block: export bio_associate_*() and wbc_account_io()
bio_associate_blkcg(), bio_associate_current() and wbc_account_io()
are used to implement cgroup writeback support for filesystems and
thus need to be exported. Export them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/block/bio.c b/block/bio.c
index 2a00d34..b671a0f 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -2009,6 +2009,7 @@
bio->bi_css = blkcg_css;
return 0;
}
+EXPORT_SYMBOL_GPL(bio_associate_blkcg);
/**
* bio_associate_current - associate a bio with %current
@@ -2039,6 +2040,7 @@
bio->bi_css = task_get_css(current, blkio_cgrp_id);
return 0;
}
+EXPORT_SYMBOL_GPL(bio_associate_current);
/**
* bio_disassociate_task - undo bio_associate_current()