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| author |   Jiri Slaby <jirislaby@gmail.com> | 2009-04-08 13:31:58 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-04-08 13:46:00 +0200 |
| commit | fcb2ac5bdfa3a7a04fb9749b916f64400f4c35a8 (patch) | |
| tree | c251c870e6f01dafea5e370898e74968b3cda8c4 /arch/x86/kernel/traps.c | |
| parent | Linux 2.6.30-rc1 (diff) | |
| download | linux-dev-fcb2ac5bdfa3a7a04fb9749b916f64400f4c35a8.tar.xz linux-dev-fcb2ac5bdfa3a7a04fb9749b916f64400f4c35a8.zip | |
x86_32: introduce restore_fpu_checking()
Impact: cleanup, prepare FPU code unificaton
Like on x86_64, return an error from restore_fpu and kill the task
if it fails.
Also rename restore_fpu to restore_fpu_checking which allows ifdefs
to be removed in math_state_restore().
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
LKML-Reference: <1239190320-23952-1-git-send-email-jirislaby@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index a1d288327ff0..d696145855b5 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -839,9 +839,6 @@ asmlinkage void math_state_restore(void) } clts(); /* Allow maths ops (or we recurse) */ -#ifdef CONFIG_X86_32 - restore_fpu(tsk); -#else /* * Paranoid restore. send a SIGSEGV if we fail to restore the state. */ @@ -850,7 +847,7 @@ asmlinkage void math_state_restore(void) force_sig(SIGSEGV, tsk); return; } -#endif + thread->status |= TS_USEDFPU; /* So we fnsave on switch_to() */ tsk->fpu_counter++; } |