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Mike Christie d04958a348 scsi: iscsi: Fix conn use after free during resets 
[ Upstream commit ec29d0ac29be366450a7faffbcf8cba3a6a3b506 ]

If we haven't done a unbind target call we can race where
iscsi_conn_teardown wakes up the EH thread and then frees the conn while
those threads are still accessing the conn ehwait.

We can only do one TMF per session so this just moves the TMF fields from
the conn to the session. We can then rely on the
iscsi_session_teardown->iscsi_remove_session->__iscsi_unbind_session call
to remove the target and it's devices, and know after that point there is
no device or scsi-ml callout trying to access the session.

Link: https://lore.kernel.org/r/20210525181821.7617-14-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-07-20 16:10:43 +02:00
..
fc SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
fc_encode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fc_frame.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fcoe_sysfs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
iscsi_if.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
iscsi_proto.h scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" 2020-02-28 17:22:25 +01:00
iser.h IB/iser,isert: Create and use new shared header 2015-12-24 00:17:35 -05:00
libfc.h scsi: libfc: Whitespace cleanup in libfc.h 2019-07-29 20:43:06 -04:00
libfcoe.h Fix misc new gcc warnings 2021-05-11 14:04:16 +02:00
libiscsi.h scsi: iscsi: Fix conn use after free during resets 2021-07-20 16:10:43 +02:00
libiscsi_tcp.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
libsas.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
sas.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
sas_ata.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi.h scsi: libsas: Remove scsi_to_u32() 2019-01-29 00:46:22 -05:00
scsi_bsg_iscsi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_cmnd.h scsi: core: add support for request batching 2019-07-22 16:44:07 -04:00
scsi_common.h scsi: target: core: Add CONTROL field for trace events 2020-10-29 09:58:04 +01:00
scsi_dbg.h scsi: core: Reduce memory required for SCSI logging 2019-08-07 21:47:29 -04:00
scsi_device.h scsi: Check sense buffer size at build time 2018-08-02 15:23:51 -06:00
scsi_devinfo.h scsi: devinfo: BLIST_RETRY_ASC_C1 for Fujitsu ETERNUS 2018-04-20 19:14:36 -04:00
scsi_dh.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_driver.h scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
scsi_eh.h scsi: core: save/restore command resid for error handling 2019-10-03 21:43:04 -04:00
scsi_host.h scsi: core: add support for request batching 2019-07-22 16:44:07 -04:00
scsi_ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_proto.h scsi: core: Add VENDOR_SPECIFIC sense code definitions 2018-01-22 20:04:02 -05:00
scsi_request.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_tcq.h scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_transport.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_transport_fc.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_transport_iscsi.h scsi: iscsi: Add iscsi_cls_conn refcount helpers 2021-07-20 16:10:43 +02:00
scsi_transport_sas.h scsi: libsas: direct call probe and destruct 2018-01-10 23:24:02 -05:00
scsi_transport_spi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_transport_srp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsicam.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
srp.h include/scsi/srp.h: Add support for immediate data 2018-12-19 15:07:25 -05:00
viosrp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00