From: Andy Lutomirski Date: Tue, 23 Sep 2014 17:50:55 +0000 (-0700) Subject: x86/vdso: Make the PER_CPU segment 32 bits X-Git-Tag: omap-for-v3.19/fixes-rc1~152^2~9 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=287e013108a104e459e675432cf20087feab2b67;p=pandora-kernel.git x86/vdso: Make the PER_CPU segment 32 bits IMO users ought not to be able to use 16-bit segments without using modify_ldt. Fortunately, it's impossible to break espfix64 by loading the PER_CPU segment into SS because it's PER_CPU is marked read-only and SS cannot contain an RO segment, but marking PER_CPU as 32-bit is less fragile. Signed-off-by: Andy Lutomirski Link: http://lkml.kernel.org/r/179f490d659307873eefd09206bebd417e2ab5ad.1411494540.git.luto@amacapital.net Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed