June 2024 - Kernel - mailweb.openeuler.org

[PATCH OLK-5.10 v2 00/11] Memory access profiler(SPE) driven NUMA balancing
by Ze Zuo 02 Jun '24

02 Jun '24

Hi, In Arm processors, there is a hardware PMU (Performance Monitoring Unit) facility called Statistical Profiling Extension (SPE) that can gather memory access metrics. In this patchset, SPE is exploited as an access information sampling approach to drive NUMA balancing. This sampling approach is introducedto replace the method based on address space scanning and hint faults with the access information provided by the hardware. With this, it is no longer necessary for NUMA balancing to scan over the address space periodically and rely on task-to-page association built by NUMA hint faults. Instead, the access samples obtained from hardware PMU are fed to NUMA balancing as equivalents to page fault. Except for the replaced sampling approach, the rest of the NUMA balancing policy is retained to do pages and tasks migrations according to the samples. Profiling based on SPE is an valid alternative sampling approach in NUMA balancing for the optimal page and task placement. This can be also extended to other architectures as long as there is a hardware PMU that supports memory access profiling. An abstract layer mem_sampling is introduced to reserve support for other kernel features and different types of hardware PMU. To help evaluate performance of this approach in system, syctl interfaces are added to enable/disable hardware mem sampling. NUMA balancing sampling approach can be also switched back to hint-faults- based approach dynamically. TODOs Currently, SPE for NUMA balance does not support PMD-level page migration, but it will be supported in later version. Changes since v1: -- clean code, no functional change. Ze Zuo (11): drivers/arm/spe: In-kernel SPE driver for page access profiling Add hardware PMU (mem_sampling) abstract layer mm/mem_sampling.c: Add controlling interface for mem_sampling Enable per-process mem_sampling from sched switch path Drive NUMA balancing via mem_sampling access data Add controlling interface for mem_sampling numa_balance tracing, numa balance: add trace events for numa data caused by mem_sampling driver/arm/spe: make mem_sampling and perf reuse arm spe driver tracing, mem-sampling-sample: add trace events for page access spe record ring buffer just for ctx origin flaw config: Enable MEM_SAMPLING for Numa balance by default arch/arm64/configs/openeuler_defconfig | 3 + arch/x86/configs/openeuler_defconfig | 1 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/arm/Kconfig | 2 + drivers/arm/spe/Kconfig | 11 + drivers/arm/spe/Makefile | 2 + drivers/arm/spe/spe-decoder/Makefile | 2 + drivers/arm/spe/spe-decoder/arm-spe-decoder.c | 213 +++++ drivers/arm/spe/spe-decoder/arm-spe-decoder.h | 74 ++ .../arm/spe/spe-decoder/arm-spe-pkt-decoder.c | 227 +++++ .../arm/spe/spe-decoder/arm-spe-pkt-decoder.h | 153 ++++ drivers/arm/spe/spe.c | 864 ++++++++++++++++++ drivers/arm/spe/spe.h | 130 +++ drivers/perf/Kconfig | 2 +- drivers/perf/arm_pmu_acpi.c | 30 +- drivers/perf/arm_spe_pmu.c | 371 ++------ include/linux/mem_sampling.h | 121 +++ include/linux/perf/arm_pmu.h | 8 + include/trace/events/kmem.h | 80 ++ kernel/sched/core.c | 2 + kernel/sched/fair.c | 12 + kernel/sched/sched.h | 1 + mm/Kconfig | 23 + mm/Makefile | 1 + mm/mem_sampling.c | 534 +++++++++++ samples/bpf/spe/Makefile | 26 + samples/bpf/spe/Makefile.arch | 47 + samples/bpf/spe/README.md | 0 samples/bpf/spe/spe-record.bpf.c | 40 + samples/bpf/spe/spe-record.h | 47 + samples/bpf/spe/spe-record.user.c | 116 +++ 32 files changed, 2834 insertions(+), 312 deletions(-) create mode 100644 drivers/arm/Kconfig create mode 100644 drivers/arm/spe/Kconfig create mode 100644 drivers/arm/spe/Makefile create mode 100644 drivers/arm/spe/spe-decoder/Makefile create mode 100644 drivers/arm/spe/spe-decoder/arm-spe-decoder.c create mode 100644 drivers/arm/spe/spe-decoder/arm-spe-decoder.h create mode 100644 drivers/arm/spe/spe-decoder/arm-spe-pkt-decoder.c create mode 100644 drivers/arm/spe/spe-decoder/arm-spe-pkt-decoder.h create mode 100644 drivers/arm/spe/spe.c create mode 100644 drivers/arm/spe/spe.h create mode 100644 include/linux/mem_sampling.h create mode 100644 mm/mem_sampling.c create mode 100644 samples/bpf/spe/Makefile create mode 100644 samples/bpf/spe/Makefile.arch create mode 100644 samples/bpf/spe/README.md create mode 100644 samples/bpf/spe/spe-record.bpf.c create mode 100644 samples/bpf/spe/spe-record.h create mode 100644 samples/bpf/spe/spe-record.user.c -- 2.33.0

