2015-02-08 0:18 GMT+09:00 Akinobu Mita :
> 2015-02-08 0:03 GMT+09:00 Akinobu Mita :
>> This introduces a module parameter to detect zero writes and not to
>> allocate memory. Read requests for unallocated (unwritten) region
>> end up by reading zero. So this can save zeroed memory consumption
>>
2015-02-08 0:03 GMT+09:00 Akinobu Mita :
> This introduces a module parameter to detect zero writes and not to
> allocate memory. Read requests for unallocated (unwritten) region
> end up by reading zero. So this can save zeroed memory consumption
> with extra overhead for the detection.
>
> This
This introduces a module parameter to detect zero writes and not to
allocate memory. Read requests for unallocated (unwritten) region
end up by reading zero. So this can save zeroed memory consumption
with extra overhead for the detection.
This feature is useful for testing filesystems and user
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