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Patch "xen: XEN_ACPI_PROCESSOR is Dom0-only" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled xen: XEN_ACPI_PROCESSOR is Dom0-only to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: xen-xen_acpi_processor-is-dom0-only.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Jan Beulich <JBeulich(a)suse.com> Date: Tue, 12 Dec 2017 03:18:11 -0700 Subject: xen: XEN_ACPI_PROCESSOR is Dom0-only From: Jan Beulich <JBeulich(a)suse.com> [ Upstream commit c4f9d9cb2c29ff04c6b4bb09b72802d8aedfc7cb ] Add a respective dependency. Signed-off-by: Jan Beulich <jbeulich(a)suse.com> Reviewed-by: Juergen Gross <jgross(a)suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky(a)oracle.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/xen/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -222,7 +222,7 @@ config XEN_ACPI_HOTPLUG_CPU config XEN_ACPI_PROCESSOR tristate "Xen ACPI processor" - depends on XEN && X86 && ACPI_PROCESSOR && CPU_FREQ + depends on XEN && XEN_DOM0 && X86 && ACPI_PROCESSOR && CPU_FREQ default m help This ACPI processor uploads Power Management information to the Xen Patches currently in stable-queue which might be from JBeulich(a)suse.com are queue-3.18/xen-xen_acpi_processor-is-dom0-only.patch

7 years, 6 months

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Patch "x86/mm/kmmio: Fix mmiotrace for page unaligned addresses" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/mm/kmmio: Fix mmiotrace for page unaligned addresses to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-mm-kmmio-fix-mmiotrace-for-page-unaligned-addresses.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Karol Herbst <kherbst(a)redhat.com> Date: Mon, 27 Nov 2017 08:51:39 +0100 Subject: x86/mm/kmmio: Fix mmiotrace for page unaligned addresses From: Karol Herbst <kherbst(a)redhat.com> [ Upstream commit 6d60ce384d1d5ca32b595244db4077a419acc687 ] If something calls ioremap() with an address not aligned to PAGE_SIZE, the returned address might be not aligned as well. This led to a probe registered on exactly the returned address, but the entire page was armed for mmiotracing. On calling iounmap() the address passed to unregister_kmmio_probe() was PAGE_SIZE aligned by the caller leading to a complete freeze of the machine. We should always page align addresses while (un)registerung mappings, because the mmiotracer works on top of pages, not mappings. We still keep track of the probes based on their real addresses and lengths though, because the mmiotrace still needs to know what are mapped memory regions. Also move the call to mmiotrace_iounmap() prior page aligning the address, so that all probes are unregistered properly, otherwise the kernel ends up failing memory allocations randomly after disabling the mmiotracer. Tested-by: Lyude <lyude(a)redhat.com> Signed-off-by: Karol Herbst <kherbst(a)redhat.com> Acked-by: Pekka Paalanen <ppaalanen(a)gmail.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: nouveau(a)lists.freedesktop.org Link: http://lkml.kernel.org/r/20171127075139.4928-1-kherbst@redhat.com Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/mm/ioremap.c | 4 ++-- arch/x86/mm/kmmio.c | 12 +++++++----- 2 files changed, 9 insertions(+), 7 deletions(-) --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -296,11 +296,11 @@ void iounmap(volatile void __iomem *addr (void __force *)addr < phys_to_virt(ISA_END_ADDRESS)) return; + mmiotrace_iounmap(addr); + addr = (volatile void __iomem *) (PAGE_MASK & (unsigned long __force)addr); - mmiotrace_iounmap(addr); - /* Use the vm area unlocked, assuming the caller ensures there isn't another iounmap for the same address in parallel. Reuse of the virtual address is prevented by --- a/arch/x86/mm/kmmio.c +++ b/arch/x86/mm/kmmio.c @@ -434,17 +434,18 @@ int register_kmmio_probe(struct kmmio_pr unsigned long flags; int ret = 0; unsigned long size = 0; + unsigned long addr = p->addr & PAGE_MASK; const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK); unsigned int l; pte_t *pte; spin_lock_irqsave(&kmmio_lock, flags); - if (get_kmmio_probe(p->addr)) { + if (get_kmmio_probe(addr)) { ret = -EEXIST; goto out; } - pte = lookup_address(p->addr, &l); + pte = lookup_address(addr, &l); if (!pte) { ret = -EINVAL; goto out; @@ -453,7 +454,7 @@ int register_kmmio_probe(struct kmmio_pr kmmio_count++; list_add_rcu(&p->list, &kmmio_probes); while (size < size_lim) { - if (add_kmmio_fault_page(p->addr + size)) + if (add_kmmio_fault_page(addr + size)) pr_err("Unable to set page fault.\n"); size += page_level_size(l); } @@ -527,19 +528,20 @@ void unregister_kmmio_probe(struct kmmio { unsigned long flags; unsigned long size = 0; + unsigned long addr = p->addr & PAGE_MASK; const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK); struct kmmio_fault_page *release_list = NULL; struct kmmio_delayed_release *drelease; unsigned int l; pte_t *pte; - pte = lookup_address(p->addr, &l); + pte = lookup_address(addr, &l); if (!pte) return; spin_lock_irqsave(&kmmio_lock, flags); while (size < size_lim) { - release_kmmio_fault_page(p->addr + size, &release_list); + release_kmmio_fault_page(addr + size, &release_list); size += page_level_size(l); } list_del_rcu(&p->list); Patches currently in stable-queue which might be from kherbst(a)redhat.com are queue-3.18/x86-mm-kmmio-fix-mmiotrace-for-page-unaligned-addresses.patch

