diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-04-22 11:52:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:17 +0200 |
| commit | 81683cc8277e79decff4d0cf82ae0e17d2fe465f (patch) | |
| tree | 6b5d271fe62cd0016becc0129db4edcc19fc580a /arch/x86/include/asm/i387.h | |
| parent | 11ad19277e025f914518bc2943a240cdd37cf844 (diff) | |
x86/fpu: Factor out fpu__flush_thread() from flush_thread()
flush_thread() open codes a lot of FPU internals - create a separate
function for it in fpu/core.c.
Turns out that this does not hurt performance:
text data bss dec hex filename
11843039 1884440 1130496 14857975 e2b6f7 vmlinux.before
11843039 1884440 1130496 14857975 e2b6f7 vmlinux.after
and since this is a slowpath clarity comes first anyway.
We can reconsider inlining decisions after the FPU code has been cleaned up.
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/include/asm/i387.h')
| -rw-r--r-- | arch/x86/include/asm/i387.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h index 6552a16e0e38..d6fc84440b73 100644 --- a/arch/x86/include/asm/i387.h +++ b/arch/x86/include/asm/i387.h @@ -20,6 +20,7 @@ struct user_i387_struct; extern int fpstate_alloc_init(struct task_struct *curr); extern void fpstate_init(struct fpu *fpu); +extern void fpu__flush_thread(struct task_struct *tsk); extern int dump_fpu(struct pt_regs *, struct user_i387_struct *); extern void math_state_restore(void); |