x86/alternatives: Rename 'text_poke_finish()' to 'smp_text_poke_batch_finish()'

This name is actively confusing as well, because the simple text_poke*()
APIs use MM-switching based code patching, while text_poke_finish()
is part of the INT3 based text_poke_int3_*() machinery that is an
additional layer of functionality on top of regular text_poke*() functionality.

Rename it to smp_text_poke_batch_finish() to make it clear which layer
it belongs to.

Signed-off-by: Ingo Molnar <[e-mail]>
Cc: Juergen Gross <[e-mail]>
Cc: "H . Peter Anvin" <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/x86/include/asm/text-patching.h

···
 extern void smp_text_poke_single(void *addr, const void *opcode, size_t len, const void *emulate);
 
 extern void text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate);
-extern void text_poke_finish(void);
+extern void smp_text_poke_batch_finish(void);
 
 #define INT3_INSN_SIZE		1
 #define INT3_INSN_OPCODE	0xCC

arch/x86/kernel/alternative.c

···
 	}
 }
 
-void text_poke_finish(void)
+void smp_text_poke_batch_finish(void)
 {
 	smp_text_poke_batch_flush(NULL);
 }

arch/x86/kernel/ftrace.c

···
 	 * module load, and we need to finish the text_poke_queue()
 	 * that they do, here.
 	 */
-	text_poke_finish();
+	smp_text_poke_batch_finish();
 	ftrace_poke_late = 0;
 	mutex_unlock(&text_mutex);
 }
···
 		text_poke_queue((void *)rec->ip, new, MCOUNT_INSN_SIZE, NULL);
 		ftrace_update_record(rec, enable);
 	}
-	text_poke_finish();
+	smp_text_poke_batch_finish();
 }
 
 void arch_ftrace_update_code(int command)

arch/x86/kernel/jump_label.c

···
 void arch_jump_label_transform_apply(void)
 {
 	mutex_lock(&text_mutex);
-	text_poke_finish();
+	smp_text_poke_batch_finish();
 	mutex_unlock(&text_mutex);
 }