I've noticed that there is no interface exposed by CMA which would let
me to declare contigous memory on particular NUMA node.
This patchset adds the ability to try to allocate contiguous memory on a
specific node. It will fallback to other nodes if the specified one
doesn't work.
Implement a new method for declaring contigous memory on particular node
and keep cma_declare_contiguous() as a wrapper.
[akpm@linux-foundation.org: build fix]
Signed-off-by: Aslan Bakirov <aslan@fb.com>
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@kernel.org>
Cc: Andreas Schaufler <andreas.schaufler@gmx.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Link: http://lkml.kernel.org/r/20200407163840.92263-2-guro@fb.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux fallocate(2) with FALLOC_FL_PUNCH_HOLE mode set, its offset can
exceed the inode size. Ocfs2 now doesn't allow that offset beyond inode
size. This restriction is not necessary and violates fallocate(2)
semantics.
If fallocate(2) offset is beyond inode size, just return success and do
nothing further.
Otherwise, ocfs2 will crash the kernel.
kernel BUG at fs/ocfs2//alloc.c:7264!
ocfs2_truncate_inline+0x20f/0x360 [ocfs2]
ocfs2_remove_inode_range+0x23c/0xcb0 [ocfs2]
__ocfs2_change_file_space+0x4a5/0x650 [ocfs2]
ocfs2_fallocate+0x83/0xa0 [ocfs2]
vfs_fallocate+0x148/0x230
SyS_fallocate+0x48/0x80
do_syscall_64+0x79/0x170
Signed-off-by: Changwei Ge <chge@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200407082754.17565-1-chge@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the following sparse warning:
mm/page_alloc.c:106:1: warning: symbol 'pcpu_drain_mutex' was not declared. Should it be static?
mm/page_alloc.c:107:1: warning: symbol '__pcpu_scope_pcpu_drain' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200407023925.46438-1-yanaijie@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add description of function parameter 'mt' to fix kernel-doc warning:
mm/page_alloc.c:3246: warning: Function parameter or member 'mt' not described in '__putback_isolated_page'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Link: http://lkml.kernel.org/r/02998bd4-0b82-2f15-2570-f86130304d1e@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a typo at the cross-reference link, causing this warning:
include/linux/slab.h:11: WARNING: undefined label: memory-allocation (if the link has no caption the label must precede a section header)
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Link: http://lkml.kernel.org/r/0aeac24235d356ebd935d11e147dcc6edbb6465c.1586359676.git.mchehab+huawei@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a typo in comment, fix it.
s/eariler/earlier/
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christoph Lameter <cl@linux.com>
Link: http://lkml.kernel.org/r/20200405160544.1246-1-hqjagain@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If a cgroup violates its memory.high constraints, we may end up unduly
penalising it. For example, for the following hierarchy:
A: max high, 20 usage
A/B: 9 high, 10 usage
A/C: max high, 10 usage
We would end up doing the following calculation below when calculating
high delay for A/B:
A/B: 10 - 9 = 1...
A: 20 - PAGE_COUNTER_MAX = 21, so set max_overage to 21.
This gets worse with higher disparities in usage in the parent.
I have no idea how this disappeared from the final version of the patch,
but it is certainly Not Good(tm). This wasn't obvious in testing because,
for a simple cgroup hierarchy with only one child, the result is usually
roughly the same. It's only in more complex hierarchies that things go
really awry (although still, the effects are limited to a maximum of 2
seconds in schedule_timeout_killable at a maximum).
[chris@chrisdown.name: changelog]
Fixes: e26733e0d0 ("mm, memcg: throttle allocators based on ancestral memory.high")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org> [5.4.x]
Link: http://lkml.kernel.org/r/20200331152424.GA1019937@chrisdown.name
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When removing files containing extended attributes, the hfsplus driver may
remove the wrong entries from the attributes b-tree, causing major
filesystem damage and in some cases even kernel crashes.
To remove a file, all its extended attributes have to be removed as well.
The driver does this by looking up all keys in the attributes b-tree with
the cnid of the file. Each of these entries then gets deleted using the
key used for searching, which doesn't contain the attribute's name when it
should. Since the key doesn't contain the name, the deletion routine will
not find the correct entry and instead remove the one in front of it. If
parent nodes have to be modified, these become corrupt as well. This
causes invalid links and unsorted entries that not even macOS's fsck_hfs
is able to fix.
To fix this, modify the search key before an entry is deleted from the
attributes b-tree by copying the found entry's key into the search key,
therefore ensuring that the correct entry gets removed from the tree.
Signed-off-by: Simon Gander <simon@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Anton Altaparmakov <anton@tuxera.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200327155541.1521-1-simon@tuxera.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
printk_deferred(), similarly to printk_safe/printk_nmi, does not
immediately attempt to print a new message on the consoles, avoiding
calls into non-reentrant kernel paths, e.g. scheduler or timekeeping,
which potentially can deadlock the system.
Those printk() flavors, instead, rely on per-CPU flush irq_work to print
messages from safer contexts. For same reasons (recursive scheduler or
timekeeping calls) printk() uses per-CPU irq_work in order to wake up
user space syslog/kmsg readers.
