From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 21 Apr 2011 01:46:35 +0000 (+0930)
Subject: tdb2: handle non-transaction-page-aligned sizes in recovery.
X-Git-Url: http://git.ozlabs.org/?a=commitdiff_plain;h=ba7740e689b5791d79b95d2c5345870f9c29fb71;hp=ba7740e689b5791d79b95d2c5345870f9c29fb71;p=ccan

tdb2: handle non-transaction-page-aligned sizes in recovery.

tdb1 always makes the tdb a multiple of the transaction page size,
tdb2 doesn't.  This means that if a transaction hits the exact end of
the file, we might need to save off a partial page.

So that we don't have to rewrite tdb_recovery_size() too, we simply do
a short read and memset the unused section to 0 (to keep valgrind
happy).
---