github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 16:12:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

x86/alternatives: Remove the mixed-patching restriction on smp_text_poke_single()

Browse Source 
At this point smp_text_poke_single(addr, opcode, len, emulate) is equivalent to:

	smp_text_poke_batch_add(addr, opcode, len, emulate);
	smp_text_poke_batch_finish();

So remove the restriction on mixing single-instruction patching
with multi-instruction patching.

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/20250411054105.2341982-37-mingo@kernel.org
This commit is contained in:
Ingo Molnar 2025-04-11 07:40:48 +02:00
parent 0e351aec2b
commit 8a6a1b4e0e
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/x86/kernel/alternative.c
View File

@ -2892,9 +2892,6 @@ void __ref smp_text_poke_batch_add(void *addr, const void *opcode, size_t len, c
*/
void __ref smp_text_poke_single(void *addr, const void *opcode, size_t len, const void *emulate)
{
/* Batch-patching should not be mixed with single-patching: */
WARN_ON_ONCE(text_poke_array.nr_entries != 0);
__smp_text_poke_batch_add(addr, opcode, len, emulate);
smp_text_poke_batch_finish();
}