However, only printk_safe/printk_nmi do make sure that per-CPU areas
have been initialised and that it's safe to modify per-CPU irq_work.
This means that, for instance, should printk_deferred() be invoked "too
early", that is before per-CPU areas are initialised, printk_deferred()
will perform illegal per-CPU access.
Lech Perczak [0] reports that after commit 1b710b1b10 ("char/random:
silence a lockdep splat with printk()") user-space syslog/kmsg readers
are not able to read new kernel messages.
The reason is printk_deferred() being called too early (as was pointed
out by Petr and John).
Fix printk_deferred() and do not queue per-CPU irq_work before per-CPU
areas are initialized.
Link: https://lore.kernel.org/lkml/aa0732c6-5c4e-8a8b-a1c1-75ebe3dca05b@camlintechnologies.com/
Reported-by: Lech Perczak <l.perczak@camlintechnologies.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Jann Horn <jannh@google.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull proc fix from Eric Biederman:
"A brown paper bag slipped through my proc changes, and syzcaller
caught it when the code ended up in your tree.
I have opted to fix it the simplest cleanest way I know how, so there
is no reasonable chance for the bug to repeat"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
proc: Use a dedicated lock in struct pid
There's quite a few changes this time around. Most of these are fixes
and cleanups, but there's also new chip support for some drivers and a
bit of rework.
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Merge tag 'pwm/for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"There's quite a few changes this time around.
Most of these are fixes and cleanups, but there's also new chip
support for some drivers and a bit of rework"
* tag 'pwm/for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (33 commits)
pwm: pca9685: Fix PWM/GPIO inter-operation
pwm: Make pwm_apply_state_debug() static
pwm: meson: Remove redundant assignment to variable fin_freq
pwm: jz4740: Allow selection of PWM channels 0 and 1
pwm: jz4740: Obtain regmap from parent node
pwm: jz4740: Improve algorithm of clock calculation
pwm: jz4740: Use clocks from TCU driver
pwm: sun4i: Remove redundant needs_delay
pwm: omap-dmtimer: Implement .apply callback
pwm: omap-dmtimer: Do not disable PWM before changing period/duty_cycle
pwm: omap-dmtimer: Fix PWM enabling sequence
pwm: omap-dmtimer: Update description for PWM OMAP DM timer
pwm: omap-dmtimer: Drop unused header file
pwm: renesas-tpu: Drop confusing registered message
pwm: renesas-tpu: Fix late Runtime PM enablement
pwm: rcar: Fix late Runtime PM enablement
dt-bindings: pwm: renesas-tpu: Document more R-Car Gen2 support
pwm: meson: Fix confusing indentation
pwm: pca9685: Use gpio core provided macro GPIO_LINE_DIRECTION_OUT
pwm: pca9685: Replace CONFIG_PM with __maybe_unused
...
A couple of bug fixes for the main IPMI driver, one functional and two
annotations.
The kcs driver has some significant updates that have been pending for a
while, but I forgot to include in next until a week ago. But this code
is only used by the people who are sending it to me, really, so it's not
a big deal. I did want it to sit in next for at least a week, and it did
result in a fix.
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Merge tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"Bug fixes for main IPMI driver, kcs updates
A couple of bug fixes for the main IPMI driver, one functional and two
annotations.
The kcs driver has some significant updates that have been pending for
a while, but I forgot to include in next until a week ago. But this
code is only used by the people who are sending it to me, really, so
it's not a big deal. I did want it to sit in next for at least a week,
and it did result in a fix"
* tag 'for-linus-5.7-1' of git://github.com/cminyard/linux-ipmi:
ipmi: kcs: Fix aspeed_kcs_probe_of_v1()
ipmi: Add missing annotation for ipmi_ssif_lock_cond() and ipmi_ssif_unlock_cond()
ipmi: kcs: aspeed: Implement v2 bindings
ipmi: kcs: Finish configuring ASPEED KCS device before enable
dt-bindings: ipmi: aspeed: Introduce a v2 binding for KCS
ipmi: fix hung processes in __get_guid()
drivers: char: ipmi: ipmi_msghandler: Pass lockdep expression to RCU lists
legacy:
- fix drm_local_map.offset type
ttm:
- temporarily disable hugepages to debug amdgpu problems.
prime:
- fix sg extraction
amdgpu:
- Various Renoir fixes
- Fix gfx clockgating sequence on gfx10
- RAS fixes
- Avoid MST property creation after registration
- Various cursor/viewport fixes
- Fix a confusing log message about optional firmwares
i915:
- Flush all the reloc_gpu batch (Chris)
- Ignore readonly failures when updating relocs (Chris)
- Fill all the unused space in the GGTT (Chris)
- Return the right vswing table (Jose)
- Don't enable DDI IO power on a TypeC port in TBT mode for ICL+ (Imre)
analogix_dp:
- probe fix
virtio:
- oob fix in object create
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Merge tag 'drm-next-2020-04-10' of git://anongit.freedesktop.org/drm/drm
Pull more drm fixes from Dave Airlie:
"As expected, more fixes did turn up in the latter part of the week.
