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

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2017-06-27 11:01:22 -06:00
parent f793dfd3f3
commit 45d06cf701
4 changed files with 6 additions and 0 deletions
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1
fs/aio.c
View File

@ -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) {
/*

2
fs/block_dev.c
View File

@ -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;

2
fs/direct-io.c
View File

@ -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;
}

1
fs/iomap.c
View File

@ -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;