On 09/06/2017 09:08 AM, Johannes Thumshirn wrote: > On Wed, Sep 06, 2017 at 05:01:01PM +0200, Javier González wrote: >> Check for failed mempool allocations and act accordingly. > > Are you sure it is needed? Quoting from mempool_alloc()s Documentation: > "[...] Note that due to preallocation, this function *never* fails when called > from process contexts. (it might fail if called from an IRQ context.) [...]" It's not needed, mempool() will never fail if __GFP_WAIT is set in the mask. The use case here is GFP_KERNEL, which does include __GFP_WAIT. -- Jens Axboe
