ASUS platform Headset Mic was disable by default.
Assigned verb table for Mic pin will enable it.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1155d914c20c40569f56d36c79254879@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This HP Laptop uses ALC236 codec with COEF 0x07 controlling the
mute LED. Enable existing quirk for this device.
Signed-off-by: Luka Guzenko <l.guzenko@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231016221328.1521674-1-l.guzenko@web.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Now that the x86 EFI stub calls into some APIs exposed by the
decompressor (e.g., kaslr_get_random_long()), it is necessary to ensure
that the global boot_params variable is set correctly before doing so.
Note that the decompressor and the kernel proper carry conflicting
declarations for the global variable 'boot_params' so refer to it via an
alias to work around this.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
- Fix fprobe document to add a new ret_ip parameter for callback
functions. This has been introduced in v6.5 but the document was not
updated.
- Fix fprobe to check the number of active retprobes is not zero. This
number is passed from parameter or calculated by the parameter and it
can be zero which is not acceptable. But current code only check it is
not minus.
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Merge tag 'probes-fixes-v6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- Fix fprobe document to add a new ret_ip parameter for callback
functions. This has been introduced in v6.5 but the document was not
updated.
- Fix fprobe to check the number of active retprobes is not zero. This
number is passed from parameter or calculated by the parameter and it
can be zero which is not acceptable. But current code only check it
is not minus.
* tag 'probes-fixes-v6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
fprobe: Fix to ensure the number of active retprobes is not zero
Documentation: probes: Add a new ret_ip callback parameter
- Fix the handling of the phycal timer offset when FEAT_ECV
and CNTPOFF_EL2 are implemented.
- Restore the functionnality of Permission Indirection that
was broken by the Fine Grained Trapping rework
- Cleanup some PMU event sharing code
MIPS:
- Fix W=1 build.
s390:
- One small fix for gisa to avoid stalls.
x86:
- Truncate writes to PMU counters to the counter's width to avoid spurious
overflows when emulating counter events in software.
- Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined
architectural behavior).
- Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to
kick the guest out of emulated halt.
- Fix for loading XSAVE state from an old kernel into a new one.
- Fixes for AMD AVIC
selftests:
- Play nice with %llx when formatting guest printf and assert statements.
- Clean up stale test metadata.
- Zero-initialize structures in memslot perf test to workaround a suspected
"may be used uninitialized" false positives from GCC.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix the handling of the phycal timer offset when FEAT_ECV and
CNTPOFF_EL2 are implemented
- Restore the functionnality of Permission Indirection that was
broken by the Fine Grained Trapping rework
- Cleanup some PMU event sharing code
MIPS:
- Fix W=1 build
s390:
- One small fix for gisa to avoid stalls
x86:
- Truncate writes to PMU counters to the counter's width to avoid
spurious overflows when emulating counter events in software
- Set the LVTPC entry mask bit when handling a PMI (to match
Intel-defined architectural behavior)
- Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work
to kick the guest out of emulated halt
- Fix for loading XSAVE state from an old kernel into a new one
- Fixes for AMD AVIC
selftests:
- Play nice with %llx when formatting guest printf and assert
statements
- Clean up stale test metadata
- Zero-initialize structures in memslot perf test to workaround a
suspected 'may be used uninitialized' false positives from GCC"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
KVM: arm64: timers: Correctly handle TGE flip with CNTPOFF_EL2
KVM: arm64: POR{E0}_EL1 do not need trap handlers
KVM: arm64: Add nPIR{E0}_EL1 to HFG traps
KVM: MIPS: fix -Wunused-but-set-variable warning
KVM: arm64: pmu: Drop redundant check for non-NULL kvm_pmu_events
KVM: SVM: Fix build error when using -Werror=unused-but-set-variable
x86: KVM: SVM: refresh AVIC inhibition in svm_leave_nested()
x86: KVM: SVM: add support for Invalid IPI Vector interception
x86: KVM: SVM: always update the x2avic msr interception
KVM: selftests: Force load all supported XSAVE state in state test
KVM: selftests: Load XSAVE state into untouched vCPU during state test
KVM: selftests: Touch relevant XSAVE state in guest for state test
KVM: x86: Constrain guest-supported xfeatures only at KVM_GET_XSAVE{2}
x86/fpu: Allow caller to constrain xfeatures when copying to uabi buffer
KVM: selftests: Zero-initialize entire test_result in memslot perf test
KVM: selftests: Remove obsolete and incorrect test case metadata
KVM: selftests: Treat %llx like %lx when formatting guest printf
KVM: x86/pmu: Synthesize at most one PMI per VM-exit
KVM: x86: Mask LVTPC when handling a PMI
KVM: x86/pmu: Truncate counter value to allowed width on write
...
