- Linux-kselftest-mirror - lists.linaro.org

[PATCH 6.1 00/15] genetlink: Test Netlink subsystem of Linux v6.1

by Yana Bashlykova

This series adds comprehensive testing infrastructure for Netlink and Generic Netlink The implementation includes both kernel module and userspace tests to verify correct Generic Netlink and Netlink behaviors under various conditions. Yana Bashlykova (15): genetlink: add sysfs test module for Generic Netlink genetlink: add TEST_GENL family for netlink testing genetlink: add PARALLEL_GENL test family genetlink: add test case for duplicate genl family registration genetlink: add test case for family with invalid ops genetlink: add netlink notifier support genetlink: add THIRD_GENL family genetlink: verify unregister fails for non-registered family genetlink: add LARGE_GENL stress test family selftests: net: genetlink: add packet capture test infrastructure selftests: net: genetlink: add /proc/net/netlink test selftests: net: genetlink: add Generic Netlink controller tests selftests: net: genetlink: add large family ID resolution test selftests: net: genetlink: add Netlink and Generic Netlink test suite selftests: net: genetlink: fix expectation for large family resolution drivers/net/Kconfig | 2 + drivers/net/Makefile | 2 + drivers/net/genetlink/Kconfig | 8 + drivers/net/genetlink/Makefile | 3 + .../net-pf-16-proto-16-family-PARALLEL_GENL.c | 1921 ++++++ tools/testing/selftests/net/Makefile | 6 + tools/testing/selftests/net/genetlink.c | 5152 +++++++++++++++++ 7 files changed, 7094 insertions(+) create mode 100644 drivers/net/genetlink/Kconfig create mode 100644 drivers/net/genetlink/Makefile create mode 100644 drivers/net/genetlink/net-pf-16-proto-16-family-PARALLEL_GENL.c create mode 100644 tools/testing/selftests/net/genetlink.c -- 2.34.1

3 days, 12 hours

2
7
0 0

[PATCH v3 0/3] HID: hidraw: rework ioctls

by Benjamin Tissoires

Arnd sent the v1 of the series in July, and it was bogus. So with a little help from claude-sonnet I built up the missing ioctls tests and tried to figure out a way to apply Arnd's logic without breaking the existing ioctls. The end result is in patch 3/3, which makes use of subfunctions to keep the main ioctl code path clean. Signed-off-by: Benjamin Tissoires <bentiss(a)kernel.org> --- Changes in v3: - dropped the co-developed-by tag and put a blurb instead - change the attribution of patch 3/3 to me as requested by Arnd. - Link to v2: https://lore.kernel.org/r/20250826-b4-hidraw-ioctls-v2-0-c7726b236719@kerne… changes in v2: - add new hidraw ioctls tests - refactor Arnd's patch to keep the existing error path logic - link to v1: https://lore.kernel.org/linux-input/20250711072847.2836962-1-arnd@kernel.or… --- Benjamin Tissoires (3): selftests/hid: hidraw: add more coverage for hidraw ioctls selftests/hid: hidraw: forge wrong ioctls and tests them HID: hidraw: tighten ioctl command parsing drivers/hid/hidraw.c | 224 ++++++++------- include/uapi/linux/hidraw.h | 2 + tools/testing/selftests/hid/hid_common.h | 6 + tools/testing/selftests/hid/hidraw.c | 473 +++++++++++++++++++++++++++++++ 4 files changed, 603 insertions(+), 102 deletions(-) --- base-commit: 02d6eeedbc36d4b309d5518778071a749ef79c4e change-id: 20250825-b4-hidraw-ioctls-66f34297032a Best regards, -- Benjamin Tissoires <bentiss(a)kernel.org>