The drm_local_map build regression fix is here, along with temporary
disabling of the hugepage work due to some amdgpu related crashes.
Otherwise it's just a bunch of i915, and amdgpu fixes.
legacy:
- fix drm_local_map.offset type
ttm:
- temporarily disable hugepages to debug amdgpu problems.
prime:
- fix sg extraction
amdgpu:
- Various Renoir fixes
- Fix gfx clockgating sequence on gfx10
- RAS fixes
- Avoid MST property creation after registration
- Various cursor/viewport fixes
- Fix a confusing log message about optional firmwares
i915:
- Flush all the reloc_gpu batch (Chris)
- Ignore readonly failures when updating relocs (Chris)
- Fill all the unused space in the GGTT (Chris)
- Return the right vswing table (Jose)
- Don't enable DDI IO power on a TypeC port in TBT mode for ICL+ (Imre)
analogix_dp:
- probe fix
virtio:
- oob fix in object create"
* tag 'drm-next-2020-04-10' of git://anongit.freedesktop.org/drm/drm: (34 commits)
drm/ttm: Temporarily disable the huge_fault() callback
drm/bridge: analogix_dp: Split bind() into probe() and real bind()
drm/legacy: Fix type for drm_local_map.offset
drm/amdgpu/display: fix warning when compiling without debugfs
drm/amdgpu: unify fw_write_wait for new gfx9 asics
drm/amd/powerplay: error out on forcing clock setting not supported
drm/amdgpu: fix gfx hang during suspend with video playback (v2)
drm/amd/display: Check for null fclk voltage when parsing clock table
drm/amd/display: Acknowledge wm_optimized_required
drm/amd/display: Make cursor source translation adjustment optional
drm/amd/display: Calculate scaling ratios on every medium/full update
drm/amd/display: Program viewport when source pos changes for DCN20 hw seq
drm/amd/display: Fix incorrect cursor pos on scaled primary plane
drm/amd/display: change default pipe_split policy for DCN1
drm/amd/display: Translate cursor position by source rect
drm/amd/display: Update stream adjust in dc_stream_adjust_vmin_vmax
drm/amd/display: Avoid create MST prop after registration
drm/amdgpu/psp: dont warn on missing optional TA's
drm/amdgpu: update RAS related dmesg print
drm/amdgpu: resolve mGPU RAS query instability
...
A collection of small fixes gathered since the previous update.
* ALSA core:
- Regression fix for OSS PCM emulation
* ASoC:
- Trivial fixes in reg bit mask ops, DAPM, DPCM and topology
- Lots of fixes for Intel-based devices
- Minor fixes for AMD, STM32, Qualcomm, Realtek
* Others
- Fixes for the bugs in mixer handling in HD-audio and ice1724
drivers that were caught by the recent kctl validator
- New quirks for HD-audio and USB-audio
Also this contains a fix for EDD firmware fix, which slipped
from anyone's hands.
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Merge tag 'sound-fix-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes gathered since the previous update.
ALSA core:
- Regression fix for OSS PCM emulation
ASoC:
- Trivial fixes in reg bit mask ops, DAPM, DPCM and topology
- Lots of fixes for Intel-based devices
- Minor fixes for AMD, STM32, Qualcomm, Realtek
Others:
- Fixes for the bugs in mixer handling in HD-audio and ice1724
drivers that were caught by the recent kctl validator
- New quirks for HD-audio and USB-audio
Also this contains a fix for EDD firmware fix, which slipped from
anyone's hands"
* tag 'sound-fix-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
ALSA: hda: Add driver blacklist
ALSA: usb-audio: Add mixer workaround for TRX40 and co
ALSA: hda/realtek - Add quirk for MSI GL63
ALSA: ice1724: Fix invalid access for enumerated ctl items
ALSA: hda: Fix potential access overflow in beep helper
ASoC: cs4270: pull reset GPIO low then high
ALSA: hda/realtek - Add HP new mute led supported for ALC236
ALSA: hda/realtek - Add supported new mute Led for HP
ASoC: rt5645: Add platform-data for Medion E1239T
ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN MPWIN895CL tablet
ASoC: stm32: sai: Add missing cleanup
ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Alpha S
ASoC: Intel: atom: Fix uninitialized variable compiler warning
ASoC: Intel: atom: Check drv->lock is locked in sst_fill_and_send_cmd_unlocked
ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map()
ASoC: SOF: Turn "firmware boot complete" message into a dbg message
ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
ALSA: pcm: oss: Fix regression by buffer overflow fix (again)
ALSA: pcm: oss: Fix regression by buffer overflow fix
edd: Use scnprintf() for avoiding potential buffer overflow
...
This is a batch of changes that didn't make it in the initial pull
request because the lpfc series had to be rebased to redo an incorrect
split. It's basically driver updates to lpfc, target, bnx2fc and ufs
with the rest being minor updates except the sr_block_release one
which fixes a use after free introduced by the removal of the global
mutex in the first patch set.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"This is a batch of changes that didn't make it in the initial pull
request because the lpfc series had to be rebased to redo an incorrect
split.
