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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 12:55:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 12:55:35 -0700
commit2d338201d5311bcd79d42f66df4cecbcbc5f4f2c (patch)
tree75d87f65c31f4721ba6a5356d2a487af9e2961c3 /tools
parentcc09ee80c3b18ae1a897a30a17fe710b2b2f620a (diff)
parentb285437d1d929785a5bef3603da78d2cd5341893 (diff)
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f. Subsystems affected by this patch series: mm (memory-hotplug, rmap, ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan), alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib, checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig, selftests, ipc, and scripts" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits) scripts: check_extable: fix typo in user error message mm/workingset: correct kernel-doc notations ipc: replace costly bailout check in sysvipc_find_ipc() selftests/memfd: remove unused variable Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH configs: remove the obsolete CONFIG_INPUT_POLLDEV prctl: allow to setup brk for et_dyn executables pid: cleanup the stale comment mentioning pidmap_init(). kernel/fork.c: unexport get_{mm,task}_exe_file coredump: fix memleak in dump_vma_snapshot() fs/coredump.c: log if a core dump is aborted due to changed file permissions nilfs2: use refcount_dec_and_lock() to fix potential UAF nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_device_group trap: cleanup trap_init() init: move usermodehelper_enable() to populate_rootfs() ...
Diffstat (limited to 'tools')
-rw-r--r--tools/include/linux/bitmap.h4
-rw-r--r--tools/perf/bench/find-bit-bench.c2
-rw-r--r--tools/perf/builtin-c2c.c6
-rw-r--r--tools/perf/builtin-record.c2
-rw-r--r--tools/perf/tests/bitmap.c2
-rw-r--r--tools/perf/tests/mem2node.c2
-rw-r--r--tools/perf/util/affinity.c4
-rw-r--r--tools/perf/util/header.c4
-rw-r--r--tools/perf/util/metricgroup.c2
-rw-r--r--tools/perf/util/mmap.c4
-rw-r--r--tools/testing/selftests/damon/Makefile7
-rw-r--r--tools/testing/selftests/damon/_chk_dependency.sh28
-rw-r--r--tools/testing/selftests/damon/debugfs_attrs.sh75
-rw-r--r--tools/testing/selftests/kvm/dirty_log_perf_test.c2
-rw-r--r--tools/testing/selftests/kvm/dirty_log_test.c4
-rw-r--r--tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c2
-rw-r--r--tools/testing/selftests/memfd/memfd_test.c2
17 files changed, 131 insertions, 21 deletions
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index 9d959bc24859..95611df1d26e 100644
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -111,10 +111,10 @@ static inline int test_and_clear_bit(int nr, unsigned long *addr)
}
/**
- * bitmap_alloc - Allocate bitmap
+ * bitmap_zalloc - Allocate bitmap
* @nbits: Number of bits
*/
-static inline unsigned long *bitmap_alloc(int nbits)
+static inline unsigned long *bitmap_zalloc(int nbits)
{
return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long));
}
diff --git a/tools/perf/bench/find-bit-bench.c b/tools/perf/bench/find-bit-bench.c
index 73b5bcc5946a..22b5cfe97023 100644
--- a/tools/perf/bench/find-bit-bench.c
+++ b/tools/perf/bench/find-bit-bench.c
@@ -54,7 +54,7 @@ static bool asm_test_bit(long nr, const unsigned long *addr)
static int do_for_each_set_bit(unsigned int num_bits)
{
- unsigned long *to_test = bitmap_alloc(num_bits);
+ unsigned long *to_test = bitmap_zalloc(num_bits);
struct timeval start, end, diff;
u64 runtime_us;
struct stats fb_time_stats, tb_time_stats;
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index a812f32cf5d9..a192014fa52b 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -139,11 +139,11 @@ static void *c2c_he_zalloc(size_t size)
if (!c2c_he)
return NULL;
- c2c_he->cpuset = bitmap_alloc(c2c.cpus_cnt);
+ c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt);
if (!c2c_he->cpuset)
return NULL;
- c2c_he->nodeset = bitmap_alloc(c2c.nodes_cnt);
+ c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt);
if (!c2c_he->nodeset)
return NULL;
@@ -2047,7 +2047,7 @@ static int setup_nodes(struct perf_session *session)
struct perf_cpu_map *map = n[node].map;
unsigned long *set;
- set = bitmap_alloc(c2c.cpus_cnt);
+ set = bitmap_zalloc(c2c.cpus_cnt);
if (!set)
return -ENOMEM;
