Calle Wilund dc136a6a1c commitlog: Fix reserve counter overflow ...

Fixes #482

See code comment. Reserve segment allocation count sum can temporarily
overflow due to continuation delay/reordering, if we manage to reach the
on_timer code before finally clauses from previous reserve allocation
invocation has processed. However, since these are benign overflows
(just indicating even more that we don't need to do anything right now)
simply capping the count should be fine.
Avoids assert in boost irange.

Message-Id: <1456740679-4537-1-git-send-email-calle@scylladb.com>

2016-02-29 14:56:24 +02:00

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