Pull scheduler fixes from Ingo Molnar:
"Misc fixes: various scheduler metrics corner case fixes, a
sched_features deadlock fix, and a topology fix for certain NUMA
systems"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix kernel-doc notation warning
sched/fair: Fix load_balance redo for !imbalance
sched/fair: Fix scale_rt_capacity() for SMT
sched/fair: Fix vruntime_normalized() for remote non-migration wakeup
sched/pelt: Fix update_blocked_averages() for RT and DL classes
sched/topology: Set correct NUMA topology type
sched/debug: Fix potential deadlock when writing to sched_features
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Merge tag '4.19-rc3-smb3-cifs' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Fixes for four CIFS/SMB3 potential pointer overflow issues, one minor
build fix, and a build warning cleanup"
* tag '4.19-rc3-smb3-cifs' of git://git.samba.org/sfrench/cifs-2.6:
cifs: read overflow in is_valid_oplock_break()
cifs: integer overflow in in SMB2_ioctl()
CIFS: fix wrapping bugs in num_entries()
cifs: prevent integer overflow in nxt_dir_entry()
fs/cifs: require sha512
fs/cifs: suppress a string overflow warning
Stable bugfixes:
- v4.17+: Fix a tracepoint Oops in initiate_file_draining()
- v4.17+: Fix a tracepoint Oops in initiate_file_draining()
- v4.11+: Fix an infinite loop on I/O
Other fixes:
- Return errors if a waiting layoutget is killed
- Don't open code clearing of delegation state
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Merge tag 'nfs-for-4.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"These are a handful of fixes for problems that Trond found. Patch #1
and #3 have the same name, a second issue was found after applying the
first patch.
Stable bugfixes:
- v4.17+: Fix tracepoint Oops in initiate_file_draining()
- v4.11+: Fix an infinite loop on I/O
Other fixes:
- Return errors if a waiting layoutget is killed
- Don't open code clearing of delegation state"
* tag 'nfs-for-4.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Don't open code clearing of delegation state
NFSv4.1 fix infinite loop on I/O.
NFSv4: Fix a tracepoint Oops in initiate_file_draining()
pNFS: Ensure we return the error if someone kills a waiting layoutget
NFSv4: Fix a tracepoint Oops in initiate_file_draining()
modifies CC_FLAGS_FTRACE. The issue is that it breaks the dependencies
and causes "make targz-pkg" to rebuild the entire world.
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Merge tag 'trace-v4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"This fixes an issue with the build system caused by a change that
modifies CC_FLAGS_FTRACE. The issue is that it breaks the dependencies
and causes "make targz-pkg" to rebuild the entire world"
* tag 'trace-v4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/Makefile: Fix handling redefinition of CC_FLAGS_FTRACE
- Fix a regression on systems having a DT without any phandles which
happens on a PowerMac G3.
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Merge tag 'devicetree-fixes-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fix from Rob Herring:
"One regression for a 20 year old PowerMac:
- Fix a regression on systems having a DT without any phandles which
happens on a PowerMac G3"
* tag 'devicetree-fixes-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fix phandle cache creation for DTs with no phandles
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Merge tag 'for-linus-4.19c-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"This contains some minor cleanups and fixes:
- a new knob for controlling scrubbing of pages returned by the Xen
balloon driver to the Xen hypervisor to address a boot performance
issue seen in large guests booted pre-ballooned
- a fix of a regression in the gntdev driver which made it impossible
to use fully virtualized guests (HVM guests) with a 4.19 based dom0
- a fix in Xen cpu hotplug functionality which could be triggered by
wrong admin commands (setting number of active vcpus to 0)
One further note: the patches have all been under test for several
days in another branch. This branch has been rebased in order to avoid
merge conflicts"
* tag 'for-linus-4.19c-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/gntdev: fix up blockable calls to mn_invl_range_start
xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage
xen: avoid crash in disable_hotplug_cpu
xen/balloon: add runtime control for scrubbing ballooned out pages
xen/manage: don't complain about an empty value in control/sysrq node
- don't allocate memory in platform_setup as the memory allocator is not
initialized at that point yet;
- remove unnecessary ifeq KBUILD_SRC from arch/xtensa/Makefile;
- enable SG chaining in arch/xtensa/Kconfig.