- Fix race when opening vhci device
- Avoid memcmp() out of bounds warning
- Correctly bounds check and pad HCI_MON_NEW_INDEX name
- Fix using memcmp when comparing keys
- Ignore error return for hci_devcd_register() in btrtl
- Always check if connection is alive before deleting
- Fix a refcnt underflow problem for hci_conn
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Merge tag 'for-net-2023-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Luiz Augusto von Dentz says:
====================
bluetooth pull request for net:
- Fix race when opening vhci device
- Avoid memcmp() out of bounds warning
- Correctly bounds check and pad HCI_MON_NEW_INDEX name
- Fix using memcmp when comparing keys
- Ignore error return for hci_devcd_register() in btrtl
- Always check if connection is alive before deleting
- Fix a refcnt underflow problem for hci_conn
* tag 'for-net-2023-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name
Bluetooth: avoid memcmp() out of bounds warning
Bluetooth: hci_sock: fix slab oob read in create_monitor_event
Bluetooth: btrtl: Ignore error return for hci_devcd_register()
Bluetooth: hci_event: Fix coding style
Bluetooth: hci_event: Fix using memcmp when comparing keys
Bluetooth: Fix a refcnt underflow problem for hci_conn
Bluetooth: hci_sync: always check if connection is alive before deleting
Bluetooth: Reject connection with the device which has same BD_ADDR
Bluetooth: hci_event: Ignore NULL link key
Bluetooth: ISO: Fix invalid context error
Bluetooth: vhci: Fix race when opening vhci device
====================
Link: https://lore.kernel.org/r/20231014031336.1664558-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the smc_listen_work(), if smc_listen_prfx_check() failed,
the real reason: SMC_CLC_DECL_DIFFPREFIX was dropped, and
SMC_CLC_DECL_NOSMCDEV was returned.
Althrough this is also kind of SMC_CLC_DECL_NOSMCDEV, but return
the real reason is much friendly for debugging.
Fixes: e49300a6bf ("net/smc: add listen processing for SMC-Rv2")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Link: https://lore.kernel.org/r/20231012123729.29307-1-dust.li@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In sys_copyarea(), the local variable bits_per_line is needlessly typed as
*unsigned long* -- which is a 32-bit type on the 32-bit arches and a 64-bit
type on the 64-bit arches; that variable's value is derived from the __u32
typed fb_fix_screeninfo::line_length field (multiplied by 8u) and a 32-bit
*unsigned int* type should still be enough to store the # of bits per line.
Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Helge Deller <deller@gmx.de>
In cfb_copyarea(), the local variable bits_per_line is needlessly typed as
*unsigned long* -- which is a 32-bit type on the 32-bit arches and a 64-bit
type on the 64-bit arches; that variable's value is derived from the __u32
typed fb_fix_screeninfo::line_length field (multiplied by 8u) and a 32-bit
*unsigned int* type should still be enough to store the # of bits per line.
Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Helge Deller <deller@gmx.de>
Delete the v86d netlink only after all the VBE tasks have been
completed.
Fixes initial state restore on module unload:
uvesafb: VBE state restore call failed (eax=0x4f04, err=-19)
Signed-off-by: Jorge Maidana <jorgem.linux@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
uvesafb_exec() is a static function defined and called only in
drivers/video/fbdev/uvesafb.c, remove the prototype from
include/video/uvesafb.h.
Fixes the warning:
./include/video/uvesafb.h:112:12: warning: 'uvesafb_exec' declared 'static' but never defined [-Wunused-function]
when including '<video/uvesafb.h>' in an external program.
Signed-off-by: Jorge Maidana <jorgem.linux@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This is a global function that is only referenced as an initcall. This causes
a warning:
drivers/video/fbdev/sa1100fb.c:1218:12: error: no previous prototype for 'sa1100fb_init' [-Werror=missing-prototypes]
Make it static instead.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Helge Deller <deller@gmx.de>
The MediaTek DRM driver implements GEM PRIME vmap by fetching the
sg_table for the object, iterating through the pages, and then
vmapping them. In essence, unlike the GEM DMA helpers which vmap
when the object is first created or imported, the MediaTek version
does it on request.
Unfortunately, the code never correctly frees the sg_table contents.
This results in a kernel memory leak. On a Hayato device with a text
console on the internal display, this results in the system running
out of memory in a few days from all the console screen cursor updates.
Add sg_free_table() to correctly free the contents of the sg_table. This
was missing despite explicitly required by mtk_gem_prime_get_sg_table().
