- 10 7月, 2015 13 次提交
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由 Linus Torvalds 提交于
Merge hpfs updates from Mikulas Patocka. Mainly fstrim support, with some minor other cleanups. These were actually sent during the merge window, but I wanted to wait for the FSTRIM compat handling cleanup before applying them. Mikulas sent that earlier today. * emailed patches from Mikulas Patocka <mikulas@twibright.com>: hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead hpfs: kstrdup() out of memory handling hpfs: Remove unessary cast hpfs: add fstrim support
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由 Joe Perches 提交于
Removing unnecessary static buffers is good. Use the vsprintf %pV extension instead. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NMikulas Patocka <mikulas@twibright.com> Cc: stable@vger.kernel.org # v2.6.36+ Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sanidhya Kashyap 提交于
There is a possibility of nothing being allocated to the new_opts in case of memory pressure, therefore return ENOMEM for such case. Signed-off-by: NSanidhya Kashyap <sanidhya.gatech@gmail.com> Signed-off-by: NMikulas Patocka <mikulas@twibright.com> Cc: stable@vger.kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Firo Yang 提交于
Avoid a pointless kmem_cache_alloc() return value cast in fs/hpfs/super.c::hpfs_alloc_inode() Signed-off-by: NFiro Yang <firogm@gmail.com> Signed-off-by: NMikulas Patocka <mikulas@twibright.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mikulas Patocka 提交于
This patch adds support for fstrim to the HPFS filesystem. Signed-off-by: NMikulas Patocka <mikulas@twibright.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client由 Linus Torvalds 提交于
Pull Ceph fixes from Sage Weil: "There is a fix for CephFS and RBD when used within containers/namespaces, and a fix for the address learning the client is supposed to do when initially talking to the Ceph cluster. There are also two patches updating MAINTAINERS. One breaks out the common Ceph code shared by fs/ceph and drivers/block/rbd.c into a separate entry with the appropriate maintainers listed. The second adds a second reference to the github tree where the Ceph client development takes place (before it is pushed to korg and then to you). The goal here is to move closer to a situation where Ilya Dryomov or one of the other maintainers can push things to you if I am unavailable. Ilya has done most of the work preparing branches for upstream recently; you should not be surprised to hear from him if I am trapped in some internet-less wasteland or hit by a bus or something. In the meantime, we'll work on getting him added to the kernel web of trust" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: MAINTAINERS: add secondary tree for ceph modules MAINTAINERS: update ceph entries libceph: treat sockaddr_storage with uninitialized family as blank libceph: enable ceph in a non-default network namespace
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由 Mikulas Patocka 提交于
The FITRIM ioctl has the same arguments on 32-bit and 64-bit architectures, so we can add it to the list of compatible ioctls and drop it from compat_ioctl method of various filesystems. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ted Ts'o <tytso@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
The firmware class uevent function accessed the "fw_priv->buf" buffer without the proper locking and testing for NULL. This is an old bug (looks like it goes back to 2012 and commit 1244691c: "firmware loader: introduce firmware_buf"), but for some reason it's triggering only now in 4.2-rc1. Shuah Khan is trying to bisect what it is that causes this to trigger more easily, but in the meantime let's just fix the bug since others are hitting it too (at least Ingo reports having seen it as well). Reported-and-tested-by: NShuah Khan <shuahkh@osg.samsung.com> Acked-by: NMing Lei <ming.lei@canonical.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kirill A. Shutemov 提交于
Reading page fault handler code I've noticed that under right circumstances kernel would map anonymous pages into file mappings: if the VMA doesn't have vm_ops->fault() and the VMA wasn't fully populated on ->mmap(), kernel would handle page fault to not populated pte with do_anonymous_page(). Let's change page fault handler to use do_anonymous_page() only on anonymous VMA (->vm_ops == NULL) and make sure that the VMA is not shared. For file mappings without vm_ops->fault() or shred VMA without vm_ops, page fault on pte_none() entry would lead to SIGBUS. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: NOleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Willy Tarreau <w@1wt.eu> Cc: stable@vger.kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sage Weil 提交于
The Ceph kernel code is primarily developed in the github tree, and only pushed to the korg tree before going to Linus. If Sage is unavailable and another maintainer needs to push something upstream, pull requests may originate from the github tree instead of Sage's korg tree. Signed-off-by: NSage Weil <sage@redhat.com> Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
