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Message-ID: <20121228231818.GL3062@mtj.dyndns.org>
Date: Fri, 28 Dec 2012 18:18:18 -0500
From: Tejun Heo <tj@...nel.org>
To: lizefan@...wei.com, axboe@...nel.dk, vgoyal@...hat.com
Cc: containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
linux-kernel@...r.kernel.org, ctalbott@...gle.com, rni@...gle.com,
Fengguang Wu <fengguang.wu@...el.com>
Subject: [PATCH 18.5/24] blkcg: export __blkg_prfill_rwstat() take#2
Hierarchical stats for cfq-iosched will need __blkg_prfill_rwstat().
Export it.
Signed-off-by: Tejun Heo <tj@...nel.org>
Reported-by: Fengguang Wu <fengguang.wu@...el.com>
---
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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