Commit 45d06cf7 authored by Jens Axboe's avatar Jens Axboe
Browse files

fs: add O_DIRECT and aio support for sending down write life time hints 



Reviewed-by: default avatarAndreas Dilger <adilger@dilger.ca>
Reviewed-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f793dfd3

fs/aio.c

+1 −0
Original line number Diff line number Diff line
@@ -1568,6 +1568,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, 
	req->common.ki_pos = iocb->aio_offset;

	req->common.ki_complete = aio_complete;

	req->common.ki_flags = iocb_flags(req->common.ki_filp);

	req->common.ki_hint = file_write_hint(file);



	if (iocb->aio_flags & IOCB_FLAG_RESFD) {

		/*

fs/block_dev.c

+2 −0
Original line number Diff line number Diff line
@@ -225,6 +225,7 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter, 
	bio_init(&bio, vecs, nr_pages);

	bio.bi_bdev = bdev;

	bio.bi_iter.bi_sector = pos >> 9;

	bio.bi_write_hint = iocb->ki_hint;

	bio.bi_private = current;

	bio.bi_end_io = blkdev_bio_end_io_simple;
@@ -360,6 +361,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) 
	for (;;) {

		bio->bi_bdev = bdev;

		bio->bi_iter.bi_sector = pos >> 9;

		bio->bi_write_hint = iocb->ki_hint;

		bio->bi_private = dio;

		bio->bi_end_io = blkdev_bio_end_io;

fs/direct-io.c

+2 −0
Original line number Diff line number Diff line
@@ -385,6 +385,8 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio, 
	else

		bio->bi_end_io = dio_bio_end_io;



	bio->bi_write_hint = dio->iocb->ki_hint;



	sdio->bio = bio;

	sdio->logical_offset_in_bio = sdio->cur_page_fs_offset;

}

fs/iomap.c

+1 −0
Original line number Diff line number Diff line
@@ -793,6 +793,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length, 
		bio->bi_bdev = iomap->bdev;

		bio->bi_iter.bi_sector =

			iomap->blkno + ((pos - iomap->offset) >> 9);

		bio->bi_write_hint = dio->iocb->ki_hint;

		bio->bi_private = dio;

		bio->bi_end_io = iomap_dio_bio_end_io;

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