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由 Sage Weil 提交于
- The Ceph common code is used by both fs/ceph and drivers/block/rbd. Add a separate maintainers entry. - Add Ilya as libceph maintainer and cephfs submaintainer. - Attribute Documentation/ABI/testing/sysfs-bus-rbd to rbd. - ceph-devel@vger.kernel.org should be L, not M in rbd entry. Signed-off-by: NSage Weil <sage@redhat.com> Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
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由 Ilya Dryomov 提交于
addr_is_blank() should return true if family is neither AF_INET nor AF_INET6. This is what its counterpart entity_addr_t::is_blank_ip() is doing and it is the right thing to do: in process_banner() we check if our address is blank and if it is "learn" it from our peer. As it is, we never learn our address and always send out a blank one. This goes way back to ceph.git commit dd732cbfc1c9 ("use sockaddr_storage; and some ipv6 support groundwork") from 2009. While at at, do not open-code ipv6_addr_any() and use INADDR_ANY constant instead of 0. Signed-off-by: NIlya Dryomov <idryomov@gmail.com> Reviewed-by: NSage Weil <sage@redhat.com>
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由 Ilya Dryomov 提交于
Grab a reference on a network namespace of the 'rbd map' (in case of rbd) or 'mount' (in case of ceph) process and use that to open sockets instead of always using init_net and bailing if network namespace is anything but init_net. Be careful to not share struct ceph_client instances between different namespaces and don't add any code in the !CONFIG_NET_NS case. This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>. Signed-off-by: NIlya Dryomov <idryomov@gmail.com> Reviewed-by: NSage Weil <sage@redhat.com>
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- 09 7月, 2015 6 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management and ACPI updates from Rafael Wysocki: "These are fixes on top of the previous PM+ACPI pull requests (including one fix for a 4.1 regression) and two commits adding _CLS-based device enumeration support to the ACPI core and the ATA subsystem that waited for the latest ACPICA changes to be merged. Specifics: - Fix for an ACPI resources management regression introduced during the 4.1 cycle (that unfortunately went into -stable) effectively reverting the bad commit along with the recent fixups on top of it and using an alternative approach to address the underlying issue (Rafael J Wysocki). - Fix for a memory leak and an incorrect return value in an error code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J Wysocki). - Fix for a leftover dangling pointer in an error code path in the new wakeup IRQ support code (Rafael J Wysocki). - Fix to prevent infinite loops (due to errors in other places) from happening in the core generic PM domains support code (Geert Uytterhoeven). - Hibernation documentation update/clarification (Uwe Geuder). - Support for _CLS-based device enumeration in the ACPI core and in the ATA subsystem (Suravee Suthikulpanit)" * tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / wakeirq: Avoid setting power.wakeirq too hastily ata: ahci_platform: Add ACPI _CLS matching ACPI / scan: Add support for ACPI _CLS device matching PM / hibernate: clarify resume documentation PM / Domains: Avoid infinite loops in attach/detach code ACPI / LPSS: Fix up acpi_lpss_create_device() ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile由 Linus Torvalds 提交于
Pull arch/tile fix from Chris Metcalf: "This fix eliminates a "section mismatch" warning caused by the new __ex_table checking code in modpost" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: modpost: work correctly with tile coldtext sections
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux由 Linus Torvalds 提交于
Pull module fix from Rusty Russell: "Single fix: missing rbtree removal in the module load failure path. Easy to trigger with bad params. Thanks to Peter Zijlstra and Arthur Marsh for going around on this one" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: Fix load_module() error path
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由 Chris Metcalf 提交于
The tilegx and tilepro compilers use .coldtext for their unlikely executed text section name, so an __attribute__((cold)) function will (when compiled with higher optimization levels) land in the .coldtext section. Modify modpost to add .coldtext to the set of OTHER_TEXT_SECTIONS so we don't get warnings about referencing such a section in an __ex_table block, and then also modify arch/tile/lib/memcpy_user_64.c so that it uses plain ".coldtext" instead of ".coldtext.memcpy". The latter naming is a relic of an earlier use of -ffunction-sections, which we no longer use by default. Signed-off-by: NChris Metcalf <cmetcalf@ezchip.com> Acked-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Peter Zijlstra 提交于
