scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/fs/verity/init.c b/fs/verity/init.c
new file mode 100644
index 000000000..3aa55dec8
--- /dev/null
+++ b/fs/verity/init.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs-verity module initialization and logging
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#define CREATE_TRACE_POINTS
+#include "fsverity_private.h"
+
+#include <linux/ratelimit.h>
+
+#ifdef CONFIG_SYSCTL
+static const struct ctl_table fsverity_sysctl_table[] = {
+#ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
+	{
+		.procname       = "require_signatures",
+		.data           = &fsverity_require_signatures,
+		.maxlen         = sizeof(int),
+		.mode           = 0644,
+		.proc_handler   = proc_dointvec_minmax,
+		.extra1         = SYSCTL_ZERO,
+		.extra2         = SYSCTL_ONE,
+	},
+#endif
+};
+
+static void __init fsverity_init_sysctl(void)
+{
+	register_sysctl_init("fs/verity", fsverity_sysctl_table);
+}
+#else /* CONFIG_SYSCTL */
+static inline void fsverity_init_sysctl(void)
+{
+}
+#endif /* !CONFIG_SYSCTL */
+
+void fsverity_msg(const struct inode *inode, const char *level,
+		  const char *fmt, ...)
+{
+	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
+				      DEFAULT_RATELIMIT_BURST);
+	struct va_format vaf;
+	va_list args;
+
+	if (!__ratelimit(&rs))
+		return;
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	if (inode)
+		printk("%sfs-verity (%s, inode %llu): %pV\n",
+		       level, inode->i_sb->s_id, inode->i_ino, &vaf);
+	else
+		printk("%sfs-verity: %pV\n", level, &vaf);
+	va_end(args);
+}
+
+static int __init fsverity_init(void)
+{
+	fsverity_check_hash_algs();
+	fsverity_init_info_cache();
+	fsverity_init_workqueue();
+	fsverity_init_sysctl();
+	fsverity_init_signature();
+	fsverity_init_bpf();
+	return 0;
+}
+late_initcall(fsverity_init)