Christopher Haster 53a6e04712 Changed block_cycles disable from 0 to -1 ...

As it is now, block_cycles = 0 disables wear leveling. This was a
mistake as 0 is the "default" value for several other config options.
It's even worse when migrating from v1 as it's easy to miss the addition
of block_cycles and end up with a filesystem that is not actually
wear-leveling.

Clearly, block_cycles = 0 should do anything but disable wear-leveling.

Here, I've changed block_cycles = 0 to assert. Forcing users to set a
value for block_cycles (500 is suggested). block_cycles can be set to -1
to explicitly disable wear leveling if desired.

2019-07-17 17:05:20 -05:00

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