- Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 7 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 775 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 674 +++++++++++++++++++++ 27 files changed, 3863 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

2 9

[openeuler:OLK-6.6 3198/3198] mm/memory.c:2802:5: warning: no previous prototype for '__remap_pfn_range'
by kernel test robot 17 Nov '25

17 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: ebdf6593446d169605a079430b44abc212c60eb6 commit: 923e224a12462d640fa37f3069c6bfafd378ac3b [3198/3198] mm: introduce remap_pfn_range_try_pmd() for PMD-level hugepage mapping config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20251117/202511171413.zOn7Hte0-lkp@…) compiler: aarch64-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171413.zOn7Hte0-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511171413.zOn7Hte0-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/memory.c:68: include/linux/migrate.h:102:9: error: expected identifier or '(' before '{' token 102 | { return -EINVAL; } | ^ >> mm/memory.c:2802:5: warning: no previous prototype for '__remap_pfn_range' [-Wmissing-prototypes] 2802 | int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, | ^~~~~~~~~~~~~~~~~ mm/memory.c: In function 'do_numa_page': mm/memory.c:5614:24: warning: variable 'nr_pages' set but not used [-Wunused-but-set-variable] 5614 | int flags = 0, nr_pages; | ^~~~~~~~ include/linux/migrate.h: At top level: include/linux/migrate.h:98:19: warning: 'isolate_and_migrate_folios' declared 'static' but never defined [-Wunused-function] 98 | static inline int isolate_and_migrate_folios(struct folio **folios, unsigned int nr_folios, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for ARCH_SUPPORTS_SCHED_SOFT_QUOTA Depends on [n]: CGROUPS [=n] Selected by [y]: - ARM64 [=y] WARNING: unmet direct dependencies detected for HALTPOLL_CPUIDLE Depends on [n]: CPU_IDLE [=n] && ARCH_CPUIDLE_HALTPOLL [=y] && ARCH_HAS_OPTIMIZED_POLL [=y] Selected by [y]: - ARM64 [=y] vim +/__remap_pfn_range +2802 mm/memory.c 2789 2790 /** 2791 * remap_pfn_range - remap kernel memory to userspace 2792 * @vma: user vma to map to 2793 * @addr: target page aligned user address to start at 2794 * @pfn: page frame number of kernel physical memory address 2795 * @size: size of mapping area 2796 * @prot: page protection flags for this mapping 2797 * 2798 * Note: this is only safe if the mm semaphore is held when called. 2799 * 2800 * Return: %0 on success, negative error code otherwise. 2801 */ > 2802 int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, 2803 unsigned long pfn, unsigned long size, pgprot_t prot, 2804 unsigned int page_shift) 2805 { 2806 int err; 2807 2808 err = track_pfn_remap(vma, &prot, pfn, addr, PAGE_ALIGN(size)); 2809 if (err) 2810 return -EINVAL; 2811 2812 err = __remap_pfn_range_notrack(vma, addr, pfn, size, prot, page_shift); 2813 if (err) 2814 untrack_pfn(vma, pfn, PAGE_ALIGN(size), true); 2815 return err; 2816 } 2817 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3198/3198] mm/memory.c:2802:5: warning: no previous prototype for function '__remap_pfn_range'
by kernel test robot 17 Nov '25

17 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9058fc5efa4aa44340385ca69fb4ef016931af50 commit: 923e224a12462d640fa37f3069c6bfafd378ac3b [3198/3198] mm: introduce remap_pfn_range_try_pmd() for PMD-level hugepage mapping config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20251117/202511171230.PQsrWhhz-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171230.PQsrWhhz-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511171230.PQsrWhhz-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/memory.c:68: include/linux/migrate.h:102:2: error: expected identifier or '(' 102 | { return -EINVAL; } | ^ >> mm/memory.c:2802:5: warning: no previous prototype for function '__remap_pfn_range' [-Wmissing-prototypes] 2802 | int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, | ^ mm/memory.c:2802:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2802 | int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, | ^ | static mm/memory.c:5614:17: warning: variable 'nr_pages' set but not used [-Wunused-but-set-variable] 5614 | int flags = 0, nr_pages; | ^ 2 warnings and 1 error generated. vim +/__remap_pfn_range +2802 mm/memory.c 2789 2790 /** 2791 * remap_pfn_range - remap kernel memory to userspace 2792 * @vma: user vma to map to 2793 * @addr: target page aligned user address to start at 2794 * @pfn: page frame number of kernel physical memory address 2795 * @size: size of mapping area 2796 * @prot: page protection flags for this mapping 2797 * 2798 * Note: this is only safe if the mm semaphore is held when called. 2799 * 2800 * Return: %0 on success, negative error code otherwise. 2801 */ > 2802 int __remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, 2803 unsigned long pfn, unsigned long size, pgprot_t prot, 2804 unsigned int page_shift) 2805 { 2806 int err; 2807 2808 err = track_pfn_remap(vma, &prot, pfn, addr, PAGE_ALIGN(size)); 2809 if (err) 2810 return -EINVAL; 2811 2812 err = __remap_pfn_range_notrack(vma, addr, pfn, size, prot, page_shift); 2813 if (err) 2814 untrack_pfn(vma, pfn, PAGE_ALIGN(size), true); 2815 return err; 2816 } 2817 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 v5 00/48] fuse:io_uring: support fuse over io_uring
by Long Li 17 Nov '25

