tree 760783df743eec940d6f6cb848498580ddde03d8
parent f61388822a6040ff462c5f7260daa0f1017f2db0
author Benjamin Herrenschmidt <benh@kernel.crashing.org> 1141174759 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1141188824 -0800

[PATCH] Add mm->task_size and fix powerpc vdso

This patch adds mm->task_size to keep track of the task size of a given mm
and uses that to fix the powerpc vdso so that it uses the mm task size to
decide what pages to fault in instead of the current thread flags (which
broke when ptracing).

(akpm: I expect that mm_struct.task_size will become the way in which we
finally sort out the confusion between 32-bit processes and 32-bit mm's.  It
may need tweaks, but at this stage this patch is powerpc-only.)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>