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Xiubo Li a94a2572b9 scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes 
Currently there is one cmd timeout timer and one qfull timer for each udev,
and whenever any new command is coming in we will update the cmd timer or
qfull timer. For some corner cases the timers are always working only for
the ringbuffer's and full queue's newest cmd. That's to say the timer won't
be fired even if one cmd has been stuck for a very long time and the
deadline is reached.

This fix will keep the cmd/qfull timers to be pended for the oldest cmd in
ringbuffer and full queue, and will update them with the next cmd's
deadline only when the old cmd's deadline is reached or removed from the
ringbuffer and full queue.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Acked-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 		2019-01-11 20:58:52 -05:00
..
iscsi scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed 2019-01-08 21:57:25 -05:00
loopback scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
sbp scsi: target: replace fabric_ops.name with fabric_alias 2018-11-28 18:50:59 -05:00
tcm_fc scsi: target: replace fabric_ops.name with fabric_alias 2018-11-28 18:50:59 -05:00
Kconfig target: don't depend on SCSI 2018-08-02 15:19:49 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_alua.c scsi: target: drop unnecessary get_fabric_name() accessor from fabric_ops 2018-11-28 18:50:58 -05:00
target_core_alua.h Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-11-24 19:19:20 -10:00
target_core_configfs.c scsi: target: add device vendor_id configfs attribute 2018-12-07 21:54:33 -05:00
target_core_device.c scsi: target: perform t10_wwn ID initialisation in target_alloc_device() 2018-12-07 21:54:33 -05:00
target_core_fabric_configfs.c scsi: target: drop unnecessary get_fabric_name() accessor from fabric_ops 2018-11-28 18:50:58 -05:00
target_core_fabric_lib.c target-core: don't use "const char*" for a buffer that is written to 2018-01-12 15:07:09 -08:00
target_core_file.c iov_iter: Separate type from direction and use accessor functions 2018-10-24 00:41:07 +01:00
target_core_file.h scsi: target: target/file: Add support of direct and async I/O 2018-05-14 22:40:08 -04:00
target_core_hba.c target: Fix target_sense_desc_format NULL pointer dereference 2015-09-24 23:17:23 -07:00
target_core_iblock.c scsi: target/core: Use the SECTOR_SHIFT constant 2018-10-16 01:13:35 -04:00
target_core_iblock.h scsi: target/core: Use the SECTOR_SHIFT constant 2018-10-16 01:13:35 -04:00
target_core_internal.h scsi: target/core: Make ABORT and LUN RESET handling synchronous 2018-12-07 21:22:55 -05:00
target_core_pr.c scsi: target: drop unnecessary get_fabric_name() accessor from fabric_ops 2018-11-28 18:50:58 -05:00
target_core_pr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_pscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
target_core_pscsi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_rd.c target: break up free_device callback 2017-07-06 23:11:37 -07:00
target_core_rd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_sbc.c scsi: target/core: Always call transport_complete_callback() upon failure 2018-10-16 01:13:35 -04:00
target_core_spc.c scsi: target: remove hardcoded T10 Vendor ID in INQUIRY response 2018-12-07 21:54:33 -05:00
target_core_stat.c scsi: target: consistently null-terminate t10_wwn strings 2018-12-07 21:54:33 -05:00
target_core_tmr.c scsi: target/core: Make ABORT and LUN RESET handling synchronous 2018-12-07 21:22:55 -05:00
target_core_tpg.c scsi: target/core: Simplify transport_clear_lun_ref() 2018-12-07 21:20:07 -05:00
target_core_transport.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
target_core_ua.c scsi: target: drop unnecessary get_fabric_name() accessor from fabric_ops 2018-11-28 18:50:58 -05:00
target_core_ua.h scsi: target: Fix handling of removed LUNs 2018-07-02 16:44:32 -04:00
target_core_user.c scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes 2019-01-11 20:58:52 -05:00
target_core_xcopy.c scsi: target/core: Make sure that target_wait_for_sess_cmds() waits long enough 2018-12-07 21:20:07 -05:00
target_core_xcopy.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00