tree 0ba80acf1666a3fe82a3cb09ae0052b58c1d2af1
parent 9bebff6ca5871e07b665cdaf71028ea21eb0bf0e
author Jeff Dike <jdike@addtoit.com> 1173328886 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1173368302 -0800

[PATCH] uml: arch_prctl should set thread fs

In my previous x86_64 thread fix, I forgot to initialize thread.arch.fs in
arch_prctl.  A process calling arch_prctl to set %fs would lose it on the
next context switch.

It also turns out that you can switch to a process which is in the process
of exiting and which has lost its mm.  In this case, it's worse than
useless to try to call arch_prctl on the host process.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>