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authorJes Sorensen <jes@sgi.com>2006-02-28 09:42:23 -0800
committerTony Luck <tony.luck@intel.com>2006-02-28 09:42:23 -0800
commitd2b176ed878d4d5fcc0bd35656dfd373f3702af9 (patch)
treef5febd7d77fc374ddef9cbe549732bcb3b125c8b /kernel/sysctl.c
parentc8c1635faa7c97329111ce32b927d37306521822 (diff)
[IA64] sysctl option to silence unaligned trap warnings
Allow sysadmin to disable all warnings about userland apps making unaligned accesses by using: # echo 1 > /proc/sys/kernel/ignore-unaligned-usertrap Rather than having to use prctl on a process by process basis. Default behaivour leaves the warnings enabled. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c05a2b7125e1..acf6c1550f27 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -124,6 +124,10 @@ extern int sysctl_hz_timer;
extern int acct_parm[];
#endif
+#ifdef CONFIG_IA64
+extern int no_unaligned_warning;
+#endif
+
static int parse_table(int __user *, int, void __user *, size_t __user *, void __user *, size_t,
ctl_table *, void **);
static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
@@ -666,6 +670,16 @@ static ctl_table kern_table[] = {
.proc_handler = &proc_dointvec,
},
#endif
+#ifdef CONFIG_IA64
+ {
+ .ctl_name = KERN_IA64_UNALIGNED,
+ .procname = "ignore-unaligned-usertrap",
+ .data = &no_unaligned_warning,
+ .maxlen = sizeof (int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+#endif
{ .ctl_name = 0 }
};