- Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 000/123] arm_mpam: support mpam in olk_6.6
by Zeng Heng 02 Jan '24

02 Jan '24

Amit Singh Tomar (1): fs/resctrl: Remove the limit on the number of CLOSID Babu Moger (9): x86/resctrl: Add multiple tasks to the resctrl group at once x86/resctrl: Simplify rftype flag definitions x86/resctrl: Rename rftype flags for consistency x86/resctrl: Unwind properly from rdt_enable_ctx() x86/resctrl: Move default group file creation to mount x86/resctrl: Introduce "-o debug" mount option x86/resctrl: Display CLOSID for resource group x86/resctrl: Add support for the files of MON groups only x86/resctrl: Display RMID of resource group Fenghua Yu (1): x86/resctrl: Add sparse_masks file in info James Morse (104): tick/nohz: Move tick_nohz_full_mask declaration outside the #ifdef x86/resctrl: kfree() rmid_ptrs from resctrl_exit() x86/resctrl: Create helper for RMID allocation and mondata dir creation x86/resctrl: Move rmid allocation out of mkdir_rdt_prepare() x86/resctrl: Track the closid with the rmid x86/resctrl: Access per-rmid structures by index x86/resctrl: Allow RMID allocation to be scoped by CLOSID x86/resctrl: Track the number of dirty RMID a CLOSID has x86/resctrl: Use __set_bit()/__clear_bit() instead of open coding x86/resctrl: Allocate the cleanest CLOSID by searching closid_num_dirty_rmid x86/resctrl: Move CLOSID/RMID matching and setting to use helpers x86/resctrl: Add cpumask_any_housekeeping() for limbo/overflow x86/resctrl: Queue mon_event_read() instead of sending an IPI x86/resctrl: Allow resctrl_arch_rmid_read() to sleep x86/resctrl: Allow arch to allocate memory needed in resctrl_arch_rmid_read() x86/resctrl: Make resctrl_mounted checks explicit x86/resctrl: Move alloc/mon static keys into helpers x86/resctrl: Make rdt_enable_key the arch's decision to switch x86/resctrl: Add helpers for system wide mon/alloc capable x86/resctrl: Add CPU online callback for resctrl work x86/resctrl: Allow overflow/limbo handlers to be scheduled on any-but cpu x86/resctrl: Add CPU offline callback for resctrl work x86/resctrl: Move domain helper migration into resctrl_offline_cpu() x86/resctrl: Separate arch and fs resctrl locks x86/resctrl: Add a helper to avoid reaching into the arch code resource list x86/resctrl: Move ctrlval string parsing links away from the arch code x86/resctrl: Add helper for setting CPU default properties x86/resctrl: Remove rdtgroup from update_cpu_closid_rmid() x86/resctrl: Export resctrl fs's init function x86/resctrl: Wrap resctrl_arch_find_domain() around rdt_find_domain() x86/resctrl: Move resctrl types to a separate header x86/resctrl: Add a resctrl helper to reset all the resources x86/resctrl: Move monitor init work to a resctrl init call x86/resctrl: Move monitor exit work to a restrl exit call x86/resctrl: Move max_{name,data}_width into resctrl code x86/resctrl: Stop using the for_each_*_rdt_resource() walkers x86/resctrl: Export the is_mbm_*_enabled() helpers to asm/resctrl.h x86/resctrl: Add resctrl_arch_is_evt_configurable() to abstract BMEC x86/resctrl: Change mon_event_config_{read,write}() to be arch helpers x86/resctrl: Allow resctrl_arch_mon_event_config_write() to return an error x86/resctrl: Allow an architecture to disable pseudo lock x86/resctrl: Make prefetch_disable_bits belong to the arch code x86/resctrl: Make resctrl_arch_pseudo_lock_fn() take a plr x86/resctrl: Move thread_throttle_mode_init() to be managed by resctrl x86/resctrl: Move get_config_index() to a header x86/resctrl: Claim get_domain_from_cpu() for resctrl x86/resctrl: Describe resctrl's bitmap size assumptions x86/resctrl: Drop __init/__exit on assorted symbols fs/resctrl: Add boiler plate for external resctrl code x86/resctrl: Move the filesystem bits to headers visible to fs/resctrl x86/resctrl: Move the filesystem portions of resctrl to live in '/fs/' arm64: head.S: Initialise MPAM EL2 registers and disable traps arm64: cpufeature: discover CPU support for MPAM KVM: arm64: Fix missing traps of guest accesses to the MPAM registers KVM: arm64: Disable MPAM visibility by default, and handle traps arm64: mpam: Context switch the MPAM registers untested: KVM: arm64: Force guest EL1 to use user-space's partid configuration ACPI / PPTT: Provide a helper to walk processor containers ACPI / PPTT: Find PPTT cache level by ID ACPI / PPTT: Add a helper to fill a cpumask from a processor container ACPI / PPTT: Add a helper to fill a cpumask from a cache_id cacheinfo: Expose the code to generate a cache-id from a device_node drivers: base: cacheinfo: Add helper to find the cache size from cpu+level ACPI / MPAM: Parse the MPAM table arm_mpam: Add probe/remove for mpam msc driver and kbuild boiler plate arm_mpam: Add the class and component structures for ris firmware described arm_mpam: Add MPAM MSC register layout definitions arm_mpam: Add cpuhp callbacks to probe MSC hardware arm_mpam: Probe MSCs to find the supported partid/pmg values arm_mpam: Probe the hardware features resctrl supports arm_mpam: Merge supported features during mpam_enable() into mpam_class arm_mpam: Reset MSC controls from cpu hp callbacks arm_mpam: Add a helper to touch an MSC from any CPU arm_mpam: Extend reset logic to allow devices to be reset any time arm_mpam: Register and enable IRQs arm_mpam: Use the arch static key to indicate when mpam is enabled arm_mpam: Allow configuration to be applied and restored during cpu online arm_mpam: Probe and reset the rest of the features arm_mpam: Add helpers to allocate monitors arm_mpam: Add mpam_msmon_read() to read monitor value arm_mpam: Track bandwidth counter state for overflow and power management arm_mpam: Add helper to reset saved mbwu state arm_mpam: resctrl: Add boilerplate cpuhp and domain allocation arm_mpam: resctrl: Pick the caches we will use as resctrl resources arm_mpam: resctrl: Pick a value for num_rmid arm_mpam: resctrl: Implement resctrl_arch_reset_resources() arm_mpam: resctrl: Add resctrl_arch_get_config() arm_mpam: resctrl: Implement helpers to update configuration arm_mpam: resctrl: Add CDP emulation arm64: mpam: Add helpers to change a tasks and cpu mpam partid/pmg values arm_mpam: resctrl: Add rmid index helpers untested: arm_mpam: resctrl: Add support for MB resource untested: arm_mpam: resctrl: Add support for mbm counters arm_mpam: resctrl: Allow resctrl to allocate monitors arm_mpam: resctrl: Add resctrl_arch_rmid_read() and resctrl_arch_reset_rmid() untested: arm_mpam: resctrl: Allow monitors to be configured arm_mpam: resctrl: Add empty definitions for pseudo lock arm_mpam: resctrl: Add empty definitions for fine-grained enables arm_mpam: resctrl: Add dummy definition for free running counters arm64: mpam: Select ARCH_HAS_CPU_RESCTRL perf/arm-cmn: Stop claiming all the resources arm_mpam: resctrl: Tell resctrl about cpu/domain online/offline arm_mpam: resctrl: Call resctrl_exit() in the event of errors arm_mpam: resctrl: Update the rmid reallocation limit Maciej Wieczor-Retman (3): x86/resctrl: Fix remaining kernel-doc warnings x86/resctrl: Rename arch_has_sparse_bitmaps x86/resctrl: Enable non-contiguous CBMs in Intel CAT Rob Herring (3): cacheinfo: Allow for >32-bit cache 'id' cacheinfo: Set cache 'id' based on DT data dt-bindings: arm: Add MPAM MSC binding Rohit Mathew (2): arm_mpam: Probe for long/lwd mbwu counters arm_mpam: Use long MBWU counters if supported .../arch/arm64/cpu-feature-registers.rst | 2 + Documentation/arch/x86/resctrl.rst | 22 +- .../devicetree/bindings/arm/arm,mpam-msc.yaml | 227 + MAINTAINERS | 2 + arch/Kconfig | 8 + arch/arm64/Kconfig | 22 +- arch/arm64/include/asm/cpu.h | 1 + arch/arm64/include/asm/cpufeature.h | 13 + arch/arm64/include/asm/el2_setup.h | 16 + arch/arm64/include/asm/kvm_arm.h | 1 + arch/arm64/include/asm/mpam.h | 167 + arch/arm64/include/asm/resctrl.h | 1 + arch/arm64/include/asm/sysreg.h | 8 + arch/arm64/include/asm/thread_info.h | 3 + arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/cpufeature.c | 68 + arch/arm64/kernel/cpuinfo.c | 4 + arch/arm64/kernel/image-vars.h | 5 + arch/arm64/kernel/mpam.c | 23 + arch/arm64/kernel/process.c | 7 + arch/arm64/kvm/hyp/include/hyp/switch.h | 32 + arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 27 + arch/arm64/kvm/hyp/nvhe/switch.c | 11 + arch/arm64/kvm/hyp/vhe/sysreg-sr.c | 1 + arch/arm64/kvm/sys_regs.c | 70 +- arch/arm64/tools/cpucaps | 1 + arch/arm64/tools/sysreg | 33 + arch/x86/Kconfig | 5 +- arch/x86/include/asm/resctrl.h | 131 +- arch/x86/kernel/cpu/resctrl/core.c | 212 +- arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 476 +- arch/x86/kernel/cpu/resctrl/internal.h | 394 +- arch/x86/kernel/cpu/resctrl/monitor.c | 594 +-- arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 1123 +---- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 3916 +--------------- drivers/acpi/arm64/Kconfig | 3 + drivers/acpi/arm64/Makefile | 2 + drivers/acpi/arm64/mpam.c | 369 ++ drivers/acpi/pptt.c | 278 +- drivers/acpi/tables.c | 2 +- drivers/base/cacheinfo.c | 41 +- drivers/perf/arm-cmn.c | 12 +- drivers/platform/Kconfig | 2 + drivers/platform/Makefile | 1 + drivers/platform/mpam/Kconfig | 8 + drivers/platform/mpam/Makefile | 1 + drivers/platform/mpam/mpam_devices.c | 2422 ++++++++++ drivers/platform/mpam/mpam_internal.h | 576 +++ drivers/platform/mpam/mpam_resctrl.c | 1209 +++++ fs/Kconfig | 1 + fs/Makefile | 1 + fs/resctrl/Kconfig | 23 + fs/resctrl/Makefile | 1 + fs/resctrl/ctrlmondata.c | 528 +++ fs/resctrl/internal.h | 313 ++ fs/resctrl/monitor.c | 859 ++++ fs/resctrl/psuedo_lock.c | 1134 +++++ fs/resctrl/rdtgroup.c | 4015 +++++++++++++++++ include/linux/acpi.h | 17 + include/linux/arm_mpam.h | 105 + include/linux/cacheinfo.h | 30 +- include/linux/resctrl.h | 203 +- include/linux/resctrl_types.h | 98 + include/linux/tick.h | 9 +- 64 files changed, 13418 insertions(+), 6472 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/arm,mpam-msc.yaml create mode 100644 arch/arm64/include/asm/mpam.h create mode 100644 arch/arm64/include/asm/resctrl.h create mode 100644 arch/arm64/kernel/mpam.c create mode 100644 drivers/acpi/arm64/mpam.c create mode 100644 drivers/platform/mpam/Kconfig create mode 100644 drivers/platform/mpam/Makefile create mode 100644 drivers/platform/mpam/mpam_devices.c create mode 100644 drivers/platform/mpam/mpam_internal.h create mode 100644 drivers/platform/mpam/mpam_resctrl.c create mode 100644 fs/resctrl/Kconfig create mode 100644 fs/resctrl/Makefile create mode 100644 fs/resctrl/ctrlmondata.c create mode 100644 fs/resctrl/internal.h create mode 100644 fs/resctrl/monitor.c create mode 100644 fs/resctrl/psuedo_lock.c create mode 100644 fs/resctrl/rdtgroup.c create mode 100644 include/linux/arm_mpam.h create mode 100644 include/linux/resctrl_types.h -- 2.25.1

