Re: [PATCHv2 1/9] staging: zsmalloc: add gfp flags to zs_create_pool

From: Rik van Riel
Date: Fri Jan 25 2013 - 16:27:21 EST


On 01/07/2013 03:24 PM, Seth Jennings wrote:
zs_create_pool() currently takes a gfp flags argument
that is used when growing the memory pool. However
it is not used in allocating the metadata for the pool
itself. That is currently hardcoded to GFP_KERNEL.

zswap calls zs_create_pool() at swapon time which is done
in atomic context, resulting in a "might sleep" warning.

This patch changes the meaning of the flags argument in
zs_create_pool() to mean the flags for the metadata allocation,
and adds a flags argument to zs_malloc that will be used for
memory pool growth if required.

Signed-off-by: Seth Jennings <sjenning@xxxxxxxxxxxxxxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

--
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/