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a492f07545
linux/drivers/block/paride
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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
..
aten.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
bpck6.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
bpck.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
comm.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
dstr.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
epat.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
epia.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
fit2.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
fit3.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
friq.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
frpw.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
kbic.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
Kconfig drivers/block/paride: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:52:42 -08:00
ktti.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
Makefile
mkd
on20.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
on26.c [PATCH] paride_register(): shuffle return values 2006-12-07 08:39:33 -08:00
paride.c [PATCH] paride: remove parport #ifdef's 2006-12-07 08:39:45 -08:00
paride.h [PATCH] paride: rename pi_register() and pi_unregister() 2006-12-07 08:39:33 -08:00
pcd.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00
pd.c block,scsi: fixup blk_get_request dead queue scenarios 2014-08-28 10:03:46 -06:00
pf.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00
pg.c drivers/block/paride/pg.c: underflow bug in pg_write() 2014-01-21 20:16:56 -08:00
ppc6lnx.c
pseudo.h WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
pt.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
Transition-notes