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Merge tag 'xtensa-20180914' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa fixes and cleanups from Max Filippov:
- don't allocate memory in platform_setup as the memory allocator is
not initialized at that point yet;
- remove unnecessary ifeq KBUILD_SRC from arch/xtensa/Makefile;
- enable SG chaining in arch/xtensa/Kconfig.
* tag 'xtensa-20180914' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: enable SG chaining in Kconfig
xtensa: remove unnecessary KBUILD_SRC ifeq conditional
xtensa: ISS: don't allocate memory in platform_setup
- Fix ioport_map() mapping the wrong physical address for some I/O BARs
- Remove direct use of "asm goto", since some compilers don't like that
- Ensure kimage_voffset is always present in vmcoreinfo PT_NOTE
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The trickle of arm64 fixes continues to come in.
Nothing that's the end of the world, but we've got a fix for PCI IO
port accesses, an accidental naked "asm goto" and a fix to the
vmcoreinfo PT_NOTE merged this time around which we'd like to get
sorted before it becomes ABI.
- Fix ioport_map() mapping the wrong physical address for some I/O
BARs
- Remove direct use of "asm goto", since some compilers don't like
that
- Ensure kimage_voffset is always present in vmcoreinfo PT_NOTE"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
asm-generic: io: Fix ioport_map() for !CONFIG_GENERIC_IOMAP && CONFIG_INDIRECT_PIO
arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE
arm64: jump_label.h: use asm_volatile_goto macro instead of "asm goto"
Add a helper for the case when the nfs4 open state has been set to use
a delegation stateid, and we want to revert to using the open stateid.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
The previous fix broke recovery of delegated stateids because it assumes
that if we did not mark the delegation as suspect, then the delegation has
effectively been revoked, and so it removes that delegation irrespectively
of whether or not it is valid and still in use. While this is "mostly
harmless" for ordinary I/O, we've seen pNFS fail with LAYOUTGET spinning
in an infinite loop while complaining that we're using an invalid stateid
(in this case the all-zero stateid).
What we rather want to do here is ensure that the delegation is always
correctly marked as needing testing when that is the case. So we want
to close the loophole offered by nfs4_schedule_stateid_recovery(),
which marks the state as needing to be reclaimed, but not the
delegation that may be backing it.
Fixes: 0e3d3e5df0 ("NFSv4.1 fix infinite loop on IO BAD_STATEID error")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.11+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Now that the value of 'ino' can be NULL or an ERR_PTR(), we need to
change the test in the tracepoint.
Fixes: ce5624f7e6 ("NFSv4: Return NFS4ERR_DELAY when a layout fails...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
If someone interrupts a wait on one or more outstanding layoutgets in
pnfs_update_layout() then return the ERESTARTSYS/EINTR error.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Now that the value of 'ino' can be NULL or an ERR_PTR(), we need to
change the test in the tracepoint.
Fixes: ce5624f7e6 ("NFSv4: Return NFS4ERR_DELAY when a layout fails...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
- Fix mic_x100_dma to use devm_kzalloc to ensure memory is freed after
use by device manage dmaengine release function added in merge window
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Merge tag 'dmaengine-fix-4.19-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fix from Vinod Koul:
"Fix the mic_x100_dma driver to use devm_kzalloc for driver memory, so
that it is freed properly when it unregisters from dmaengine using
managed API"
* tag 'dmaengine-fix-4.19-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mic_x100_dma: use devm_kzalloc to fix an issue
Here are a number of small USB driver fixes for -rc4.
The usual suspects of gadget, xhci, and dwc2/3 are in here, along with
some reverts of reported problem changes, and a number of build
documentation warning fixes. Full details are in the shortlog.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB driver fixes for -rc4.
