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
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aten.c
bpck6.c
bpck.c
comm.c
dstr.c
epat.c
epia.c
fit2.c
fit3.c
friq.c
frpw.c
kbic.c
Kconfig	drivers/block/paride: remove depends on CONFIG_EXPERIMENTAL	2013-01-21 14:52:42 -08:00
ktti.c
Makefile
mkd
on20.c
on26.c
paride.c
paride.h
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
pt.c
Transition-notes