3 days, 16 hours

1
3
0 0

[PATCH] mm/memory-failure: Disable soft offline for HugeTLB pages by default

by Kyle Meyer

Soft offlining a HugeTLB page reduces the available HugeTLB page pool. Since HugeTLB pages are preallocated, reducing the available HugeTLB page pool can cause allocation failures. /proc/sys/vm/enable_soft_offline provides a sysctl interface to disable/enable soft offline: 0 - Soft offline is disabled. 1 - Soft offline is enabled. The current sysctl interface does not distinguish between HugeTLB pages and other page types. Disable soft offline for HugeTLB pages by default (1) and extend the sysctl interface to preserve existing behavior (2): 0 - Soft offline is disabled. 1 - Soft offline is enabled (excluding HugeTLB pages). 2 - Soft offline is enabled (including HugeTLB pages). Update documentation for the sysctl interface, reference the sysctl interface in the sysfs ABI documentation, and update HugeTLB soft offline selftests. Reported-by: Shawn Fan <shawn.fan(a)intel.com> Suggested-by: Tony Luck <tony.luck(a)intel.com> Signed-off-by: Kyle Meyer <kyle.meyer(a)hpe.com> --- Tony's original patch disabled soft offline for HugeTLB pages when a correctable memory error reported via GHES (with "error threshold exceeded" set) happened to be on a HugeTLB page: https://lore.kernel.org/all/20250904155720.22149-1-tony.luck@intel.com This patch disables soft offline for HugeTLB pages by default (not just from GHES). --- .../ABI/testing/sysfs-memory-page-offline | 6 ++++ Documentation/admin-guide/sysctl/vm.rst | 18 ++++++++--- mm/memory-failure.c | 21 ++++++++++-- .../selftests/mm/hugetlb-soft-offline.c | 32 +++++++++++++------ 4 files changed, 60 insertions(+), 17 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-memory-page-offline b/Documentation/ABI/testing/sysfs-memory-page-offline index 00f4e35f916f..befb89ae39ec 100644 --- a/Documentation/ABI/testing/sysfs-memory-page-offline +++ b/Documentation/ABI/testing/sysfs-memory-page-offline @@ -20,6 +20,12 @@ Description: number, or a error when the offlining failed. Reading the file is not allowed. + Soft-offline can be disabled/enabled via sysctl: + /proc/sys/vm/enable_soft_offline + + For details, see: + Documentation/admin-guide/sysctl/vm.rst + What: /sys/devices/system/memory/hard_offline_page Date: Sep 2009 KernelVersion: 2.6.33 diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst index 4d71211fdad8..ae56372bd604 100644 --- a/Documentation/admin-guide/sysctl/vm.rst +++ b/Documentation/admin-guide/sysctl/vm.rst @@ -309,19 +309,29 @@ physical memory) vs performance / capacity implications in transparent and HugeTLB cases. For all architectures, enable_soft_offline controls whether to soft offline -memory pages. When set to 1, kernel attempts to soft offline the pages -whenever it thinks needed. When set to 0, kernel returns EOPNOTSUPP to -the request to soft offline the pages. Its default value is 1. +memory pages: + +- 0: Soft offline is disabled. +- 1: Soft offline is enabled (excluding HugeTLB pages). +- 2: Soft offline is enabled (including HugeTLB pages). + +The default is 1. + +If soft offline is disabled for the requested page type, EOPNOTSUPP is returned. It is worth mentioning that after setting enable_soft_offline to 0, the following requests to soft offline pages will not be performed: +- Request to soft offline from sysfs (soft_offline_page). + - Request to soft offline pages from RAS Correctable Errors Collector. -- On ARM, the request to soft offline pages from GHES driver. +- On ARM and X86, the request to soft offline pages from GHES driver. - On PARISC, the request to soft offline pages from Page Deallocation Table. +Note: Soft offlining a HugeTLB page reduces the HugeTLB page pool. + extfrag_threshold ================= diff --git a/mm/memory-failure.c b/mm/memory-failure.c index fc30ca4804bf..cb59a99b48c5 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -64,11 +64,18 @@ #include "internal.h" #include "ras/ras_event.h" +enum soft_offline { + SOFT_OFFLINE_DISABLED = 0, + SOFT_OFFLINE_ENABLED_SKIP_HUGETLB, + SOFT_OFFLINE_ENABLED +}; + static int sysctl_memory_failure_early_kill __read_mostly; static int sysctl_memory_failure_recovery __read_mostly = 1; -static int sysctl_enable_soft_offline __read_mostly = 1; +static int sysctl_enable_soft_offline __read_mostly = + SOFT_OFFLINE_ENABLED_SKIP_HUGETLB; atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0); @@ -150,7 +157,7 @@ static const struct ctl_table memory_failure_table[] = { .