17 Nov '25

v1 -> v2: Fix some build error for io_uring patchs. v2 -> v3: Modify kabi fixed patchs format v3 -> v4: Enable CONFIG_FUSE_IO_URING v4 -> v5: Fix patch commit message format Bernd Schubert (19): fuse: rename to fuse_dev_end_requests and make non-static fuse: Move fuse_get_dev to header file fuse: Move request bits fuse: Add fuse-io-uring design documentation fuse: make args->in_args[0] to be always the header fuse: {io-uring} Handle SQEs - register commands fuse: Make fuse_copy non static fuse: Add fuse-io-uring handling into fuse_copy fuse: {io-uring} Make hash-list req unique finding functions non-static fuse: Add io-uring sqe commit and fetch support fuse: {io-uring} Handle teardown of ring entries fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static fuse: Allow to queue fg requests through io-uring fuse: Allow to queue bg requests through io-uring fuse: {io-uring} Prevent mount point hang on fuse-server termination fuse: block request allocation until io-uring init is complete fuse: enable fuse-over-io-uring fuse: prevent disabling io-uring on active connections fuse: {io-uring} Fix a possible req cancellation race Jens Axboe (1): io_uring: remove dead struct io_submit_state member Joanne Koong (2): fuse: fix uring race condition for null dereference of fc fuse: remove unneeded atomic set in uring creation Long Li (5): io_uring: fix kabi broken in struct io_tw_state io_uring: fix kabi broken in struct io_ring_ctx io_uring: fix kabi broken in struct io_submit_state io_uring: fix kabi broken for header file changed openeuler_defconfig: enable CONFIG_FUSE_IO_URING by default Luis Henriques (2): fuse: fix possible deadlock if rings are never initialized fuse: removed unused function fuse_uring_create() from header Ming Lei (3): io_uring: retain top 8bits of uring_cmd flags for kernel internal use io_uring: cancelable uring_cmd io_uring: kill dead code in io_req_complete_post Pavel Begunkov (16): io_uring: split out cmd api into a separate header io_uring/cmd: inline io_uring_cmd_do_in_task_lazy io_uring/cmd: expose iowq to cmds io_uring/cmd: give inline space in request to cmds io_uring/cmd: move io_uring_try_cancel_uring_cmd() io_uring/cmd: kill one issue_flags to tw conversion io_uring/cmd: fix tw <-> issue_flags conversion io_uring/cmd: document some uring_cmd related helpers io_uring: force tw ctx locking io_uring: remove struct io_tw_state::locked io_uring: refactor io_fill_cqe_req_aux io_uring: get rid of intermediate aux cqe caches io_uring: remove current check from complete_post io_uring: refactor io_req_complete_post() io_uring: clean up io_lockdep_assert_cq_locked io_uring/cmd: let cmds to know about dying task Documentation/filesystems/fuse-io-uring.rst | 99 ++ Documentation/filesystems/index.rst | 1 + MAINTAINERS | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/block/ublk_drv.c | 2 +- drivers/nvme/host/ioctl.c | 2 +- fs/fuse/Kconfig | 12 + fs/fuse/Makefile | 1 + fs/fuse/dax.c | 11 +- fs/fuse/dev.c | 174 ++- fs/fuse/dev_uring.c | 1326 +++++++++++++++++++ fs/fuse/dev_uring_i.h | 205 +++ fs/fuse/dir.c | 32 +- fs/fuse/fuse_dev_i.h | 69 + fs/fuse/fuse_i.h | 35 +- fs/fuse/inode.c | 14 +- fs/fuse/xattr.c | 7 +- include/linux/io_uring.h | 73 +- include/linux/io_uring/cmd.h | 140 ++ include/linux/io_uring_types.h | 7 +- include/uapi/linux/fuse.h | 77 +- include/uapi/linux/io_uring.h | 5 +- io_uring/io_uring.c | 212 +-- io_uring/io_uring.h | 34 +- io_uring/net.c | 6 +- io_uring/poll.c | 3 +- io_uring/refs.h | 7 + io_uring/rw.c | 8 +- io_uring/timeout.c | 8 +- io_uring/uring_cmd.c | 114 +- io_uring/uring_cmd.h | 3 + security/selinux/hooks.c | 2 +- security/smack/smack_lsm.c | 2 +- 34 files changed, 2315 insertions(+), 379 deletions(-) create mode 100644 Documentation/filesystems/fuse-io-uring.rst create mode 100644 fs/fuse/dev_uring.c create mode 100644 fs/fuse/dev_uring_i.h create mode 100644 fs/fuse/fuse_dev_i.h create mode 100644 include/linux/io_uring/cmd.h -- 2.39.2