It's basically driver updates to lpfc, target, bnx2fc and ufs with the
rest being minor updates except the sr_block_release one which fixes a
use after free introduced by the removal of the global mutex in the
first patch set"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (35 commits)
scsi: core: Add DID_ALLOC_FAILURE and DID_MEDIUM_ERROR to hostbyte_table
scsi: ufs: Use ufshcd_config_pwr_mode() when scaling gear
scsi: bnx2fc: fix boolreturn.cocci warnings
scsi: zfcp: use fallthrough;
scsi: aacraid: do not overwrite retval in aac_reset_adapter()
scsi: sr: Fix sr_block_release()
scsi: aic7xxx: Remove more FreeBSD-specific code
scsi: mpt3sas: Fix kernel panic observed on soft HBA unplug
scsi: ufs: set device as active power mode after resetting device
scsi: iscsi: Report unbind session event when the target has been removed
scsi: lpfc: Change default SCSI LUN QD to 64
scsi: libfc: rport state move to PLOGI if all PRLI retry exhausted
scsi: libfc: If PRLI rejected, move rport to PLOGI state
scsi: bnx2fc: Update the driver version to 2.12.13
scsi: bnx2fc: Fix SCSI command completion after cleanup is posted
scsi: bnx2fc: Process the RQE with CQE in interrupt context
scsi: target: use the stack for XCOPY passthrough cmds
scsi: target: increase XCOPY I/O size
scsi: target: avoid per-loop XCOPY buffer allocations
scsi: target: drop xcopy DISK BLOCK LENGTH debug
...
Add experimental support for allowing a swap file to be on an SMB3
mount. There are use cases where swapping over a secure network
filesystem is preferable. In some cases there are no local
block devices large enough, and network block devices can be
hard to setup and secure. And in some cases there are no
local block devices at all (e.g. with the recent addition of
remote boot over SMB3 mounts).
There are various enhancements that can be added later e.g.:
- doing a mandatory byte range lock over the swapfile (until
the Linux VFS is modified to notify the file system that an open
is for a swapfile, when the file can be opened "DENY_ALL" to prevent
others from opening it).
- pinning more buffers in the underlying transport to minimize memory
allocations in the TCP stack under the fs
- documenting how to create ACLs (on the server) to secure the
swapfile (or adding additional tools to cifs-utils to make it easier)
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
nios2-dev@lists.rocketboards.org mailing list is no longer supported,
remove it from MAINTAINERS file.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
The 'altr,pio-1.0' driver does not handle the 'resetvalue', so remove it.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
There is no more 'altr,gpio-bank-width' in the 'altr,pio-1.0' driver.
There is a 'altr,ngpio' which is what the property wants to configure.
This change updates all occurrences of 'altr,gpio-bank-width' to
'altr,ngpio'.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
This patch adds support for common clock framework on Nios2. Clock
framework is commonly used in many drivers, and this patch makes it
available for the entire architecture, not just on a per-driver basis.
Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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Merge tag 'libata-5.7-2020-04-09' of git://git.kernel.dk/linux-block
Pull libata fixes from Jens Axboe:
"A few followup changes/fixes for libata:
- PMP removal fix (Kai-Heng)
- Add remapped NVMe device attribute to sysfs (Kai-Heng)
- Remove redundant assignment (Colin)
- Add yet another Comet Lake ID (Jian-Hong)"
* tag 'libata-5.7-2020-04-09' of git://git.kernel.dk/linux-block:
ahci: Add Intel Comet Lake PCH RAID PCI ID
ata: ahci: Add sysfs attribute to show remapped NVMe device count
ata: ahci-imx: remove redundant assignment to ret
libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set
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Merge tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here's a set of fixes that should go into this merge window. This
contains:
- NVMe pull request from Christoph with various fixes
- Better discard support for loop (Evan)
- Only call ->commit_rqs() if we have queued IO (Keith)
- blkcg offlining fixes (Tejun)
- fix (and fix the fix) for busy partitions"
* tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block:
block: fix busy device checking in blk_drop_partitions again
block: fix busy device checking in blk_drop_partitions
nvmet-rdma: fix double free of rdma queue
blk-mq: don't commit_rqs() if none were queued
nvme-fc: Revert "add module to ops template to allow module references"
nvme: fix deadlock caused by ANA update wrong locking
nvmet-rdma: fix bonding failover possible NULL deref
loop: Better discard support for block devices
loop: Report EOPNOTSUPP properly
nvmet: fix NULL dereference when removing a referral
nvme: inherit stable pages constraint in the mpath stack device
blkcg: don't offline parent blkcg first
blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it
nvme-tcp: fix possible crash in recv error flow
nvme-tcp: don't poll a non-live queue
nvme-tcp: fix possible crash in write_zeroes processing
nvmet-fc: fix typo in comment
nvme-rdma: Replace comma with a semicolon
nvme-fcloop: fix deallocation of working context
nvme: fix compat address handling in several ioctls
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Merge tag 'io_uring-5.7-2020-04-09' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Here's a set of fixes that either weren't quite ready for the first,
or came about from some intensive testing on memcached with 350K+
sockets.
