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[dm-devel] Re: [PATCH 02/23] io-controller: Core of the elevator fair queuing



Vivek Goyal wrote:
o This is core of the io scheduler implemented at elevator layer. This is a mix
  of cpu CFS scheduler and CFQ IO scheduler. Some of the bits from CFS have
  to be derived so that we can support hierarchical scheduling. Without
  cgroups or with-in group, we should essentially get same behavior as CFQ.

o This patch only shows non-hierarchical bits. Hierarhical code comes in later
  patches.

o This code is the building base of introducing fair queuing logic in common
  elevator layer so that it can be used by all the four IO schedulers.

Signed-off-by: Fabio Checconi <fabio gandalf sssup it>
Signed-off-by: Paolo Valente <paolo valente unimore it>
Signed-off-by: Nauman Rafique <nauman google com>
Signed-off-by: Vivek Goyal <vgoyal redhat com>

Acked-by: Rik van Riel <riel redhat com>

--
All rights reversed.


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