- 07 Sep, 2018 10 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds authored
Pull MD fixes from Shaohua Li: - Fix a locking issue for md-cluster (Guoqing) - Fix a sync crash for raid10 (Ni) - Fix a reshape bug with raid5 cache enabled (me) * tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md-cluster: release RESYNC lock after the last resync message RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 md/raid5-cache: disable reshape completely
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https://github.com/ceph/ceph-clientLinus Torvalds authored
Pull ceph fixes from Ilya Dryomov: "Two rbd patches to complete support for images within namespaces that went into -rc1 and a use-after-free fix. The rbd changes have been sitting in a branch for quite a while but couldn't be included into the -rc1 pull request because of a pending wire protocol backwards compatibility fixup that only got committed early this week" * tag 'ceph-for-4.19-rc3' of https://github.com/ceph/ceph-client: rbd: support cloning across namespaces rbd: factor out get_parent_info() ceph: avoid a use-after-free in ceph_destroy_options()
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds authored
Pull fsnotify fix from Jan Kara: "A small fsnotify fix from Amir" * tag 'for_v4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fsnotify: fix ignore mask logic in fsnotify()
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fix from Will Deacon: "Just one small fix here, preventing a VM_WARN_ON when a !present PMD/PUD is "freed" as part of a huge ioremap() operation. The correct behaviour is to skip the free silently in this case, which is a little weird (the function is a bit of a misnomer), but it follows the x86 implementation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: fix erroneous warnings in page freeing functions
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fixes from Rafael Wysocki: "These fix a regression from the 4.18 cycle in the ACPI driver for Intel SoCs (LPSS) and prevent dmi_check_system() from being called on non-x86 systems in the ACPI core. Specifics: - Fix a power management regression in the ACPI driver for Intel SoCs (LPSS) introduced by a system-wide suspend/resume fix during the 4.18 cycle (Zhang Rui). - Prevent dmi_check_system() from being called on non-x86 systems in the ACPI core (Jean Delvare)" * tag 'acpi-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / LPSS: Force LPSS quirks on boot ACPI / bus: Only call dmi_check_system() on X86
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Just a few small fixes: - a fix for the recursive work cancellation in a specific HD-audio operation mode - a fix for potentially uninitialized memory access via rawmidi - the register bit access fixes for ASoC HD-audio" * tag 'sound-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Fix several mismatch for register mask and value ALSA: rawmidi: Initialize allocated buffers ALSA: hda - Fix cancel_work_sync() stall from jackpoll work
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Rafael J. Wysocki authored
Merge ACPI core fix to avoid calling dmi_check_system() on non-x86. * acpi-bus: ACPI / bus: Only call dmi_check_system() on X86
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Seems to have been overly quiet this week so I expect next week will be more stuff, just one pull from Rodrigo with i915 fixes in it. Quoting Rodrigo: 'The critical fix here on display side is the DP MST regression one. But this pull also include fixes for DP SST, small VDSC register fix and GVT's bucked with "BXT fixes, two guest warning fixes, dmabuf format mod fix and one for recent multiple VM timeout failure'." * tag 'drm-fixes-2018-09-07' of git://anongit.freedesktop.org/drm/drm: drm/i915/dp_mst: Fix enabling pipe clock for all streams drm/i915/dsc: Fix PPS register definition macros for 2nd VDSC engine drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse" drm/i915/gvt: Give new born vGPU higher scheduling chance drm/i915/gvt: Fix drm_format_mod value for vGPU plane drm/i915/gvt: move intel_runtime_pm_get out of spin_lock in stop_schedule drm/i915/gvt: Handle GEN9_WM_CHICKEN3 with F_CMD_ACCESS. drm/i915/gvt: Make correct handling to vreg BXT_PHY_CTL_FAMILY drm/i915/gvt: emulate gen9 dbuf ctl register access
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
Pull m68knommu fix from Greg Ungerer: "A single change to fix booting on ColdFire platforms that have RAM starting at a non-0 address" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: fix early memory reservation for ColdFire MMU systems
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2018-09-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes The critical fix here on display side is the DP MST regression one. But this pull also include fixes for DP SST, small VDSC register fix and GVT's bucked with "BXT fixes, two guest warning fixes, dmabuf format mod fix and one for recent multiple VM timeout failure." Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180905183000.GA2151@intel.com
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- 06 Sep, 2018 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds authored
Pull MIPS fix from Paul Burton: "A single fix for v4.19-rc3, resolving a problem with our VDSO data page for systems with dcache aliasing. Those systems could previously observe stale data, causing clock_gettime() & gettimeofday() to return incorrect values" * tag 'mips_fixes_4.19_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: VDSO: Match data page cache colouring when D$ aliases
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: "Four small SMB3 fixes, three for stable, and one minor debug clarification" * tag '4.19-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: connect to servername instead of IP for IPC$ share smb3: check for and properly advertise directory lease support smb3: minor debugging clarifications in rfc1001 len processing SMB3: Backup intent flag missing for directory opens with backupuid mounts fs/cifs: don't translate SFM_SLASH (U+F026) to backslash
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Small collection of fixes that should go into this release. This contains: - Small series that fixes a race between blkcg teardown and writeback (Dennis Zhou) - Fix disallowing invalid block size settings from the nbd ioctl (me) - BFQ fix for a use-after-free on last release of a bfqg (Konstantin Khlebnikov) - Fix for the "don't warn for flush" fix (Mikulas)" * tag 'for-linus-20180906' of git://git.kernel.dk/linux-block: block: bfq: swap puts in bfqg_and_blkg_put block: don't warn when doing fsync on read-only devices nbd: don't allow invalid blocksize settings blkcg: use tryget logic when associating a blkg with a bio blkcg: delay blkg destruction until after writeback has finished Revert "blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()"
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Konstantin Khlebnikov authored
Fix trivial use-after-free. This could be last reference to bfqg. Fixes: 8f9bebc3 ("block, bfq: access and cache blkg data only when safe") Acked-by:
Paolo Valente <paolo.valente@linaro.org> Signed-off-by:
Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
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Mark Rutland authored
In pmd_free_pte_page() and pud_free_pmd_page() we try to warn if they hit a present non-table entry. In both cases we'll warn for non-present entries, as the VM_WARN_ON() only checks the entry is not a table entry. This has been observed to result in warnings when booting a v4.19-rc2 kernel under qemu. Fix this by bailing out earlier for non-present entries. Fixes: ec28bb9c ("arm64: Implement page table free interfaces") Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Linus Torvalds authored
Merge tag 'apparmor-pr-2018-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull apparmor fix from John Johansen: "A fix for an issue syzbot discovered last week: - Fix for bad debug check when converting secids to secctx" * tag 'apparmor-pr-2018-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: apparmor: fix bad debug check in apparmor_secid_to_secctx()
