From: Chris Metcalf <cmetcalf@tilera.com>
Date: Tue, 23 Oct 2012 17:30:54 +0000 (-0400)
Subject: arch/tile: eliminate pt_regs trampolines for syscalls
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~47^2~43^2~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b14e4198c729b748a7f6d22059e6a101d2b241a;p=pandora-kernel.git

arch/tile: eliminate pt_regs trampolines for syscalls

Using the new current_pt_regs() model, we can remove some trampolines
from assembly code and call directly to the C syscall implementations.
rt_sigreturn() and clone() still need some assembly wrapping, but no
longer are passed a pt_regs pointer.  sigaltstack() and the
tilepro-specific cmpxchg_badaddr() syscalls are now just straight C.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
---

Reading git-diff-tree failed