2 124

[PATCH OLK-6.6 0/8] backport etmem feature from OLK-5.10
by Yuchen Tang 02 Jan '24

02 Jan '24

Kemeng Shi (2): x86: hugepage: use nt copy hugepage to AEP in x86 ugepage: add sysctl for hugepage alloc and mig Yuchen Tang (6): etmem: add etmem scan feature to openEuler etmem: add etmem swap feature to openEuler mm: introduce and export pgdat peer_node mm: alloc pages from pmem's peer node etmem: add original kernel swap enabled options etmem: add swapcache reclaim to etmem arch/arm64/configs/openeuler_defconfig | 3 + arch/x86/configs/openeuler_defconfig | 3 + arch/x86/include/asm/page_64.h | 9 + arch/x86/lib/Makefile | 1 + arch/x86/lib/copy_highpages.c | 107 ++ arch/x86/lib/copy_page_64.S | 73 ++ drivers/acpi/numa/srat.c | 7 + drivers/base/node.c | 15 + fs/proc/Makefile | 3 + fs/proc/base.c | 8 + fs/proc/etmem_proc.c | 216 ++++ fs/proc/etmem_scan.c | 1440 ++++++++++++++++++++++++ fs/proc/etmem_scan.h | 149 +++ fs/proc/etmem_swap.c | 283 +++++ fs/proc/internal.h | 4 + include/linux/etmem.h | 105 ++ include/linux/highmem.h | 17 + include/linux/mm.h | 4 + include/linux/mm_types.h | 6 + include/linux/mmzone.h | 14 + include/linux/swap.h | 2 +- include/uapi/asm-generic/mman-common.h | 4 + mm/Kconfig | 33 + mm/Makefile | 1 + mm/etmem.c | 475 ++++++++ mm/hugetlb.c | 9 + mm/madvise.c | 16 + mm/mm_init.c | 4 + mm/pagewalk.c | 3 + mm/sparse-vmemmap.c | 10 + mm/swap_state.c | 4 + mm/util.c | 5 + mm/vmscan.c | 21 + virt/kvm/kvm_main.c | 6 + 34 files changed, 3059 insertions(+), 1 deletion(-) create mode 100644 arch/x86/lib/copy_highpages.c create mode 100644 fs/proc/etmem_proc.c create mode 100644 fs/proc/etmem_scan.c create mode 100644 fs/proc/etmem_scan.h create mode 100644 fs/proc/etmem_swap.c create mode 100644 include/linux/etmem.h create mode 100644 mm/etmem.c -- 2.33.0