Summary:
- Fixes for races or deadlocks around poll handling
- Don't double account fixed files against RLIMIT_NOFILE
- IORING_OP_OPENAT LFS fix
- Poll retry handling (Bijan)
- Missing finish_wait() for SQPOLL (Hillf)
- Cleanup/split of io_kiocb alloc vs ctx references (Pavel)
- Fixed file unregistration and init fixes (Xiaoguang)
- Various little fixes (Xiaoguang, Pavel, Colin)"
* tag 'io_uring-5.7-2020-04-09' of git://git.kernel.dk/linux-block:
io_uring: punt final io_ring_ctx wait-and-free to workqueue
io_uring: fix fs cleanup on cqe overflow
io_uring: don't read user-shared sqe flags twice
io_uring: remove req init from io_get_req()
io_uring: alloc req only after getting sqe
io_uring: simplify io_get_sqring
io_uring: do not always copy iovec in io_req_map_rw()
io_uring: ensure openat sets O_LARGEFILE if needed
io_uring: initialize fixed_file_data lock
io_uring: remove redundant variable pointer nxt and io_wq_assign_next call
io_uring: fix ctx refcounting in io_submit_sqes()
io_uring: process requests completed with -EAGAIN on poll list
io_uring: remove bogus RLIMIT_NOFILE check in file registration
io_uring: use io-wq manager as backup task if task is exiting
io_uring: grab task reference for poll requests
io_uring: retry poll if we got woken with non-matching mask
io_uring: add missing finish_wait() in io_sq_thread()
io_uring: refactor file register/unregister/update handling
- Validate the realtime geometry in the superblock when mounting
- Refactor a bunch of tricky flag handling in the log code
- Flush the CIL more judiciously so that we don't wait until there are
millions of log items consuming a lot of memory.
- Throttle transaction commits to prevent the xfs frontend from flooding
the CIL with too many log items.
- Account metadata buffers correctly for memory reclaim.
- Mark slabs properly for memory reclaim. These should help reclaim run
more effectively when XFS is using a lot of memory.
- Don't write a garbage log record at unmount time if we're trying to
trigger summary counter recalculation at next mount.
- Don't block the AIL on locked dquot/inode buffers; instead trigger its
backoff mechanism to give the lock holder a chance to finish up.
- Ratelimit writeback flushing when buffered writes encounter ENOSPC.
- Other minor cleanups.
- Make reflink a synchronous operation when the fs is mounted with wsync
or sync, which means that now we force the log to disk to record the
changes.
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Merge tag 'xfs-5.7-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull more xfs updates from Darrick Wong:
"As promised last week, this batch changes how xfs interacts with
memory reclaim; how the log batches and throttles log items; how hard
writes near ENOSPC will try to squeeze more space out of the
filesystem; and hopefully fix the last of the umount hangs after a
catastrophic failure.
Summary:
- Validate the realtime geometry in the superblock when mounting
- Refactor a bunch of tricky flag handling in the log code
- Flush the CIL more judiciously so that we don't wait until there
are millions of log items consuming a lot of memory.
- Throttle transaction commits to prevent the xfs frontend from
flooding the CIL with too many log items.
- Account metadata buffers correctly for memory reclaim.
- Mark slabs properly for memory reclaim. These should help reclaim
run more effectively when XFS is using a lot of memory.
- Don't write a garbage log record at unmount time if we're trying to
trigger summary counter recalculation at next mount.
- Don't block the AIL on locked dquot/inode buffers; instead trigger
its backoff mechanism to give the lock holder a chance to finish
up.
- Ratelimit writeback flushing when buffered writes encounter ENOSPC.
- Other minor cleanups.
- Make reflink a synchronous operation when the fs is mounted with
wsync or sync, which means that now we force the log to disk to
record the changes"
* tag 'xfs-5.7-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits)
xfs: reflink should force the log out if mounted with wsync
xfs: factor out a new xfs_log_force_inode helper
xfs: fix inode number overflow in ifree cluster helper
xfs: remove redundant variable assignment in xfs_symlink()
xfs: ratelimit inode flush on buffered write ENOSPC
xfs: return locked status of inode buffer on xfsaild push
xfs: trylock underlying buffer on dquot flush
xfs: remove unnecessary ternary from xfs_create
xfs: don't write a corrupt unmount record to force summary counter recalc
xfs: factor inode lookup from xfs_ifree_cluster
xfs: tail updates only need to occur when LSN changes
xfs: factor common AIL item deletion code
xfs: correctly acount for reclaimable slabs
xfs: Improve metadata buffer reclaim accountability
xfs: don't allow log IO to be throttled
xfs: Throttle commits on delayed background CIL push
xfs: Lower CIL flush limit for large logs
xfs: remove some stale comments from the log code
xfs: refactor unmount record writing
xfs: merge xlog_commit_record with xlog_write_done
...
Prevent a false-positive static checker warning from triggering
in the ACPI EC driver (Rafael Wysocki), fix white space in an
ACPI document (Vilhelm Prytz) and add static annotation to one
variable (Jason Yan).