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = SYSCTL_ZERO, - .extra2 = SYSCTL_ONE, + .extra2 = SYSCTL_TWO, } }; @@ -2799,12 +2806,20 @@ int soft_offline_page(unsigned long pfn, int flags) return -EIO; } - if (!sysctl_enable_soft_offline) { + if (sysctl_enable_soft_offline == SOFT_OFFLINE_DISABLED) { pr_info_once("disabled by /proc/sys/vm/enable_soft_offline\n"); put_ref_page(pfn, flags); return -EOPNOTSUPP; } + if (sysctl_enable_soft_offline == SOFT_OFFLINE_ENABLED_SKIP_HUGETLB) { + if (folio_test_hugetlb(pfn_folio(pfn))) { + pr_info_once("disabled for HugeTLB pages by /proc/sys/vm/enable_soft_offline\n"); + put_ref_page(pfn, flags); + return -EOPNOTSUPP; + } + } + mutex_lock(&mf_mutex); if (PageHWPoison(page)) { diff --git a/tools/testing/selftests/mm/hugetlb-soft-offline.c b/tools/testing/selftests/mm/hugetlb-soft-offline.c index f086f0e04756..7e2873cd0a6d 100644 --- a/tools/testing/selftests/mm/hugetlb-soft-offline.c +++ b/tools/testing/selftests/mm/hugetlb-soft-offline.c @@ -1,10 +1,15 @@ // SPDX-License-Identifier: GPL-2.0 /* * Test soft offline behavior for HugeTLB pages: - * - if enable_soft_offline = 0, hugepages should stay intact and soft - * offlining failed with EOPNOTSUPP. - * - if enable_soft_offline = 1, a hugepage should be dissolved and - * nr_hugepages/free_hugepages should be reduced by 1. + * + * - if enable_soft_offline = 0 (SOFT_OFFLINE_DISABLED), HugeTLB pages + * should stay intact and soft offlining failed with EOPNOTSUPP. + * + * - if enable_soft_offline = 1 (SOFT_OFFLINE_ENABLED_SKIP_HUGETLB), HugeTLB pages + * should stay intact and soft offlining failed with EOPNOTSUPP. + * + * - if enable_soft_offline = 2 (SOFT_OFFLINE_ENABLED), a HugeTLB page should be + * dissolved and nr_hugepages/free_hugepages should be reduced by 1. * * Before running, make sure more than 2 hugepages of default_hugepagesz * are allocated. For example, if /proc/meminfo/Hugepagesize is 2048kB: @@ -32,6 +37,12 @@ #define EPREFIX " !!! " +enum soft_offline { + SOFT_OFFLINE_DISABLED = 0, + SOFT_OFFLINE_ENABLED_SKIP_HUGETLB, + SOFT_OFFLINE_ENABLED +}; + static int do_soft_offline(int fd, size_t len, int expect_errno) { char *filemap = NULL; @@ -83,7 +94,7 @@ static int set_enable_soft_offline(int value) char cmd[256] = {0}; FILE *cmdfile = NULL; - if (value != 0 && value != 1) + if (value < SOFT_OFFLINE_DISABLED || value > SOFT_OFFLINE_ENABLED) return -EINVAL; sprintf(cmd, "echo %d > /proc/sys/vm/enable_soft_offline", value); @@ -155,7 +166,7 @@ static int create_hugetlbfs_file(struct statfs *file_stat) static void test_soft_offline_common(int enable_soft_offline) { int fd; - int expect_errno = enable_soft_offline ? 0 : EOPNOTSUPP; + int expect_errno = (enable_soft_offline == SOFT_OFFLINE_ENABLED) ? 0 : EOPNOTSUPP; struct statfs file_stat; unsigned long hugepagesize_kb = 0; unsigned long nr_hugepages_before = 0; @@ -198,7 +209,7 @@ static void test_soft_offline_common(int enable_soft_offline) // No need for the hugetlbfs file from now on. close(fd); - if (enable_soft_offline) { + if (enable_soft_offline == SOFT_OFFLINE_ENABLED) { if (nr_hugepages_before != nr_hugepages_after + 1) { ksft_test_result_fail("MADV_SOFT_OFFLINE should reduced 1 hugepage\n"); return; @@ -219,10 +230,11 @@ static void test_soft_offline_common(int enable_soft_offline) int main(int argc, char **argv) { ksft_print_header(); - ksft_set_plan(2); + ksft_set_plan(3); - test_soft_offline_common(1); - test_soft_offline_common(0); + test_soft_offline_common(SOFT_OFFLINE_ENABLED); + test_soft_offline_common(SOFT_OFFLINE_ENABLED_SKIP_HUGETLB); + test_soft_offline_common(SOFT_OFFLINE_DISABLED); ksft_finished(); } -- 2.51.0