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[PATCH openEuler-1.0-LTS 0/8] Fix hugetlb deadlock
by Jinjiang Tu 01 Jun '24

01 Jun '24

fix hugetlb deadlock Jinjiang Tu (2): Revert "hugetlbfs: fix hugetlbfs_statfs() locking" Revert "hugetlb: make free_huge_page irq safe" Mike Kravetz (4): hugetlb: create remove_hugetlb_page() to separate functionality hugetlb: call update_and_free_page without hugetlb_lock hugetlb: change free_pool_huge_page to remove_pool_huge_page hugetlb: make free_huge_page irq safe Mina Almasry (1): hugetlbfs: fix hugetlbfs_statfs() locking Naoya Horiguchi (1): hugetlb: pass head page to remove_hugetlb_page() mm/hugetlb.c | 185 ++++++++++++++++++++++++++++++++------------------- 1 file changed, 117 insertions(+), 68 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/2] *** scsi: megaraid_sas: Fix resource leak in case of probe failure ***
by Luo Gengkun 01 Jun '24

01 Jun '24

*** BLURB HERE *** Chandrakanth Patil (1): scsi: megaraid_sas: Fix resource leak in case of probe failure Shivasharan S (1): scsi: megaraid_sas: Add watchdog thread to detect Firmware fault drivers/scsi/megaraid/megaraid_sas.h | 12 +- drivers/scsi/megaraid/megaraid_sas_base.c | 47 +++++- drivers/scsi/megaraid/megaraid_sas_fusion.c | 176 ++++++++++++++------ 3 files changed, 181 insertions(+), 54 deletions(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/2] *** scsi: megaraid_sas: Fix resource leak in case of probe failure ***
by Luo Gengkun 01 Jun '24

01 Jun '24

*** BLURB HERE *** Chandrakanth Patil (1): scsi: megaraid_sas: Fix resource leak in case of probe failure Shivasharan S (1): scsi: megaraid_sas: Add watchdog thread to detect Firmware fault drivers/scsi/megaraid/megaraid_sas.h | 12 +- drivers/scsi/megaraid/megaraid_sas_base.c | 47 +++++- drivers/scsi/megaraid/megaraid_sas_fusion.c | 176 ++++++++++++++------ 3 files changed, 181 insertions(+), 54 deletions(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/2] *** scsi: megaraid_sas: Fix resource leak in case of probe failure ***
by Luo Gengkun 01 Jun '24

01 Jun '24

*** BLURB HERE *** Chandrakanth Patil (1): scsi: megaraid_sas: Fix resource leak in case of probe failure Shivasharan S (1): scsi: megaraid_sas: Add watchdog thread to detect Firmware fault drivers/scsi/megaraid/megaraid_sas.h | 12 +- drivers/scsi/megaraid/megaraid_sas_base.c | 47 +++++- drivers/scsi/megaraid/megaraid_sas_fusion.c | 176 ++++++++++++++------ 3 files changed, 181 insertions(+), 54 deletions(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/2] CVE-2021-47511
by Liu Shixin 01 Jun '24

01 Jun '24

Fix CVE-2021-47511. Takashi Iwai (2): ALSA: pcm: oss: Fix a few more UBSAN fixes ALSA: pcm: oss: Fix negative period/buffer sizes sound/core/oss/pcm_oss.c | 40 ++++++++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 14 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS v2] ipack: ipoctal: fix module reference leak
by Liu Shixin 01 Jun '24

01 Jun '24

From: Johan Hovold <johan(a)kernel.org> stable inclusion from stable-v4.19.209 commit 9c5b77a7ffc983b2429ce158b50497c5d3c86a69 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4NR CVE: CVE-2021-47403 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit bb8a4fcb2136508224c596a7e665bdba1d7c3c27 upstream. A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty. Fixes: 82a82340bab6 ("ipoctal: get carrier driver to avoid rmmod") Cc: stable(a)vger.kernel.org # 3.18 Cc: Federico Vaga <federico.vaga(a)cern.ch> Acked-by: Samuel Iglesias Gonsalvez <siglesias(a)igalia.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- drivers/ipack/devices/ipoctal.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index aeadeaafdb26..dc39a84086c7 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -86,22 +86,34 @@ static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty) return 0; } -static int ipoctal_open(struct tty_struct *tty, struct file *file) +static int ipoctal_install(struct tty_driver *driver, struct tty_struct *tty) { struct ipoctal_channel *channel = dev_get_drvdata(tty->dev); struct ipoctal *ipoctal = chan_to_ipoctal(channel, tty->index); - int err; - - tty->driver_data = channel; + int res; if (!ipack_get_carrier(ipoctal->dev)) return -EBUSY; - err = tty_port_open(&channel->tty_port, tty, file); - if (err) - ipack_put_carrier(ipoctal->dev); + res = tty_standard_install(driver, tty); + if (res) + goto err_put_carrier; + + tty->driver_data = channel; + + return 0; + +err_put_carrier: + ipack_put_carrier(ipoctal->dev); + + return res; +} + +static int ipoctal_open(struct tty_struct *tty, struct file *file) +{ + struct ipoctal_channel *channel = tty->driver_data; - return err; + return tty_port_open(&channel->tty_port, tty, file); } static void ipoctal_reset_stats(struct ipoctal_stats *stats) @@ -663,6 +675,7 @@ static void ipoctal_cleanup(struct tty_struct *tty) static const struct tty_operations ipoctal_fops = { .ioctl = NULL, + .install = ipoctal_install, .open = ipoctal_open, .close = ipoctal_close, .write = ipoctal_write_tty, -- 2.25.1

