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Subject[PATCH] bfq: Fix bfq linkage error
Date
From: Pavel Begunkov <asml.silence@gmail.com>

Since commit 795fe54c2a828099e ("bfq: Add per-device weight"), bfq uses
blkg_conf_prep() and blkg_conf_finish(), which are not exported. So, it
causes linkage error if bfq compiled as a module.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
block/blk-cgroup.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 0e2619c1a422..b6f20be0fc78 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -900,6 +900,7 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
}
return ret;
}
+EXPORT_SYMBOL_GPL(blkg_conf_prep);

/**
* blkg_conf_finish - finish up per-blkg config update
@@ -915,6 +916,7 @@ void blkg_conf_finish(struct blkg_conf_ctx *ctx)
rcu_read_unlock();
put_disk_and_module(ctx->disk);
}
+EXPORT_SYMBOL_GPL(blkg_conf_finish);

static int blkcg_print_stat(struct seq_file *sf, void *v)
{
--
2.22.0
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