3 10

[PATCH OLK-6.6 0/7] introduce smart_grid zone
by Yipeng Zou 02 Jan '24

02 Jan '24

The patch sets include two parts: 1. patch 1~3: Rebase smart_grid from OLK-5.10 to OLK-6.6 2. patch 4~7: introduce smart_grid zone qos and cpufreq Hui Tang (1): sched: Introduce smart grid scheduling strategy for cfs Wang ShaoBo (2): sched: smart grid: init sched_grid_qos structure on QOS purpose config: enable CONFIG_QOS_SCHED_SMART_GRID by default Yipeng Zou (4): sched: introduce smart grid qos zone smart_grid: introduce /proc/pid/smart_grid_level smart_grid: introduce smart_grid_strategy_ctrl sysctl smart_grid: cpufreq: introduce smart_grid cpufreq control arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/cpufreq/cpufreq.c | 232 ++++++++++++ fs/proc/array.c | 16 + fs/proc/base.c | 78 ++++ include/linux/cpufreq.h | 11 + include/linux/sched.h | 17 + include/linux/sched/grid_qos.h | 135 +++++++ include/linux/sched/sysctl.h | 5 + init/Kconfig | 13 + kernel/fork.c | 12 + kernel/sched/Makefile | 1 + kernel/sched/core.c | 181 +++++++++ kernel/sched/fair.c | 503 ++++++++++++++++++++++++- kernel/sched/grid/Makefile | 2 + kernel/sched/grid/internal.h | 6 + kernel/sched/grid/power.c | 27 ++ kernel/sched/grid/qos.c | 279 ++++++++++++++ kernel/sched/grid/stat.c | 47 +++ kernel/sched/sched.h | 48 ++- kernel/sysctl.c | 23 ++ mm/mempolicy.c | 11 +- 22 files changed, 1638 insertions(+), 11 deletions(-) create mode 100644 include/linux/sched/grid_qos.h create mode 100644 kernel/sched/grid/Makefile create mode 100644 kernel/sched/grid/internal.h create mode 100644 kernel/sched/grid/power.c create mode 100644 kernel/sched/grid/qos.c create mode 100644 kernel/sched/grid/stat.c -- 2.34.1

2 8

[PATCH OLK-6.6 0/2] lib/clear_user: ensure loop in __arch_clear_user cache-aligned v2
by Yang Yingliang 02 Jan '24

02 Jan '24

We must ensure that the following four instructions are cache-aligned. Otherwise, it will cause problems with the performance of libMicro pread. 1: # uao_user_alternative 9f, str, sttr, xzr, x0, 8 str xzr, [x0], #8 nop subs x1, x1, #8 b.pl 1b with this patch: prc thr usecs/call samples errors cnt/samp size pread_z100 1 1 5.88400 807 0 1 102400 The result of pread can range from 5 to 9 depending on the alignment performance of this function. Cheng Jian (1): lib/clear_user: ensure loop in __arch_clear_user cache-aligned v2 Yang Yingliang (1): config: enable CONFIG_CLEAR_USER_WORKAROUND by default arch/arm64/Kconfig | 7 +++++++ arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/lib/clear_user.S | 3 +++ 3 files changed, 11 insertions(+) -- 2.25.1

2 3

[PATCH OLK-6.6 0/2] add memmap interface to reserved memory
by Ze Zuo 02 Jan '24

02 Jan '24

Add support for memmap kernel parameters for ARM64. The three below modes are supported: memmap=exactmap Enable setting of an exact memory map, as specified by the user. memmap=nn[KMG]@ss[KMG] Force usage of a specific region of memory. memmap=nn[KMG]$ss[KMG] Region of memory to be reserved is from ss to ss+nn, the region must be in the range of existed memory, otherwise will be ignored. Please note that the above functions are for debugging purposes only. ChangeLog: - Some minor changes about description and code, no functional changes Ze Zuo (2): arm64: Add support for memmap kernel parameters arm64: Request resources for reserved memory via memmap .../admin-guide/kernel-parameters.txt | 14 ++- arch/arm64/kernel/setup.c | 32 +++++ arch/arm64/mm/init.c | 112 ++++++++++++++++++ arch/arm64/mm/internal.h | 12 ++ 4 files changed, 167 insertions(+), 3 deletions(-) create mode 100644 arch/arm64/mm/internal.h -- 2.25.1

2 3

[PATCH OpenEuler-1.0-LTS 0/3] Fix bugs from LTS patches
by Zhang Zekun 02 Jan '24

02 Jan '24

Bugfix from linux stable patches Mukesh Ojha (2): devcoredump : Serialize devcd_del work devcoredump: Send uevent once devcd is ready Saravana Kannan (1): driver core: Release all resources during unbind before updating device links drivers/base/dd.c | 4 +- drivers/base/devcoredump.c | 86 +++++++++++++++++++++++++++++++++++++- 2 files changed, 86 insertions(+), 4 deletions(-) -- 2.17.1

