From: Slava Pestov <sp@daterainc.com>
Date: Tue, 22 Apr 2014 01:23:12 +0000 (-0700)
Subject: bcache: wait for buckets when allocating new btree root
X-Git-Tag: cleanup-for-v3.18~33^2^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5aa4a3157b55bdca18dd2a9d9f43314470b6d32;p=pandora-kernel.git

bcache: wait for buckets when allocating new btree root

Tested:
- sometimes bcache_tier test would hang on startup with a failure
  to allocate the btree root -- no longer seeing this

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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