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s390/ftrace: use text_poke_sync_lock()

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Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2021-10-01 14:21:43 +02:00 committed by Vasily Gorbik
parent 1c27dfb24e
commit ae2b9a11b4
1 changed files with 6 additions and 6 deletions
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12
arch/s390/kernel/ftrace.c
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@ -17,6 +17,7 @@
#include <linux/kprobes.h>
#include <trace/syscall.h>
#include <asm/asm-offsets.h>
#include <asm/text-patching.h>
#include <asm/cacheflush.h>
#include <asm/ftrace.lds.h>
#include <asm/nospec-branch.h>
@ -207,14 +208,13 @@ void arch_ftrace_update_code(int command)
ftrace_modify_all_code(command);
}
static void __ftrace_sync(void *dummy)
{
}
int ftrace_arch_code_modify_post_process(void)
{
/* Send SIGP to the other CPUs, so they see the new code. */
smp_call_function(__ftrace_sync, NULL, 1);
/*
* Flush any pre-fetched instructions on all
* CPUs to make the new code visible.
*/
text_poke_sync_lock();
return 0;
}