7 years, 6 months

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Patch "usb: build drivers/usb/common/ when USB_SUPPORT is set" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: build drivers/usb/common/ when USB_SUPPORT is set to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-build-drivers-usb-common-when-usb_support-is-set.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Randy Dunlap <rdunlap(a)infradead.org> Date: Fri, 17 Nov 2017 11:00:45 -0800 Subject: usb: build drivers/usb/common/ when USB_SUPPORT is set From: Randy Dunlap <rdunlap(a)infradead.org> [ Upstream commit c9d24f78268be444e803fb2bb138a2f598de9c23 ] PHY drivers can use ULPI interfaces when CONFIG_USB (which is host side support) is not enabled, so also build drivers/usb/ when CONFIG_USB_SUPPORT is enabled so that drivers/usb/common/ is built. ERROR: "ulpi_unregister_driver" [drivers/phy/ti/phy-tusb1210.ko] undefined! ERROR: "__ulpi_register_driver" [drivers/phy/ti/phy-tusb1210.ko] undefined! ERROR: "ulpi_read" [drivers/phy/ti/phy-tusb1210.ko] undefined! ERROR: "ulpi_write" [drivers/phy/ti/phy-tusb1210.ko] undefined! ERROR: "ulpi_unregister_driver" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined! ERROR: "__ulpi_register_driver" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined! ERROR: "ulpi_write" [drivers/phy/qualcomm/phy-qcom-usb-hs.ko] undefined! Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/Makefile | 1 + 1 file changed, 1 insertion(+) --- a/drivers/Makefile +++ b/drivers/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_TC) += tc/ obj-$(CONFIG_UWB) += uwb/ obj-$(CONFIG_USB_PHY) += usb/ obj-$(CONFIG_USB) += usb/ +obj-$(CONFIG_USB_SUPPORT) += usb/ obj-$(CONFIG_PCI) += usb/ obj-$(CONFIG_USB_GADGET) += usb/ obj-$(CONFIG_SERIO) += input/serio/ Patches currently in stable-queue which might be from rdunlap(a)infradead.org are queue-3.18/usb-build-drivers-usb-common-when-usb_support-is-set.patch

7 years, 6 months

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Patch "spi: sun4i: disable clocks in the remove function" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled spi: sun4i: disable clocks in the remove function to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: spi-sun4i-disable-clocks-in-the-remove-function.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Takuo Koguchi <takuo.koguchi(a)gmail.com> Date: Thu, 7 Dec 2017 16:20:14 +0900 Subject: spi: sun4i: disable clocks in the remove function From: Takuo Koguchi <takuo.koguchi(a)gmail.com> [ Upstream commit c810daba0ab5226084a56893a789af427a801146 ] mclk and hclk need to be disabled. Since pm_runtime_disable does not disable the clocks, use pm_runtime_force_suspend instead. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Takuo Koguchi <takuo.koguchi.sw(a)hitachi.com> Acked-by: Maxime Ripard <maxime.ripard(a)free-electrons.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/spi/spi-sun4i.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/spi/spi-sun4i.c +++ b/drivers/spi/spi-sun4i.c @@ -458,7 +458,7 @@ err_free_master: static int sun4i_spi_remove(struct platform_device *pdev) { - pm_runtime_disable(&pdev->dev); + pm_runtime_force_suspend(&pdev->dev); return 0; } Patches currently in stable-queue which might be from takuo.koguchi(a)gmail.com are queue-3.18/spi-sun4i-disable-clocks-in-the-remove-function.patch

