Commit 4382e33a authored by Bart Van Assche's avatar Bart Van Assche Committed by Jens Axboe

block, dm-crypt, btrfs: Introduce bio_flags()

Introduce the bio_flags() macro. Ensure that the second argument of
bio_set_op_attrs() only contains flags and no operation. This patch
does not change any functionality.
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Chris Mason <clm@fb.com> (maintainer:BTRFS FILE SYSTEM)
Cc: Josef Bacik <jbacik@fb.com> (maintainer:BTRFS FILE SYSTEM)
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Damien Le Moal <damien.lemoal@hgst.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 637ca77b
......@@ -1136,7 +1136,7 @@ static void clone_init(struct dm_crypt_io *io, struct bio *clone)
clone->bi_private = io;
clone->bi_end_io = crypt_endio;
clone->bi_bdev = cc->dev->bdev;
bio_set_op_attrs(clone, bio_op(io->base_bio), io->base_bio->bi_opf);
bio_set_op_attrs(clone, bio_op(io->base_bio), bio_flags(io->base_bio));
}
static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp)
......
......@@ -8412,7 +8412,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
if (!bio)
return -ENOMEM;
bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_opf);
bio_set_op_attrs(bio, bio_op(orig_bio), bio_flags(orig_bio));
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
......@@ -8450,7 +8450,8 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
start_sector, GFP_NOFS);
if (!bio)
goto out_err;
bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_opf);
bio_set_op_attrs(bio, bio_op(orig_bio),
bio_flags(orig_bio));
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
......
......@@ -90,11 +90,12 @@ struct bio {
};
#define BIO_OP_SHIFT (8 * FIELD_SIZEOF(struct bio, bi_opf) - REQ_OP_BITS)
#define bio_flags(bio) ((bio)->bi_opf & ((1 << BIO_OP_SHIFT) - 1))
#define bio_op(bio) ((bio)->bi_opf >> BIO_OP_SHIFT)
#define bio_set_op_attrs(bio, op, op_flags) do { \
WARN_ON(op >= (1 << REQ_OP_BITS)); \
(bio)->bi_opf &= ((1 << BIO_OP_SHIFT) - 1); \
(bio)->bi_opf = bio_flags(bio); \
(bio)->bi_opf |= ((unsigned int) (op) << BIO_OP_SHIFT); \
(bio)->bi_opf |= op_flags; \
} while (0)
......
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