2 49

[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 6 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 775 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 673 +++++++++++++++++++++ 27 files changed, 3861 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

2 9

[PATCH OLK-6.6 v4 00/48] fuse:io_uring: support fuse over io_uring
by Long Li 17 Nov '25

17 Nov '25

v1 -> v2: Fix some build error for io_uring patchs. v2 -> v3: Modify kabi fixed patchs format v3 -> v4: Enable CONFIG_FUSE_IO_URING Bernd Schubert (19): fuse: rename to fuse_dev_end_requests and make non-static fuse: Move fuse_get_dev to header file fuse: Move request bits fuse: Add fuse-io-uring design documentation fuse: make args->in_args[0] to be always the header fuse: {io-uring} Handle SQEs - register commands fuse: Make fuse_copy non static fuse: Add fuse-io-uring handling into fuse_copy fuse: {io-uring} Make hash-list req unique finding functions non-static fuse: Add io-uring sqe commit and fetch support fuse: {io-uring} Handle teardown of ring entries fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static fuse: Allow to queue fg requests through io-uring fuse: Allow to queue bg requests through io-uring fuse: {io-uring} Prevent mount point hang on fuse-server termination fuse: block request allocation until io-uring init is complete fuse: enable fuse-over-io-uring fuse: prevent disabling io-uring on active connections fuse: {io-uring} Fix a possible req cancellation race Jens Axboe (1): io_uring: remove dead struct io_submit_state member Joanne Koong (2): fuse: fix uring race condition for null dereference of fc fuse: remove unneeded atomic set in uring creation Long Li (5): io_uring: fix kabi broken in struct io_tw_state io_uring: fix kabi broken in struct io_ring_ctx io_uring: fix kabi broken in struct io_submit_state io_uring: fix kabi broken for header file changed openeuler_defconfig: enable CONFIG_FUSE_IO_URING by default Luis Henriques (2): fuse: fix possible deadlock if rings are never initialized fuse: removed unused function fuse_uring_create() from header Ming Lei (3): io_uring: retain top 8bits of uring_cmd flags for kernel internal use io_uring: cancelable uring_cmd io_uring: kill dead code in io_req_complete_post Pavel Begunkov (16): io_uring: split out cmd api into a separate header io_uring/cmd: inline io_uring_cmd_do_in_task_lazy io_uring/cmd: expose iowq to cmds io_uring/cmd: give inline space in request to cmds io_uring/cmd: move io_uring_try_cancel_uring_cmd() io_uring/cmd: kill one issue_flags to tw conversion io_uring/cmd: fix tw <-> issue_flags conversion io_uring/cmd: document some uring_cmd related helpers io_uring: force tw ctx locking io_uring: remove struct io_tw_state::locked io_uring: refactor io_fill_cqe_req_aux io_uring: get rid of intermediate aux cqe caches io_uring: remove current check from complete_post io_uring: refactor io_req_complete_post() io_uring: clean up io_lockdep_assert_cq_locked io_uring/cmd: let cmds to know about dying task Documentation/filesystems/fuse-io-uring.rst | 99 ++ Documentation/filesystems/index.rst | 1 + MAINTAINERS | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/block/ublk_drv.c | 2 +- drivers/nvme/host/ioctl.c | 2 +- fs/fuse/Kconfig | 12 + fs/fuse/Makefile | 1 + fs/fuse/dax.c | 11 +- fs/fuse/dev.c | 174 ++- fs/fuse/dev_uring.c | 1326 +++++++++++++++++++ fs/fuse/dev_uring_i.h | 205 +++ fs/fuse/dir.c | 32 +- fs/fuse/fuse_dev_i.h | 69 + fs/fuse/fuse_i.h | 35 +- fs/fuse/inode.c | 14 +- fs/fuse/xattr.c | 7 +- include/linux/io_uring.h | 73 +- include/linux/io_uring/cmd.h | 140 ++ include/linux/io_uring_types.h | 7 +- include/uapi/linux/fuse.h | 77 +- include/uapi/linux/io_uring.h | 5 +- io_uring/io_uring.c | 212 +-- io_uring/io_uring.h | 34 +- io_uring/net.c | 6 +- io_uring/poll.c | 3 +- io_uring/refs.h | 7 + io_uring/rw.c | 8 +- io_uring/timeout.c | 8 +- io_uring/uring_cmd.c | 114 +- io_uring/uring_cmd.h | 3 + security/selinux/hooks.c | 2 +- security/smack/smack_lsm.c | 2 +- 34 files changed, 2315 insertions(+), 379 deletions(-) create mode 100644 Documentation/filesystems/fuse-io-uring.rst create mode 100644 fs/fuse/dev_uring.c create mode 100644 fs/fuse/dev_uring_i.h create mode 100644 fs/fuse/fuse_dev_i.h create mode 100644 include/linux/io_uring/cmd.h -- 2.39.2