7 years, 6 months

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Patch "scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: scripts-kernel-doc-don-t-fail-with-status-0-if-error-encountered-with-none.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Will Deacon <will.deacon(a)arm.com> Date: Wed, 29 Nov 2017 15:20:03 +0000 Subject: scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none From: Will Deacon <will.deacon(a)arm.com> [ Upstream commit e814bccbafece52a24e152d2395b5d49eef55841 ] My bisect scripts starting running into build failures when trying to compile 4.15-rc1 with the builds failing with things like: drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union! The line in question is actually just a #define, but after some digging it turns out that my scripts pass W=1 and since commit 3a025e1d1c2ea ("Add optional check for bad kernel-doc comments") that results in kernel-doc running on each source file. The file in question has a badly formatted comment immediately before the #define: /** * struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for * bus layer usage. */ which causes the regex in dump_struct to fail (lack of braces following struct declaration) and kernel-doc returns 1, which causes the build to fail. Fix the issue by always returning 0 from kernel-doc when invoked with -none. It successfully generates no documentation, and prints out any issues. Cc: Matthew Wilcox <mawilcox(a)microsoft.com> Cc: Jonathan Corbet <corbet(a)lwn.net> Signed-off-by: Will Deacon <will.deacon(a)arm.com> Signed-off-by: Jonathan Corbet <corbet(a)lwn.net> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- scripts/kernel-doc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -2616,4 +2616,4 @@ if ($verbose && $warnings) { print STDERR "$warnings warnings\n"; } -exit($errors); +exit($output_mode eq "none" ? 0 : $errors); Patches currently in stable-queue which might be from will.deacon(a)arm.com are queue-3.18/scripts-kernel-doc-don-t-fail-with-status-0-if-error-encountered-with-none.patch

7 years, 6 months

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Patch "s390/dasd: prevent prefix I/O error" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled s390/dasd: prevent prefix I/O error to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: s390-dasd-prevent-prefix-i-o-error.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Stefan Haberland <sth(a)linux.vnet.ibm.com> Date: Thu, 26 Oct 2017 14:37:35 +0200 Subject: s390/dasd: prevent prefix I/O error From: Stefan Haberland <sth(a)linux.vnet.ibm.com> [ Upstream commit da340f921d3454f1521671c7a5a43ad3331fbe50 ] Prevent that a prefix flag is set based on invalid configuration data. The validity.verify_base flag should only be set for alias devices. Usually the unit address type is either one of base, PAV alias or HyperPAV alias. But in cases where the unit address type is not set or any other value the validity.verify_base flag might be set as well. This would lead to follow on errors. Explicitly check for alias devices and set the validity flag only for them. Signed-off-by: Stefan Haberland <sth(a)linux.vnet.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner(a)linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky(a)de.ibm.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/s390/block/dasd_eckd.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -518,10 +518,12 @@ static int prefix_LRE(struct ccw1 *ccw, pfxdata->validity.define_extent = 1; /* private uid is kept up to date, conf_data may be outdated */ - if (startpriv->uid.type != UA_BASE_DEVICE) { + if (startpriv->uid.type == UA_BASE_PAV_ALIAS) pfxdata->validity.verify_base = 1; - if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) - pfxdata->validity.hyper_pav = 1; + + if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) { + pfxdata->validity.verify_base = 1; + pfxdata->validity.hyper_pav = 1; } /* define extend data (mostly)*/ @@ -2969,10 +2971,12 @@ static int prepare_itcw(struct itcw *itc pfxdata.validity.define_extent = 1; /* private uid is kept up to date, conf_data may be outdated */ - if (startpriv->uid.type != UA_BASE_DEVICE) { + if (startpriv->uid.type == UA_BASE_PAV_ALIAS) + pfxdata.validity.verify_base = 1; + + if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) { pfxdata.validity.verify_base = 1; - if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) - pfxdata.validity.hyper_pav = 1; + pfxdata.validity.hyper_pav = 1; } switch (cmd) { Patches currently in stable-queue which might be from sth(a)linux.vnet.ibm.com are queue-3.18/s390-dasd-prevent-prefix-i-o-error.patch

