block: make __blkdev_direct_IO_sync() support O_SYNC/DSYNC
Split the op setting code into a helper, use it in both places. Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -176,6 +176,16 @@ static struct inode *bdev_file_inode(struct file *file)
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return file->f_mapping->host;
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}
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static unsigned int dio_bio_write_op(struct kiocb *iocb)
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{
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unsigned int op = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
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/* avoid the need for a I/O completion work item */
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if (iocb->ki_flags & IOCB_DSYNC)
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op |= REQ_FUA;
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return op;
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}
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#define DIO_INLINE_BIO_VECS 4
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static void blkdev_bio_end_io_simple(struct bio *bio)
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@ -226,11 +236,11 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
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ret = bio.bi_iter.bi_size;
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if (iov_iter_rw(iter) == READ) {
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bio_set_op_attrs(&bio, REQ_OP_READ, 0);
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bio.bi_opf = REQ_OP_READ;
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if (iter_is_iovec(iter))
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should_dirty = true;
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} else {
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bio_set_op_attrs(&bio, REQ_OP_WRITE, REQ_SYNC | REQ_IDLE);
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bio.bi_opf = dio_bio_write_op(iocb);
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task_io_account_write(ret);
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}
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