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Merge tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These prevent a false-positive static checker warning from triggering
in the ACPI EC driver (Rafael Wysocki), fix white space in an ACPI
document (Vilhelm Prytz) and add static annotation to one variable
(Jason Yan)"
* tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI, x86/boot: make acpi_nobgrt static
Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst
ACPI: EC: Fix up fast path check in acpi_ec_add()
Rework compat ioctl handling in the user space hibernation
interface (Christoph Hellwig) and fix a typo in a function
name in the cpuidle haltpoll driver (Yihao Wu).
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Merge tag 'pm-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"Rework compat ioctl handling in the user space hibernation interface
(Christoph Hellwig) and fix a typo in a function name in the cpuidle
haltpoll driver (Yihao Wu)"
* tag 'pm-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle-haltpoll: Fix small typo
PM / sleep: handle the compat case in snapshot_set_swap_area()
PM / sleep: move SNAPSHOT_SET_SWAP_AREA handling into a helper
The commit 9c1036fdb1 ("btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC
support") breaks strace build with the kernel headers from git:
btrfs.c: In function "btrfs_test_subvol_ioctls":
btrfs.c:531:23: error: "BTRFS_SUBVOL_CREATE_ASYNC" undeclared (first use
in this function)
vol_args_v2.flags = BTRFS_SUBVOL_CREATE_ASYNC;
Moreover, it is improper to break UAPI, strace uses the definitions to
decode ioctls that are considered part of public API.
Restore the macro definition and put it under "#ifndef __KERNEL__"
in order to prevent inadvertent in-kernel usage.
Fixes: 9c1036fdb1 ("btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC support")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
- The rest of fallthrough; annotations conversion.
- Couple of fixes for ADD uevents in the common I/O layer.
- Minor refactoring of the queued direct I/O code.
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Merge tag 's390-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
"Second round of s390 fixes and features for 5.7:
- The rest of fallthrough; annotations conversion
- Couple of fixes for ADD uevents in the common I/O layer
- Minor refactoring of the queued direct I/O code"
* tag 's390-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cio: generate delayed uevent for vfio-ccw subchannels
s390/cio: avoid duplicated 'ADD' uevents
s390/qdio: clear DSCI early for polling drivers
s390/qdio: inline shared_ind()
s390/qdio: remove cdev from init_data
s390/qdio: allow for non-contiguous SBAL array in init_data
zfcp: inline zfcp_qdio_setup_init_data()
s390/qdio: cleanly split alloc and establish
s390/mm: use fallthrough;
Add documentation of the binderfs 'stats' mount option.
Description taken from the commit message.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/baa0aa81-007d-af46-16a5-91fead0bd1b9@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The previous fix had an off by one in the bd_openers checking, counting
the callers blkdev_get.
Fixes: d3ef553627 ("block: fix busy device checking in blk_drop_partitions")
Reported-by: Qian Cai <cai@lca.pw>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Qian Cai <cai@lca.pw>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If kmsg_dump_register() fails, hv_panic_page will not be used
anywhere. So free and reset it.
Fixes: 81b18bce48 ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/20200406155331.2105-3-Tianyu.Lan@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
When kdump is not configured, a Hyper-V VM might still respond to
network traffic after a kernel panic when kernel parameter panic=0.
The panic CPU goes into an infinite loop with interrupts enabled,
and the VMbus driver interrupt handler still works because the
VMbus connection is unloaded only in the kdump path. The network
responses make the other end of the connection think the VM is
still functional even though it has panic'ed, which could affect any
failover actions that should be taken.
Fix this by unloading the VMbus connection during the panic process.
vmbus_initiate_unload() could then be called twice (e.g., by
hyperv_panic_event() and hv_crash_handler(), so reset the connection
state in vmbus_initiate_unload() to ensure the unload is done only
once.
Fixes: 81b18bce48 ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/20200406155331.2105-2-Tianyu.Lan@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
We can't reliably wait in io_ring_ctx_wait_and_kill(), since the
task_works list isn't ordered (in fact it's LIFO ordered). We could
either fix this with a separate task_works list for io_uring work, or
just punt the wait-and-free to async context. This ensures that
task_work that comes in while we're shutting down is processed
correctly. If we don't go async, we could have work past the fput()
work for the ring that depends on work that won't be executed until
after we're done with the wait-and-free. But as this operation is
blocking, it'll never get a chance to run.
This was reproduced with hundreds of thousands of sockets running
memcached, haven't been able to reproduce this synthetically.
Reported-by: Dan Melnic <dmm@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Daniel Borkmann says:
====================
pull-request: bpf 2020-04-10
The following pull-request contains BPF updates for your *net* tree.
We've added 13 non-merge commits during the last 7 day(s) which contain
a total of 13 files changed, 137 insertions(+), 43 deletions(-).
The main changes are:
1) JIT code emission fixes for riscv and arm32, from Luke Nelson and Xi Wang.
2) Disable vmlinux BTF info if GCC_PLUGIN_RANDSTRUCT is used, from Slava Bacherikov.
3) Fix oob write in AF_XDP when meta data is used, from Li RongQing.
4) Fix bpf_get_link_xdp_id() handling on single prog when flags are specified,
from Andrey Ignatov.
