linux-kernel - [PATCH 13/49] x86/alternatives: Rename 'text_poke_finish()' to 'smp_text_poke_batch

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Message-ID: <20250328132704.1901674-14-mingo@kernel.org>
Date: Fri, 28 Mar 2025 14:26:28 +0100
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Juergen Gross <jgross@...e.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>
Subject: [PATCH 13/49] 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 <mingo@...nel.org>
---
 arch/x86/include/asm/text-patching.h | 2 +-
 arch/x86/kernel/alternative.c        | 2 +-
 arch/x86/kernel/ftrace.c             | 4 ++--
 arch/x86/kernel/jump_label.c         | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
index b7e8fb8f3648..6534c40b7427 100644
--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -42,7 +42,7 @@ extern int smp_text_poke_int3_trap_handler(struct pt_regs *regs);
 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
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index e49c67c3942f..abe6a9fa9be7 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -2866,7 +2866,7 @@ static void smp_text_poke_batch_flush(void *addr)
 	}
 }
 
-void text_poke_finish(void)
+void smp_text_poke_batch_finish(void)
 {
 	smp_text_poke_batch_flush(NULL);
 }
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 7175a0404def..c35a928364b9 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -58,7 +58,7 @@ void ftrace_arch_code_modify_post_process(void)
 	 * 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);
 }
@@ -250,7 +250,7 @@ void ftrace_replace_code(int enable)
 		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)
diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index 166e12037199..28be6eb6cb3d 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -143,6 +143,6 @@ bool arch_jump_label_transform_queue(struct jump_entry *entry,
 void arch_jump_label_transform_apply(void)
 {
 	mutex_lock(&text_mutex);
-	text_poke_finish();
+	smp_text_poke_batch_finish();
 	mutex_unlock(&text_mutex);
 }
-- 
2.45.2