The usual suspects of gadget, xhci, and dwc2/3 are in here, along with
some reverts of reported problem changes, and a number of build
documentation warning fixes. Full details are in the shortlog.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits)
Revert "cdc-acm: implement put_char() and flush_chars()"
usb: Change usb_of_get_companion_dev() place to usb/common
usb: xhci: fix interrupt transfer error happened on MTK platforms
usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()
usb: misc: uss720: Fix two sleep-in-atomic-context bugs
usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame()
usb: Avoid use-after-free by flushing endpoints early in usb_set_interface()
linux/mod_devicetable.h: fix kernel-doc missing notation for typec_device_id
usb/typec: fix kernel-doc notation warning for typec_match_altmode
usb: Don't die twice if PCI xhci host is not responding in resume
usb: mtu3: fix error of xhci port id when enable U3 dual role
usb: uas: add support for more quirk flags
USB: Add quirk to support DJI CineSSD
usb: typec: fix kernel-doc parameter warning
usb/dwc3/gadget: fix kernel-doc parameter warning
USB: yurex: Check for truncation in yurex_read()
USB: yurex: Fix buffer over-read in yurex_write()
usb: host: xhci-plat: Iterate over parent nodes for finding quirks
xhci: Fix use after free for URB cancellation on a reallocated endpoint
USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller
...
Here are 3 small HVC tty driver fixes to resolve a reported regression
from 4.19-rc1.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are three small HVC tty driver fixes to resolve a reported
regression from 4.19-rc1.
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: hvc: hvc_write() fix break condition
tty: hvc: hvc_poll() fix read loop batching
tty: hvc: hvc_poll() fix read loop hang
Here are a few small staging and iio driver fixes for -rc4.
Nothing major, just a few small bugfixes for some reported issues, and a
MAINTAINERS file update for the fbtft drivers. We also re-enable the
building of the erofs filesystem as the patcheset that was causing it to
break never got merged in the -rc1 cycle, so there's no reason it can't
be turned back on for now. The problem that was previously there is now
being handled in that other tree at the moment, so it will not hit us
again in the future.
All of these patches have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver fixes from Greg KH:
"Here are a few small staging and iio driver fixes for -rc4.
Nothing major, just a few small bugfixes for some reported issues, and
a MAINTAINERS file update for the fbtft drivers.
We also re-enable the building of the erofs filesystem as the XArray
patches that were causing it to break never got merged in the -rc1
cycle, so there's no reason it can't be turned back on for now. The
problem that was previously there is now being handled in the Xarray
tree at the moment, so it will not hit us again in the future.
All of these patches have been in linux-next with no reported issues"
* tag 'staging-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vboxvideo: Change address of scanout buffer on page-flip
staging: vboxvideo: Fix IRQs no longer working
staging: gasket: TODO: re-implement using UIO
staging/fbtft: Update TODO and mailing lists
staging: erofs: rename superblock flags (MS_xyz -> SB_xyz)
iio: imu: st_lsm6dsx: take into account ts samples in wm configuration
Revert "iio: temperature: maxim_thermocouple: add MAX31856 part"
Revert "staging: erofs: disable compiling temporarile"
MAINTAINERS: Switch a maintainer for drivers/staging/gasket
staging: wilc1000: revert "fix TODO to compile spi and sdio components in single module"
Here are a small handful of char/misc driver fixes for 4.19-rc4.
All of them are simple, resolving reported problems in a few drivers.
Full details are in the shortlog.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a small handful of char/misc driver fixes for 4.19-rc4.
All of them are simple, resolving reported problems in a few drivers.
Full details are in the shortlog.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
firmware: Fix security issue with request_firmware_into_buf()
vmbus: don't return values for uninitalized channels
fpga: dfl: fme: fix return value check in in pr_mgmt_init()
misc: hmc6352: fix potential Spectre v1
Tools: hv: Fix a bug in the key delete code
misc: ibmvsm: Fix wrong assignment of return code
android: binder: fix the race mmap and alloc_new_buf_locked
mei: bus: need to unlink client before freeing
mei: bus: fix hw module get/put balance
mei: fix use-after-free in mei_cl_write
mei: ignore not found client in the enumeration
Patch series "mmu_notifiers follow ups".
