From: Borislav Petkov <bp@suse.de>
Date: Mon, 16 Mar 2015 09:21:55 +0000 (+0100)
Subject: x86/fpu: Rename drop_init_fpu() to fpu_reset_state()
X-Git-Tag: omap-for-v4.1/fixes-rc1~189^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b85e67d1483c72b77d1bdc265aa8ba91590794c1;p=pandora-kernel.git

x86/fpu: Rename drop_init_fpu() to fpu_reset_state()

Call it what it does and in accordance with the context where it is
used: we reset the FPU state either because we were unable to restore it
from the one saved in the task or because we simply want to reset it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 2d4adff428ac..da5e96756570 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -406,7 +406,11 @@ static inline void restore_init_xstate(void)
 		fxrstor_checking(&init_xstate_buf->i387);
 }
 
-static inline void drop_init_fpu(struct task_struct *tsk)
+/*
+ * Reset the FPU state in the eager case and drop it in the lazy case (later use
+ * will reinit it).
+ */
+static inline void fpu_reset_state(struct task_struct *tsk)
 {
 	if (!use_eager_fpu())
 		drop_fpu(tsk);
@@ -480,7 +484,7 @@ static inline void switch_fpu_finish(struct task_struct *new, fpu_switch_t fpu)
 {
 	if (fpu.preload) {
 		if (unlikely(restore_fpu_checking(new)))
-			drop_init_fpu(new);
+			fpu_reset_state(new);
 	}
 }
 
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