3 days, 17 hours

5
9
0 0

[PATCH] selftests/mm: centralize the __always_unused macro

by Muhammad Usama Anjum

This macro gets used in different tests. Add it to kselftest.h which is central location and tests use this header. Then use this new macro. Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/kselftest.h | 4 ++++ tools/testing/selftests/mm/protection_keys.c | 2 +- tools/testing/selftests/net/ovpn/ovpn-cli.c | 3 ++- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 661d31c4b558c..274480e3573ab 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -92,6 +92,10 @@ #endif #define __printf(a, b) __attribute__((format(printf, a, b))) +#ifndef __always_unused +#define __always_unused __attribute__((__unused__)) +#endif + #ifndef __maybe_unused #define __maybe_unused __attribute__((__unused__)) #endif diff --git a/tools/testing/selftests/mm/protection_keys.c b/tools/testing/selftests/mm/protection_keys.c index 6281d4c61b50e..2085982dba696 100644 --- a/tools/testing/selftests/mm/protection_keys.c +++ b/tools/testing/selftests/mm/protection_keys.c @@ -1302,7 +1302,7 @@ static void test_mprotect_with_pkey_0(int *ptr, u16 pkey) static void test_ptrace_of_child(int *ptr, u16 pkey) { - __attribute__((__unused__)) int peek_result; + __always_unused int peek_result; pid_t child_pid; void *ignored = 0; long ret; diff --git a/tools/testing/selftests/net/ovpn/ovpn-cli.c b/tools/testing/selftests/net/ovpn/ovpn-cli.c index 9201f2905f2ce..688a5fa6fdacd 100644 --- a/tools/testing/selftests/net/ovpn/ovpn-cli.c +++ b/tools/testing/selftests/net/ovpn/ovpn-cli.c @@ -32,9 +32,10 @@ #include <sys/socket.h> +#include "../../kselftest.h" + /* defines to make checkpatch happy */ #define strscpy strncpy -#define __always_unused __attribute__((__unused__)) /* libnl < 3.5.0 does not set the NLA_F_NESTED on its own, therefore we * have to explicitly do it to prevent the kernel from failing upon -- 2.47.3

3 days, 19 hours

2
1
0 0

[PATCH v3 0/3] Fix va_high_addr_switch.sh test failure

by Chunyu Hu

The three patches fix the va_high_addr_switch.sh test failure on x86_64. Patch 1 fixes the hugepage setup issue that nr_hugepages is reset too early in run_vmtests.sh and break the later va_high_addr_switch testing. Patch 2 adds hugepage setup in va_high_addr_switch test, so that it can still work if vm_runtests.sh changes the hugepage setup someday. Patch 3 fixes the test failure caused by the hint addr align method change in hugetlb_get_unmapped_area(). Changes in v3: - patch 1 adds the Acked-by from David - patch 3 changes the mmap hint addr to hugepage aligned from page aligned Changes in v2: - patch 1 renames nr_hugepgs_origin to orig_nr_hugepgs - add a patch 2 to setup hugeapges in va_high_addr_switch test Chunyu Hu (3): selftests/mm: fix hugepages cleanup too early selftests/mm: alloc hugepages in va_high_addr_switch test selftests/mm: fix va_high_addr_switch.sh failure on x86_64 tools/testing/selftests/mm/run_vmtests.sh | 9 ++++- .../selftests/mm/va_high_addr_switch.c | 4 +- .../selftests/mm/va_high_addr_switch.sh | 37 +++++++++++++++++++ 3 files changed, 46 insertions(+), 4 deletions(-) -- 2.49.0