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing fixes from Steven Rostedt: "This fixes two annoying bugs: - The first one is a side effect caused by using SRCU for rcuidle tracepoints. It seems that the perf was depending on the rcuidle tracepoints to make RCU watch when it wasn't. The real fix will be to have perf use SRCU instead of depending on RCU watching, but that can't be done until SRCU is safe to use in NMI context (Paul's working on that). - The second bug fix is for a bug that's been periodically making my tests fail randomly for some time. I haven't had time to track it down, but finally have. It has to do with stressing NMIs (via perf) while enabling or disabling ftrace function handling with lockdep enabled. If an interrupt happens and just as it returns, it sets lockdep back to "interrupts enabled" but before it returns an NMI is triggered, and if this happens while printk_nmi_enter has a breakpoint attached to it (because ftrace is converting it to or from nop to call fentry), the breakpoint trap also calls into lockdep, and since returning from the NMI to a interrupt handler, interrupts were disabled when the NMI went off, lockdep keeps its state as interrupts disabled when it returns back from the interrupt handler where interrupts are enabled. This causes lockdep_assert_irqs_enabled() to trigger a false positive" * tag 'trace-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: printk/tracing: Do not trace printk_nmi_enter() tracing: Add back in rcu_irq_enter/exit_irqson() for rcuidle tracepoints
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: - fix for improper fsync after hardlink - fix for a corruption during file deduplication - use after free fixes - RCU warning fix - fix for buffered write to nodatacow file * tag 'for-4.19-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: Fix suspicious RCU usage warning in btrfs_debug_in_rcu btrfs: use after free in btrfs_quota_enable btrfs: btrfs_shrink_device should call commit transaction at the end btrfs: fix qgroup_free wrong num_bytes in btrfs_subvolume_reserve_metadata Btrfs: fix data corruption when deduplicating between different files Btrfs: sync log after logging new name Btrfs: fix unexpected failure of nocow buffered writes after snapshotting when low on space
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Steven Rostedt (VMware) authored
I hit the following splat in my tests: ------------[ cut here ]------------ IRQs not enabled as expected WARNING: CPU: 3 PID: 0 at kernel/time/tick-sched.c:982 tick_nohz_idle_enter+0x44/0x8c Modules linked in: ip6t_REJECT nf_reject_ipv6 ip6table_filter ip6_tables ipv6 CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.19.0-rc2-test+ #2 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 EIP: tick_nohz_idle_enter+0x44/0x8c Code: ec 05 00 00 00 75 26 83 b8 c0 05 00 00 00 75 1d 80 3d d0 36 3e c1 00 75 14 68 94 63 12 c1 c6 05 d0 36 3e c1 01 e8 04 ee f8 ff <0f> 0b 58 fa bb a0 e5 66 c1 e8 25 0f 04 00 64 03 1d 28 31 52 c1 8b EAX: 0000001c EBX: f26e7f8c ECX: 00000006 EDX: 00000007 ESI: f26dd1c0 EDI: 00000000 EBP: f26e7f40 ESP: f26e7f38 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010296 CR0: 80050033 CR2: 0813c6b0 CR3: 2f342000 CR4: 001406f0 Call Trace: do_idle+0x33/0x202 cpu_startup_entry+0x61/0x63 start_secondary+0x18e/0x1ed startup_32_smp+0x164/0x168 irq event stamp: 18773830 hardirqs last enabled at (18773829): [<c040150c>] trace_hardirqs_on_thunk+0xc/0x10 hardirqs last disabled at (18773830): [<c040151c>] trace_hardirqs_off_thunk+0xc/0x10 softirqs last enabled at (18773824): [<c0ddaa6f>] __do_softirq+0x25f/0x2bf softirqs last disabled at (18773767): [<c0416bbe>] call_on_stack+0x45/0x4b ---[ end trace b7c64aa79e17954a ]--- After a bit of debugging, I found what was happening. This would trigger when performing "perf" with a high NMI interrupt rate, while enabling and disabling function tracer. Ftrace uses breakpoints to convert the nops at the start of functions to calls to the function trampolines. The breakpoint traps disable interrupts and this makes calls into lockdep via the trace_hardirqs_off_thunk in the entry.S code. What happens is the following: do_idle { [interrupts enabled] <interrupt> [interrupts disabled] TRACE_IRQS_OFF [lockdep says irqs off] [...] TRACE_IRQS_IRET test if pt_regs say return to interrupts enabled [yes] TRACE_IRQS_ON [lockdep says irqs are on] <nmi> nmi_enter() { printk_nmi_enter() [traced by ftrace] [ hit ftrace breakpoint ] <breakpoint exception> TRACE_IRQS_OFF [lockdep says irqs off] [...] TRACE_IRQS_IRET [return from breakpoint] test if pt_regs say interrupts enabled [no] [iret back to interrupt] [iret back to code] tick_nohz_idle_enter() { lockdep_assert_irqs_enabled() [lockdep say no!] Although interrupts are indeed enabled, lockdep thinks it is not, and since we now do asserts via lockdep, it gives a false warning. The issue here is that printk_nmi_enter() is called before lockdep_off(), which disables lockdep (for this reason) in NMIs. By simply not allowing ftrace to see printk_nmi_enter() (via notrace annotation) we keep lockdep from getting confused. Cc: stable@vger.kernel.org Fixes: 42a0bb3f ("printk/nmi: generic solution for safe printk in NMI") Acked-by:
Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by:
Petr Mladek <pmladek@suse.com> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org>
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Ilya Dryomov authored
If parent_get class method is not supported by the OSDs, fall back to the legacy class method and assume that the parent is in the default (i.e. "") namespace. The "use the child's image namespace" workaround is no longer needed because creating images within namespaces will require parent_get aware OSDs. Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Reviewed-by:
Jason Dillaman <dillaman@redhat.com>
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Ilya Dryomov authored
In preparation for the new parent_get and parent_overlap_get class methods, factor out the fetching and decoding of parent data. As a side effect, we now decode all four fields in the "no parent" case. Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Reviewed-by:
Jason Dillaman <dillaman@redhat.com>
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Ilya Dryomov authored
syzbot reported a use-after-free in ceph_destroy_options(), called from ceph_mount(). The problem was that create_fs_client() consumed the opt pointer on some errors, but not on all of them. Make sure it always consumes both libceph and ceph options. Reported-by: syzbot+8ab6f1042021b4eed062@syzkaller.appspotmail.com Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Reviewed-by:
"Yan, Zheng" <zyan@redhat.com>
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Zhang Rui authored
Commit 12864ff8 (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation) bypasses lpss quirks for S3 and S4, by setting a flag for S3/S4 in acpi_lpss_suspend(), and check that flag in acpi_lpss_resume(). But this overlooks the boot case where acpi_lpss_resume() may get called without a corresponding acpi_lpss_suspend() having been called. Thus force setting the flag during boot. Fixes: 12864ff8 (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation) Link: https://bugzilla.kernel.org/show_bug.cgi?id=200989Reported-and-tested-by:
William Lieurance <william.lieurance@namikoda.com> Signed-off-by:
Zhang Rui <rui.zhang@intel.com> Cc: 4.15+ <stable@vger.kernel.org> # 4.15+: 12864ff8 (ACPI / LPSS: Avoid ...) Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Jean Delvare authored
Calling dmi_check_system() early only works on X86. Other architectures initialize the DMI subsystem later so it's not ready yet when ACPI itself gets initialized. In the best case it results in a useless call to a function which will do nothing. But depending on the dmi implementation, it could also result in warnings. Best is to not call the function when it can't work and isn't needed. Additionally, if anyone ever needs to add non-x86 quirks, it would surprisingly not work, so document the limitation to avoid confusion. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Fixes: cce4f632 (ACPI: fix early DSDT dmi check warnings on ia64) Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 05 Sep, 2018 7 commits
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Mikulas Patocka authored
It is possible to call fsync on a read-only handle (for example, fsck.ext2 does it when doing read-only check), and this call results in kernel warning. The patch b089cfd9 ("block: don't warn for flush on read-only device") attempted to disable the warning, but it is buggy and it doesn't (op_is_flush tests flags, but bio_op strips off the flags). Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Fixes: 721c7fc7 ("block: fail op_is_write() requests to read-only partitions") Cc: stable@vger.kernel.org # 4.18 Signed-off-by:
Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO fixes from Linus Walleij: "Some GPIO fixes. The ACPI stuff is probably the most annoying for users that get fixed this time. - Atomic contexts, cansleep* calls and such fastpath/slopwpath things. - Defer ACPI event handler registration to late_initcall() so IRQs do not fire in our face before other drivers have a chance to register handlers. - Race condition if a consumer requests a GPIO after gpiochip_add_data_with_key() but before of_gpiochip_add() - Probe errorpath in the dwapb driver" * tag 'gpio-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: Fix crash due to registration race gpio: dwapb: Fix error handling in dwapb_gpio_probe() gpiolib-acpi: Register GpioInt ACPI event handlers from a late_initcall gpiolib: acpi: Switch to cansleep version of GPIO library call gpio: adp5588: Fix sleep-in-atomic-context bug
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "A set of very minor fixes and a couple of reverts to fix a major problem (the attempt to change the busy count causes a hang when attempting to change the drive cache type)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: aacraid: fix a signedness bug Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq" Revert "scsi: core: fix scsi_host_queue_ready" scsi: libata: Add missing newline at end of file scsi: target: iscsi: cxgbit: use pr_debug() instead of pr_info() scsi: hpsa: limit transfer length to 1MB, not 512kB scsi: lpfc: Correct MDS diag and nvmet configuration scsi: lpfc: Default fdmi_on to on scsi: csiostor: fix incorrect port capabilities scsi: csiostor: add a check for NULL pointer after kmalloc() scsi: documentation: add scsi_mod.use_blk_mq to scsi-parameters scsi: core: Update SCSI_MQ_DEFAULT help text to match default
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Linus Torvalds authored
Merge tag 'nds32-for-linus-4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux Pull nds32 updates from Greentime Hu: "Contained in here are the bug fixes, building error fixes and ftrace support for nds32" * tag 'nds32-for-linus-4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: nds32: linker script: GCOV kernel may refers data in __exit nds32: fix build error because of wrong semicolon nds32: Fix a kernel panic issue because of wrong frame pointer access. nds32: Only print one page of stack when die to prevent printing too much information. nds32: Add macro definition for offset of lp register on stack nds32: Remove the deprecated ABI implementation nds32/stack: Get real return address by using ftrace_graph_ret_addr nds32/ftrace: Support dynamic function graph tracer nds32/ftrace: Support dynamic function tracer nds32/ftrace: Add RECORD_MCOUNT support nds32/ftrace: Support static function graph tracer nds32/ftrace: Support static function tracer nds32: Extract the checking and getting pointer to a macro nds32: Clean up the coding style nds32: Fix get_user/put_user macro expand pointer problem nds32: Fix empty call trace nds32: add NULL entry to the end of_device_id array nds32: fix logic for module
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Steven Rostedt (VMware) authored
Borislav reported the following splat: ============================= WARNING: suspicious RCU usage 4.19.0-rc1+ #1 Not tainted ----------------------------- ./include/linux/rcupdate.h:631 rcu_read_lock() used illegally while idle! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 2, debug_locks = 1 RCU used illegally from extended quiescent state! 1 lock held by swapper/0/0: #0: 000000004557ee0e (rcu_read_lock){....}, at: perf_event_output_forward+0x0/0x130 stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0-rc1+ #1 Hardware name: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012 Call Trace: dump_stack+0x85/0xcb perf_event_output_forward+0xf6/0x130 __perf_event_overflow+0x52/0xe0 perf_swevent_overflow+0x91/0xb0 perf_tp_event+0x11a/0x350 ? find_held_lock+0x2d/0x90 ? __lock_acquire+0x2ce/0x1350 ? __lock_acquire+0x2ce/0x1350 ? retint_kernel+0x2d/0x2d ? find_held_lock+0x2d/0x90 ? tick_nohz_get_sleep_length+0x83/0xb0 ? perf_trace_cpu+0xbb/0xd0 ? perf_trace_buf_alloc+0x5a/0xa0 perf_trace_cpu+0xbb/0xd0 cpuidle_enter_state+0x185/0x340 do_idle+0x1eb/0x260 cpu_startup_entry+0x5f/0x70 start_kernel+0x49b/0x4a6 secondary_startup_64+0xa4/0xb0 This is due to the tracepoints moving to SRCU usage which does not require RCU to be "watching". But perf uses these tracepoints with RCU and expects it to be. Hence, we still need to add in the rcu_irq_enter/exit_irqson() calls for "rcuidle" tracepoints. This is a temporary fix until we have SRCU working in NMI context, and then perf can be converted to use that instead of normal RCU. Link: http://lkml.kernel.org/r/20180904162611.6a120068@gandalf.local.home Cc: x86-ml <x86@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Reported-by:
