Re: [PATCH] libata-core: Fix simplex handling

[Jeff Garzik]

Alan wrote:
> The initial simplex handling code is fooled if you suspend and resume.
> This also causes problems with some single channel controllers which
> claim to be simplex.
>
> The fix is fairly simple, instead of keeping a flag to remember if we
> gave away the simplex channel we remember the actual owner. As the owner
> is always part of the host_set we don't even need a refcount.
>
> Knowing the owner also means we can reassign simplex DMA channels in
> future hotplug code etc if we need to
>
> Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
> (and a signed-off for the patch I sent before while I remember)

applied


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