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linux-stable/drivers/target
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Nicholas Bellinger 80bfdfa924 target/pr: Use atomic bitop for se_dev_entry->deve_flags reservation check 
This patch converts the core_scsi3_pr_seq_non_holder() check for non
reservation holding registrations to use an atomic bitop in ->deve_flags
to determine if a registration is currently active.

It also includes associated a set_bit() in __core_scsi3_add_registration()
and clear_bit() in __core_scsi3_free_registration(), if se_dev_entry still
exists, and has not already been released via se_dev_entry shutdown path
in core_disable_device_list_for_node().

Also, clear_bit in core_disable_device_list_for_node as well to ensure
the read-critical path in core_scsi3_pr_seq_non_holder() picks up the
new state, preceeding the final kfree_rcu() call.

Reported-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-06-01 00:24:00 -07:00
..
iscsi iscsi-target: fix variable name typo in iscsi_check_acceptor_state() 2015-05-30 22:42:41 -07:00
loopback target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
sbp target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
tcm_fc target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
Kconfig target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
Makefile target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
target_core_alua.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_alua.h target_core_alua: Referrals configfs integration 2014-01-09 21:48:35 -08:00
target_core_configfs.c target: remove struct target_fabric_configfs_template 2015-05-30 22:42:38 -07:00
target_core_device.c target/pr: Use atomic bitop for se_dev_entry->deve_flags reservation check 2015-06-01 00:24:00 -07:00
target_core_fabric_configfs.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_fabric_lib.c target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
target_core_file.c target: fix DPO and FUA bit checks 2015-05-30 22:41:44 -07:00
target_core_file.h target/file: Remove fd_prot bounce buffer 2015-05-30 22:41:42 -07:00
target_core_hba.c target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
target_core_iblock.c target: Use a PASSTHROUGH flag instead of transport_types 2015-05-30 19:58:11 -07:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_pr.c target/pr: Use atomic bitop for se_dev_entry->deve_flags reservation check 2015-06-01 00:24:00 -07:00
target_core_pr.h target: Fix APTPL metadata handling for dynamic MappedLUNs 2014-10-04 05:40:19 +00:00
target_core_pscsi.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_pscsi.h target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST 2015-05-30 19:11:02 -07:00
target_core_rd.c target: Merge sbc_verify_dif_read|write 2015-05-30 22:41:41 -07:00
target_core_rd.h target/rd: Add support for protection SGL setup + release 2014-01-19 02:22:05 +00:00
target_core_sbc.c target: handle odd SG mapping for data transfer memory 2015-05-30 22:42:25 -07:00
target_core_spc.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_stat.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_tmr.c target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
target_core_tpg.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_transport.c target: remove ->put_session method 2015-05-30 22:42:40 -07:00
target_core_ua.c target: Convert se_node_acl->device_list[] to RCU hlist 2015-06-01 00:23:46 -07:00
target_core_ua.h target: target_core_ua_h: Add #define of include guard 2014-09-15 14:27:43 -07:00
target_core_user.c target/user: Add support for bidirectional commands 2015-05-30 22:41:47 -07:00
target_core_xcopy.c target: target_core_configfs.h is not needed in fabric drivers 2015-05-30 22:42:39 -07:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00