2 49

[PATCH OLK-6.6 0/2] CVE-2025-40169
by Pu Lehui 17 Nov '25

17 Nov '25

Eduard Zingerman (1): selftests/bpf: Add tests for rejection of ALU ops with negative offsets Yazhou Tang (1): bpf: Reject negative offsets for ALU ops kernel/bpf/verifier.c | 4 +-- .../bpf/progs/verifier_value_illegal_alu.c | 29 +++++++++++++++++++ 2 files changed, 31 insertions(+), 2 deletions(-) -- 2.34.1

2 3

[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 6 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 775 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 666 +++++++++++++++++++++ 27 files changed, 3854 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

2 9

[PATCH OLK-6.6 0/8] xsched: XCU Partition
by Zicheng Qu 17 Nov '25

17 Nov '25

Alekseev Dmitry (2): xsched: Add XCU control group implementation and its backend in xsched CFS xsched: Add support for CFS quota for cgroups Konstantin Meskhidze (6): xsched: Add base vstream support xcu: Add base NPU driver support xsched: Introduce vstream management xsched: Add basic scheduler core support xsched: Add xsched RT class xsched: Add xsched CFS class arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 +- arch/x86/include/uapi/asm/unistd.h | 1 + drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 380 ++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/syscalls.h | 2 + include/linux/vstream.h | 91 +++ include/linux/xcu_group.h | 96 +++ include/linux/xsched.h | 514 ++++++++++++++++ include/uapi/asm-generic/unistd.h | 6 +- include/uapi/linux/xcu_vstream.h | 77 +++ init/Kconfig | 1 + kernel/Makefile | 1 + kernel/cgroup/cgroup.c | 2 +- kernel/xsched/Kconfig | 85 +++ kernel/xsched/Makefile | 6 + kernel/xsched/cfs.c | 237 ++++++++ kernel/xsched/cfs_quota.c | 98 ++++ kernel/xsched/cgroup.c | 776 +++++++++++++++++++++++++ kernel/xsched/core.c | 526 +++++++++++++++++ kernel/xsched/rt.c | 281 +++++++++ kernel/xsched/vstream.c | 666 +++++++++++++++++++++ 27 files changed, 3855 insertions(+), 4 deletions(-) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/vstream.h create mode 100644 include/linux/xcu_group.h create mode 100644 include/linux/xsched.h create mode 100644 include/uapi/linux/xcu_vstream.h create mode 100644 kernel/xsched/Kconfig create mode 100644 kernel/xsched/Makefile create mode 100644 kernel/xsched/cfs.c create mode 100644 kernel/xsched/cfs_quota.c create mode 100644 kernel/xsched/cgroup.c create mode 100644 kernel/xsched/core.c create mode 100644 kernel/xsched/rt.c create mode 100644 kernel/xsched/vstream.c -- 2.34.1

2 9

[PATCH OLK-6.6 v3 00/46] fuse:io_uring: support fuse over io_uring
by Long Li 17 Nov '25

