x86/fpu: Rename fpu_alloc() to fpstate_alloc()

[sfrench/cifs-2.6.git] / arch / x86 / kernel / i387.c

diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 05fcc90087b04715bf2fae0095e470daf880766c..5f2feb63b72a310f458dd6ffa9e630df448930f2 100644 (file)
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -246,17 +246,21 @@ void fpu_finit(struct fpu *fpu)
 }
 EXPORT_SYMBOL_GPL(fpu_finit);
 
-int fpu_alloc(struct fpu *fpu)
+int fpstate_alloc(struct fpu *fpu)
 {
        if (fpu->state)
                return 0;
+
        fpu->state = kmem_cache_alloc(task_xstate_cachep, GFP_KERNEL);
        if (!fpu->state)
                return -ENOMEM;
+
+       /* The CPU requires the FPU state to be aligned to 16 byte boundaries: */
        WARN_ON((unsigned long)fpu->state & 15);
+
        return 0;
 }
-EXPORT_SYMBOL_GPL(fpu_alloc);
+EXPORT_SYMBOL_GPL(fpstate_alloc);
 
 /*
  * Allocate the backing store for the current task's FPU registers
@@ -276,7 +280,7 @@ int fpstate_alloc_init(struct task_struct *curr)
        /*
         * Memory allocation at the first usage of the FPU and other state.
         */
-       ret = fpu_alloc(&curr->thread.fpu);
+       ret = fpstate_alloc(&curr->thread.fpu);
        if (ret)
                return ret;
 
@@ -310,7 +314,7 @@ static int fpu__unlazy_stopped(struct task_struct *child)
        /*
         * Memory allocation at the first usage of the FPU and other state.
         */
-       ret = fpu_alloc(&child->thread.fpu);
+       ret = fpstate_alloc(&child->thread.fpu);
        if (ret)
                return ret;