[PATCH 18.5/24] blkcg: export __blkg_prfill_rwstat() take#2

From: Tejun Heo
Date: Fri Dec 28 2012 - 18:18:17 EST


Hierarchical stats for cfq-iosched will need __blkg_prfill_rwstat().
Export it.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
Fengguang's build test discovered that cfq now uses
__blkg_prfill_rwstat() which isn't exported leading to build failures
when cfq is built as a module. Export it. This doesn't affect
!module builds. Git branch updated accordingly.

Thanks.

block/blk-cgroup.c | 1 +
1 file changed, 1 insertion(+)

--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -552,6 +552,7 @@ u64 __blkg_prfill_rwstat(struct seq_file
seq_printf(sf, "%s Total %llu\n", dname, (unsigned long long)v);
return v;
}
+EXPORT_SYMBOL_GPL(__blkg_prfill_rwstat);

/**
* blkg_prfill_stat - prfill callback for blkg_stat
--
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