Re: Q: semaphore and kmalloc(GFP_KERNEL)?

[Tetsuo Handa]

KOSAKI Motohiro wrote:
> > Can the kernel detect that we need to let kmalloc() fail and
> > wake up the writer process so that the writer process releases
> > the rw_semaphore and reader processes can continue?
> 
> it can't. Plus it shouldn't.
> some caller don't want kmalloc() failure.

Thanks.
Then, should I move kmalloc(GFP_KERNEL) to outside the lock whenever possible?
(I worry some lock held by the caller interferes kmalloc(GFP_KERNEL).)
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