lkml.org 
[lkml]   [2015]   [Apr]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH] mm/hugetlb: reduce arch dependent code about huge_pmd_unshare
Date
> Memory fails me.  Why do some architectures (arm, arm64, x86_64) want
> huge_pmd_[un]share() while other architectures (ia64, tile, mips,
> powerpc, metag, sh, s390) do not?

Potentially laziness/ignorance-of-feature? It looks like this feature started on x86_64 and then spread
to arm*.

Huge pages are weird on ia64 in that they have to be in a specific range of virtual addresses (region 4).
But I don't see why that would prevent sharing pmd's.

-Tony



\
 
 \ /
  Last update: 2015-04-24 00:41    [W:0.648 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site