December 2023 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 v4 00/17] arm32/arm64/x86_64: Support basic functions of kernel livepatch
by Zheng Yejian 08 Dec '23

08 Dec '23

Port patches from v5.10 to support basic functions of kernel livepatch on arch arm32/arm64/x86_64. Zheng Yejian (17): livepatch/core: Allow implementation without ftrace livepatch/core: Reuse common codes in the solution without ftrace Revert "x86/insn: Make insn_complete() static" livepatch/x86: Support livepatch without ftrace livepatch/core: Restrict livepatch patched/unpatched when plant kprobe livepatch/core: Support load and unload hooks livepatch: samples: Adapt livepatch-sample for solution without ftrace livepatch/core: Support jump_label livepatch: Fix crash when access the global variable in hook livepatch: Fix patching functions which have static_call livepatch/core: Avoid conflict with static {call,key} livepatch/arm64: Support livepatch without ftrace livepatch/core: Revert module_enable_ro and module_disable_ro livepatch: Enable livepatch configs in openeuler_defconfig arm/module: Use plt section indices for relocations livepatch/core: Add support for arm for klp relocation livepatch/arm: Support livepatch without ftrace Documentation/filesystems/proc.rst | 2 +- arch/arm/Kconfig | 3 + arch/arm/include/asm/livepatch.h | 51 + arch/arm/include/asm/module.h | 4 +- arch/arm/kernel/Makefile | 1 + arch/arm/kernel/ftrace.c | 4 +- arch/arm/kernel/livepatch.c | 256 ++++ arch/arm/kernel/module-plts.c | 22 +- arch/arm/kernel/module.c | 4 +- arch/arm64/Kconfig | 3 + arch/arm64/configs/openeuler_defconfig | 12 + arch/arm64/include/asm/livepatch.h | 48 + arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/livepatch.c | 225 ++++ arch/powerpc/Kconfig | 4 +- arch/s390/Kconfig | 2 +- arch/s390/configs/debug_defconfig | 1 + arch/s390/configs/defconfig | 1 + arch/x86/Kconfig | 3 +- arch/x86/configs/openeuler_defconfig | 12 +- arch/x86/include/asm/insn.h | 7 + arch/x86/include/asm/livepatch.h | 33 + arch/x86/kernel/Makefile | 1 + arch/x86/kernel/livepatch.c | 289 +++++ arch/x86/kernel/module.c | 2 +- arch/x86/lib/insn.c | 7 - include/linux/jump_label.h | 10 + include/linux/livepatch.h | 97 +- include/linux/livepatch_sched.h | 6 +- include/linux/module.h | 33 + include/linux/moduleloader.h | 4 +- include/linux/static_call.h | 6 + kernel/jump_label.c | 22 + kernel/livepatch/Kconfig | 78 +- kernel/livepatch/Makefile | 3 +- kernel/livepatch/core.c | 1245 +++++++++++++++++++- kernel/livepatch/core.h | 4 + kernel/module/main.c | 10 +- kernel/module/strict_rwx.c | 17 + kernel/static_call_inline.c | 20 + lib/Kconfig.debug | 2 +- samples/livepatch/Makefile | 2 + samples/livepatch/livepatch-sample.c | 36 + tools/arch/x86/include/asm/insn.h | 7 + tools/arch/x86/lib/insn.c | 7 - tools/testing/selftests/bpf/config.aarch64 | 1 + tools/testing/selftests/bpf/config.s390x | 1 + tools/testing/selftests/livepatch/README | 1 + tools/testing/selftests/livepatch/config | 1 + 49 files changed, 2555 insertions(+), 56 deletions(-) create mode 100644 arch/arm/include/asm/livepatch.h create mode 100644 arch/arm/kernel/livepatch.c create mode 100644 arch/arm64/include/asm/livepatch.h create mode 100644 arch/arm64/kernel/livepatch.c create mode 100644 arch/x86/include/asm/livepatch.h create mode 100644 arch/x86/kernel/livepatch.c -- 2.25.1

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[PATCH v3 OLK-5.10 0/2] Fixed some memory leak issues of the Perf tool
by Junhao He 08 Dec '23

