Roland Dreier
28638887f3
target: Convert acl_node_lock to be IRQ-disabling ...
With qla2xxx, acl_node_lock is taken inside qla2xxx's hardware_lock,
which is taken in hardirq context. This means acl_node_lock must become
an IRQ-disabling lock; in particular this fixes lockdep warnings along
the lines of
======================================================
[ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ]
(&(&se_tpg->acl_node_lock)->rlock){+.....}, at: [<ffffffffa026f872>] transport_deregister_session+0x92/0x140 [target_core_mod]
and this task is already holding:
(&(&ha->hardware_lock)->rlock){-.-...}, at: [<ffffffffa017c5e7>] qla_tgt_stop_phase1+0x57/0x2c0 [qla2xxx]
which would create a new lock dependency:
(&(&ha->hardware_lock)->rlock){-.-...} -> (&(&se_tpg->acl_node_lock)->rlock){+.....}
but this new dependency connects a HARDIRQ-irq-safe lock:
(&(&ha->hardware_lock)->rlock){-.-...}
to a HARDIRQ-irq-unsafe lock:
(&(&se_tpg->acl_node_lock)->rlock){+.....}
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:28:36 +00:00
iscsi-target: Fix iscsit_allocate_se_cmd_for_tmr failure path bugs
2011-08-22 19:26:30 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Convert acl_node_lock to be IRQ-disabling
2011-08-22 19:28:36 +00:00
iscsi-target: Add iSCSI fabric support for target v4.1
2011-07-26 09:16:43 +00:00
iscsi-target: Add iSCSI fabric support for target v4.1
2011-07-26 09:16:43 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Print subpage too for unhandled MODE SENSE pages
2011-08-22 19:26:31 +00:00
target: fix typo Assoication -> Association
2011-07-22 09:37:49 +00:00
target: Convert acl_node_lock to be IRQ-disabling
2011-08-22 19:28:36 +00:00
target: Use ERR_CAST inlined function
2011-08-22 19:26:15 +00:00
target: remove custom hex2bin() implementation
2011-07-22 09:37:49 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG
2011-07-22 09:37:48 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Convert acl_node_lock to be IRQ-disabling
2011-08-22 19:28:36 +00:00
target: Core cleanups from AGrover (round 1)
2011-07-22 09:37:43 +00:00
target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG
2011-07-22 09:37:48 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Convert target_core_rd.c to use use BUG_ON
2011-08-22 19:26:17 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Pass 2nd param of transport_split_cdb by value
2011-07-22 09:37:48 +00:00
target: Pass 2nd param of transport_split_cdb by value
2011-07-22 09:37:48 +00:00
target: Core cleanups from AGrover (round 1)
2011-07-22 09:37:43 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
target: Convert acl_node_lock to be IRQ-disabling
2011-08-22 19:28:36 +00:00
target: Make locking in transport_deregister_session() IRQ safe
2011-08-22 19:26:33 +00:00
target: Follow up core updates from AGrover and HCH (round 4)
2011-07-22 09:37:48 +00:00
28638887f3