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f147abb475
linux/drivers/target
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Nicholas Bellinger f147abb475 target: Check -ENOMEM to signal QUEUE_FULL from fabric callbacks 
This patch changes target core to also check for -ENOMEM from fabric callbacks
to signal QUEUE_FULL status, instead of just -EAGAIN in order to catch a
larger set of fabric failure cases that want to trigger QUEUE_FULL logic.
This includes the callbacks for ->write_pending(), ->queue_data_in() and
->queue_status().

It also makes transport_generic_write_pending() return zero upon QUEUE_FULL,
and removes two unnecessary -EAGAIN checks to catch write pending QUEUE_FULL
cases from transport_generic_new_cmd() failures in transport_handle_cdb_direct()
and transport_processing_thread():TRANSPORT_NEW_CMD_MAP state.

Reported-by: Bart Van Assche <bvanassche@acm.org>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-10-27 01:00:06 +00:00
..
iscsi target: Fix incorrect transport_sent usage 2011-10-24 03:22:06 +00:00
loopback tcm_loop: Add explict read buffer memset for SCF_SCSI_CONTROL_SG_IO_CDB 2011-10-26 20:42:13 +00:00
tcm_fc target: remove the TRANSPORT_REMOVE state 2011-10-24 03:21:47 +00:00
Kconfig iscsi-target: Add iSCSI fabric support for target v4.1 2011-07-26 09:16:43 +00:00
Makefile target: remove the ->transport_split_cdb callback in se_cmd 2011-10-24 03:21:15 +00:00
target_core_alua.c target: Fix REPORT TARGET PORT GROUPS handling with small allocation length 2011-10-24 03:21:19 +00:00
target_core_alua.h
target_core_cdb.c target: Fix compile warning w/ missing module.h include 2011-10-26 20:42:13 +00:00
target_core_configfs.c target: Remove legacy se_task->task_timer and associated logic 2011-10-24 03:22:08 +00:00
target_core_device.c target: Remove legacy se_task->task_timer and associated logic 2011-10-24 03:22:08 +00:00
target_core_fabric_configfs.c target: Remove unneeded version.h includes 2011-10-11 04:10:19 +00:00
target_core_fabric_lib.c target: remove custom hex2bin() implementation 2011-07-22 09:37:49 +00:00
target_core_file.c target: clean up the backend interface to caching parameters 2011-10-24 03:21:31 +00:00
target_core_file.h target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_hba.c target: Follow up core updates from AGrover and HCH (round 4) 2011-07-22 09:37:48 +00:00
target_core_hba.h
target_core_iblock.c target: clean up the backend interface to caching parameters 2011-10-24 03:21:31 +00:00
target_core_iblock.h target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_pr.c target: Remove unneeded version.h includes 2011-10-11 04:10:19 +00:00
target_core_pr.h target: Core cleanups from AGrover (round 1) 2011-07-22 09:37:43 +00:00
target_core_pscsi.c target: remove the task_sg_bidi field se_task and pSCSI BIDI support 2011-10-24 03:21:56 +00:00
target_core_pscsi.h target: cleanup pscsi request submission 2011-10-24 03:20:44 +00:00
target_core_rd.c target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_rd.h target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_stat.c target: Remove unneeded version.h includes 2011-10-11 04:10:19 +00:00
target_core_stat.h [SCSI] target: add initial statistics 2011-03-23 11:36:50 -05:00
target_core_tmr.c target: use a workqueue for I/O completions 2011-10-24 03:21:52 +00:00
target_core_tpg.c target: Convert acl_node_lock to be IRQ-disabling 2011-08-22 19:28:36 +00:00
target_core_transport.c target: Check -ENOMEM to signal QUEUE_FULL from fabric callbacks 2011-10-27 01:00:06 +00:00
target_core_ua.c target: Remove unneeded version.h includes 2011-10-11 04:10:19 +00:00
target_core_ua.h