diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-04-24 02:13:09 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:29 +0200 |
| commit | db2b1d3ad1cdae9f268d6db54b6127b09933da3d (patch) | |
| tree | 2c85e43528860496631d417ec23e634d3a292029 /arch/x86/kernel/fpu/core.c | |
| parent | c69e098b1f90c0d520c4d5b5bff9f2ede95b13a8 (diff) | |
x86/fpu: Use 'struct fpu' in fpstate_alloc_init()
Migrate this function to pure 'struct fpu' 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/fpu/core.c')
| -rw-r--r-- | arch/x86/kernel/fpu/core.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index a84358575235..183e69dfd4d0 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -263,12 +263,11 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu) * * Can fail. */ -int fpstate_alloc_init(struct task_struct *curr) +int fpstate_alloc_init(struct fpu *fpu) { - struct fpu *fpu = &curr->thread.fpu; int ret; - if (WARN_ON_ONCE(curr != current)) + if (WARN_ON_ONCE(fpu != ¤t->thread.fpu)) return -EINVAL; if (WARN_ON_ONCE(fpu->fpstate_active)) return -EINVAL; @@ -276,11 +275,11 @@ int fpstate_alloc_init(struct task_struct *curr) /* * Memory allocation at the first usage of the FPU and other state. */ - ret = fpstate_alloc(&curr->thread.fpu); + ret = fpstate_alloc(fpu); if (ret) return ret; - fpstate_init(&curr->thread.fpu); + fpstate_init(fpu); /* Safe to do for the current task: */ fpu->fpstate_active = 1; @@ -360,7 +359,7 @@ void fpu__restore(void) /* * does a slab alloc which can sleep */ - if (fpstate_alloc_init(tsk)) { + if (fpstate_alloc_init(fpu)) { /* * ran out of memory! */ @@ -396,7 +395,7 @@ void fpu__flush_thread(struct task_struct *tsk) } else { if (!fpu->fpstate_active) { /* kthread execs. TODO: cleanup this horror. */ - if (WARN_ON(fpstate_alloc_init(tsk))) + if (WARN_ON(fpstate_alloc_init(fpu))) force_sig(SIGKILL, tsk); user_fpu_begin(); } |