tree 2aa21f5b5a6e03e49cd7af4dbd1b38ec451b09d7
parent 48f170fb7d7db8789ccc23e051af61f62af5f685
author Wu Fengguang <fengguang.wu@intel.com> 1311639157 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1311652631 -0700

writeback: account NR_WRITTEN at IO completion time

NR_WRITTEN is now accounted at block IO enqueue time, which is not very
accurate as to common understanding.  This moves NR_WRITTEN accounting to
the IO completion time and makes it more consistent with BDI_WRITTEN,
which is used for bandwidth estimation.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Michael Rubin <mrubin@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>