[PATCH 3.13.y-ckt 36/90] writeback: fix possible underflow in write bandwidth calculation

From: Kamal Mostafa
Date: Tue May 05 2015 - 17:14:05 EST


3.13.11-ckt20 -stable review patch. If anyone has any objections, please let me know.

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From: Tejun Heo <tj@xxxxxxxxxx>

commit c72efb658f7c8b27ca3d0efb5cfd5ded9fcac89e upstream.