5) Fix sk_assign() BPF helper for request sockets that can have sk_reuseport
field uninitialized, from Joe Stringer.
6) Fix mprotect() test case for the BPF LSM, from KP Singh.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- Ignore readonly failures when updating relocs (Chris)
- Fill all the unused space in the GGTT (Chris)
- Return the right vswing table (Jose)
- Don't enable DDI IO power on a TypeC port in TBT mode for ICL+ (Imre)
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Merge tag 'drm-intel-next-fixes-2020-04-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Flush all the reloc_gpu batch (Chris)
- Ignore readonly failures when updating relocs (Chris)
- Fill all the unused space in the GGTT (Chris)
- Return the right vswing table (Jose)
- Don't enable DDI IO power on a TypeC port in TBT mode for ICL+ (Imre)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408215952.GA1623934@intel.com
With amdgpu and CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y, there are
errors like:
BUG: non-zero pgtables_bytes on freeing mm
and:
BUG: Bad rss-counter state
with TTM transparent huge-pages.
Until we've figured out what other TTM drivers do differently compared to
vmwgfx, disable the huge_fault() callback, eliminating transhuge
page-table entries.
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Thomas Hellstrom (VMware) <thomas_os@shipmail.org>
Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200409164925.11912-1-thomas_os@shipmail.org
analogix_dp
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Merge tag 'drm-misc-next-fixes-2020-04-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
A few DMA-related fixes, an OOB fix for virtio and a probe-related fix for
analogix_dp
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200409091424.cfpqqbqjxtkgnfme@gilmour.lan
Summary of modules changes for the 5.7 merge window:
- Trivial zero-length array to flexible-array cleanup
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module updates from Jessica Yu:
"Only a small cleanup this time around: a trivial conversion of
zero-length arrays to flexible arrays"
* tag 'modules-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
kernel: module: Replace zero-length array with flexible-array member
The noisy posix error message in readdir was supposed
to be an FYI (not enabled by default)
CIFS VFS: XXX dev 66306, reparse 0, mode 755
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
- Ensure that the compiler and linker versions are aligned so that ld
doesn't complain about not understanding a .note.gnu.property section
(emitted when pointer authentication is enabled).
- Force -mbranch-protection=none when the feature is not enabled, in
case a compiler may choose a different default value.
- Remove CONFIG_DEBUG_ALIGN_RODATA. It was never in defconfig and rarely
enabled.
- Fix checking 16-bit Thumb-2 instructions checking mask in the
emulation of the SETEND instruction (it could match the bottom half of
a 32-bit Thumb-2 instruction).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Ensure that the compiler and linker versions are aligned so that ld
doesn't complain about not understanding a .note.gnu.property section
(emitted when pointer authentication is enabled).
- Force -mbranch-protection=none when the feature is not enabled, in
case a compiler may choose a different default value.
- Remove CONFIG_DEBUG_ALIGN_RODATA. It was never in defconfig and
rarely enabled.
- Fix checking 16-bit Thumb-2 instructions checking mask in the
emulation of the SETEND instruction (it could match the bottom half
of a 32-bit Thumb-2 instruction).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: armv8_deprecated: Fix undef_hook mask for thumb setend
arm64: remove CONFIG_DEBUG_ALIGN_RODATA feature
arm64: Always force a branch protection mode when the compiler has one
arm64: Kconfig: ptrauth: Add binutils version check to fix mismatch
init/kconfig: Add LD_VERSION Kconfig
- A fix for a crash in machine check handling on pseries (ie. guests)
- A small series to make it possible to disable CONFIG_COMPAT, and turn it off
by default for ppc64le where it's not used.
- A few other miscellaneous fixes and small improvements.
Thanks to:
Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann, Christophe Leroy, Dan
Carpenter, Ganesh Goudar, Geert Uytterhoeven, Geoff Levand, Mahesh Salgaonkar,
Markus Elfring, Michal Suchanek, Nicholas Piggin, Stephen Boyd, Wen Xiong.
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Merge tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull more powerpc updates from Michael Ellerman:
"The bulk of this is the series to make CONFIG_COMPAT user-selectable,
it's been around for a long time but was blocked behind the
syscall-in-C series.
Plus there's also a few fixes and other minor things.
Summary:
- A fix for a crash in machine check handling on pseries (ie. guests)
- A small series to make it possible to disable CONFIG_COMPAT, and
turn it off by default for ppc64le where it's not used.
- A few other miscellaneous fixes and small improvements.
