From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Mon, 29 Jul 2019 01:15:26 +0000 (-0700)
Subject: Fix channel programs on s390x
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=adf495e23982f2f94b468806fa059358fcab0c88;p=zfs

Fix channel programs on s390x

When adapting the original sources for s390x the JMP_BUF_CNT was
mistakenly halved due to an incorrect assumption of the size of
a unsigned long.  They are 8 bytes for the s390x architecture.
Increase JMP_BUF_CNT accordingly.

Authored-by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reported-by: Colin Ian King <canonical.com>
Tested-by: Colin Ian King <canonical.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8992
Closes #9080
---

diff --git a/module/lua/ldo.c b/module/lua/ldo.c
index aca02b234..59d0b6a2c 100644
--- a/module/lua/ldo.c
+++ b/module/lua/ldo.c
@@ -61,7 +61,7 @@
 #elif defined(__mips__)
 #define JMP_BUF_CNT	12
 #elif defined(__s390x__)
-#define JMP_BUF_CNT	9
+#define JMP_BUF_CNT	18
 #else
 #define	JMP_BUF_CNT	1
 #endif