The load_module() error path frees a module but forgot to take it out of the mod_tree, leaving a dangling entry in the tree, causing havoc. Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reported-by: NArthur Marsh <arthur.marsh@internode.on.net> Tested-by: NArthur Marsh <arthur.marsh@internode.on.net> Fixes: 93c2e105 ("module: Optimize __module_address() using a latched RB-tree") Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Linus Torvalds 提交于
The "fix" in commit 0b08c5e5 ("audit: Fix check of return value of strnlen_user()") didn't fix anything, it broke things. As reported by Steven Rostedt: "Yes, strnlen_user() returns 0 on fault, but if you look at what len is set to, than you would notice that on fault len would be -1" because we just subtracted one from the return value. So testing against 0 doesn't test for a fault condition, it tests against a perfectly valid empty string. Also fix up the usual braindamage wrt using WARN_ON() inside a conditional - make it part of the conditional and remove the explicit unlikely() (which is already part of the WARN_ON*() logic, exactly so that you don't have to write unreadable code. Reported-and-tested-by: NSteven Rostedt <rostedt@goodmis.org> Cc: Jan Kara <jack@suse.cz> Cc: Paul Moore <pmoore@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 7月, 2015 5 次提交
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git://ftp.arm.linux.org.uk/~rmk/linux-arm由 Linus Torvalds 提交于
Pull ARM updates from Russell King: "These are late by a week; they should have been merged during the merge window, but unfortunately, the ARM kernel build/boot farms were indicating random failures, and it wasn't clear whether the cause was something in these changes or something during the merge window. This is a set of merge window fixes with some documentation additions" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: avoid unwanted GCC memset()/memcpy() optimisations for IO variants ARM: pgtable: document mapping types ARM: io: convert ioremap*() to functions ARM: io: fix ioremap_wt() implementation ARM: io: document ARM specific behaviour of ioremap*() implementations ARM: fix lockdep unannotated irqs-off warning ARM: 8397/1: fix vdsomunge not to depend on glibc specific error.h ARM: add helpful message when truncating physical memory ARM: add help text for HIGHPTE configuration entry ARM: fix DEBUG_SET_MODULE_RONX build dependencies ARM: 8396/1: use phys_addr_t in pfn_to_kaddr() ARM: 8394/1: update memblock limit after mapping lowmem ARM: 8393/1: smp: Fix suspicious RCU usage with ipi tracepoints
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由 Tomas Winkler 提交于
In function mei_nfc_host_exit mei_cl_remove_device cannot be called under the device mutex as device removing flow invokes the device driver remove handler that calls in turn to mei_cl_disable_device which naturally acquires the device mutex. Also remove mei_cl_bus_remove_devices which has the same issue, but is never executed as currently the only device on the mei client bus is NFC and a new device cannot be easily added till the bus revamp is completed. This fixes regression caused by commit be9b720a ("mei_phy: move all nfc logic from mei driver to nfc") Prior to this change the nfc driver remove handler called to no-op disable function while actual nfc device was disabled directly from the mei driver. Reported-by: NLinus Torvalds <torvalds@linux-foundation.org> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rafael J. Wysocki 提交于
* acpi-scan: ata: ahci_platform: Add ACPI _CLS matching ACPI / scan: Add support for ACPI _CLS device matching
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由 Rafael J. Wysocki 提交于
* acpi-pnp: ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage * acpi-soc: ACPI / LPSS: Fix up acpi_lpss_create_device() * pm-domains: PM / Domains: Avoid infinite loops in attach/detach code * pm-sleep: PM / hibernate: clarify resume documentation
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由 Rafael J. Wysocki 提交于
* pm-wakeirq: PM / wakeirq: Avoid setting power.wakeirq too hastily
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- 07 7月, 2015 9 次提交
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由 Russell King 提交于
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由 Rafael J. Wysocki 提交于
If dev_pm_attach_wake_irq() fails, the device's power.wakeirq field should not be set to point to the struct wake_irq passed to that function, as that object will be freed going forward. For this reason, make dev_pm_attach_wake_irq() first call device_wakeup_attach_irq() and only set the device's power.wakeirq field if that's successful. That requires device_wakeup_attach_irq() to be called under the device's power.lock lock, but since dev_pm_attach_wake_irq() is the only caller of it, the requisite changes are easy to make. Fixes: 4990d4fe (PM / Wakeirq: Add automated device wake IRQ handling) Reported-by: NFelipe Balbi <balbi@ti.com> Tested-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf fixes from Ingo Molnar: - fix the perf build, by fixing the rbtree.c sharing bug between kernel and tools/perf by creating a local copy of rbtree.c (more will be done for v4.3) - fix an AUX buffer (Intel-PT support) refcounting bug - fix copy_from_user_nmi() return value" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix copy_from_user_nmi() return if range is not ok perf: Fix AUX buffer refcounting tools: Copy rbtree_augmented.h from the kernel tools: Move rbtree.h from tools/perf/ tools: Copy lib/rbtree.c to tools/lib/ perf tools: Copy rbtree.h from the kernel tools: Adopt {READ,WRITE_ONCE} from the kernel