7 years, 6 months

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Patch "powerpc/perf: Fix oops when grouping different pmu events" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled powerpc/perf: Fix oops when grouping different pmu events to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: powerpc-perf-fix-oops-when-grouping-different-pmu-events.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> Date: Thu, 30 Nov 2017 14:03:22 +0530 Subject: powerpc/perf: Fix oops when grouping different pmu events From: Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> [ Upstream commit 5aa04b3eb6fca63d2e9827be656dcadc26d54e11 ] When user tries to group imc (In-Memory Collections) event with normal event, (sometime) kernel crashes with following log: Faulting instruction address: 0x00000000 [link register ] c00000000010ce88 power_check_constraints+0x128/0x980 ... c00000000010e238 power_pmu_event_init+0x268/0x6f0 c0000000002dc60c perf_try_init_event+0xdc/0x1a0 c0000000002dce88 perf_event_alloc+0x7b8/0xac0 c0000000002e92e0 SyS_perf_event_open+0x530/0xda0 c00000000000b004 system_call+0x38/0xe0 'event_base' field of 'struct hw_perf_event' is used as flags for normal hw events and used as memory address for imc events. While grouping these two types of events, collect_events() tries to interpret imc 'event_base' as a flag, which causes a corruption resulting in a crash. Consider only those events which belongs to 'perf_hw_context' in collect_events(). Signed-off-by: Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> Reviewed-By: Madhavan Srinivasan <maddy(a)linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/powerpc/perf/core-book3s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -1376,7 +1376,7 @@ static int collect_events(struct perf_ev int n = 0; struct perf_event *event; - if (!is_software_event(group)) { + if (group->pmu->task_ctx_nr == perf_hw_context) { if (n >= max_count) return -1; ctrs[n] = group; @@ -1384,7 +1384,7 @@ static int collect_events(struct perf_ev events[n++] = group->hw.config; } list_for_each_entry(event, &group->sibling_list, group_entry) { - if (!is_software_event(event) && + if (event->pmu->task_ctx_nr == perf_hw_context && event->state != PERF_EVENT_STATE_OFF) { if (n >= max_count) return -1; Patches currently in stable-queue which might be from ravi.bangoria(a)linux.vnet.ibm.com are queue-3.18/perf-top-fix-window-dimensions-change-handling.patch queue-3.18/powerpc-perf-fix-oops-when-grouping-different-pmu-events.patch

7 years, 6 months

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Patch "perf top: Fix window dimensions change handling" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled perf top: Fix window dimensions change handling to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: perf-top-fix-window-dimensions-change-handling.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Jiri Olsa <jolsa(a)kernel.org> Date: Tue, 14 Nov 2017 10:23:39 +0100 Subject: perf top: Fix window dimensions change handling From: Jiri Olsa <jolsa(a)kernel.org> [ Upstream commit 89d0aeab4252adc2a7ea693637dd21c588bfa2d1 ] The stdio perf top crashes when we change the terminal window size. The reason is that we assumed we get the perf_top pointer as a signal handler argument which is not the case. Changing the SIGWINCH handler logic to change global resize variable, which is checked in the main thread loop. Signed-off-by: Jiri Olsa <jolsa(a)kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme(a)redhat.com> Tested-by: Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> Cc: Adrian Hunter <adrian.hunter(a)intel.com> Cc: Andi Kleen <andi(a)firstfloor.org> Cc: David Ahern <dsahern(a)gmail.com> Cc: Namhyung Kim <namhyung(a)kernel.org> Cc: Wang Nan <wangnan0(a)huawei.com> Link: http://lkml.kernel.org/n/tip-ysuzwz77oev1ftgvdscn9bpu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/perf/builtin-top.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -70,6 +70,7 @@ #include <linux/types.h> static volatile int done; +static volatile int resize; #define HEADER_LINE_NR 5 @@ -79,10 +80,13 @@ static void perf_top__update_print_entri } static void perf_top__sig_winch(int sig __maybe_unused, - siginfo_t *info __maybe_unused, void *arg) + siginfo_t *info __maybe_unused, void *arg __maybe_unused) { - struct perf_top *top = arg; + resize = 1; +} +static void perf_top__resize(struct perf_top *top) +{ get_term_dimensions(&top->winsize); perf_top__update_print_entries(top); } @@ -461,7 +465,7 @@ static bool perf_top__handle_keypress(st .sa_sigaction = perf_top__sig_winch, .sa_flags = SA_SIGINFO, }; - perf_top__sig_winch(SIGWINCH, NULL, top); + perf_top__resize(top); sigaction(SIGWINCH, &act, NULL); } else { signal(SIGWINCH, SIG_DFL); @@ -997,6 +1001,11 @@ static int __cmd_top(struct perf_top *to if (hits == top->samples) ret = perf_evlist__poll(top->evlist, 100); + + if (resize) { + perf_top__resize(top); + resize = 0; + } } ret = 0; Patches currently in stable-queue which might be from jolsa(a)kernel.org are queue-3.18/perf-top-fix-window-dimensions-change-handling.patch

