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authorIngo Molnar <mingo@kernel.org>2015-04-23 13:46:20 +0300
committerIngo Molnar <mingo@kernel.org>2015-05-19 16:47:24 +0300
commit4c1384100ebf51651d02430a7f70661ef1ef06ac (patch)
treea1c942ae45d43be4f34cf463fb33c54c781d7e3d /arch/x86/kernel/signal.c
parent4540d3faa7c3fca6a6125448861de0e2e485658b (diff)
downloadlinux-4c1384100ebf51651d02430a7f70661ef1ef06ac.tar.xz
x86/fpu: Open code PF_USED_MATH usages
PF_USED_MATH is used directly, but also in a handful of helper inlines. To ease the elimination of PF_USED_MATH, convert all inline helpers to open-coded PF_USED_MATH usage. Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/signal.c')
-rw-r--r--arch/x86/kernel/signal.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 35f867aa597e..8e2529ebb8c6 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -217,7 +217,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
}
}
- if (used_math()) {
+ if (current->flags & PF_USED_MATH) {
sp = alloc_mathframe(sp, config_enabled(CONFIG_X86_32),
&buf_fx, &math_size);
*fpstate = (void __user *)sp;
@@ -233,7 +233,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
return (void __user *)-1L;
/* save i387 and extended state */
- if (used_math() &&
+ if ((current->flags & PF_USED_MATH) &&
save_xstate_sig(*fpstate, (void __user *)buf_fx, math_size) < 0)
return (void __user *)-1L;
@@ -664,7 +664,7 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
/*
* Ensure the signal handler starts with the new fpu state.
*/
- if (used_math())
+ if (current->flags & PF_USED_MATH)
fpu_reset_state(current);
}
signal_setup_done(failed, ksig, stepping);