3 days, 20 hours

2
4
0 0

[PATCH] mm: transhuge-stress: fix potential memory leak on realloc failure

by Haofeng Li

From: Haofeng Li <lihaofeng(a)kylinos.cn> When realloc() fails in transhuge-stress test, the original code exits immediately without freeing the previously allocated memory, causing a memory leak. This patch introduces a temporary pointer to hold the realloc result, ensuring proper cleanup by freeing the original map before exiting on allocation failure. Signed-off-by: Haofeng Li <lihaofeng(a)kylinos.cn> --- tools/testing/selftests/mm/transhuge-stress.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/transhuge-stress.c b/tools/testing/selftests/mm/transhuge-stress.c index 68201192e37c..cbe86c5b8de0 100644 --- a/tools/testing/selftests/mm/transhuge-stress.c +++ b/tools/testing/selftests/mm/transhuge-stress.c @@ -30,7 +30,7 @@ int main(int argc, char **argv) int i = 0; char *name = NULL; double s; - uint8_t *map; + uint8_t *map, *map_tmp; size_t map_len; int pagemap_fd; int duration = 0; @@ -107,9 +107,12 @@ int main(int argc, char **argv) nr_succeed++; if (idx >= map_len) { - map = realloc(map, idx + 1); - if (!map) + map_tmp = realloc(map, idx + 1); + if (!map_tmp) { + free(map); ksft_exit_fail_msg("map realloc\n"); + } + map = map_tmp; memset(map + map_len, 0, idx + 1 - map_len); map_len = idx + 1; } -- 2.25.1

3 days, 21 hours

2
3
0 0

New September Order. 93035 Friday, September 12, 2025 at 12:16:14 PM

by Info - Albinayah 868

Hi Linux-kselftest, Please provide a quote for your products: Include: 1.Pricing (per unit) 2.Delivery cost & timeline 3.Quote expiry date Deadline: September Thanks! Kamal Prasad Albinayah Trading