Thanks to: Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann,
Christophe Leroy, Dan Carpenter, Ganesh Goudar, Geert Uytterhoeven,
Geoff Levand, Mahesh Salgaonkar, Markus Elfring, Michal Suchanek,
Nicholas Piggin, Stephen Boyd, Wen Xiong"
* tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Always build the tm-poison test 64-bit
powerpc: Improve ppc_save_regs()
Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled"
powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent memory
powerpc/perf: split callchain.c by bitness
powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
powerpc/64: make buildable without CONFIG_COMPAT
powerpc/perf: consolidate valid_user_sp -> invalid_user_sp
powerpc/perf: consolidate read_user_stack_32
powerpc: move common register copy functions from signal_32.c to signal.c
powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro
powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfig
powerpc/ps3: Remove an unneeded NULL check
powerpc/ps3: Remove duplicate error message
powerpc/powernv: Re-enable imc trace-mode in kernel
powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events.
powerpc/pseries: Fix MCE handling on pseries
selftests/eeh: Skip ahci adapters
powerpc/64s: Fix doorbell wakeup msgclr optimisation
Pull m68knommu update from Greg Ungerer:
"Only a single commit, to remove all use of the obsolete setup_irq()
calls within the m68knommu architecture code"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: Replace setup_irq() by request_irq()
The error could indicate a problem with the Bluetooth device. It
is easier to investigate if the packet's actual length gets logged,
not just the fact that a discrepancy occurred.
Signed-off-by: Daniels Umanovskis <du@axentia.se>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This tag contains the patches I'd like to target for 5.7. It has a handful of
new features:
* Partial support for the Kendryte K210. There are still a few outstanding
issues that I have patches for, but I don't actually have a board to test
them so they're not included yet.
* SBI v0.2 support.
* Fixes to support for building with LLVM-based toolchains. The resulting
images are known not to boot yet.
This builds and boots for me. There is one merge conflict, it's just a Kconfig
merge issue. I can publish a resolved branch if you'd like.
I don't anticipate a part two, but I'll probably have something early in the
RCs to finish up the K210 support.
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Merge tag 'riscv-for-linus-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"This contains a handful of new features:
- Partial support for the Kendryte K210.
There are still a few outstanding issues that I have patches for,
but I don't actually have a board to test them so they're not
included yet.
- SBI v0.2 support.
- Fixes to support for building with LLVM-based toolchains. The
resulting images are known not to boot yet.
I don't anticipate a part two, but I'll probably have something early
in the RCs to finish up the K210 support"
* tag 'riscv-for-linus-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (38 commits)
riscv: create a loader.bin boot image for Kendryte SoC
riscv: Kendryte K210 default config
riscv: Add Kendryte K210 device tree
riscv: Select required drivers for Kendryte SOC
riscv: Add Kendryte K210 SoC support
riscv: Add SOC early init support
riscv: Unaligned load/store handling for M_MODE
RISC-V: Support cpu hotplug
RISC-V: Add supported for ordered booting method using HSM
RISC-V: Add SBI HSM extension definitions
RISC-V: Export SBI error to linux error mapping function
RISC-V: Add cpu_ops and modify default booting method
RISC-V: Move relocate and few other functions out of __init
RISC-V: Implement new SBI v0.2 extensions
RISC-V: Introduce a new config for SBI v0.1
RISC-V: Add SBI v0.2 extension definitions
RISC-V: Add basic support for SBI v0.2
RISC-V: Mark existing SBI as 0.1 SBI.
riscv: Use macro definition instead of magic number
riscv: Add support to dump the kernel page tables
...
When CONFIG_IP_MULTICAST is not set and multicast ip is added to the device
with autojoin flag or when multicast ip is deleted kernel will crash.
steps to reproduce:
ip addr add 224.0.0.0/32 dev eth0
ip addr del 224.0.0.0/32 dev eth0
or
ip addr add 224.0.0.0/32 dev eth0 autojoin
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088
pc : _raw_write_lock_irqsave+0x1e0/0x2ac
lr : lock_sock_nested+0x1c/0x60
Call trace:
_raw_write_lock_irqsave+0x1e0/0x2ac
lock_sock_nested+0x1c/0x60
ip_mc_config.isra.28+0x50/0xe0
inet_rtm_deladdr+0x1a8/0x1f0
rtnetlink_rcv_msg+0x120/0x350
netlink_rcv_skb+0x58/0x120
rtnetlink_rcv+0x14/0x20
netlink_unicast+0x1b8/0x270
netlink_sendmsg+0x1a0/0x3b0
____sys_sendmsg+0x248/0x290
___sys_sendmsg+0x80/0xc0
__sys_sendmsg+0x68/0xc0
__arm64_sys_sendmsg+0x20/0x30
el0_svc_common.constprop.2+0x88/0x150
do_el0_svc+0x20/0x80
el0_sync_handler+0x118/0x190
el0_sync+0x140/0x180
Fixes: 93a714d6b5 ("multicast: Extend ip address command to enable multicast group join/leave on")
Signed-off-by: Taras Chornyi <taras.chornyi@plvision.eu>
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
In rds_free_mr(), it calls rds_destroy_mr(mr) directly. But this
defeats the purpose of reference counting and makes MR free handling
impossible. It means that holding a reference does not guarantee that
it is safe to access some fields. For example, In
rds_cmsg_rdma_dest(), it increases the ref count, unlocks and then
calls mr->r_trans->sync_mr(). But if rds_free_mr() (and
rds_destroy_mr()) is called in between (there is no lock preventing
this to happen), r_trans_private is set to NULL, causing a panic.
Similar issue is in rds_rdma_unuse().
Reported-by: zerons <sironhide0null@gmail.com>
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
And removed rds_mr_put().
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
