commit 9d6d99e3ac8ccfd0945edb3c83cd912838775056
author Heiko Carstens <heiko.carstens@de.ibm.com> Sat Jun 30 10:54:15 2018 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> Wed Jul 04 08:35:18 2018 +0200
tree 6a429bbe7984e920b7a8abe545bd30c0501ff297
parent 8bf935501a7ef1b2ec3b51c804d657d5895f221a

s390: wire up rseq system call

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/entry.S

diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 3891805..150130c 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -357,6 +357,10 @@
 	stg	%r2,__PT_R2(%r11)		# store return value
 
 .Lsysc_return:
+#ifdef CONFIG_DEBUG_RSEQ
+	lgr	%r2,%r11
+	brasl	%r14,rseq_syscall
+#endif
 	LOCKDEP_SYS_EXIT
 .Lsysc_tif:
 	TSTMSK	__PT_FLAGS(%r11),_PIF_WORK