[PATCH 4/9] fs: add O_DIRECT support for sending down write life time hints
From: Jens Axboe <axboe@kernel.dk>
Date: 2017-06-21 00:22:16
Also in:
linux-fsdevel, linux-nvme
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Reviewed-by: Andreas Dilger <redacted> Signed-off-by: Jens Axboe <axboe@kernel.dk> --- fs/block_dev.c | 2 ++ fs/direct-io.c | 2 ++ fs/iomap.c | 1 + 3 files changed, 5 insertions(+)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index dd91c99e9ba0..30e1fb65c2fa 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c@@ -183,6 +183,8 @@ static unsigned int dio_bio_write_op(struct kiocb *iocb) /* avoid the need for a I/O completion work item */ if (iocb->ki_flags & IOCB_DSYNC) op |= REQ_FUA; + + op |= write_hint_to_opf(iocb_write_hint(iocb)); return op; }
diff --git a/fs/direct-io.c b/fs/direct-io.c
index c87077d1dc33..5fea570551e5 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c@@ -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_opf |= write_hint_to_opf(iocb_write_hint(dio->iocb)); + sdio->bio = bio; sdio->logical_offset_in_bio = sdio->cur_page_fs_offset; }
diff --git a/fs/iomap.c b/fs/iomap.c
index c71a64b97fba..9c9f8406018b 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c@@ -804,6 +804,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length, if (dio->flags & IOMAP_DIO_WRITE) { bio_set_op_attrs(bio, REQ_OP_WRITE, REQ_SYNC | REQ_IDLE); + bio->bi_opf |= write_hint_to_opf(inode_write_hint(inode)); task_io_account_write(bio->bi_iter.bi_size); } else { bio_set_op_attrs(bio, REQ_OP_READ, 0);
--
2.7.4