Re: [PATCH 2.6.25.10 1/2] libata: fix locking for kmap_atomic

[Alan Cox]

> Sent patch was for:
> 
> [   16.787021] BUG: sleeping function called from invalid context IRQ-14(5730) 
> at arch/x86/mm/highmem_32.c:8

Fine - but the right fix is still to apply the patches that use a bounce
buffer, otherwise you might paper over the warning but you'll trash rt
performance. It needs fixing anyway especially with Tejun's changes to
the ATAPI logic to use PIO more often

Alan
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