This code was historically in process.c, now we have FPU core internals in
fpu/core.c instead - move it there.
Reviewed-by: Borislav Petkov <b...@alien8.de>
Cc: Andy Lutomirski <l...@amacapital.net>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Fenghua Yu <fenghua...@intel.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Oleg Nesterov <o...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
arch/x86/include/asm/fpu-internal.h | 2 ++
arch/x86/kernel/fpu/core.c | 15 +++++++++++++++
arch/x86/kernel/process.c | 9 +--------
3 files changed, 18 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/fpu-internal.h
b/arch/x86/include/asm/fpu-internal.h
index 95e04cb1ed2f..f41170c6d376 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -564,6 +564,8 @@ static inline unsigned short get_fpu_mxcsr(struct
task_struct *tsk)
}
}
+extern void fpstate_cache_init(void);
+
extern int fpstate_alloc(struct fpu *fpu);
static inline void fpstate_free(struct fpu *fpu)
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index 1896344dd8e6..9dc4bb3f6f5a 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -147,6 +147,21 @@ void fpstate_init(struct fpu *fpu)
}
EXPORT_SYMBOL_GPL(fpstate_init);
+/*
+ * FPU state allocation:
+ */
+struct kmem_cache *task_xstate_cachep;
+EXPORT_SYMBOL_GPL(task_xstate_cachep);
+
+void fpstate_cache_init(void)
+{
+ task_xstate_cachep =
+ kmem_cache_create("task_xstate", xstate_size,
+ __alignof__(union thread_xstate),
+ SLAB_PANIC | SLAB_NOTRACK, NULL);
+ setup_xstate_comp();
+}
+
int fpstate_alloc(struct fpu *fpu)
{
if (fpu->state)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 0a4c35c3fb2f..fda613eeeebd 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -75,9 +75,6 @@ void idle_notifier_unregister(struct notifier_block *n)
EXPORT_SYMBOL_GPL(idle_notifier_unregister);
#endif
-struct kmem_cache *task_xstate_cachep;
-EXPORT_SYMBOL_GPL(task_xstate_cachep);
-
/*
* this gets called so that we can store lazy state into memory and copy the
* current task into the new thread.
@@ -106,11 +103,7 @@ void arch_release_task_struct(struct task_struct *tsk)
void arch_task_cache_init(void)
{
- task_xstate_cachep =
- kmem_cache_create("task_xstate", xstate_size,
- __alignof__(union thread_xstate),
- SLAB_PANIC | SLAB_NOTRACK, NULL);
- setup_xstate_comp();
+ fpstate_cache_init();
}
/*
--
2.1.0
--
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