On 22 Mar 2018, at 23:54, Andrew Morton [off-list ref] =

wrote:

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=20
Please add changelogs.  An explanation of what a "limit on memory
region random shift" is would be nice ;) Why does it exist, why are we
doing this, etc.  Surely there's something to be said - at present =

this

is just a lump of random code?
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=20
=20

Sorry, my bad. The main idea of this limit is to decrease possible =
memory=20
fragmentation. This is not so big problem on 64bit process, but really =
big for=20
32 bit processes since may cause failure memory allocation. To control =
memory=20
fragmentation and protect 32 bit systems (or architectures) this limit =
was=20
introduce by this patch. It could be also moved to CONFIG_ as well.=