7 years, 6 months

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Patch "net_sched: red: Avoid illegal values" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled net_sched: red: Avoid illegal values to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: net_sched-red-avoid-illegal-values.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Nogah Frankel <nogahf(a)mellanox.com> Date: Mon, 4 Dec 2017 13:31:11 +0200 Subject: net_sched: red: Avoid illegal values From: Nogah Frankel <nogahf(a)mellanox.com> [ Upstream commit 8afa10cbe281b10371fee5a87ab266e48d71a7f9 ] Check the qmin & qmax values doesn't overflow for the given Wlog value. Check that qmin <= qmax. Fixes: a783474591f2 ("[PKT_SCHED]: Generic RED layer") Signed-off-by: Nogah Frankel <nogahf(a)mellanox.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- include/net/red.h | 11 +++++++++++ net/sched/sch_choke.c | 3 +++ net/sched/sch_gred.c | 3 +++ net/sched/sch_red.c | 2 ++ net/sched/sch_sfq.c | 3 +++ 5 files changed, 22 insertions(+) --- a/include/net/red.h +++ b/include/net/red.h @@ -167,6 +167,17 @@ static inline void red_set_vars(struct r v->qcount = -1; } +static inline bool red_check_params(u32 qth_min, u32 qth_max, u8 Wlog) +{ + if (fls(qth_min) + Wlog > 32) + return false; + if (fls(qth_max) + Wlog > 32) + return false; + if (qth_max < qth_min) + return false; + return true; +} + static inline void red_set_parms(struct red_parms *p, u32 qth_min, u32 qth_max, u8 Wlog, u8 Plog, u8 Scell_log, u8 *stab, u32 max_P) --- a/net/sched/sch_choke.c +++ b/net/sched/sch_choke.c @@ -431,6 +431,9 @@ static int choke_change(struct Qdisc *sc ctl = nla_data(tb[TCA_CHOKE_PARMS]); + if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog)) + return -EINVAL; + if (ctl->limit > CHOKE_MAX_QUEUE) return -EINVAL; --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -388,6 +388,9 @@ static inline int gred_change_vq(struct struct gred_sched *table = qdisc_priv(sch); struct gred_sched_data *q = table->tab[dp]; + if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog)) + return -EINVAL; + if (!q) { table->tab[dp] = q = *prealloc; *prealloc = NULL; --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -199,6 +199,8 @@ static int red_change(struct Qdisc *sch, max_P = tb[TCA_RED_MAX_P] ? nla_get_u32(tb[TCA_RED_MAX_P]) : 0; ctl = nla_data(tb[TCA_RED_PARMS]); + if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog)) + return -EINVAL; if (ctl->limit > 0) { child = fifo_create_dflt(sch, &bfifo_qdisc_ops, ctl->limit); --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -653,6 +653,9 @@ static int sfq_change(struct Qdisc *sch, if (ctl->divisor && (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536)) return -EINVAL; + if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max, + ctl_v1->Wlog)) + return -EINVAL; if (ctl_v1 && ctl_v1->qth_min) { p = kmalloc(sizeof(*p), GFP_KERNEL); if (!p) Patches currently in stable-queue which might be from nogahf(a)mellanox.com are queue-3.18/net_sched-red-avoid-devision-by-zero.patch queue-3.18/net_sched-red-avoid-illegal-values.patch

