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DateFri, 10 Feb 2006 08:25:23 +0100
FromJens Axboe <>
SubjectRe: [PATCH] block: kill not-so-popular simple flag testing macros
On Thu, Feb 09 2006, Jeff Garzik wrote:
> Tejun Heo wrote:
> >The code he was talking about looks like.
> >
> >if (rq->flags & (REQ_SOFTBARRIER | REQ_HARDBARRIER) {
> 
> 
> Yes, I certainly agree you don't want to test the same variable multiple 
> times, if you are just testing bits in the same variable.

Very few of the flags are usually tested together, so we could just fix
this particular instance. So blk_softbarrier_rq() and
blk_hardbarrier_rq(), combined tested with blk_barrier_rq().

-- 
Jens Axboe

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