All callers now pass in GFP_KERNEL, get rid of the argument.
Reviewed-by: NBart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Tested-by: NMing Lei <ming.lei@redhat.com>
Signed-off-by: NJens Axboe <axboe@fb.com>