From: Denys Vlasenko <dvlasenk@redhat.com>
Date: Wed, 25 Mar 2015 20:14:28 +0000 (+0100)
Subject: x86/irq/tracing: Do not save callee-preserved registers around lockdep_sys_exit_thunk
X-Git-Tag: omap-for-v4.1/fixes-rc1~195^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa6d9a128b861fe7e9dc37bcc37179837674b739;p=pandora-kernel.git

x86/irq/tracing: Do not save callee-preserved registers around lockdep_sys_exit_thunk

Internally, lockdep_sys_exit_thunk saves callee-clobbered
registers, and calls a C function, lockdep_sys_exit. Thus,
callee-preserved registers won't be mangled, there is no need to
save them.

Patch was run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1427314468-12763-4-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

Reading git-diff-tree failed