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author	Sage Weil <sage@newdream.net>
	Thu, 3 Dec 2009 23:16:08 +0000 (15:16 -0800)
committer	Sage Weil <sage@newdream.net>
	Fri, 4 Dec 2009 00:27:06 +0000 (16:27 -0800)
commit	dc2435118762bb4531407641217d055e7962a56a
tree	ac13df055aca5f14611a210f40cbe4491b601357	tree \| snapshot
parent	e71e3619fc2592edf6e7bcc27725e8f5a83eb9ae	commit \| diff

mds: avoid scatter writebehind from predirty_*

predirty_journal_parents does wrlock_start with
nowait=true. Make sure we don't then simple_lock if
lock->is_updated(), as that will call scatter_writebehind,
which will barf if a log event is currently open (which
it is in this case).

src/mds/Locker.cc

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