08 Dec '23

Fixed some memory leak issues of the Perf record of ptt: a) ptt: Fix memory leak in lseek failure handling b) ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() Kuan-Wei Chiu (1): perf hisi-ptt: Fix memory leak in lseek failure handling Yicong Yang (1): perf hisi-ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() tools/perf/util/hisi-ptt.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.33.0

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[PATCH OLK-6.6 v3 0/4] add redis sockmap sample code
by Zhengchao Shao 08 Dec '23

08 Dec '23

add redis sockmap sample code. Liu Jian (4): cgroup: make cgroup_bpf_prog_attach work when cgroup2 is not mounted net: let sockops can use bpf_get_current_comm() net: add local_skb parameter to identify local tcp connection tools: add sample sockmap code for redis include/linux/cgroup.h | 1 + include/linux/filter.h | 3 + include/linux/skbuff.h | 5 + include/uapi/linux/bpf.h | 1 + kernel/bpf/cgroup.c | 8 +- kernel/cgroup/cgroup.c | 24 +++ net/Kconfig | 5 + net/core/filter.c | 13 ++ net/ipv4/tcp_input.c | 6 +- net/ipv4/tcp_output.c | 9 + tools/include/uapi/linux/bpf.h | 1 + tools/netacc/Makefile | 24 +++ tools/netacc/bpf_sockmap.h | 167 +++++++++++++++++++ tools/netacc/net-acc | 35 ++++ tools/netacc/netacc.c | 296 +++++++++++++++++++++++++++++++++ tools/netacc/netaccsockmap.c | 176 ++++++++++++++++++++ 16 files changed, 769 insertions(+), 5 deletions(-) create mode 100644 tools/netacc/Makefile create mode 100644 tools/netacc/bpf_sockmap.h create mode 100755 tools/netacc/net-acc create mode 100644 tools/netacc/netacc.c create mode 100644 tools/netacc/netaccsockmap.c -- 2.34.1

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[PATCH OLK-6.6 v3 0/4] add redis sockmap sample code
by Zhengchao Shao 08 Dec '23

08 Dec '23

add redis sockmap sample code. Liu Jian (4): cgroup: make cgroup_bpf_prog_attach work when cgroup2 is not mounted net: let sockops can use bpf_get_current_comm() net: add local_skb parameter to identify local tcp connection tools: add sample sockmap code for redis include/linux/cgroup.h | 1 + include/linux/filter.h | 3 + include/linux/skbuff.h | 5 + include/uapi/linux/bpf.h | 1 + kernel/bpf/cgroup.c | 8 +- kernel/cgroup/cgroup.c | 24 +++ net/Kconfig | 5 + net/core/filter.c | 13 ++ net/ipv4/tcp_input.c | 6 +- net/ipv4/tcp_output.c | 9 + tools/include/uapi/linux/bpf.h | 1 + tools/netacc/Makefile | 24 +++ tools/netacc/bpf_sockmap.h | 167 +++++++++++++++++++ tools/netacc/net-acc | 35 ++++ tools/netacc/netacc.c | 296 +++++++++++++++++++++++++++++++++ tools/netacc/netaccsockmap.c | 176 ++++++++++++++++++++ 16 files changed, 769 insertions(+), 5 deletions(-) create mode 100644 tools/netacc/Makefile create mode 100644 tools/netacc/bpf_sockmap.h create mode 100755 tools/netacc/net-acc create mode 100644 tools/netacc/netacc.c create mode 100644 tools/netacc/netaccsockmap.c -- 2.34.1

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[PATCH openEuler-1.0-LTS v3 0/2] LTS patch backport
by Dong Chenchen 08 Dec '23

08 Dec '23

Dong Chenchen (1): net: fix kabi broken in struct netns_xfrm Eric Dumazet (1): xfrm: fix a data-race in xfrm_gen_index() include/net/netns/xfrm.h | 3 +++ net/xfrm/xfrm_policy.c | 6 ++---- 2 files changed, 5 insertions(+), 4 deletions(-) -- 2.25.1

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[PATCH OLK-6.6 0/7]arm64: add machine check safe support
by Tong Tiangen 08 Dec '23