Tetsuo has noticed some fallouts from 93065ac753 ("mm, oom: distinguish
blockable mode for mmu notifiers"). One of them has been fixed and picked
up by AMD/DRM maintainer [1]. XEN issue is fixed by patch 1. I have also
clarified expectations about blockable semantic of invalidate_range_end.
Finally the last patch removes MMU_INVALIDATE_DOES_NOT_BLOCK which is no
longer used nor needed.
[1] http://lkml.kernel.org/r/20180824135257.GU29735@dhcp22.suse.cz
This patch (of 3):
93065ac753 ("mm, oom: distinguish blockable mode for mmu notifiers") has
introduced blockable parameter to all mmu_notifiers and the notifier has
to back off when called in !blockable case and it could block down the
road.
The above commit implemented that for mn_invl_range_start but both
in_range checks are done unconditionally regardless of the blockable mode
and as such they would fail all the time for regular calls. Fix this by
checking blockable parameter as well.
Once we are there we can remove the stale TODO. The lock has to be
sleepable because we wait for completion down in gnttab_unmap_refs_sync.
Link: http://lkml.kernel.org/r/20180827112623.8992-2-mhocko@kernel.org
Fixes: 93065ac753 ("mm, oom: distinguish blockable mode for mmu notifiers")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
This patch removes duplicate macro useage in events_base.c.
It also fixes gcc warning:
variable ‘col’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Joshua Abraham <j.abraham1776@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
The command 'xl vcpu-set 0 0', issued in dom0, will crash dom0:
BUG: unable to handle kernel NULL pointer dereference at 00000000000002d8
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 7 PID: 65 Comm: xenwatch Not tainted 4.19.0-rc2-1.ga9462db-default #1 openSUSE Tumbleweed (unreleased)
Hardware name: Intel Corporation S5520UR/S5520UR, BIOS S5500.86B.01.00.0050.050620101605 05/06/2010
RIP: e030:device_offline+0x9/0xb0
Code: 77 24 00 e9 ce fe ff ff 48 8b 13 e9 68 ff ff ff 48 8b 13 e9 29 ff ff ff 48 8b 13 e9 ea fe ff ff 90 66 66 66 66 90 41 54 55 53 <f6> 87 d8 02 00 00 01 0f 85 88 00 00 00 48 c7 c2 20 09 60 81 31 f6
RSP: e02b:ffffc90040f27e80 EFLAGS: 00010203
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8801f3800000 RSI: ffffc90040f27e70 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff820e47b3 R09: 0000000000000000
R10: 0000000000007ff0 R11: 0000000000000000 R12: ffffffff822e6d30
R13: dead000000000200 R14: dead000000000100 R15: ffffffff8158b4e0
FS: 00007ffa595158c0(0000) GS:ffff8801f39c0000(0000) knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000002d8 CR3: 00000001d9602000 CR4: 0000000000002660
Call Trace:
handle_vcpu_hotplug_event+0xb5/0xc0
xenwatch_thread+0x80/0x140
? wait_woken+0x80/0x80
kthread+0x112/0x130
? kthread_create_worker_on_cpu+0x40/0x40
ret_from_fork+0x3a/0x50
This happens because handle_vcpu_hotplug_event is called twice. In the
first iteration cpu_present is still true, in the second iteration
cpu_present is false which causes get_cpu_device to return NULL.
In case of cpu#0, cpu_online is apparently always true.
Fix this crash by checking if the cpu can be hotplugged, which is false
for a cpu that was just removed.
Also check if the cpu was actually offlined by device_remove, otherwise
leave the cpu_present state as it is.
Rearrange to code to do all work with device_hotplug_lock held.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Scrubbing pages on initial balloon down can take some time, especially
in nested virtualization case (nested EPT is slow). When HVM/PVH guest is
started with memory= significantly lower than maxmem=, all the extra
pages will be scrubbed before returning to Xen. But since most of them
weren't used at all at that point, Xen needs to populate them first
(from populate-on-demand pool). In nested virt case (Xen inside KVM)
this slows down the guest boot by 15-30s with just 1.5GB needed to be
returned to Xen.
Add runtime parameter to enable/disable it, to allow initially disabling
scrubbing, then enable it back during boot (for example in initramfs).
