December 2023 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 v4 0/7] Ascend features
by Yuan Can 11 Dec '23

11 Dec '23

Jian Zhang (1): memcontrol: Add oom recover for kmemcg when release buddy hugepage Navid Emamdoost (1): nbd_genl_status: null check for nla_nest_start Weilong Chen (2): ACPI / APEI: Notify all ras err to driver arm64/ascend: Add new enable_oom_killer interface for oom contrl Xu Qiang (2): irq-gic-v3: Add support to init ts core GICR irq-gic-v3-its: It can't be initialized when the GICR had been cut Yuan Can (1): ascend: export interfaces required by ascend drivers arch/arm64/configs/openeuler_defconfig | 1 + drivers/acpi/apei/Kconfig | 7 + drivers/acpi/apei/ghes.c | 8 +- drivers/block/nbd.c | 6 + drivers/irqchip/Kconfig | 10 + drivers/irqchip/irq-gic-v3-its.c | 254 ++++++++++++++++++++++++- drivers/irqchip/irq-gic-v3.c | 101 +++++++++- include/linux/irqchip/arm-gic-v3.h | 5 + include/linux/oom.h | 26 +++ kernel/power/autosleep.c | 1 + kernel/workqueue.c | 3 + mm/Kconfig | 10 + mm/memcontrol.c | 14 ++ mm/oom_kill.c | 58 ++++++ mm/util.c | 2 + mm/vmalloc.c | 2 + 16 files changed, 499 insertions(+), 9 deletions(-) -- 2.17.1

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[PATCH OLK-6.6 0/4] backport nbd bugfix patch
by Li Nan 11 Dec '23

11 Dec '23

Li Nan (4): nbd: fold nbd config initialization into nbd_alloc_config() nbd: factor out a helper to get nbd_config without holding 'config_lock' nbd: fix null-ptr-dereference while accessing 'nbd->config' nbd: pass nbd_sock to nbd_read_reply() instead of index drivers/block/nbd.c | 117 ++++++++++++++++++++++++++++---------------- 1 file changed, 75 insertions(+), 42 deletions(-) -- 2.39.2

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[PATCH OLK-6.6] cgroup: Support iocost for cgroup v1
by Li Nan 11 Dec '23

11 Dec '23

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8ND38 --------------------------- Since iocost can only be used in cgroup v2, add it to v1 now. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 089fcb9cfce3..d0bdb286632f 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -3490,6 +3490,28 @@ static ssize_t ioc_cost_model_write(struct kernfs_open_file *of, char *input, return ret; } +static struct cftype ioc_legacy_files[] = { + { + .name = "cost.weight", + .flags = CFTYPE_NOT_ON_ROOT, + .seq_show = ioc_weight_show, + .write = ioc_weight_write, + }, + { + .name = "cost.qos", + .flags = CFTYPE_ONLY_ON_ROOT, + .seq_show = ioc_qos_show, + .write = ioc_qos_write, + }, + { + .name = "cost.model", + .flags = CFTYPE_ONLY_ON_ROOT, + .seq_show = ioc_cost_model_show, + .write = ioc_cost_model_write, + }, + {} +}; + static struct cftype ioc_files[] = { { .name = "weight", @@ -3514,6 +3536,7 @@ static struct cftype ioc_files[] = { static struct blkcg_policy blkcg_policy_iocost = { .dfl_cftypes = ioc_files, + .legacy_cftypes = ioc_legacy_files, .cpd_alloc_fn = ioc_cpd_alloc, .cpd_free_fn = ioc_cpd_free, .pd_alloc_fn = ioc_pd_alloc, -- 2.39.2

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[PATCH OLK-6.6 v2 0/1] Add config isolation for random initialization optimization
by GUO Zihua 11 Dec '23

11 Dec '23

This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.34.1

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[PATCH OLK-6.6 0/3] cgroup v1 writeback enable
by chenridong 11 Dec '23