08 Dec '23

With the increase of memory capacity and density, the probability of memory error also increases. The increasing size and density of server RAM in data centers and clouds have shown increased uncorrectable memory errors. Currently, the kernel has mechanism to recover from hardware memory errors. This patchset provides a new recovery mechanism. For arm64, the hardware memory error handling in do_sea(), which is divided into two cases: 1. If the user state consumed the memory errors, the solution is to kill the user process and isolate the error page. 2. If the kernel state consumed the memory errors, the solution is to panic. For case 2, Undifferentiated panic may not be the optimal choice, as it can be handled better. In some scenarios, we can avoid panic, such as uaccess, if the uaccess fails due to memory error, only the user process will be affected, killing the user process and isolating the user page with hardware memory errors is a better choice. Tong Tiangen (7): uaccess: add generic fallback version of copy_mc_to_user() arm64: add support for machine check error safe arm64: add uaccess to machine check safe mm/hwpoison: return -EFAULT when copy fail in copy_mc_[user]_highpage() arm64: support copy_mc_[user]_highpage() arm64: introduce copy_mc_to_kernel() implementation arm64: add machine check safe sysctl interface Documentation/admin-guide/sysctl/kernel.rst | 14 ++ arch/arm64/Kconfig | 1 + arch/arm64/include/asm/asm-extable.h | 15 ++ arch/arm64/include/asm/assembler.h | 4 + arch/arm64/include/asm/extable.h | 1 + arch/arm64/include/asm/mte.h | 5 + arch/arm64/include/asm/page.h | 10 + arch/arm64/include/asm/string.h | 5 + arch/arm64/include/asm/uaccess.h | 21 ++ arch/arm64/lib/Makefile | 4 +- arch/arm64/lib/copy_from_user.S | 10 +- arch/arm64/lib/copy_mc_page.S | 89 +++++++ arch/arm64/lib/copy_to_user.S | 10 +- arch/arm64/lib/memcpy_mc.S | 257 ++++++++++++++++++++ arch/arm64/lib/mte.S | 27 ++ arch/arm64/mm/copypage.c | 66 ++++- arch/arm64/mm/extable.c | 21 +- arch/arm64/mm/fault.c | 58 ++++- arch/powerpc/include/asm/uaccess.h | 1 + arch/x86/include/asm/uaccess.h | 1 + include/linux/highmem.h | 16 +- include/linux/uaccess.h | 9 + mm/kasan/shadow.c | 12 + mm/khugepaged.c | 4 +- 24 files changed, 635 insertions(+), 26 deletions(-) create mode 100644 arch/arm64/lib/copy_mc_page.S create mode 100644 arch/arm64/lib/memcpy_mc.S -- 2.25.1

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[PATCH OLK-6.6 v3 0/4] add redis sockmap sample code
by Zhengchao Shao 07 Dec '23

07 Dec '23

add redis sockmap sample code. Liu Jian (4): cgroup: make cgroup_bpf_prog_attach work when cgroup2 is not mounted net: let sockops can use bpf_get_current_comm() net: add local_skb parameter to identify local tcp connection tools: add sample sockmap code for redis include/linux/cgroup.h | 1 + include/linux/filter.h | 3 + include/linux/skbuff.h | 5 + include/uapi/linux/bpf.h | 1 + kernel/bpf/cgroup.c | 8 +- kernel/cgroup/cgroup.c | 24 +++ net/Kconfig | 5 + net/core/filter.c | 13 ++ net/ipv4/tcp_input.c | 6 +- net/ipv4/tcp_output.c | 9 + tools/include/uapi/linux/bpf.h | 1 + tools/netacc/Makefile | 24 +++ tools/netacc/bpf_sockmap.h | 167 +++++++++++++++++++ tools/netacc/net-acc | 35 ++++ tools/netacc/netacc.c | 296 +++++++++++++++++++++++++++++++++ tools/netacc/netaccsockmap.c | 176 ++++++++++++++++++++ 16 files changed, 769 insertions(+), 5 deletions(-) create mode 100644 tools/netacc/Makefile create mode 100644 tools/netacc/bpf_sockmap.h create mode 100755 tools/netacc/net-acc create mode 100644 tools/netacc/netacc.c create mode 100644 tools/netacc/netaccsockmap.c -- 2.34.1

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[PATCH openEuler-1.0-LTS v2 0/2] LTS patch backport
by Dong Chenchen 07 Dec '23

