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linux-stable/drivers/target
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Nicholas Bellinger 5277797dc4 target: Add percpu refcounting for se_lun access 
This patch adds percpu refcounting for se_lun access that allows the
association of an se_lun + se_cmd in transport_lookup_cmd_lun() to
occur without an extra list_head for tracking outstanding I/O during
se_lun shutdown.

This effectively changes se_lun shutdown logic to wait for outstanding
I/O percpu references to complete in transport_lun_remove_cmd() using
se_lun->lun_ref_comp, instead of explicitly draining the per se_lun
command list and waiting for individual se_cmd descriptor processing
to complete.

Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-11-07 14:24:52 -08:00
..
iscsi iscsi-target: Do not generate REJECTs for zero-length DataOUT 2013-11-07 12:08:56 -08:00
loopback tcm_loop: Implement target reset 2013-10-16 15:42:52 -07:00
sbp target: Remove TF_CIT_TMPL macro 2013-10-16 13:35:02 -07:00
tcm_fc target: Remove TF_CIT_TMPL macro 2013-10-16 13:35:02 -07:00
Kconfig sbp-target: Initial merge of firewire/ieee-1394 target mode support 2012-05-09 15:25:17 -07:00
Makefile target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00
target_core_alua.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_alua.h target: pass sense_reason as a return value 2012-11-06 20:55:46 -08:00
target_core_configfs.c target: Remove TF_CIT_TMPL macro 2013-10-16 13:35:02 -07:00
target_core_device.c target: Add percpu refcounting for se_lun access 2013-11-07 14:24:52 -08:00
target_core_fabric_configfs.c target: Remove TF_CIT_TMPL macro 2013-10-16 13:35:02 -07:00
target_core_fabric_lib.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_file.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_file.h target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os 2013-03-19 17:24:28 -07:00
target_core_hba.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_iblock.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -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: Add percpu refcounting for se_lun access 2013-11-07 14:24:52 -08:00
target_core_pr.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_pr.h target: Alter core_pr_dump_initiator_port for ease of use 2013-06-14 00:04:31 -07:00
target_core_pscsi.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_pscsi.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_rd.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_rd.h target/rd: Add ramdisk bit for NULLIO operation 2013-05-11 16:22:39 -07:00
target_core_sbc.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_spc.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-09-12 16:11:45 -07:00
target_core_stat.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_tmr.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_tpg.c target: Add percpu refcounting for se_lun access 2013-11-07 14:24:52 -08:00
target_core_transport.c target: Add percpu refcounting for se_lun access 2013-11-07 14:24:52 -08:00
target_core_ua.c target: Update copyright ownership/year information to 2013 2013-09-10 20:23:36 -07:00
target_core_ua.h target: pass sense_reason as a return value 2012-11-06 20:55:46 -08:00
target_core_xcopy.c target: Add percpu refcounting for se_lun access 2013-11-07 14:24:52 -08:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00