Borislav Petkov <bp@alien8.de> Tested-by:
Borislav Petkov <bp@alien8.de> Reviewed-by:
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Fixes: e6753f23 ("tracepoint: Make rcuidle tracepoint callers use SRCU") Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org>
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Greentime Hu authored
This patch is used to fix nds32 allmodconfig/allyesconfig build error because GCOV kernel embeds counters in the kernel for each line and a part of that embed in __exit text. So we need to keep the EXIT_TEXT and EXIT_DATA if CONFIG_GCOV_KERNEL=y. Link: https://lkml.org/lkml/2018/9/1/125Signed-off-by:
Greentime Hu <greentime@andestech.com> Reviewed-by:
Masami Hiramatsu <mhiramat@kernel.org>
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "17 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: nilfs2: convert to SPDX license tags drivers/dax/device.c: convert variable to vm_fault_t type lib/Kconfig.debug: fix three typos in help text checkpatch: add __ro_after_init to known $Attribute mm: fix BUG_ON() in vmf_insert_pfn_pud() from VM_MIXEDMAP removal uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name memory_hotplug: fix kernel_panic on offline page processing checkpatch: add optional static const to blank line declarations test ipc/shm: properly return EIDRM in shm_lock() mm/hugetlb: filter out hugetlb pages if HUGEPAGE migration is not supported. mm/util.c: improve kvfree() kerneldoc tools/vm/page-types.c: fix "defined but not used" warning tools/vm/slabinfo.c: fix sign-compare warning kmemleak: always register debugfs file mm: respect arch_dup_mmap() return value mm, oom: fix missing tlb_finish_mmu() in __oom_reap_task_mm(). mm: memcontrol: print proper OOM header when no eligible victim left
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- 04 Sep, 2018 9 commits
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Ryusuke Konishi authored
Remove the verbose license text from NILFS2 files and replace them with SPDX tags. This does not change the license of any of the code. Link: http://lkml.kernel.org/r/1535624528-5982-1-git-send-email-konishi.ryusuke@lab.ntt.co.jpSigned-off-by:
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Reviewed-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Souptick Joarder authored
As part of 226ab561 ("device-dax: Convert to vmf_insert_mixed and vm_fault_t") in 4.19-rc1, 'rc' was not converted to vm_fault_t. Now converted. Link: http://lkml.kernel.org/r/20180830153813.GA26059@jordon-HP-15-Notebook-PCSigned-off-by:
Souptick Joarder <jrdr.linux@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ross Zwisler <zwisler@kernel.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Thibaut Sautereau authored
Fix three typos in CONFIG_WARN_ALL_UNSEEDED_RANDOM help text. Link: http://lkml.kernel.org/r/20180830194505.4778-1-thibaut@sautereau.frSigned-off-by:
Thibaut Sautereau <thibaut@sautereau.fr> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Joe Perches authored
__ro_after_init is a specific __attribute__ that checkpatch does currently not understand. Add it to the known $Attribute types so that code that uses variables declared with __ro_after_init are not thought to be a modifier type. This appears as a defect in checkpatch output of code like: static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU); [...] if (trust_cpu && arch_init) { where checkpatch reports: ERROR: space prohibited after that '&&' (ctx:WxW) if (trust_cpu && arch_init) { Link: http://lkml.kernel.org/r/0fa8a2cb83ade4c525e18261ecf6cfede3015983.camel@perches.comSigned-off-by:
Joe Perches <joe@perches.com> Reported-by:
Kees Cook <keescook@chromium.org> Tested-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Dave Jiang authored
