tree 3b472f6f398cc774baf556fd592eb7b0acce262e
parent 1018b8b90b1f5cf239d731fb792ddc2b4a2b4ef5
author Christoph Hellwig <hch@lst.de> 1420486178 +0100
committer Christoph Hellwig <hch@lst.de> 1420814581 +0100

scsi: ->queue_rq can't sleep

The blk-mq ->queue_rq method is always called from process context,
but might have preemption disabled.  This means we still always
have to use GFP_ATOMIC for memory allocations, and thus need to
revert part of commit 3c356bde1 ("scsi: stop passing a gfp_mask
argument down the command setup path").

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Tested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>