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| author | Ingo Molnar <mingo@kernel.org> | 2015-04-27 07:18:17 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:51 +0200 |
| commit | c4d72e2db3a36bf560b506df8a3490f140aeae26 (patch) | |
| tree | 934cc8c80417fb8a5845a3d5f5da1dc4fc819278 /arch/x86/math-emu | |
| parent | 0ee6a5172573aea06ef41f4e48737dcfab0099bb (diff) | |
| download | linux-c4d72e2db3a36bf560b506df8a3490f140aeae26.tar.gz linux-c4d72e2db3a36bf560b506df8a3490f140aeae26.tar.bz2 linux-c4d72e2db3a36bf560b506df8a3490f140aeae26.zip | |
x86/fpu: Simplify fpstate_init_curr() usage
Now that fpstate_init_curr() is not doing implicit allocations
anymore, almost all uses of it involve a very simple pattern:
if (!fpu->fpstate_active)
fpstate_init_curr(fpu);
which is basically activating the FPU fpstate if it was not active
before.
So propagate the check into the function itself, and rename the
function according to its new purpose:
fpu__activate_curr(fpu);
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/math-emu')
| -rw-r--r-- | arch/x86/math-emu/fpu_entry.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c index 4c6ab791d0e5..5b850514eb68 100644 --- a/arch/x86/math-emu/fpu_entry.c +++ b/arch/x86/math-emu/fpu_entry.c @@ -149,8 +149,7 @@ void math_emulate(struct math_emu_info *info) struct desc_struct code_descriptor; struct fpu *fpu = ¤t->thread.fpu; - if (!fpu->fpstate_active) - fpstate_init_curr(fpu); + fpu__activate_curr(fpu); #ifdef RE_ENTRANT_CHECKING if (emulating) { |