add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/microblaze/kernel/process.c
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@@ -18,7 +18,6 @@
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 #include <linux/tick.h>
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 #include <linux/bitops.h>
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 #include <linux/ptrace.h>
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-#include <asm/pgalloc.h>
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 #include <linux/uaccess.h> /* for USER_DS macros */
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 #include <asm/cacheflush.h>
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@@ -54,13 +53,13 @@
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 {
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 }
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-int copy_thread(unsigned long clone_flags, unsigned long usp,
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-		unsigned long arg, struct task_struct *p)
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+int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
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+		struct task_struct *p, unsigned long tls)
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 {
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 	struct pt_regs *childregs = task_pt_regs(p);
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 	struct thread_info *ti = task_thread_info(p);
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-	if (unlikely(p->flags & PF_KTHREAD)) {
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+	if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
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 		/* if we're creating a new kernel thread then just zeroing all
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 		 * the registers. That's OK for a brand new thread.*/
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 		memset(childregs, 0, sizeof(struct pt_regs));
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@@ -114,7 +113,7 @@
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 	 *  which contains TLS area
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 	 */
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 	if (clone_flags & CLONE_SETTLS)
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-		childregs->r21 = childregs->r10;
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+		childregs->r21 = tls;
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 	return 0;
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 }
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@@ -150,5 +149,5 @@
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 void arch_cpu_idle(void)
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 {
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-       local_irq_enable();
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+       raw_local_irq_enable();
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 }