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由 Dan Ehrenberg 提交于
Previously, if a stripe width was provided, then it would be used as the preallocation granularity, with no santiy checking and no way to override this. Now, mb_prealloc_size defaults to the smallest multiple of stripe size that is greater than or equal to the old default mb_prealloc_size, and this can be overridden with the sysfs interface. Signed-off-by: NDan Ehrenberg <dehrenberg@google.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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