2 4

[PATCH OLK-6.6 0/2] To offer an option for turn off spectre-v2
by Yi Yang 02 Jan '24

02 Jan '24

option for turn off spectre-v2 Cui GaoSheng (1): ARM: use ldr_l to replace ldr instruction for the symbol jump GONG, Ruiqi (1): ARM: spectre-v2: turn off the mitigation via boot cmdline param arch/arm/include/asm/system_misc.h | 1 + arch/arm/mm/proc-v7-bugs.c | 18 ++++++++++++++++++ arch/arm/mm/proc-v7.S | 9 +++++++++ 3 files changed, 28 insertions(+) -- 2.25.1

2 3

[PATCH OLK-6.6 v3 0/3] blk-mq: make fair tag sharing configurable
by Yu Kuai 02 Jan '24

02 Jan '24

Changes in v3: - add lockdep_assert_held() in queue_update_fair_tag_sharing() - use tag_set->flags instead of new field; Changes in v2: - use a local variable for 'q->tag_set->disable_fair_tag_sharing' before iteration in queue_update_fair_tag_sharing(); - only update fair tag sharing if blk_mq_realloc_tag_set_tags() succeed in __blk_mq_update_nr_hw_queues(); Yu Kuai (3): blk-mq: add apis to disable fair tag sharing scsi: core: make fair tag sharing configurable via sysfs scsi_lib: disable fair tag sharing by default if total tags is less than 128 block/blk-mq-debugfs.c | 1 + block/blk-mq.c | 38 +++++++++++++++++++++++++++++++++++++- block/blk-mq.h | 3 ++- drivers/scsi/scsi_lib.c | 3 +++ drivers/scsi/scsi_sysfs.c | 39 +++++++++++++++++++++++++++++++++++++++ include/linux/blk-mq.h | 2 ++ 6 files changed, 84 insertions(+), 2 deletions(-) -- 2.39.2

2 4

[PATCH OLK-6.6 0/1] kabi: reserve space for cpu cgroup and
by Xiang Yang 02 Jan '24

02 Jan '24

Lu Jialin (1): kabi: reserve space for cpu cgroup and cpuset cgroup related structures kernel/cgroup/cpuset.c | 6 ++++++ kernel/sched/sched.h | 5 +++++ 2 files changed, 11 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] appletalk: Fix Use-After-Free in atalk_ioctl
by Dong Chenchen 02 Jan '24

02 Jan '24

From: Hyunwoo Kim <v4bel(a)theori.io> stable inclusion from stable-v4.19.302 commit 580ff9f59ab6537d8ce1d0d9f012cf970553ef3d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8RXOY CVE: CVE-2023-51781 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 189ff16722ee36ced4d2a2469d4ab65a8fee4198 ] Because atalk_ioctl() accesses sk->sk_receive_queue without holding a sk->sk_receive_queue.lock, it can cause a race with atalk_recvmsg(). A use-after-free for skb occurs with the following flow. ``` atalk_ioctl() -> skb_peek() atalk_recvmsg() -> skb_recv_datagram() -> skb_free_datagram() ``` Add sk->sk_receive_queue.lock to atalk_ioctl() to fix this issue. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Hyunwoo Kim <v4bel(a)theori.io> Link: https://lore.kernel.org/r/20231213041056.GA519680@v4bel-B760M-AORUS-ELITE-AX Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/appletalk/ddp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 2880ac470379..55c99ec018d7 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1799,15 +1799,14 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } case TIOCINQ: { - /* - * These two are safe on a single CPU system as only - * user tasks fiddle here - */ - struct sk_buff *skb = skb_peek(&sk->sk_receive_queue); + struct sk_buff *skb; long amount = 0; + spin_lock_irq(&sk->sk_receive_queue.lock); + skb = skb_peek(&sk->sk_receive_queue); if (skb) amount = skb->len - sizeof(struct ddpehdr); + spin_unlock_irq(&sk->sk_receive_queue.lock); rc = put_user(amount, (int __user *)argp); break; } -- 2.25.1

2 1