11 Dec '23

Lu Jialin (3): cgroup: Add cgroup1_get_from_id() cgroup: support cgroup writeback on cgroupv1 openeuler_defconfig: enable CONFIG_CGROUP_V1_WRITEBACK in openeuler_defconfig for x86 and arm64 arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + block/blk-cgroup.c | 3 + block/blk-cgroup.h | 3 + include/linux/backing-dev.h | 29 +++++- include/linux/cgroup-defs.h | 2 + include/linux/cgroup.h | 3 + include/linux/memcontrol.h | 5 ++ init/Kconfig | 5 ++ kernel/cgroup/cgroup.c | 46 +++++++++- mm/backing-dev.c | 117 ++++++++++++++++++++++++- mm/memcontrol.c | 83 +++++++++++++++++- 12 files changed, 289 insertions(+), 9 deletions(-) -- 2.34.1

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[PATCH OLK-6.6 0/1] Add config isolation for random initialization optimization
by GUO Zihua 11 Dec '23

11 Dec '23

This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.34.1

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[PATCH OLK-6.6 v3 0/7] support userswap feature
by Peng Zhang 11 Dec '23

11 Dec '23

From: ZhangPeng <zhangpeng362(a)huawei.com> This patch series support userswap feature including registration, unregistration, swap-out and swap-in. Userswap feature depends on CONFIG_USERSWAP and can be enabled by cmdline enable_userswap. We tested the concurrent scenario of multi-threaded page fault and multi-threaded swap-in in the uswap demo;and the remapping in the swap-out phase and the copy-free function in the swap-in phase were ok. During the test, related debugging functions including CONFIG_DEBUG_VM, lockdep, slub debug, kasan and kmemleak are enabled. ChangeLog: v2->v3: - update patch 7 commit v1->v2: - enable CONFIG_USERSWAP for openeuler_defconfig ZhangPeng (7): mm/userswap: add VM_USWAP and SWP_USERSWAP_ENTRY mm/userswap: add enable_userswap boot option mm/userswap: introduce MREMAP_USWAP_SET_PTE mm/userswap: support userswap via userfaultfd mm/userswap: introduce UFFDIO_COPY_MODE_DIRECT_MAP mm/userswap: provide cpu info in userfault msg mm/userswap: openeuler_defconfig: enable userswap arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/proc/task_mmu.c | 3 + fs/userfaultfd.c | 43 +- include/linux/mm.h | 8 + include/linux/swap.h | 14 +- include/linux/swapops.h | 16 + include/linux/userfaultfd_k.h | 5 + include/linux/userswap.h | 60 +++ include/trace/events/mmflags.h | 7 + include/uapi/linux/mman.h | 1 + include/uapi/linux/userfaultfd.h | 3 + mm/Kconfig | 10 + mm/Makefile | 1 + mm/memory.c | 8 + mm/mremap.c | 8 +- mm/userfaultfd.c | 12 + mm/userswap.c | 552 +++++++++++++++++++++++++ 18 files changed, 747 insertions(+), 6 deletions(-) create mode 100644 include/linux/userswap.h create mode 100644 mm/userswap.c -- 2.25.1

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[PATCH OLK-6.6 v3 0/7] support userswap feature
by Peng Zhang 11 Dec '23

11 Dec '23

From: ZhangPeng <zhangpeng362(a)huawei.com> This patch series support userswap feature including registration, unregistration, swap-out and swap-in. Userswap feature depends on CONFIG_USERSWAP and can be enabled by cmdline enable_userswap. We tested the concurrent scenario of multi-threaded page fault and multi-threaded swap-in in the uswap demo;and the remapping in the swap-out phase and the copy-free function in the swap-in phase were ok. During the test, related debugging functions including CONFIG_DEBUG_VM, lockdep, slub debug, kasan and kmemleak are enabled. ChangeLog: v2->v3: - update patch 7 commit v1->v2: - enable CONFIG_USERSWAP for openeuler_defconfig ZhangPeng (7): mm/userswap: add VM_USWAP and SWP_USERSWAP_ENTRY mm/userswap: add enable_userswap boot option mm/userswap: introduce MREMAP_USWAP_SET_PTE mm/userswap: support userswap via userfaultfd mm/userswap: introduce UFFDIO_COPY_MODE_DIRECT_MAP mm/userswap: provide cpu info in userfault msg mm/userswap: openeuler_defconfig: enable userswap arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/proc/task_mmu.c | 3 + fs/userfaultfd.c | 43 +- include/linux/mm.h | 8 + include/linux/swap.h | 14 +- include/linux/swapops.h | 16 + include/linux/userfaultfd_k.h | 5 + include/linux/userswap.h | 60 +++ include/trace/events/mmflags.h | 7 + include/uapi/linux/mman.h | 1 + include/uapi/linux/userfaultfd.h | 3 + mm/Kconfig | 10 + mm/Makefile | 1 + mm/memory.c | 8 + mm/mremap.c | 8 +- mm/userfaultfd.c | 12 + mm/userswap.c | 552 +++++++++++++++++++++++++ 18 files changed, 747 insertions(+), 6 deletions(-) create mode 100644 include/linux/userswap.h create mode 100644 mm/userswap.c -- 2.25.1

