Re: [PATCH v2 2/2] block: share request flush fields with elevator_private

(off-list ancestor, not in this archive)
[KNOWN BUGGY RFC PATCH 4/3] block: skip elevator initialization for flush requests · Mike Snitzer <hidden> · 2011-01-25
Re: [KNOWN BUGGY RFC PATCH 4/3] block: skip elevator initialization for flush requests · Mike Snitzer <hidden> · 2011-01-25
Re: [RFC PATCH 4/3] block: skip elevator initialization for flush requests -- was never BUGGY relative to upstream · Mike Snitzer <hidden> · 2011-01-26
Re: [KNOWN BUGGY RFC PATCH 4/3] block: skip elevator initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-01-26
Re: [KNOWN BUGGY RFC PATCH 4/3] block: skip elevator initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-01-26
Re: [RFC PATCH 4/3] block: skip elevator initialization for flush requests · Mike Snitzer <hidden> · 2011-02-01
Re: [RFC PATCH 4/3] block: skip elevator initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-02-01
[PATCH v2 2/2] block: share request flush fields with elevator_private · Mike Snitzer <hidden> · 2011-02-01
Re: [PATCH v2 2/2] block: share request flush fields with elevator_private · Vivek Goyal <vgoyal@redhat.com> · 2011-02-02
Re: [PATCH v2 2/2] block: share request flush fields with elevator_private · Tejun Heo <tj@kernel.org> · 2011-02-03
Re: [PATCH v2 2/2] block: share request flush fields with elevator_private · Jens Axboe <hidden> · 2011-02-11
[PATCH v2 1/2] block: skip elevator initialization for flush requests · Mike Snitzer <hidden> · 2011-02-01
Re: [PATCH v2 1/2] block: skip elevator initialization for flush requests · Vivek Goyal <vgoyal@redhat.com> · 2011-02-02
Re: [PATCH v2 1/2] block: skip elevator initialization for flush requests · Mike Snitzer <hidden> · 2011-02-02
[PATCH v3 1/2] block: skip elevator data initialization for flush requests · Mike Snitzer <hidden> · 2011-02-02
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-02-03
[PATCH v4 1/2] block: skip elevator data initialization for flush requests · Mike Snitzer <hidden> · 2011-02-03
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Jens Axboe <hidden> · 2011-02-03
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-02-03
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Vivek Goyal <vgoyal@redhat.com> · 2011-02-04
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Tejun Heo <tj@kernel.org> · 2011-02-04
[PATCH v5 1/2] block: skip elevator data initialization for flush requests · Mike Snitzer <hidden> · 2011-02-04
Re: [PATCH v3 1/2] block: skip elevator data initialization for flush requests · Mike Snitzer <hidden> · 2011-02-03

From: Jens Axboe <hidden>
Date: 2011-02-11 10:07:38
Also in: lkml

On 2011-02-01 23:46, Mike Snitzer wrote:

Flush requests are never put on the IO scheduler.  Convert request
structure's elevator_private* into an array and have the flush fields
share a union with it.

Reclaim the space lost in 'struct request' by moving 'completion_data'
back in the union with 'rb_node'.

Thanks Mike, I've merged this one and v5 1/2 as well.

-- 
Jens Axboe

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