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由 Suthikulpanit, Suravee 提交于
This patch adds ACPI supports for AHCI platform driver, which uses _CLS method to match the device. The following is an example of ASL structure in DSDT for a SATA controller, which contains _CLS package to be matched by the ahci_platform driver: Device (AHC0) // AHCI Controller { Name(_HID, "AMDI0600") Name (_CCA, 1) Name (_CLS, Package (3) { 0x01, // Base Class: Mass Storage 0x06, // Sub-Class: serial ATA 0x01, // Interface: AHCI }) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 } }) } Also, since ATA driver should not require PCI support for ATA_ACPI, this patch removes dependency in the driver/ata/Kconfig. Acked-by: NTejun Heo <tj@kernel.org> Acked-by: NMika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org> Signed-off-by: NSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Suthikulpanit, Suravee 提交于
Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver acpi_match_table to match devices. However, for generic drivers, we do not want to list _HID for all supported devices. Also, certain classes of devices do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS, which specifies PCI-defined class code (i.e. base-class, subclass and programming interface). This patch adds support for matching ACPI devices using the _CLS method. To support loadable module, current design uses _HID or _CID to match device's modalias. With the new way of matching with _CLS this would requires modification to the current ACPI modalias key to include _CLS. This patch appends PCI-defined class-code to the existing ACPI modalias as following. acpi:<HID>:<CID1>:<CID2>:..:<CIDn>:<bbsspp>: E.g: # cat /sys/devices/platform/AMDI0600:00/modalias acpi:AMDI0600:010601: where bb is th base-class code, ss is te sub-class code, and pp is the programming interface code Since there would not be _HID/_CID in the ACPI matching table of the driver, this patch adds a field to acpi_device_id to specify the matching _CLS. static const struct acpi_device_id ahci_acpi_match[] = { { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, {}, }; In this case, the corresponded entry in modules.alias file would be: alias acpi*:010601:* ahci_platform Acked-by: NMika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org> Signed-off-by: NSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Uwe Geuder 提交于
it was not the whole truth that kernel mode cannot be used with swap on LVM Signed-off-by: NUwe Geuder <linuxkernel2015-ugeuder@snkmail.com> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Geert Uytterhoeven 提交于
If pm_genpd_{add,remove}_device() keeps on failing with -EAGAIN, we end up with an infinite loop in genpd_dev_pm_{at,de}tach(). This may happen due to a genpd.prepared_count imbalance. This is a bug elsewhere, but it will result in a system lock up, possibly during reboot of an otherwise functioning system. To avoid this, put a limit on the maximum number of loop iterations, using an exponential back-off mechanism. If the limit is reached, the operation will just fail. An error message is already printed. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Rafael J. Wysocki 提交于
Fix a return value (which should be a negative error code) and a memory leak (the list allocated by acpi_dev_get_resources() needs to be freed on ioremap() errors too) in acpi_lpss_create_device() introduced by commit 4483d59e 'ACPI / LPSS: check the result of ioremap()'. Fixes: 4483d59e 'ACPI / LPSS: check the result of ioremap()' Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Cc: 4.0+ <stable@vger.kernel.org> # 4.0+ Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Rafael J. Wysocki 提交于
This effectively reverts the following three commits: 7bc10388 ACPI / resources: free memory on error in add_region_before() 0f1b414d ACPI / PNP: Avoid conflicting resource reservations b9a5e5e1 ACPI / init: Fix the ordering of acpi_reserve_resources() (commit b9a5e5e1 introduced regressions some of which, but not all, were addressed by commit 0f1b414d and commit 7bc10388 was a fixup on top of the latter) and causes ACPI fixed hardware resources to be reserved at the fs_initcall_sync stage of system initialization. The story is as follows. First, a boot regression was reported due to an apparent resource reservation ordering change after a commit that shouldn't lead to such changes. Investigation led to the conclusion that the problem happened because acpi_reserve_resources() was executed at the device_initcall() stage of system initialization which wasn't strictly ordered with respect to driver initialization (and with respect to the initialization of the pcieport driver in particular), so a random change causing the device initcalls to be