7 years, 6 months

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Patch "perf bench numa: Fixup discontiguous/sparse numa nodes" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled perf bench numa: Fixup discontiguous/sparse numa nodes to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: perf-bench-numa-fixup-discontiguous-sparse-numa-nodes.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Fri Feb 23 12:01:27 CET 2018 From: Satheesh Rajendran <sathnaga(a)linux.vnet.ibm.com> Date: Wed, 22 Nov 2017 22:13:53 +0530 Subject: perf bench numa: Fixup discontiguous/sparse numa nodes From: Satheesh Rajendran <sathnaga(a)linux.vnet.ibm.com> [ Upstream commit 321a7c35c90cc834851ceda18a8ee18f1d032b92 ] Certain systems are designed to have sparse/discontiguous nodes. On such systems, 'perf bench numa' hangs, shows wrong number of nodes and shows values for non-existent nodes. Handle this by only taking nodes that are exposed by kernel to userspace. Signed-off-by: Satheesh Rajendran <sathnaga(a)linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar(a)linux.vnet.ibm.com> Acked-by: Naveen N. Rao <naveen.n.rao(a)linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1edbcd353c009e109e93d78f2f46381930c340fe.151136864… Signed-off-by: Balamuruhan S <bala24(a)linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/perf/bench/numa.c | 56 +++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 51 insertions(+), 5 deletions(-) --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -203,6 +203,47 @@ static const char * const numa_usage[] = NULL }; +/* + * To get number of numa nodes present. + */ +static int nr_numa_nodes(void) +{ + int i, nr_nodes = 0; + + for (i = 0; i < g->p.nr_nodes; i++) { + if (numa_bitmask_isbitset(numa_nodes_ptr, i)) + nr_nodes++; + } + + return nr_nodes; +} + +/* + * To check if given numa node is present. + */ +static int is_node_present(int node) +{ + return numa_bitmask_isbitset(numa_nodes_ptr, node); +} + +/* + * To check given numa node has cpus. + */ +static bool node_has_cpus(int node) +{ + struct bitmask *cpu = numa_allocate_cpumask(); + unsigned int i; + + if (cpu && !numa_node_to_cpus(node, cpu)) { + for (i = 0; i < cpu->size; i++) { + if (numa_bitmask_isbitset(cpu, i)) + return true; + } + } + + return false; /* lets fall back to nocpus safely */ +} + static cpu_set_t bind_to_cpu(int target_cpu) { cpu_set_t orig_mask, mask; @@ -231,12 +272,12 @@ static cpu_set_t bind_to_cpu(int target_ static cpu_set_t bind_to_node(int target_node) { - int cpus_per_node = g->p.nr_cpus/g->p.nr_nodes; + int cpus_per_node = g->p.nr_cpus / nr_numa_nodes(); cpu_set_t orig_mask, mask; int cpu; int ret; - BUG_ON(cpus_per_node*g->p.nr_nodes != g->p.nr_cpus); + BUG_ON(cpus_per_node * nr_numa_nodes() != g->p.nr_cpus); BUG_ON(!cpus_per_node); ret = sched_getaffinity(0, sizeof(orig_mask), &orig_mask); @@ -636,7 +677,7 @@ static int parse_setup_node_list(void) int i; for (i = 0; i < mul; i++) { - if (t >= g->p.nr_tasks) { + if (t >= g->p.nr_tasks || !node_has_cpus(bind_node)) { printf("\n# NOTE: ignoring bind NODEs starting at NODE#%d\n", bind_node); goto out; } @@ -943,6 +984,8 @@ static void calc_convergence(double runt sum = 0; for (node = 0; node < g->p.nr_nodes; node++) { + if (!is_node_present(node)) + continue; nr = nodes[node]; nr_min = min(nr, nr_min); nr_max = max(nr, nr_max); @@ -963,8 +1006,11 @@ static void calc_convergence(double runt process_groups = 0; for (node = 0; node < g->p.nr_nodes; node++) { - int processes = count_node_processes(node); + int processes; + if (!is_node_present(node)) + continue; + processes = count_node_processes(node); nr = nodes[node]; tprintf(" %2d/%-2d", nr, processes); @@ -1262,7 +1308,7 @@ static void print_summary(void) printf("\n ###\n"); printf(" # %d %s will execute (on %d nodes, %d CPUs):\n", - g->p.nr_tasks, g->p.nr_tasks == 1 ? "task" : "tasks", g->p.nr_nodes, g->p.nr_cpus); + g->p.nr_tasks, g->p.nr_tasks == 1 ? "task" : "tasks", nr_numa_nodes(), g->p.nr_cpus); printf(" # %5dx %5ldMB global shared mem operations\n", g->p.nr_loops, g->p.bytes_global/1024/1024); printf(" # %5dx %5ldMB process shared mem operations\n", Patches currently in stable-queue which might be from sathnaga(a)linux.vnet.ibm.com are queue-3.18/perf-bench-numa-fixup-discontiguous-sparse-numa-nodes.patch

7 years, 6 months

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