diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-04-09 23:11:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-04-14 08:18:29 +0200 |
| commit | e3bfa3859936da3edd1e16d0b74fdaaa19bb5087 (patch) | |
| tree | ae51c0a0d3498575d4cf337cc8e061f3370b1a8b /arch/x86/kernel/fpu/init.c | |
| parent | 77fbccede633a5565cae084348b5459f6849086d (diff) | |
x86/fpu: Convert task_struct::thread.fpu accesses to use x86_task_fpu()
This will make the removal of the task_struct::thread.fpu array
easier.
No change in functionality - code generated before and after this
commit is identical on x86-defconfig:
kepler:~/tip> diff -up vmlinux.before.asm vmlinux.after.asm
kepler:~/tip>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Chang S. Bae <chang.seok.bae@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20250409211127.3544993-3-mingo@kernel.org
Diffstat (limited to 'arch/x86/kernel/fpu/init.c')
| -rw-r--r-- | arch/x86/kernel/fpu/init.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index 998a08f17e33..ad5cb2943d37 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -38,7 +38,7 @@ static void fpu__init_cpu_generic(void) /* Flush out any pending x87 state: */ #ifdef CONFIG_MATH_EMULATION if (!boot_cpu_has(X86_FEATURE_FPU)) - fpstate_init_soft(¤t->thread.fpu.fpstate->regs.soft); + fpstate_init_soft(&x86_task_fpu(current)->fpstate->regs.soft); else #endif asm volatile ("fninit"); @@ -154,7 +154,7 @@ static void __init fpu__init_task_struct_size(void) * Subtract off the static size of the register state. * It potentially has a bunch of padding. */ - task_size -= sizeof(current->thread.fpu.__fpstate.regs); + task_size -= sizeof(union fpregs_state); /* * Add back the dynamically-calculated register state @@ -204,7 +204,7 @@ static void __init fpu__init_system_xstate_size_legacy(void) fpu_kernel_cfg.default_size = size; fpu_user_cfg.max_size = size; fpu_user_cfg.default_size = size; - fpstate_reset(¤t->thread.fpu); + fpstate_reset(x86_task_fpu(current)); } /* @@ -213,7 +213,7 @@ static void __init fpu__init_system_xstate_size_legacy(void) */ void __init fpu__init_system(void) { - fpstate_reset(¤t->thread.fpu); + fpstate_reset(x86_task_fpu(current)); fpu__init_system_early_generic(); /* |