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

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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@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250411054105.2341982-16-mingo@kernel.org
This commit is contained in:
Ingo Molnar
2025-04-11 07:40:27 +02:00
parent aedb60c2c6
commit e8d7b8c2bb
4 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/include/asm/text-patching.h
View File

@@ -42,7 +42,7 @@ extern int smp_text_poke_int3_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

2
arch/x86/kernel/alternative.c
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@@ -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);
}

4
arch/x86/kernel/ftrace.c
View File

@@ -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)

2
arch/x86/kernel/jump_label.c
View File

@@ -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);
}