07 Dec '23

Dong Chenchen (1): net: fix kabi broken in struct netns_xfrm Eric Dumazet (1): xfrm: fix a data-race in xfrm_gen_index() include/net/netns/xfrm.h | 3 +++ net/xfrm/xfrm_policy.c | 6 ++---- 2 files changed, 5 insertions(+), 4 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/2] LTS patch backport
by Dong Chenchen 07 Dec '23

07 Dec '23

Dong Chenchen (1): net: fix kabi broken in struct netns_xfrm Eric Dumazet (1): xfrm: fix a data-race in xfrm_gen_index() include/net/netns/xfrm.h | 1 + net/xfrm/xfrm_policy.c | 6 ++---- 2 files changed, 3 insertions(+), 4 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS v3 00/20] linux-4.19.y inclusion
by Zhang Changzhong 07 Dec '23

07 Dec '23

v2->v3: drop "xfrm: fix a data-race in xfrm_gen_index()" to avoid kabi changes v1->v2: remove redundant patches Chen Yu (1): genirq/matrix: Exclude managed interrupts in irq_matrix_allocated() Christophe JAILLET (1): ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() Eric Dumazet (4): tcp: tsq: relax tcp_small_queue_check() when rtx queue contains a single skb tcp_metrics: add missing barriers on delete tcp_metrics: properly set tp->snd_ssthresh in tcp_init_metrics() tcp_metrics: do not create an entry from tcp_init_metrics() Gou Hao (1): ext4: move 'ix' sanity check to corrent position Jan Kara (1): quota: Fix slow quotaoff Jeff Layton (1): overlayfs: set ctime when setting mtime and atime Jorge Sanjuan Garcia (1): mcb: remove is_added flag from mcb_device struct Kuniyuki Iwashima (1): dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. Marc Kleine-Budde (3): can: dev: move driver related infrastructure into separate subdir can: dev: can_restart(): don't crash kernel if carrier is OK can: dev: can_restart(): fix race condition between controller restart and netif_carrier_on() Michal Koutný (1): cgroup: Remove duplicates in cgroup v1 tasks file Neal Cardwell (1): tcp: fix excessive TLP and RACK timeouts from HZ rounding Peter Zijlstra (1): sched,idle,rcu: Push rcu_idle deeper into the idle path Reuben Hawkins (1): vfs: fix readahead(2) on block devices Sunil V L (1): ACPI: irq: Fix incorrect return value in acpi_register_gsi() Yan Zhai (1): ipv6: avoid atomic fragment on GSO packets drivers/acpi/device_sysfs.c | 10 ++-- drivers/acpi/irq.c | 7 ++- drivers/cpuidle/cpuidle.c | 12 +++-- drivers/mcb/mcb-core.c | 10 ++-- drivers/mcb/mcb-parse.c | 2 - drivers/net/can/Makefile | 7 +-- drivers/net/can/dev/Makefile | 7 +++ drivers/net/can/{ => dev}/dev.c | 10 ++-- drivers/net/can/{ => dev}/rx-offload.c | 0 fs/ext4/extents.c | 10 ++-- fs/overlayfs/copy_up.c | 2 +- fs/quota/dquot.c | 66 +++++++++++++++----------- include/linux/mcb.h | 1 - include/linux/quota.h | 4 +- include/linux/quotaops.h | 2 +- include/net/tcp.h | 3 ++ kernel/cgroup/cgroup-v1.c | 5 +- kernel/irq/matrix.c | 6 +-- kernel/sched/idle.c | 22 ++++----- mm/readahead.c | 3 +- net/dccp/ipv6.c | 6 +-- net/ipv4/tcp_metrics.c | 15 +++--- net/ipv4/tcp_output.c | 25 +++++++--- net/ipv4/tcp_recovery.c | 2 +- net/ipv6/ip6_output.c | 8 +++- net/ipv6/syncookies.c | 7 +-- 26 files changed, 145 insertions(+), 107 deletions(-) create mode 100644 drivers/net/can/dev/Makefile rename drivers/net/can/{ => dev}/dev.c (99%) rename drivers/net/can/{ => dev}/rx-offload.c (100%) -- 2.34.1

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