Re: [PATCH v3 2/2] slab: __GFP_ZERO is incompatible with a constructor

From: Christopher Lameter
Date: Mon Apr 16 2018 - 11:10:31 EST


On Thu, 12 Apr 2018, Matthew Wilcox wrote:

> __GFP_ZERO requests that the object be initialised to all-zeroes,
> while the purpose of a constructor is to initialise an object to a
> particular pattern. We cannot do both. Add a warning to catch any
> users who mistakenly pass a __GFP_ZERO flag when allocating a slab with
> a constructor.

Acked-by: Christoph Lameter <cl@xxxxxxxxx>