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[PATCH openEuler-1.0-LTS] ipack: ipoctal: fix module reference leak
by Liu Shixin 01 Jun '24

01 Jun '24

From: Johan Hovold <johan(a)kernel.org> stable inclusion from stable-v4.19.209 commit 9c5b77a7ffc983b2429ce158b50497c5d3c86a69 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4NR CVE: CVE-2021-47403 -------------------------------- commit bb8a4fcb2136508224c596a7e665bdba1d7c3c27 upstream. A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty. Fixes: 82a82340bab6 ("ipoctal: get carrier driver to avoid rmmod") Cc: stable(a)vger.kernel.org # 3.18 Cc: Federico Vaga <federico.vaga(a)cern.ch> Acked-by: Samuel Iglesias Gonsalvez <siglesias(a)igalia.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- drivers/ipack/devices/ipoctal.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index aeadeaafdb26..dc39a84086c7 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -86,22 +86,34 @@ static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty) return 0; } -static int ipoctal_open(struct tty_struct *tty, struct file *file) +static int ipoctal_install(struct tty_driver *driver, struct tty_struct *tty) { struct ipoctal_channel *channel = dev_get_drvdata(tty->dev); struct ipoctal *ipoctal = chan_to_ipoctal(channel, tty->index); - int err; - - tty->driver_data = channel; + int res; if (!ipack_get_carrier(ipoctal->dev)) return -EBUSY; - err = tty_port_open(&channel->tty_port, tty, file); - if (err) - ipack_put_carrier(ipoctal->dev); + res = tty_standard_install(driver, tty); + if (res) + goto err_put_carrier; + + tty->driver_data = channel; + + return 0; + +err_put_carrier: + ipack_put_carrier(ipoctal->dev); + + return res; +} + +static int ipoctal_open(struct tty_struct *tty, struct file *file) +{ + struct ipoctal_channel *channel = tty->driver_data; - return err; + return tty_port_open(&channel->tty_port, tty, file); } static void ipoctal_reset_stats(struct ipoctal_stats *stats) @@ -663,6 +675,7 @@ static void ipoctal_cleanup(struct tty_struct *tty) static const struct tty_operations ipoctal_fops = { .ioctl = NULL, + .install = ipoctal_install, .open = ipoctal_open, .close = ipoctal_close, .write = ipoctal_write_tty, -- 2.25.1

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[PATCH openEuler-1.0-LTS] pinctrl: core: delete incorrect free in pinctrl_enable()
by Yang Yingliang 01 Jun '24

01 Jun '24

From: Dan Carpenter <dan.carpenter(a)linaro.org> mainline inclusion from mainline-v6.9-rc7 commit 5038a66dad0199de60e5671603ea6623eb9e5c79 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM8C CVE: CVE-2024-36940 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The "pctldev" struct is allocated in devm_pinctrl_register_and_init(). It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(), so freeing it in pinctrl_enable() will lead to a double free. The devm_pinctrl_dev_release() function frees the pindescs and destroys the mutex as well. Fixes: 6118714275f0 ("pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Message-ID: <578fbe56-44e9-487c-ae95-29b695650f7c(a)moroto.mountain> Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> Conflicts: drivers/pinctrl/core.c [yyl: adjust context] Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/pinctrl/core.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index c6ff4d5fa482..b50968f0ce2e 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -2037,11 +2037,7 @@ int pinctrl_enable(struct pinctrl_dev *pctldev) error = pinctrl_claim_hogs(pctldev); if (error) { - dev_err(pctldev->dev, "could not claim hogs: %i\n", - error); - mutex_destroy(&pctldev->mutex); - kfree(pctldev); - + dev_err(pctldev->dev, "could not claim hogs: %i\n", error); return error; } -- 2.25.1

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[PATCH OLK-6.6 0/2] arm64: cpufeature: Both the major and the minor version numbers need to be checked
by Zeng Heng 01 Jun '24

01 Jun '24

Zeng Heng (2): arm64: cpufeature: Both the major and the minor version numbers need to be checked arm64/mpam: skip mpam initialize under kdump kernel arch/arm64/include/asm/cpufeature.h | 7 +++++++ arch/arm64/kernel/cpufeature.c | 13 +++++++++---- arch/arm64/kernel/cpuinfo.c | 3 ++- arch/arm64/kernel/mpam.c | 4 ++++ 4 files changed, 22 insertions(+), 5 deletions(-) -- 2.25.1

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