tree 6333c1ba1ce00b3a3a2254acc34db552ae9c4159
parent 3f40bf2c89223192535a72a4d49ce7d68d8ed9dd
author Christoph Hellwig <hch@lst.de> 1468920521 +0200
committer Jens Axboe <axboe@fb.com> 1469057821 -0600

block: get rid of bio_rw and READA

These two are confusing leftover of the old world order, combining
values of the REQ_OP_ and REQ_ namespaces.  For callers that don't
special case we mostly just replace bi_rw with bio_data_dir or
op_is_write, except for the few cases where a switch over the REQ_OP_
values makes more sense.  Any check for READA is replaced with an
explicit check for REQ_RAHEAD.  Also remove the READA alias for
REQ_RAHEAD.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>