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[PATCH OLK-6.6 v2 0/7] support userswap feature
by Peng Zhang 11 Dec '23

11 Dec '23

From: ZhangPeng <zhangpeng362(a)huawei.com> This patch series support userswap feature including registration, unregistration, swap-out and swap-in. Userswap feature depends on CONFIG_USERSWAP and can be enabled by cmdline enable_userswap. We tested the concurrent scenario of multi-threaded page fault and multi-threaded swap-in in the uswap demo;and the remapping in the swap-out phase and the copy-free function in the swap-in phase were ok. During the test, related debugging functions including CONFIG_DEBUG_VM, lockdep, slub debug, kasan and kmemleak are enabled. ChangeLog: v1->v2: - enable CONFIG_USERSWAP for openeuler_defconfig ZhangPeng (7): mm/userswap: add VM_USWAP and SWP_USERSWAP_ENTRY mm/userswap: add enable_userswap boot option mm/userswap: introduce MREMAP_USWAP_SET_PTE mm/userswap: support userswap via userfaultfd mm/userswap: introduce UFFDIO_COPY_MODE_DIRECT_MAP mm/userswap: provide cpu info in userfault msg mm/userswap: openeuler_defconfig: enable userswap arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/proc/task_mmu.c | 3 + fs/userfaultfd.c | 43 +- include/linux/mm.h | 8 + include/linux/swap.h | 14 +- include/linux/swapops.h | 16 + include/linux/userfaultfd_k.h | 5 + include/linux/userswap.h | 60 +++ include/trace/events/mmflags.h | 7 + include/uapi/linux/mman.h | 1 + include/uapi/linux/userfaultfd.h | 3 + mm/Kconfig | 10 + mm/Makefile | 1 + mm/memory.c | 8 + mm/mremap.c | 8 +- mm/userfaultfd.c | 12 + mm/userswap.c | 552 +++++++++++++++++++++++++ 18 files changed, 747 insertions(+), 6 deletions(-) create mode 100644 include/linux/userswap.h create mode 100644 mm/userswap.c -- 2.25.1

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[PATCH OLK-6.6 0/3] cgroup v1 writeback enable
by chenridong 11 Dec '23

11 Dec '23

Lu Jialin (3): cgroup: deaggregate __cgroup1_get_from_id for cgroup v1, cgroup_get_from_id for cgrp_dfl_root cgroup: support cgroup writeback on cgroupv1 openeuler_defconfig: enable CONFIG_CGROUP_V1_WRITEBACK in openeuler_defconfig for x86 and arm64 arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + block/blk-cgroup.c | 3 + block/blk-cgroup.h | 3 + include/linux/backing-dev.h | 29 +++++- include/linux/cgroup-defs.h | 2 + include/linux/cgroup.h | 1 + include/linux/memcontrol.h | 5 ++ init/Kconfig | 5 ++ kernel/cgroup/cgroup.c | 28 ++++-- mm/backing-dev.c | 117 ++++++++++++++++++++++++- mm/memcontrol.c | 83 +++++++++++++++++- 12 files changed, 264 insertions(+), 14 deletions(-) -- 2.34.1

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