From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 15 Nov 2010 07:24:15 +0000 (+1030)
Subject: tdb2: fix tdb_chainlock
X-Git-Url: https://git.ozlabs.org/?a=commitdiff_plain;h=c5e3f07a30056cb7c3c380bf690f80815ca4b6b1;hp=c5e3f07a30056cb7c3c380bf690f80815ca4b6b1;p=ccan-lca-2011.git

tdb2: fix tdb_chainlock

We can't enlarge the lock without risking deadlock, so tdb_chainlock() can't
simply grab a one-byte lock; it needs to grab the lock we'd need to protect
the hash.

In theory, tdb_chainlock_read() could use a one-byte lock though.
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