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| author | Wu Fengguang <fengguang.wu@intel.com> | 2011-07-25 17:12:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 20:57:11 -0700 |
| commit | 99b12e3d882bc7ebdfe0de381dff3b16d21c38f7 (patch) | |
| tree | 2aa21f5b5a6e03e49cd7af4dbd1b38ec451b09d7 /Documentation/ldm.txt | |
| parent | 48f170fb7d7db8789ccc23e051af61f62af5f685 (diff) | |
| download | blackbird-op-linux-99b12e3d882bc7ebdfe0de381dff3b16d21c38f7.tar.gz blackbird-op-linux-99b12e3d882bc7ebdfe0de381dff3b16d21c38f7.zip | |
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>
Diffstat (limited to 'Documentation/ldm.txt')
0 files changed, 0 insertions, 0 deletions