3 days, 22 hours

1
0
0 0

[PATCH 00/32] ns: support file handles

by Christian Brauner

For a while now we have supported file handles for pidfds. This has proven to be very useful. Extend the concept to cover namespaces as well. After this patchset it is possible to encode and decode namespace file handles using the commong name_to_handle_at() and open_by_handle_at() apis. Namespaces file descriptors can already be derived from pidfds which means they aren't subject to overmount protection bugs. IOW, it's irrelevant if the caller would not have access to an appropriate /proc/<pid>/ns/ directory as they could always just derive the namespace based on a pidfd already. It has the same advantage as pidfds. It's possible to reliably and for the lifetime of the system refer to a namespace without pinning any resources and to compare them. Permission checking is kept simple. If the caller is located in the namespace the file handle refers to they are able to open it otherwise they must hold privilege over the owning namespace of the relevant namespace. Both the network namespace and the mount namespace already have an associated cookie that isn't recycled and is fully exposed to userspace. Move this into ns_common and use the same id space for all namespaces so they can trivially and reliably be compared. There's more coming based on the iterator infrastructure but the series is large enough and focuses on file handles. Extensive selftests included. I still have various other test-suites to run but it holds up so far. Signed-off-by: Christian Brauner <brauner(a)kernel.org> --- Christian Brauner (32): pidfs: validate extensible ioctls nsfs: validate extensible ioctls block: use extensible_ioctl_valid() ns: move to_ns_common() to ns_common.h nsfs: add nsfs.h header ns: uniformly initialize ns_common mnt: use ns_common_init() ipc: use ns_common_init() cgroup: use ns_common_init() pid: use ns_common_init() time: use ns_common_init() uts: use ns_common_init() user: use ns_common_init() net: use ns_common_init() ns: remove ns_alloc_inum() nstree: make iterator generic mnt: support iterator cgroup: support iterator ipc: support iterator net: support iterator pid: support iterator time: support iterator userns: support iterator uts: support iterator ns: add to_<type>_ns() to respective headers nsfs: add current_in_namespace() nsfs: support file handles nsfs: support exhaustive file handles nsfs: add missing id retrieval support tools: update nsfs.h uapi header selftests/namespaces: add identifier selftests selftests/namespaces: add file handle selftests block/blk-integrity.c | 8 +- fs/fhandle.c | 6 + fs/internal.h | 1 + fs/mount.h | 10 +- fs/namespace.c | 156 +-- fs/nsfs.c | 266 +++- fs/pidfs.c | 2 +- include/linux/cgroup.h | 5 + include/linux/exportfs.h | 6 + include/linux/fs.h | 14 + include/linux/ipc_namespace.h | 5 + include/linux/ns_common.h | 29 + include/linux/nsfs.h | 40 + include/linux/nsproxy.h | 11 - include/linux/nstree.h | 89 ++ include/linux/pid_namespace.h | 5 + include/linux/proc_ns.h | 32 +- include/linux/time_namespace.h | 9 + include/linux/user_namespace.h | 5 + include/linux/utsname.h | 5 + include/net/net_namespace.h | 6 + include/uapi/linux/fcntl.h | 1 + include/uapi/linux/nsfs.h | 12 +- init/main.c | 2 + ipc/msgutil.c | 1 + ipc/namespace.c | 12 +- ipc/shm.c | 2 + kernel/Makefile | 2 +- kernel/cgroup/cgroup.c | 2 + kernel/cgroup/namespace.c | 24 +- kernel/nstree.c | 233 ++++ kernel/pid_namespace.c | 13 +- kernel/time/namespace.c | 23 +- kernel/user_namespace.c | 17 +- kernel/utsname.c | 28 +- net/core/net_namespace.c | 59 +- tools/include/uapi/linux/nsfs.h | 23 +- tools/testing/selftests/namespaces/.gitignore | 2 + tools/testing/selftests/namespaces/Makefile | 7 + tools/testing/selftests/namespaces/config | 7 + .../selftests/namespaces/file_handle_test.c | 1410 ++++++++++++++++++++ tools/testing/selftests/namespaces/nsid_test.c | 986 ++++++++++++++ 42 files changed, 3306 insertions(+), 270 deletions(-) --- base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585 change-id: 20250905-work-namespace-c68826dda0d4

3 days, 23 hours

10
72
0 0

[PATCHv3 net-next 0/5] net: common feature compute for upper interface

by Hangbin Liu

Some high-level virtual drivers need to compute features from their lower devices, but each currently has its own implementation and may miss some feature computations. This patch set introduces a common function to compute features for such devices. Currently, bonding, team, and bridge have been updated to use the new helper. v3: a) fix hw_enc_features asign order (Sabrina Dubroca) b) set virtual dev feature defination in netdev_features.h (Jakub Kicinski) c) remove unneeded err in team_del_slave (Stanislav Fomichev) d) remove NETIF_F_HW_ESP test as it needs to be test with GSO pkts (Sabrina Dubroca) v2: a) remove hard_header_len setting. I will set needed_headroom for bond/team in a separate patch as bridge has it's own ways. (Ido Schimmel) b) Add test file to Makefile, set RET=0 to a proper location. (Ido Schimmel) Hangbin Liu (5): net: add a common function to compute features from lowers devices bonding: use common function to compute the features team: use common function to compute the features net: bridge: use common function to compute the features selftests/net: add offload checking test for virtual interface drivers/net/bonding/bond_main.c | 99 +------------- drivers/net/team/team_core.c | 78 +---------- include/linux/netdev_features.h | 18 +++ include/linux/netdevice.h | 1 + net/bridge/br_if.c | 22 +--- net/core/dev.c | 76 +++++++++++ tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/vdev_offload.sh | 137 ++++++++++++++++++++ 9 files changed, 246 insertions(+), 187 deletions(-) create mode 100755 tools/testing/selftests/net/vdev_offload.sh -- 2.50.1

