Re: [PATCH] blk: fix possible queue stall in blk_do_ordered

[Tejun Heo]

Mark Lord wrote:
> Tejun Heo wrote:
>
> > Previously, if a fs request which was being drained failed and got
> > requeued, blk_do_ordered() didn't allow it to be reissued, which
> > causes queue stall.  This patch makes blk_do_ordered() use the
> > sequence of each request to determine whether a request can be issued
> > or not.  This fixes the bug and simplifies code.
>
>
> What kernel(s) is this against?  The patch seems to fail on 2.6.15.
>
> Thanks

It's against v2.6.15-mm2.  It's sort of a follow-up patch for the following.

http://marc.theaimsgroup.com/?l=linux-kernel&m=113707430626490&w=2

--
tejun
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