Fix flag#528

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yvxiang wants to merge 8 commits intobaidu:masterfrom

yvxiang:fix_flag

Commits on Oct 24, 2016

Add membership variable
yvxiang
committed
Remove volatile
yvxiang
committed
Merge branch 'master' into fix_flag
Yang Ce
authored

Commits on Oct 25, 2016

Merge branch 'master' into fix_flag
Yang Ce
authored
Use NameSerfverParams
yvxiang
committed
Merge branch 'fix_flag' of github.com:yvxiang/dfs into fix_flag
yvxiang
committed
Merge branch 'upstream' into fix_flag
yvxiang
committed
Remove useless code
yvxiang
committed