4 days, 2 hours

4
11
0 0

[PATCH bpf-next v3 0/4] powerpc64/bpf: Add support for bpf arena and arena atomics

by Saket Kumar Bhaskar

This patch series introduces support for the PROBE_MEM32, bpf_addr_space_cast and PROBE_ATOMIC instructions in the powerpc BPF JIT, facilitating the implementation of BPF arena and arena atomics. All selftests related to bpf_arena, bpf_arena_atomic(except load_acquire/store_release) enablement are passing: # ./test_progs -t arena_list #5/1 arena_list/arena_list_1:OK #5/2 arena_list/arena_list_1000:OK #5 arena_list:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t arena_htab #4/1 arena_htab/arena_htab_llvm:OK #4/2 arena_htab/arena_htab_asm:OK #4 arena_htab:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t verifier_arena #464/1 verifier_arena/basic_alloc1:OK #464/2 verifier_arena/basic_alloc2:OK #464/3 verifier_arena/basic_alloc3:OK #464/4 verifier_arena/iter_maps1:OK #464/5 verifier_arena/iter_maps2:OK #464/6 verifier_arena/iter_maps3:OK #464 verifier_arena:OK #465/1 verifier_arena_large/big_alloc1:OK #465/2 verifier_arena_large/big_alloc2:OK #465 verifier_arena_large:OK Summary: 2/8 PASSED, 0 SKIPPED, 0 FAILED # ./test_progs -t arena_atomics #3/1 arena_atomics/add:OK #3/2 arena_atomics/sub:OK #3/3 arena_atomics/and:OK #3/4 arena_atomics/or:OK #3/5 arena_atomics/xor:OK #3/6 arena_atomics/cmpxchg:OK #3/7 arena_atomics/xchg:OK #3/8 arena_atomics/uaf:OK #3/9 arena_atomics/load_acquire:SKIP #3/10 arena_atomics/store_release:SKIP #3 arena_atomics:OK (SKIP: 2/10) Summary: 1/8 PASSED, 2 SKIPPED, 0 FAILED Changes since v2: * Dropped arena_spin_lock selftest fix patch from the patchset as it has to go via bpf-next while these changes will go via powerpc tree. v2:https://lore.kernel.org/all/20250829165135.1273071-1-skb99@linux.ibm.com/ Changes since v1: Addressed comments from Chris: * Squashed introduction of bpf_jit_emit_probe_mem_store() and its usage in one patch. * Defined and used PPC_RAW_RLDICL_DOT to avoid the CMPDI. * Removed conditional statement for fixup[0] = PPC_RAW_LI(dst_reg, 0); * Indicated this change is limited to powerpc64 in subject. Addressed comments from Alexei: * Removed skel->rodata->nr_cpus = get_nprocs() and its usage to get currently online cpus(as it needs to be updated from userspace). Addressed comments from Hari: * Updated the bpf jit stack layout and associated macros to accommodate new NVR. v1:https://lore.kernel.org/all/20250805062747.3479221-1-skb99@linux.ibm.com/ Saket Kumar Bhaskar (4): powerpc64/bpf: Implement PROBE_MEM32 pseudo instructions powerpc64/bpf: Implement bpf_addr_space_cast instruction powerpc64/bpf: Introduce bpf_jit_emit_atomic_ops() to emit atomic instructions powerpc64/bpf: Implement PROBE_ATOMIC instructions arch/powerpc/include/asm/ppc-opcode.h | 1 + arch/powerpc/net/bpf_jit.h | 6 +- arch/powerpc/net/bpf_jit_comp.c | 32 +- arch/powerpc/net/bpf_jit_comp32.c | 2 +- arch/powerpc/net/bpf_jit_comp64.c | 401 +++++++++++++++++++------- 5 files changed, 330 insertions(+), 112 deletions(-) -- 2.43.5

4 days, 5 hours

2
5
0 0

2025

2024

2023

2022

2021

2020

2019

2018

2017

Linux-kselftest-mirror