17 Nov '25

v1 -> v2: Fix some build error for io_uring patchs. v2 -> v3: Modify kabi fixed patchs format Bernd Schubert (19): fuse: rename to fuse_dev_end_requests and make non-static fuse: Move fuse_get_dev to header file fuse: Move request bits fuse: Add fuse-io-uring design documentation fuse: make args->in_args[0] to be always the header fuse: {io-uring} Handle SQEs - register commands fuse: Make fuse_copy non static fuse: Add fuse-io-uring handling into fuse_copy fuse: {io-uring} Make hash-list req unique finding functions non-static fuse: Add io-uring sqe commit and fetch support fuse: {io-uring} Handle teardown of ring entries fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static fuse: Allow to queue fg requests through io-uring fuse: Allow to queue bg requests through io-uring fuse: {io-uring} Prevent mount point hang on fuse-server termination fuse: block request allocation until io-uring init is complete fuse: enable fuse-over-io-uring fuse: prevent disabling io-uring on active connections fuse: {io-uring} Fix a possible req cancellation race Jens Axboe (1): io_uring: remove dead struct io_submit_state member Joanne Koong (2): fuse: fix uring race condition for null dereference of fc fuse: remove unneeded atomic set in uring creation Long Li (4): io_uring: fix kabi broken in struct io_tw_state io_uring: fix kabi broken in struct io_ring_ctx io_uring: fix kabi broken in struct io_submit_state io_uring: fix kabi broken for header file changed Luis Henriques (2): fuse: fix possible deadlock if rings are never initialized fuse: removed unused function fuse_uring_create() from header Ming Lei (2): io_uring: retain top 8bits of uring_cmd flags for kernel internal use io_uring: cancelable uring_cmd Pavel Begunkov (16): io_uring: split out cmd api into a separate header io_uring/cmd: inline io_uring_cmd_do_in_task_lazy io_uring/cmd: expose iowq to cmds io_uring/cmd: give inline space in request to cmds io_uring/cmd: move io_uring_try_cancel_uring_cmd() io_uring/cmd: kill one issue_flags to tw conversion io_uring/cmd: fix tw <-> issue_flags conversion io_uring/cmd: document some uring_cmd related helpers io_uring: force tw ctx locking io_uring: remove struct io_tw_state::locked io_uring: refactor io_fill_cqe_req_aux io_uring: get rid of intermediate aux cqe caches io_uring: remove current check from complete_post io_uring: refactor io_req_complete_post() io_uring: clean up io_lockdep_assert_cq_locked io_uring/cmd: let cmds to know about dying task Documentation/filesystems/fuse-io-uring.rst | 99 ++ Documentation/filesystems/index.rst | 1 + MAINTAINERS | 1 + drivers/block/ublk_drv.c | 2 +- drivers/nvme/host/ioctl.c | 2 +- fs/fuse/Kconfig | 12 + fs/fuse/Makefile | 1 + fs/fuse/dax.c | 11 +- fs/fuse/dev.c | 174 ++- fs/fuse/dev_uring.c | 1326 +++++++++++++++++++ fs/fuse/dev_uring_i.h | 205 +++ fs/fuse/dir.c | 32 +- fs/fuse/fuse_dev_i.h | 69 + fs/fuse/fuse_i.h | 35 +- fs/fuse/inode.c | 14 +- fs/fuse/xattr.c | 7 +- include/linux/io_uring.h | 73 +- include/linux/io_uring/cmd.h | 140 ++ include/linux/io_uring_types.h | 7 +- include/uapi/linux/fuse.h | 77 +- include/uapi/linux/io_uring.h | 5 +- io_uring/io_uring.c | 175 +-- io_uring/io_uring.h | 34 +- io_uring/net.c | 6 +- io_uring/poll.c | 3 +- io_uring/rw.c | 8 +- io_uring/timeout.c | 8 +- io_uring/uring_cmd.c | 114 +- io_uring/uring_cmd.h | 3 + security/selinux/hooks.c | 2 +- security/smack/smack_lsm.c | 2 +- 31 files changed, 2304 insertions(+), 344 deletions(-) create mode 100644 Documentation/filesystems/fuse-io-uring.rst create mode 100644 fs/fuse/dev_uring.c create mode 100644 fs/fuse/dev_uring_i.h create mode 100644 fs/fuse/fuse_dev_i.h create mode 100644 include/linux/io_uring/cmd.h -- 2.39.2

2 47