On Wed, Apr 22, 2015 at 09:41:45AM +0200, Thomas Graf wrote:
> When rhashtable_insert_rehash() fails with ENOMEM, this indicates that
> we can't allocate the necessary memory in the current context but the
> limits as set by the user would still allow to grow.
>
> Thus attempt an async resize in the background where we can allocate
> using GFP_KERNEL which is more likely to succeed. The insertion itself
> will still fail to indicate pressure.
>
> This fixes a bug where the table would never continue growing once the
> utilization is above 100%.
>
> Fixes: ccd57b1bd324 ("rhashtable: Add immediate rehash during insertion")
> Signed-off-by: Thomas Graf <tg...@suug.ch>
Acked-by: Herbert Xu <herb...@gondor.apana.org.au>
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Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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