run in a different order might break things. The response to that was to attempt to run acpi_reserve_resources() as soon as we knew that ACPI would be in use (commit b9a5e5e1). However, that turned out to be too early, because it caused resource reservations made by the PNP system driver to fail on at least one system and that failure was addressed by commit 0f1b414d. That fix still turned out to be insufficient, though, because calling acpi_reserve_resources() before the fs_initcall stage of system initialization caused a boot regression to happen on the eCAFE EC-800-H20G/S netbook. That meant that we only could call acpi_reserve_resources() at the fs_initcall initialization stage or later, but then we might just as well call it after the PNP initalization in which case commit 0f1b414d wouldn't be necessary any more. For this reason, the changes made by commit 0f1b414d are reverted (along with a memory leak fixup on top of that commit), the changes made by commit b9a5e5e1 that went too far are reverted too and acpi_reserve_resources() is changed into fs_initcall_sync, which will cause it to be executed after the PNP subsystem initialization (which is an fs_initcall) and before device initcalls (including the pcieport driver initialization) which should avoid the initial issue. Link: https://bugzilla.kernel.org/show_bug.cgi?id=100581 Link: http://marc.info/?t=143092384600002&r=1&w=2 Link: https://bugzilla.kernel.org/show_bug.cgi?id=99831 Link: http://marc.info/?t=143389402600001&r=1&w=2 Fixes: b9a5e5e1 "ACPI / init: Fix the ordering of acpi_reserve_resources()" Reported-by: NRoland Dreier <roland@purestorage.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 06 7月, 2015 7 次提交
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由 Yann Droneaud 提交于
Commit 0a196848 ("perf: Fix arch_perf_out_copy_user default"), changes copy_from_user_nmi() to return the number of remaining bytes so that it behave like copy_from_user(). Unfortunately, when the range is outside of the process memory, the return value is still the number of byte copied, eg. 0, instead of the remaining bytes. As all users of copy_from_user_nmi() were modified as part of commit 0a196848, the function should be fixed to return the total number of bytes if range is not correct. Signed-off-by: NYann Droneaud <ydroneaud@opteya.com> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1435001923-30986-1-git-send-email-ydroneaud@opteya.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Peter Zijlstra 提交于
Its currently possible to drop the last refcount to the aux buffer from NMI context, which results in the expected fireworks. The refcounting needs a bigger overhaul, but to cure the immediate problem, delay the freeing by using an irq_work. Reviewed-and-tested-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com> Reported-by: NVince Weaver <vincent.weaver@maine.edu> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150618103249.GK19282@twins.programming.kicks-ass.netSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Merge branch 'perf/rbtree_copy' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull rbtree build fix from Arnaldo Carvalho de Melo. Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Arnaldo Carvalho de Melo 提交于
To complete the transitioning to not to share the same files with the kernel, also moving it from tools/perf/include/linux/ to tools/include/linux to make the whoke rbtree kit to other tools/ living codebases. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5bxyehixafckqm6ez25alnfo@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
The previous step, copying the contents minus the rcupdate.h parts, was done as a minimal fix, now do the move from tools/perf/. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-52fllxtsgmtke66pmv98mcma@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
So that we can remove kernel specific stuff we've been stubbing out via a tools/include/linux/export.h that gets removed in this patch and to avoid breakages in the future like the one fixed recently where rcupdate.h started being used in rbtree.h. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-rxuzfsozpb8hv1emwpx06rm6@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
Pull ext4 bugfixes from Ted Ts'o: "Bug fixes (all for stable kernels) for ext4: - address corner cases for indirect blocks->extent migration - fix reserved block accounting invalidate_page when page_size != block_size (i.e., ppc or 1k block size file systems) - fix deadlocks when a memcg is under heavy memory pressure - fix fencepost error in lazytime optimization" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: replace open coded nofail allocation in ext4_free_blocks() ext4: correctly migrate a file with a hole at the beginning ext4: be more strict when migrating to non-extent based file ext4: fix reservation release on invalidatepage for delalloc fs ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp bufferhead: Add _gfp version for sb_getblk() ext4: fix fencepost error in lazytime optimization
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