Such usage relies on assumption that a) most pages ballooned out during
initial boot weren't used at all, and b) even if they were, very few
secrets are in the guest at that time (before any serious userspace
kicks in).
Convert CONFIG_XEN_SCRUB_PAGES to CONFIG_XEN_SCRUB_PAGES_DEFAULT (also
enabled by default), controlling default value for the new runtime
switch.
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
When guest receives a sysrq request from the host it acknowledges it by
writing '\0' to control/sysrq xenstore node. This, however, make xenstore
watch fire again but xenbus_scanf() fails to parse empty value with "%c"
format string:
sysrq: SysRq : Emergency Sync
Emergency Sync complete
xen:manage: Error -34 reading sysrq code in control/sysrq
Ignore -ERANGE the same way we already ignore -ENOENT, empty value in
control/sysrq is totally legal.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
The !CONFIG_GENERIC_IOMAP version of ioport_map uses MMIO_UPPER_LIMIT to
prevent users from making I/O accesses outside the expected I/O range -
however it erroneously treats MMIO_UPPER_LIMIT as a mask which is
contradictory to its other users.
The introduction of CONFIG_INDIRECT_PIO, which subtracts an arbitrary
amount from IO_SPACE_LIMIT to form MMIO_UPPER_LIMIT, results in ioport_map
mangling the given port rather than capping it.
We address this by aligning more closely with the CONFIG_GENERIC_IOMAP
implementation of ioport_map by using the comparison operator and
returning NULL where the port exceeds MMIO_UPPER_LIMIT. Though note that
we preserve the existing behavior of masking with IO_SPACE_LIMIT such that
we don't break existing buggy drivers that somehow rely on this masking.
Fixes: 5745392e0c ("PCI: Apply the new generic I/O management on PCI IO hosts")
Reported-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Merge tag 'printk-for-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk fix from Petr Mladek:
"Revert a commit that caused "quiet", "debug", and "loglevel" early
parameters to be ignored for early boot messages"
* tag 'printk-for-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
Revert "printk: make sure to print log on console."
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Merge tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"This fixes a regression in the recent file stacking update, reported
and fixed by Amir Goldstein. The fix is fairly trivial, but involves
adding a fadvise() f_op and the associated churn in the vfs. As
discussed on -fsdevel, there are other possible uses for this method,
than allowing proper stacking for overlays.
And there's one other fix for a syzkaller detected oops"
* tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix oopses in ovl_fill_super() failure paths
ovl: add ovl_fadvise()
vfs: implement readahead(2) using POSIX_FADV_WILLNEED
vfs: add the fadvise() file operation
Documentation/filesystems: update documentation of file_operations
ovl: fix GPF in swapfile_activate of file from overlayfs over xfs
ovl: respect FIEMAP_FLAG_SYNC flag
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Merge tag 'for-linus-20180913' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Three fixes that should go into this series. This contains:
- Increase number of policies supported by blk-cgroup.
With blk-iolatency, we now have four in kernel, but we had a hard
limit of three...
- Fix regression in null_blk, where the zoned supported broke
queue_mode=0 (bio based).
- NVMe pull request, with a single fix for an issue in the rdma code"
* tag 'for-linus-20180913' of git://git.kernel.dk/linux-block:
null_blk: fix zoned support for non-rq based operation
blk-cgroup: increase number of supported policies
nvmet-rdma: fix possible bogus dereference under heavy load
asynchronous crypto hadsh API.
- Fix to both DM crypt and DM integrity targets to discontinue using
CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to
deadlock by recursing back into a filesystem.
- Various DM raid fixes related to reshape and rebuild races.
- Fix for DM thin-provisioning to avoid data corruption that was a
side-effect of needing to abort DM thin metadata transaction due to
running out of metadata space. Fix is to reserve a small amount of
metadata space so that once it is used the DM thin-pool can finish its
active transaction before switching to read-only mode.
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Merge tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- DM verity fix for crash due to using vmalloc'd buffers with the
asynchronous crypto hadsh API.
- Fix to both DM crypt and DM integrity targets to discontinue using
CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to
deadlock by recursing back into a filesystem.