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 06c4dca0c466..b3509d9d20cc 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2757,7 +2757,7 @@ int cmd_record(int argc, const char **argv)
if (rec->opts.affinity != PERF_AFFINITY_SYS) {
rec->affinity_mask.nbits = cpu__max_cpu();
- rec->affinity_mask.bits = bitmap_alloc(rec->affinity_mask.nbits);
+ rec->affinity_mask.bits = bitmap_zalloc(rec->affinity_mask.nbits);
if (!rec->affinity_mask.bits) {
pr_err("Failed to allocate thread mask for %zd cpus\n", rec->affinity_mask.nbits);
err = -ENOMEM;
diff --git a/tools/perf/tests/bitmap.c b/tools/perf/tests/bitmap.c
index 96c137360918..12b805efdca0 100644
--- a/tools/perf/tests/bitmap.c
+++ b/tools/perf/tests/bitmap.c
@@ -14,7 +14,7 @@ static unsigned long *get_bitmap(const char *str, int nbits)
unsigned long *bm = NULL;
int i;
- bm = bitmap_alloc(nbits);
+ bm = bitmap_zalloc(nbits);
if (map && bm) {
for (i = 0; i < map->nr; i++)
diff --git a/tools/perf/tests/mem2node.c b/tools/perf/tests/mem2node.c
index a258bd51f1a4..e4d0d58b97f8 100644
--- a/tools/perf/tests/mem2node.c
+++ b/tools/perf/tests/mem2node.c
@@ -27,7 +27,7 @@ static unsigned long *get_bitmap(const char *str, int nbits)
unsigned long *bm = NULL;
int i;
- bm = bitmap_alloc(nbits);
+ bm = bitmap_zalloc(nbits);
if (map && bm) {
for (i = 0; i < map->nr; i++) {
diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c
index a5e31f826828..7b12bd7a3080 100644
--- a/tools/perf/util/affinity.c
+++ b/tools/perf/util/affinity.c
@@ -25,11 +25,11 @@ int affinity__setup(struct affinity *a)
{
int cpu_set_size = get_cpu_set_size();
- a->orig_cpus = bitmap_alloc(cpu_set_size * 8);
+ a->orig_cpus = bitmap_zalloc(cpu_set_size * 8);
if (!a->orig_cpus)
return -1;
sched_getaffinity(0, cpu_set_size, (cpu_set_t *)a->orig_cpus);
- a->sched_cpus = bitmap_alloc(cpu_set_size * 8);
+ a->sched_cpus = bitmap_zalloc(cpu_set_size * 8);
if (!a->sched_cpus) {
zfree(&a->orig_cpus);
return -1;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index d2231cb7c4f7..1c7414f66655 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -278,7 +278,7 @@ static int do_read_bitmap(struct feat_fd *ff, unsigned long **pset, u64 *psize)
if (ret)
return ret;
- set = bitmap_alloc(size);
+ set = bitmap_zalloc(size);
if (!set)
return -ENOMEM;
@@ -1294,7 +1294,7 @@ static int memory_node__read(struct memory_node *n, unsigned long idx)
size++;
- n->set = bitmap_alloc(size);
+ n->set = bitmap_zalloc(size);
if (!n->set) {
closedir(dir);
return -ENOMEM;
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 99d047c5ead0..29b747ac31c1 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -313,7 +313,7 @@ static int metricgroup__setup_events(struct list_head *groups,
struct evsel *evsel, *tmp;
unsigned long *evlist_used;
- evlist_used = bitmap_alloc(perf_evlist->core.nr_entries);
+ evlist_used = bitmap_zalloc(perf_evlist->core.nr_entries);
if (!evlist_used)
return -ENOMEM;
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index ab7108d22428..512dc8b9c168 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -106,7 +106,7 @@ static int perf_mmap__aio_bind(struct mmap *map, int idx, int cpu, int affinity)
data = map->aio.data[idx];
mmap_len = mmap__mmap_len(map);
node_index = cpu__get_node(cpu);
- node_mask = bitmap_alloc(node_index + 1);
+ node_mask = bitmap_zalloc(node_index + 1);
if (!node_mask) {
pr_err("Failed to allocate node mask for mbind: error %m\n");
return -1;
@@ -258,7 +258,7 @@ static void build_node_mask(int node, struct mmap_cpu_mask *mask)
static int perf_mmap__setup_affinity_mask(struct mmap *map, struct mmap_params *mp)
{
map->affinity_mask.nbits = cpu__max_cpu();
- map->affinity_mask.bits = bitmap_alloc(map->affinity_mask.nbits);
+ map->affinity_mask.bits = bitmap_zalloc(map->affinity_mask.nbits);
if (!map->affinity_mask.bits)
return -1;
diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile
new file mode 100644
index 000000000000..8a3f2cd9fec0
--- /dev/null
+++ b/tools/testing/selftests/damon/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for damon selftests
+
+TEST_FILES = _chk_dependency.sh
+TEST_PROGS = debugfs_attrs.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/damon/_chk_dependency.sh b/tools/testing/selftests/damon/_chk_dependency.sh
new file mode 100644
index 000000000000..0189db81550b
--- /dev/null
