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SubjectRe: [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 <>
> Signed-off-by: Paolo Valente <>
> Signed-off-by: Nauman Rafique <>
> Signed-off-by: Vivek Goyal <>

Acked-by: Rik van Riel <>

All rights reversed.

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