- Various DM raid fixes related to reshape and rebuild races.
- Fix for DM thin-provisioning to avoid data corruption that was a
side-effect of needing to abort DM thin metadata transaction due to
running out of metadata space. Fix is to reserve a small amount of
metadata space so that once it is used the DM thin-pool can finish
its active transaction before switching to read-only mode.
* tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm thin metadata: try to avoid ever aborting transactions
dm raid: bump target version, update comments and documentation
dm raid: fix RAID leg rebuild errors
dm raid: fix rebuild of specific devices by updating superblock
dm raid: fix stripe adding reshape deadlock
dm raid: fix reshape race on small devices
dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock
dm verity: fix crash on bufio buffer that was allocated with vmalloc
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Merge tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"This is the general drm fixes pull for rc4.
i915:
- Two GVT fixes (one for the mm reference issue you pointed out)
- Gen 2 video playback fix
- IPS timeout error suppression on Broadwell
amdgpu:
- Small memory leak
- SR-IOV reset
- locking fix
- updated SDMA golden registers
nouveau:
- Remove some leftover debugging"
* tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/devinit: fix warning when PMU/PRE_OS is missing
drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunk
drm/i915/overlay: Allocate physical registers from stolen
drm/amdgpu: move PSP init prior to IH in gpu reset
drm/amdgpu: Fix SDMA hang in prt mode v2
drm/amdgpu: fix amdgpu_mn_unlock() in the CS error path
drm/i915/bdw: Increase IPS disable timeout to 100ms
drm/i915/gvt: Fix the incorrect length of child_device_config issue
drm/i915/gvt: Fix life cycle reference on KVM mm
- A complicated IRQ fix for the MSM driver (see commit).
- Fix the group/function check in the Ingenic driver.
- Deal with a possible NULL pointer dereference in the Madera
driver.
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Merge tag 'pinctrl-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- A complicated IRQ fix for the MSM driver (see commit)
- Fix the group/function check in the Ingenic driver
- Deal with a possible NULL pointer dereference in the Madera driver
* tag 'pinctrl-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: madera: Fix possible NULL pointer with pdata config
pinctrl: ingenic: Fix group & function error checking
pinctrl: msm: Really mask level interrupts to prevent latching
Pull percpu maintainership update from Tejun Heo:
"This updates the MAINTAINERS file to transfer the percpu tree
maintainership to Dennis Zhou.
Dennis rewrote a good portion of the percpu allocator, knows most of
percpu related code, is already listed as a co-maintainer, has been
reliable, and now sits right behind me. I'll keep reviewing and
involved with percpu stuff and am sure that Dennis will soon make a
better maintainer than I ever was"
* 'for-4.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
MAINTAINERS: Make Dennis the percpu tree maintainer
Pull hexagon fixes from Richard Kuo:
"Some fixes for compile warnings"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
hexagon: modify ffs() and fls() to return int
arch/hexagon: fix kernel/dma.c build warning
One fix for the zcrypt driver to correctly handle incomplete
encryption/decryption operations.
A cleanup for the aqmask/apmask parsing to avoid variable
length arrays on the stack.
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Merge tag 's390-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
- One fix for the zcrypt driver to correctly handle incomplete
encryption/decryption operations.
- A cleanup for the aqmask/apmask parsing to avoid variable length
arrays on the stack.
* tag 's390-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/zcrypt: remove VLA usage from the AP bus
s390/crypto: Fix return code checking in cbc_paes_crypt()
Jann Horn points out that the vmacache_flush_all() function is not only
potentially expensive, it's buggy too. It also happens to be entirely
unnecessary, because the sequence number overflow case can be avoided by
simply making the sequence number be 64-bit. That doesn't even grow the
data structures in question, because the other adjacent fields are
already 64-bit.
So simplify the whole thing by just making the sequence number overflow
case go away entirely, which gets rid of all the complications and makes
the code faster too. Win-win.
