x86/fpu: Don't create a kmem fpu-state cache if it already exists

We were accidentally creating the same kmem cache for every CPU that called fpu_cache_init. Oopsie. Signed-off-by: Pedro Falcato <[email protected]>
heatd · May 12, 2024 · 020772f · 020772f
1 parent bde2a0b
commit 020772f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/kernel/arch/x86_64/fpu.cpp b/kernel/arch/x86_64/fpu.cpp
@@ -123,6 +123,8 @@ static slab_cache *fpu_cache = nullptr;
  */
 void fpu_init_cache()
 {
+    if (fpu_cache)
+        return;
     fpu_cache = kmem_cache_create("fpu-state", fpu_area_size, fpu_area_alignment, 0, nullptr);
     if (!fpu_cache)
         panic("Out of memory allocating fpu state");