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-rw-r--r--tools/perf/bench/futex-hash.c1
-rw-r--r--tools/perf/bench/futex-lock-pi.c1
-rw-r--r--tools/perf/bench/futex-requeue.c1
-rw-r--r--tools/perf/bench/futex-wake-parallel.c1
-rw-r--r--tools/perf/bench/futex-wake.c1
-rw-r--r--tools/perf/bench/futex.c21
-rw-r--r--tools/perf/bench/futex.h1
-rw-r--r--tools/perf/trace/beauty/include/uapi/linux/prctl.h2
8 files changed, 5 insertions, 24 deletions
diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c
index d2d6d7f3ea33..7e29f04da744 100644
--- a/tools/perf/bench/futex-hash.c
+++ b/tools/perf/bench/futex-hash.c
@@ -56,7 +56,6 @@ static struct bench_futex_parameters params = {
static const struct option options[] = {
OPT_INTEGER( 'b', "buckets", &params.nbuckets, "Specify amount of hash buckets"),
- OPT_BOOLEAN( 'I', "immutable", &params.buckets_immutable, "Make the hash buckets immutable"),
OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
OPT_UINTEGER('r', "runtime", &params.runtime, "Specify runtime (in seconds)"),
OPT_UINTEGER('f', "futexes", &params.nfutexes, "Specify amount of futexes per threads"),
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 5144a158512c..40640b674427 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -47,7 +47,6 @@ static struct bench_futex_parameters params = {
static const struct option options[] = {
OPT_INTEGER( 'b', "buckets", &params.nbuckets, "Specify amount of hash buckets"),
- OPT_BOOLEAN( 'I', "immutable", &params.buckets_immutable, "Make the hash buckets immutable"),
OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
OPT_UINTEGER('r', "runtime", &params.runtime, "Specify runtime (in seconds)"),
OPT_BOOLEAN( 'M', "multi", &params.multi, "Use multiple futexes"),
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index a2f91ee1950b..0748b0fd689e 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -52,7 +52,6 @@ static struct bench_futex_parameters params = {
static const struct option options[] = {
OPT_INTEGER( 'b', "buckets", &params.nbuckets, "Specify amount of hash buckets"),
- OPT_BOOLEAN( 'I', "immutable", &params.buckets_immutable, "Make the hash buckets immutable"),
OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
OPT_UINTEGER('q', "nrequeue", &params.nrequeue, "Specify amount of threads to requeue at once"),
OPT_BOOLEAN( 's', "silent", &params.silent, "Silent mode: do not display data/details"),
diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c
index ee66482c29fd..6aede7c46b33 100644
--- a/tools/perf/bench/futex-wake-parallel.c
+++ b/tools/perf/bench/futex-wake-parallel.c
@@ -63,7 +63,6 @@ static struct bench_futex_parameters params = {
static const struct option options[] = {
OPT_INTEGER( 'b', "buckets", &params.nbuckets, "Specify amount of hash buckets"),
- OPT_BOOLEAN( 'I', "immutable", &params.buckets_immutable, "Make the hash buckets immutable"),
OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
OPT_UINTEGER('w', "nwakers", &params.nwakes, "Specify amount of waking threads"),
OPT_BOOLEAN( 's', "silent", &params.silent, "Silent mode: do not display data/details"),
diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c
index 8d6107f7cd94..a31fc1563862 100644
--- a/tools/perf/bench/futex-wake.c
+++ b/tools/perf/bench/futex-wake.c
@@ -52,7 +52,6 @@ static struct bench_futex_parameters params = {
static const struct option options[] = {
OPT_INTEGER( 'b', "buckets", &params.nbuckets, "Specify amount of hash buckets"),
- OPT_BOOLEAN( 'I', "immutable", &params.buckets_immutable, "Make the hash buckets immutable"),
OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
OPT_UINTEGER('w', "nwakes", &params.nwakes, "Specify amount of threads to wake at once"),
OPT_BOOLEAN( 's', "silent", &params.silent, "Silent mode: do not display data/details"),
diff --git a/tools/perf/bench/futex.c b/tools/perf/bench/futex.c
index 4c4fee107e59..1481196a22f0 100644
--- a/tools/perf/bench/futex.c
+++ b/tools/perf/bench/futex.c
@@ -9,21 +9,17 @@
#ifndef PR_FUTEX_HASH
#define PR_FUTEX_HASH 78
# define PR_FUTEX_HASH_SET_SLOTS 1
-# define FH_FLAG_IMMUTABLE (1ULL << 0)
# define PR_FUTEX_HASH_GET_SLOTS 2
-# define PR_FUTEX_HASH_GET_IMMUTABLE 3
#endif // PR_FUTEX_HASH
void futex_set_nbuckets_param(struct bench_futex_parameters *params)
{
- unsigned long flags;
int ret;
if (params->nbuckets < 0)
return;
- flags = params->buckets_immutable ? FH_FLAG_IMMUTABLE : 0;
- ret = prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_SET_SLOTS, params->nbuckets, flags);
+ ret = prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_SET_SLOTS, params->nbuckets, 0);
if (ret) {
printf("Requesting %d hash buckets failed: %d/%m\n",
params->nbuckets, ret);
@@ -47,18 +43,11 @@ void futex_print_nbuckets(struct bench_futex_parameters *params)
printf("Requested: %d in usage: %d\n", params->nbuckets, ret);
err(EXIT_FAILURE, "prctl(PR_FUTEX_HASH)");
}
- if (params->nbuckets == 0) {
+ if (params->nbuckets == 0)
ret = asprintf(&futex_hash_mode, "Futex hashing: global hash");
- } else {
- ret = prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_GET_IMMUTABLE);
- if (ret < 0) {
- printf("Can't check if the hash is immutable: %m\n");
- err(EXIT_FAILURE, "prctl(PR_FUTEX_HASH)");
- }
- ret = asprintf(&futex_hash_mode, "Futex hashing: %d hash buckets %s",
- params->nbuckets,
- ret == 1 ? "(immutable)" : "");
- }
+ else
+ ret = asprintf(&futex_hash_mode, "Futex hashing: %d hash buckets",
+ params->nbuckets);
} else {
if (ret <= 0) {
ret = asprintf(&futex_hash_mode, "Futex hashing: global hash");
diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h
index 9c9a73f9d865..dd295d27044a 100644
--- a/tools/perf/bench/futex.h
+++ b/tools/perf/bench/futex.h
@@ -26,7 +26,6 @@ struct bench_futex_parameters {
unsigned int nwakes;
unsigned int nrequeue;
int nbuckets;
- bool buckets_immutable;
};
/**
diff --git a/tools/perf/trace/beauty/include/uapi/linux/prctl.h b/tools/perf/trace/beauty/include/uapi/linux/prctl.h
index 43dec6eed559..3b93fb906e3c 100644
--- a/tools/perf/trace/beauty/include/uapi/linux/prctl.h
+++ b/tools/perf/trace/beauty/include/uapi/linux/prctl.h
@@ -367,8 +367,6 @@ struct prctl_mm_map {
/* FUTEX hash management */
#define PR_FUTEX_HASH 78
# define PR_FUTEX_HASH_SET_SLOTS 1
-# define FH_FLAG_IMMUTABLE (1ULL << 0)
# define PR_FUTEX_HASH_GET_SLOTS 2
-# define PR_FUTEX_HASH_GET_IMMUTABLE 3
#endif /* _LINUX_PRCTL_H */
generated by cgit (git 2.34.1) at 2025-07-30 03:03:25 +0000