[ Oleg Nesterov points out that the VMACACHE_FULL_FLUSHES statistics
also just goes away entirely with this ]
Reported-by: Jann Horn <jannh@google.com>
Suggested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
a IPS timeout error suppression on Broadwell and GVT bucked with
"Most critical one is to fix KVM's mm reference when we access guest memory,
issue was raised by Linus [1], and another one with virtual opregion fix."
[1] - https://lists.freedesktop.org/archives/intel-gvt-dev/2018-August/004130.html
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Merge tag 'drm-intel-fixes-2018-09-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
This contains a regression fix for video playbacks on gen 2 hardware,
a IPS timeout error suppression on Broadwell and GVT bucked with
"Most critical one is to fix KVM's mm reference when we access guest memory,
issue was raised by Linus [1], and another one with virtual opregion fix."
[1] - https://lists.freedesktop.org/archives/intel-gvt-dev/2018-August/004130.html
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180911223229.GA30328@intel.com
Dennis rewrote a significant portion of the percpu allocator and has
shown that he can respond in a timely and helpful manner when issues
are reported against percpu allocator.
Let's make Dennis the percpu tree maintainer.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
persistent_ram_vmap() returns the page start vaddr.
persistent_ram_iomap() supports non-page-aligned mapping.
persistent_ram_buffer_map() always adds offset-in-page to the vaddr
returned from these two functions, which causes incorrect mapping of
non-page-aligned persistent ram buffer.
By default ftrace_size is 4096 and max_ftrace_cnt is nr_cpu_ids. Without
this patch, the zone_sz in ramoops_init_przs() is 4096/nr_cpu_ids which
might not be page aligned. If the offset-in-page > 2048, the vaddr will be
in next page. If the next page is not mapped, it will cause kernel panic:
[ 0.074231] BUG: unable to handle kernel paging request at ffffa19e0081b000
...
[ 0.075000] RIP: 0010:persistent_ram_new+0x1f8/0x39f
...
[ 0.075000] Call Trace:
[ 0.075000] ramoops_init_przs.part.10.constprop.15+0x105/0x260
[ 0.075000] ramoops_probe+0x232/0x3a0
[ 0.075000] platform_drv_probe+0x3e/0xa0
[ 0.075000] driver_probe_device+0x2cd/0x400
[ 0.075000] __driver_attach+0xe4/0x110
[ 0.075000] ? driver_probe_device+0x400/0x400
[ 0.075000] bus_for_each_dev+0x70/0xa0
[ 0.075000] driver_attach+0x1e/0x20
[ 0.075000] bus_add_driver+0x159/0x230
[ 0.075000] ? do_early_param+0x95/0x95
[ 0.075000] driver_register+0x70/0xc0
[ 0.075000] ? init_pstore_fs+0x4d/0x4d
[ 0.075000] __platform_driver_register+0x36/0x40
[ 0.075000] ramoops_init+0x12f/0x131
[ 0.075000] do_one_initcall+0x4d/0x12c
[ 0.075000] ? do_early_param+0x95/0x95
[ 0.075000] kernel_init_freeable+0x19b/0x222
[ 0.075000] ? rest_init+0xbb/0xbb
[ 0.075000] kernel_init+0xe/0xfc
[ 0.075000] ret_from_fork+0x3a/0x50
Signed-off-by: Bin Yang <bin.yang@intel.com>
[kees: add comments describing the mapping differences, updated commit log]
Fixes: 24c3d2f342 ("staging: android: persistent_ram: Make it possible to use memory outside of bootmem")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
for cd2315d "ipmi: kcs_bmc: don't change device name" which is for a
driver that very few people use, and those people need the change.
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Merge tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmi
Pull IPMI bugfixes from Corey Minyard:
"A few fixes that came around or after the merge window, except for
commit cd2315d471 ("ipmi: kcs_bmc: don't change device name") which
is for a driver that very few people use, and those people need the
change"
* tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmi:
ipmi: Fix NULL pointer dereference in ssif_probe
ipmi: Fix I2C client removal in the SSIF driver
ipmi: Move BT capabilities detection to the detect call
ipmi: Rework SMI registration failure
ipmi: kcs_bmc: don't change device name
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Merge tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drm
Pull drm nouveau fixes from Dave Airlie:
"I'm sending this separately as it's a bit larger than I generally like
for one driver, but it does contain a bunch of make my nvidia laptop
not die (runpm) and a bunch to make my docking station and monitor
display stuff (mst) fixes.