+++ b/tools/testing/selftests/damon/_chk_dependency.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+DBGFS=/sys/kernel/debug/damon
+
+if [ $EUID -ne 0 ];
+then
+ echo "Run as root"
+ exit $ksft_skip
+fi
+
+if [ ! -d "$DBGFS" ]
+then
+ echo "$DBGFS not found"
+ exit $ksft_skip
+fi
+
+for f in attrs target_ids monitor_on
+do
+ if [ ! -f "$DBGFS/$f" ]
+ then
+ echo "$f not found"
+ exit 1
+ fi
+done
diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
new file mode 100644
index 000000000000..bfabb19dc0d3
--- /dev/null
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+test_write_result() {
+ file=$1
+ content=$2
+ orig_content=$3
+ expect_reason=$4
+ expected=$5
+
+ echo "$content" > "$file"
+ if [ $? -ne "$expected" ]
+ then
+ echo "writing $content to $file doesn't return $expected"
+ echo "expected because: $expect_reason"
+ echo "$orig_content" > "$file"
+ exit 1
+ fi
+}
+
+test_write_succ() {
+ test_write_result "$1" "$2" "$3" "$4" 0
+}
+
+test_write_fail() {
+ test_write_result "$1" "$2" "$3" "$4" 1
+}
+
+test_content() {
+ file=$1
+ orig_content=$2
+ expected=$3
+ expect_reason=$4
+
+ content=$(cat "$file")
+ if [ "$content" != "$expected" ]
+ then
+ echo "reading $file expected $expected but $content"
+ echo "expected because: $expect_reason"
+ echo "$orig_content" > "$file"
+ exit 1
+ fi
+}
+
+source ./_chk_dependency.sh
+
+# Test attrs file
+# ===============
+
+file="$DBGFS/attrs"
+orig_content=$(cat "$file")
+
+test_write_succ "$file" "1 2 3 4 5" "$orig_content" "valid input"
+test_write_fail "$file" "1 2 3 4" "$orig_content" "no enough fields"
+test_write_fail "$file" "1 2 3 5 4" "$orig_content" \
+ "min_nr_regions > max_nr_regions"
+test_content "$file" "$orig_content" "1 2 3 4 5" "successfully written"
+echo "$orig_content" > "$file"
+
+# Test target_ids file
+# ====================
+
+file="$DBGFS/target_ids"
+orig_content=$(cat "$file")
+
+test_write_succ "$file" "1 2 3 4" "$orig_content" "valid input"
+test_write_succ "$file" "1 2 abc 4" "$orig_content" "still valid input"
+test_content "$file" "$orig_content" "1 2" "non-integer was there"
+test_write_succ "$file" "abc 2 3" "$orig_content" "the file allows wrong input"
+test_content "$file" "$orig_content" "" "wrong input written"
+test_write_succ "$file" "" "$orig_content" "empty input"
+test_content "$file" "$orig_content" "" "empty input written"
+echo "$orig_content" > "$file"
+
+echo "PASS"
diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
index 3c30d0045d8d..479868570d59 100644
--- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -171,7 +171,7 @@ static void run_test(enum vm_guest_mode mode, void *arg)
guest_num_pages = (nr_vcpus * guest_percpu_mem_size) >> vm_get_page_shift(vm);
guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
host_num_pages = vm_num_host_pages(mode, guest_num_pages);
- bmap = bitmap_alloc(host_num_pages);
+ bmap = bitmap_zalloc(host_num_pages);
if (dirty_log_manual_caps) {
cap.cap = KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2;
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index 5fe0140e407e..792c60e1b17d 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -749,8 +749,8 @@ static void run_test(enum vm_guest_mode mode, void *arg)
pr_info("guest physical test memory offset: 0x%lx\n", guest_test_phys_mem);
- bmap = bitmap_alloc(host_num_pages);
- host_bmap_track = bitmap_alloc(host_num_pages);
+ bmap = bitmap_zalloc(host_num_pages);
+ host_bmap_track = bitmap_zalloc(host_num_pages);
/* Add an extra memory slot for testing dirty logging */
vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
index 06a64980a5d2..68f26a8b4f42 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
@@ -111,7 +111,7 @@ int main(int argc, char *argv[])
nested_map(vmx, vm, NESTED_TEST_MEM1, GUEST_TEST_MEM, 4096);
nested_map(vmx, vm, NESTED_TEST_MEM2, GUEST_TEST_MEM, 4096);
- bmap = bitmap_alloc(TEST_MEM_PAGES);
+ bmap = bitmap_zalloc(TEST_MEM_PAGES);
host_test_mem = addr_gpa2hva(vm, GUEST_TEST_MEM);
while (!done) {
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 74baab83fec3..192a2899bae8 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -56,7 +56,7 @@ static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
static int mfd_assert_reopen_fd(int fd_in)
{
- int r, fd;
+ int fd;
char path[100];
sprintf(path, "/proc/self/fd/%d", fd_in);