2931,7 +2941,6 @@ cfiscsi_task_management_done(union ctl_io *io)
struct cfiscsi_data_wait *cdw, *tmpcdw;
struct cfiscsi_session *cs, *tcs;
struct cfiscsi_softc *softc;
- union ctl_io *cdw_io;
int cold_reset = 0;
request = PRIV_REQUEST(io);
@@ -2965,11 +2974,7 @@ cfiscsi_task_management_done(union ctl_io *io)
#endif
TAILQ_REMOVE(&cs->cs_waiting_for_data_out,
cdw, cdw_next);
- cdw_io = cdw->cdw_ctl_io;
- cdw_io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
- cdw_io->scsiio.io_hdr.port_status = 43;
- cfiscsi_data_wait_free(cs, cdw);
- ctl_datamove_done(cdw_io, false);
+ cfiscsi_data_wait_abort(cs, cdw, 43);
}
CFISCSI_SESSION_UNLOCK(cs);
}
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