[PATCH 6/9] ext4: add support for passing in write hints for buffered writes
From: Jens Axboe <axboe@kernel.dk>
Date: 2017-06-21 00:22:18
Also in:
linux-fsdevel, linux-nvme
Subsystem:
ext4 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
"Theodore Ts'o", Alexander Viro, Christian Brauner, Linus Torvalds
Reviewed-by: Andreas Dilger <redacted> Signed-off-by: Jens Axboe <axboe@kernel.dk> --- fs/ext4/page-io.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 930ca0fc9a0f..92834b702728 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c@@ -350,6 +350,7 @@ void ext4_io_submit(struct ext4_io_submit *io) if (bio) { int io_op_flags = io->io_wbc->sync_mode == WB_SYNC_ALL ? REQ_SYNC : 0; + io_op_flags |= write_hint_to_opf(inode_write_hint(io->io_end->inode)); bio_set_op_attrs(io->io_bio, REQ_OP_WRITE, io_op_flags); submit_bio(io->io_bio); }
@@ -397,6 +398,7 @@ static int io_submit_add_bh(struct ext4_io_submit *io, ret = io_submit_init_bio(io, bh); if (ret) return ret; + io->io_bio->bi_opf |= write_hint_to_opf(inode_write_hint(inode)); } ret = bio_add_page(io->io_bio, page, bh->b_size, bh_offset(bh)); if (ret != bh->b_size)
--
2.7.4