ARM: Remove current_mm per-cpu variable
authorCatalin Marinas <catalin.marinas@arm.com>
Mon, 28 Nov 2011 15:59:10 +0000 (15:59 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Tue, 17 Apr 2012 14:29:37 +0000 (15:29 +0100)
commite323969ccda2d69f02e047c08b03faa09215c72a
tree27ed693ec5bb114773f267722bdd0db371a4f5a2
parent7fec1b57b8a925d83c194f995f83d9f8442fd48e
ARM: Remove current_mm per-cpu variable

The current_mm variable was used to store the new mm between the
switch_mm() and switch_to() calls where an IPI to reset the context
could have set the wrong mm. Since the interrupts are disabled during
context switch, there is no need for this variable, current->active_mm
already points to the current mm when interrupts are re-enabled.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Frank Rowand <frank.rowand@am.sony.com>
Tested-by: Marc Zyngier <Marc.Zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm/include/asm/mmu_context.h
arch/arm/mm/context.c