add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/sh/kernel/ftrace.c
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@@ -119,7 +119,7 @@
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 	 * But if one were to fail, then they all should, and if one were
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 	 * to succeed, then they all should.
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 	 */
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-	mod_code_status = probe_kernel_write(mod_code_ip, mod_code_newcode,
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+	mod_code_status = copy_to_kernel_nofault(mod_code_ip, mod_code_newcode,
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 					     MCOUNT_INSN_SIZE);
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 	/* if we fail, then kill any new writers */
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@@ -203,7 +203,7 @@
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 	 */
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 	/* read the text we want to modify */
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-	if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
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+	if (copy_from_kernel_nofault(replaced, (void *)ip, MCOUNT_INSN_SIZE))
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 		return -EFAULT;
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 	/* Make sure it is what we expect it to be */
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@@ -268,7 +268,7 @@
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 {
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 	unsigned char code[MCOUNT_INSN_SIZE];
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-	if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE))
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+	if (copy_from_kernel_nofault(code, (void *)ip, MCOUNT_INSN_SIZE))
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 		return -EFAULT;
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 	if (old_addr != __raw_readl((unsigned long *)code))