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authorDennis Zhou (Facebook) <dennisszhou@gmail.com>2018-09-11 14:41:32 -0400
committerJens Axboe <axboe@kernel.dk>2018-09-21 20:29:11 -0600
commitbdc2491708c47601603918a9a20acddef6e1d814 (patch)
treee10633b8836287b7c29c040665f6518db20f8d4a /fs/ext4/page-io.c
parent74b7c02a9bc124ee3df0d77880ee26db0a325516 (diff)
blkcg: associate writeback bios with a blkg
One of the goals of this series is to remove a separate reference to the css of the bio. This can and should be accessed via bio_blkcg. In this patch, the wbc_init_bio call is changed such that it must be called after a queue has been associated with the bio. Signed-off-by: Dennis Zhou <dennisszhou@gmail.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/ext4/page-io.c')
-rw-r--r--fs/ext4/page-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index db7590178dfc..2aa62d58d8dd 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -374,13 +374,13 @@ static int io_submit_init_bio(struct ext4_io_submit *io,
bio = bio_alloc(GFP_NOIO, BIO_MAX_PAGES);
if (!bio)
return -ENOMEM;
- wbc_init_bio(io->io_wbc, bio);
bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio_set_dev(bio, bh->b_bdev);
bio->bi_end_io = ext4_end_bio;
bio->bi_private = ext4_get_io_end(io->io_end);
io->io_bio = bio;
io->io_next_block = bh->b_blocknr;
+ wbc_init_bio(io->io_wbc, bio);
return 0;
}