Joe Lawrence a492f07545 block,scsi: fixup blk_get_request dead queue scenarios ... The blk_get_request function may fail in low-memory conditions or during device removal (even if __GFP_WAIT is set). To distinguish between these errors, modify the blk_get_request call stack to return the appropriate ERR_PTR. Verify that all callers check the return status and consider IS_ERR instead of a simple NULL pointer check. For consistency, make a similar change to the blk_mq_alloc_request leg of blk_get_request. It may fail if the queue is dead, or the caller was unwilling to wait. Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Acked-by: Jiri Kosina <jkosina@suse.cz> [for pktdvd] Acked-by: Boaz Harrosh <bharrosh@panasas.com> [for osd] Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2014-08-28 10:03:46 -06:00
..
iscsi	iscsi-target: fix iscsit_del_np deadlock on unload	2014-06-27 23:23:35 -07:00
loopback	scsi: use 64-bit LUNs	2014-07-17 22:07:37 +02:00
sbp	target: Pass in transport supported PI at session initialization	2014-04-07 01:48:54 -07:00
tcm_fc	tcm_fc: Generate TASK_SET_FULL status for response failures	2014-06-06 14:20:51 -07:00
Kconfig	target/iblock: Add blk_integrity + BIP passthrough support	2014-01-18 10:14:22 +00:00
Makefile	target: Add support for EXTENDED_COPY copy offload emulation	2013-09-10 16:48:43 -07:00
target_core_alua.c	Merge branch 'next' (accumulated 3.16 merge window patches) into master	2014-06-08 11:31:16 -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: Fix alua_access_state attribute OOPs for un-configured devices	2014-06-06 01:22:41 -07:00
target_core_device.c	target: Fix left-over se_lun->lun_sep pointer OOPs	2014-06-26 20:56:49 -07:00
target_core_fabric_configfs.c	target: Fix sizeof in kmalloc for some default_groups arrays	2013-12-16 12:42:20 -08:00
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/file: place escape values for protection information format	2014-04-07 01:48:39 -07:00
target_core_file.h	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-01-31 15:31:23 -08:00
target_core_hba.c	target: Update copyright ownership/year information to 2013	2013-09-10 20:23:36 -07:00
target_core_iblock.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
target_core_iblock.h	target: kill struct se_subsystem_dev	2012-11-06 20:55:43 -08:00
target_core_internal.h	target/configfs: Expose protection device attributes	2014-01-18 09:57:47 +00:00
target_core_pr.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
target_core_pr.h	drivers: target: Move prototype declaration of function to header file target_core_pr.h	2014-01-09 21:48:36 -08:00
target_core_pscsi.c	block,scsi: fixup blk_get_request dead queue scenarios	2014-08-28 10:03:46 -06:00
target_core_pscsi.h	target: kill struct se_subsystem_dev	2012-11-06 20:55:43 -08:00
target_core_rd.c	target/rd: T10-Dif: RAM disk is allocating more space than required.	2014-04-07 01:48:53 -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/sbc,loopback: Adjust command data length in case pi exists on the wire	2014-06-11 13:06:50 -07:00
target_core_spc.c	target: Report correct response length for some commands	2014-06-11 12:15:30 -07:00
target_core_stat.c	target: Convert se_device statistics to atomic_long_t	2013-11-13 18:34:55 -08:00
target_core_tmr.c	target: Add check to prevent Abort Task from aborting itself	2014-04-11 15:27:15 -07:00
target_core_tpg.c	percpu-refcount: require percpu_ref to be exited explicitly	2014-06-28 08:10:14 -04:00
target_core_transport.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-06-12 22:38:32 -07:00
target_core_ua.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
target_core_ua.h	target core: rename (ex,im)plict -> (ex,im)plicit	2013-11-20 11:24:40 -08:00
target_core_xcopy.c	target: cleanup some boolean tests	2014-06-06 14:21:01 -07:00
target_core_xcopy.h	target: Add support for EXTENDED_COPY copy offload emulation	2013-09-10 16:48:43 -07:00