From 34ff636f322c6d5e4f0a52338fa63a7dff09a495 Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sat, 18 Jul 2026 13:15:36 -0400 Subject: scftorture: Count single_rpc offline failures in statistics output 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 Signed-off-by: Paul E. McKenney --- security/selinux/include/hash.h | 47 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 security/selinux/include/hash.h (limited to 'security/selinux/include/hash.h') diff --git a/security/selinux/include/hash.h b/security/selinux/include/hash.h new file mode 100644 index 000000000..18956dbef --- /dev/null +++ b/security/selinux/include/hash.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef _SELINUX_HASH_H_ +#define _SELINUX_HASH_H_ + +/* + * Based on MurmurHash3, written by Austin Appleby and placed in the + * public domain. + */ +static inline u32 av_hash(u32 key1, u32 key2, u32 key3, u32 mask) +{ + static const u32 c1 = 0xcc9e2d51; + static const u32 c2 = 0x1b873593; + static const u32 r1 = 15; + static const u32 r2 = 13; + static const u32 m = 5; + static const u32 n = 0xe6546b64; + + u32 hash = 0; + +#define mix(input) \ + do { \ + u32 v = input; \ + v *= c1; \ + v = (v << r1) | (v >> (32 - r1)); \ + v *= c2; \ + hash ^= v; \ + hash = (hash << r2) | (hash >> (32 - r2)); \ + hash = hash * m + n; \ + } while (0) + + mix(key1); + mix(key2); + mix(key3); + +#undef mix + + hash ^= hash >> 16; + hash *= 0x85ebca6b; + hash ^= hash >> 13; + hash *= 0xc2b2ae35; + hash ^= hash >> 16; + + return hash & mask; +} + +#endif /* _SELINUX_HASH_H_ */ -- cgit v1.3.1