It looks like I missed the PUD path when doing VM_MIXEDMAP removal. This can be triggered by: 1. Boot with memmap=4G!8G 2. build ndctl with destructive flag on 3. make TESTS=device-dax check [ +0.000675] kernel BUG at mm/huge_memory.c:824! Applying the same change that was applied to vmf_insert_pfn_pmd() in the original patch. Link: http://lkml.kernel.org/r/153565957352.35524.1005746906902065126.stgit@djiang5-desk3.ch.intel.com Fixes: e1fb4a08 ("dax: remove VM_MIXEDMAP for fsdax and device dax") Signed-off-by:
Dave Jiang <dave.jiang@intel.com> Reported-by:
Vishal Verma <vishal.l.verma@intel.com> Tested-by:
Vishal Verma <vishal.l.verma@intel.com> Acked-by:
Jeff Moyer <jmoyer@redhat.com> Reviewed-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Randy Dunlap authored
Since this header is in "include/uapi/linux/", apparently people want to use it in userspace programs -- even in C++ ones. However, the header uses a C++ reserved keyword ("private"), so change that to "dh_private" instead to allow the header file to be used in C++ userspace. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=191051 Link: http://lkml.kernel.org/r/0db6c314-1ef4-9bfa-1baa-7214dd2ee061@infradead.org Fixes: ddbb4114 ("KEYS: Add KEYCTL_DH_COMPUTE command") Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Reviewed-by:
Andrew Morton <akpm@linux-foundation.org> Cc: David Howells <dhowells@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Mat Martineau <mathew.j.martineau@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Mikhail Zaslonko authored
Within show_valid_zones() the function test_pages_in_a_zone() should be called for online memory blocks only. Otherwise it might lead to the VM_BUG_ON due to uninitialized struct pages (when CONFIG_DEBUG_VM_PGFLAGS kernel option is set): page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) ------------[ cut here ]------------ Call Trace: ([<000000000038f91e>] test_pages_in_a_zone+0xe6/0x168) [<0000000000923472>] show_valid_zones+0x5a/0x1a8 [<0000000000900284>] dev_attr_show+0x3c/0x78 [<000000000046f6f0>] sysfs_kf_seq_show+0xd0/0x150 [<00000000003ef662>] seq_read+0x212/0x4b8 [<00000000003bf202>] __vfs_read+0x3a/0x178 [<00000000003bf3ca>] vfs_read+0x8a/0x148 [<00000000003bfa3a>] ksys_read+0x62/0xb8 [<0000000000bc2220>] system_call+0xdc/0x2d8 That VM_BUG_ON was triggered by the page poisoning introduced in mm/sparse.c with the git commit d0dc12e8 ("mm/memory_hotplug: optimize memory hotplug"). With the same commit the new 'nid' field has been added to the struct memory_block in order to store and later on derive the node id for offline pages (instead of accessing struct page which might be uninitialized). But one reference to nid in show_valid_zones() function has been overlooked. Fixed with current commit. Also, nr_pages will not be used any more after test_pages_in_a_zone() call, do not update it. Link: http://lkml.kernel.org/r/20180828090539.41491-1-zaslonko@linux.ibm.com Fixes: d0dc12e8 ("mm/memory_hotplug: optimize memory hotplug") Signed-off-by:
Mikhail Zaslonko <zaslonko@linux.ibm.com> Acked-by:
Michal Hocko <mhocko@suse.com> Reviewed-by:
Pavel Tatashin <pavel.tatashin@microsoft.com> Cc: <stable@vger.kernel.org> [4.17+] Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Joe Perches authored
Using a static const struct definition as part of a series of declarations produces a false positive "Missing a blank line after declarations" for code like: WARNING: Missing a blank line after declarations #710: FILE: drivers/gpu/drm/tidss/tidss_scale_coefs.c:137: + int inc; + static const struct { So fix it. Link: http://lkml.kernel.org/r/5905126e70b0ed1781e49265fd5c49c5090d0223.camel@perches.comSigned-off-by:
Joe Perches <joe@perches.com> Reported-by:
Jyri Sarha <jsarha@ti.com> Cc: "Valkeinen, Tomi" <tomi.valkeinen@ti.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
When getting rid of the general ipc_lock(), this was missed furthermore, making the comment around the ipc object validity check bogus. Under EIDRM conditions, callers will in turn not see the error and continue with the operation. Link: http://lkml.kernel.org/r/20180824030920.GD3677@linux-r8p5 Link: http://lkml.kernel.org/r/20180823024051.GC13343@shao2-debian Fixes: 82061c57 ("ipc: drop ipc_lock()") Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Reported-by:
kernel test robot <rong.a.chen@intel.com> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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