DEFINE_PER_CPU(bool, fpsimd_context_busy);
EXPORT_PER_CPU_SYMBOL(fpsimd_context_busy);
+static void fpsimd_bind_task_to_cpu(void);
+
static void __get_cpu_fpsimd_context(void)
{
bool busy = __this_cpu_xchg(fpsimd_context_busy, true);
/* This is a small allocation (maximum ~8KB) and Should Not Fail. */
task->thread.sve_state =
kzalloc(sve_state_size(task), GFP_KERNEL);
-
- /*
- * If future SVE revisions can have larger vectors though,
- * this may cease to be true:
- */
- BUG_ON(!task->thread.sve_state);
}
}
sve_alloc(current);
+ if (!current->thread.sve_state) {
+ force_sig(SIGKILL);
+ return;
+ }
get_cpu_fpsimd_context();
* The caller must have ownership of the cpu FPSIMD context before calling
* this function.
*/
-void fpsimd_bind_task_to_cpu(void)
+static void fpsimd_bind_task_to_cpu(void)
{
struct fpsimd_last_state_struct *last =
this_cpu_ptr(&fpsimd_last_state);