Lyude has spent a lot of time on these, and we are putting the fixes
into distro kernels as well asap, as it helps a bunch of standard
Lenovo laptops, so I'm fairly happy things are better than they were
before these patches, but I decided to split them out just for
clarification"
* tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels
drm/nouveau/disp: fix DP disable race
drm/nouveau/disp: move eDP panel power handling
drm/nouveau/disp: remove unused struct member
drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS
drm/nouveau/mmu: don't attempt to dereference vmm without valid instance pointer
drm/nouveau: fix oops in client init failure path
drm/nouveau: Fix nouveau_connector_ddc_detect()
drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload
drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early
drm/nouveau: Reset MST branching unit before enabling
drm/nouveau: Only write DP_MSTM_CTRL when needed
drm/nouveau: Remove useless poll_enable() call in drm_load()
drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state()
drm/nouveau: Remove useless poll_enable() call in switcheroo_set_state()
drm/nouveau: Fix deadlocks in nouveau_connector_detect()
drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()
drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests
drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend()
drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement
Pull networking fixes from David Miller:
1) Fix up several Kconfig dependencies in netfilter, from Martin Willi
and Florian Westphal.
2) Memory leak in be2net driver, from Petr Oros.
3) Memory leak in E-Switch handling of mlx5 driver, from Raed Salem.
4) mlx5_attach_interface needs to check for errors, from Huy Nguyen.
5) tipc_release() needs to orphan the sock, from Cong Wang.
6) Need to program TxConfig register after TX/RX is enabled in r8169
driver, not beforehand, from Maciej S. Szmigiero.
7) Handle 64K PAGE_SIZE properly in ena driver, from Netanel Belgazal.
8) Fix crash regression in ip_do_fragment(), from Taehee Yoo.
9) syzbot can create conditions where kernel log is flooded with
synflood warnings due to creation of many listening sockets, fix
that. From Willem de Bruijn.
10) Fix RCU issues in rds socket layer, from Cong Wang.
11) Fix vlan matching in nfp driver, from Pieter Jansen van Vuuren.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
nfp: flower: reject tunnel encap with ipv6 outer headers for offloading
nfp: flower: fix vlan match by checking both vlan id and vlan pcp
tipc: check return value of __tipc_dump_start()
s390/qeth: don't dump past end of unknown HW header
s390/qeth: use vzalloc for QUERY OAT buffer
s390/qeth: switch on SG by default for IQD devices
s390/qeth: indicate error when netdev allocation fails
rds: fix two RCU related problems
r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED
erspan: fix error handling for erspan tunnel
erspan: return PACKET_REJECT when the appropriate tunnel is not found
tcp: rate limit synflood warnings further
MIPS: lantiq: dma: add dev pointer
netfilter: xt_hashlimit: use s->file instead of s->private
netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT
netfilter: cttimeout: ctnl_timeout_find_get() returns incorrect pointer to type
netfilter: conntrack: timeout interface depend on CONFIG_NF_CONNTRACK_TIMEOUT
netfilter: conntrack: reset tcp maxwin on re-register
qmi_wwan: Support dynamic config on Quectel EP06
ethernet: renesas: convert to SPDX identifiers
...
Messed up when sending pull request and sent an outdated version of
previous patch, this fixes it up to remove warnings.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The supported added for zones in null_blk seem to assume that only rq
based operation is possible. But this depends on the queue_mode setting,
if this is set to 0, then cmd->bio is what we need to be operating on.
Right now any attempt to load null_blk with queue_mode=0 will
insta-crash, since cmd->rq is NULL and null_handle_cmd() assumes it to
always be set.
Make the zoned code deal with bio's instead, or pass in the
appropriate sector/nr_sectors instead.
Fixes: ca4b2a0119 ("null_blk: add zone support")
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We need to verify that the "data_offset" is within bounds.
Reported-by: Dr Silvio Cesare of InfoSect <silvio.cesare@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
