[PATCH 3.16.y-ckt 104/144] writeback: fix possible underflow in write bandwidth calculation

From: Luis Henriques
Date: Tue Apr 21 2015 - 12:00:26 EST


3.16.7-ckt10 -stable review patch. If anyone has any objections, please let me know.

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From: Tejun Heo <tj@xxxxxxxxxx>

commit c72efb658f7c8b27ca3d0efb5cfd5ded9fcac89e upstream.