Also move the "out" shortcut label to after the kfree() call for the
sg_table. Having sg_free_table() together with kfree() makes more sense.
The shortcut is only used when the object already has a kernel address,
in which case the pointer is NULL and kfree() does nothing. Hence this
change causes no functional change.
Fixes: 3df64d7b0a ("drm/mediatek: Implement gem prime vmap/vunmap function")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20231004083226.1940055-1-wenst@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
The Qualcomm LPASS LPI pin controller driver uses one lock for guarding
Read-Modify-Write code for slew rate registers. However the pin
configuration and muxing registers have exactly the same RMW code but
are not protected.
Pin controller framework does not provide locking here, thus it is
possible to trigger simultaneous change of pin configuration registers
resulting in non-atomic changes.
Protect from concurrent access by re-using the same lock used to cover
the slew rate register. Using the same lock instead of adding second
one will make more sense, once we add support for newer Qualcomm SoC,
where slew rate is configured in the same register as pin
configuration/muxing.
Fixes: 6e261d1090 ("pinctrl: qcom: Add sm8250 lpass lpi pinctrl driver")
Cc: stable@vger.kernel.org
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231013145705.219954-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
With the current cleanup flow, we could trigger a NULL pointer
dereference if there is a delayed destruction of a BO with a
system resource that gets executed on drain_workqueue() call,
as we attempt to free a resource using an already released
resource manager.
Remove the device from the device list and drain its workqueue
before releasing the system domain manager in ttm_device_fini().
Signed-off-by: Karolina Stolarek <karolina.stolarek@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231016121525.2237838-1-karolina.stolarek@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
When physical memory is defined under z/VM using DEF STOR CONFIG, there
may be memory holes that are not hotpluggable memory. In such cases,
DCSS mapping could be placed in one of these memory holes. Subsequently,
attempting memory access to such DCSS mapping would result in a kasan
failure because there is no shadow memory mapping for it.
To maintain consistency with cases where DCSS mapping is positioned after
the kernel identity mapping, which is then covered by kasan zero shadow
mapping, handle the scenario above by populating zero shadow mapping
for memory holes where DCSS mapping could potentially be placed.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
When dma_set_coherent_mask() fails, sch->lock has not been
freed, which is allocated in css_sch_create_locks(), leading
to a memleak.
Fixes: 4520a91a97 ("s390/cio: use dma helpers for setting masks")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Message-Id: <20230921071412.13806-1-dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/linux-s390/bd38baa8-7b9d-4d89-9422-7e943d626d6e@linux.ibm.com/
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Fixes: 8bd2f71054 ("virtio_ring: introduce dma sync api for virtqueue")
also add dma sync api for virtio test.
Signed-off-by: Liming Wu <liming.wu@jaguarmicro.com>
Message-Id: <20231008031734.1095-1-liming.wu@jaguarmicro.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Both the JEDEC and ONFI specification say that read cache sequential
support is an optional command. This means that we not only need to
check whether the individual controller supports the command, we also
need to check the parameter pages for both ONFI and JEDEC NAND flashes
before enabling sequential cache reads.
This fixes support for NAND flashes which don't support enabling cache
reads, i.e. Samsung K9F4G08U0F or Toshiba TC58NVG0S3HTA00.
Sequential cache reads are now only available for ONFI and JEDEC
devices, if individual vendors implement this, it needs to be enabled
per vendor.
Tested on i.MX6Q with a Samsung NAND flash chip that doesn't support
sequential reads.
Fixes: 003fe4b954 ("mtd: rawnand: Support for sequential cache reads")
Cc: stable@vger.kernel.org
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230922141717.35977-1-r.czerwinski@pengutronix.de
From: Aaron Conole <aconole@redhat.com>
To: netdev@vger.kernel.org
Cc: dev@openvswitch.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org, Pravin B Shelar <pshelar@ovn.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Adrian Moreno <amorenoz@redhat.com>,
Eelco Chaudron <echaudro@redhat.com>,
shuah@kernel.org
Subject: [PATCH net v2 0/4] selftests: openvswitch: Minor fixes for some systems
Date: Wed, 11 Oct 2023 15:49:35 -0400 [thread overview]
Message-ID: <20231011194939.704565-1-aconole@redhat.com> (raw)
A number of corner cases were caught when trying to run the selftests on
older systems. Missed skip conditions, some error cases, and outdated
python setups would all report failures but the issue would actually be
related to some other condition rather than the selftest suite.
Address these individual cases.
====================
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ct_tuple v4 data structure decode / encode routines were using
the v6 IP address decode and relying on default encode. This could
cause exceptions during encode / decode depending on how a ct4
tuple would appear in a netlink message.
Caught during code review.
Fixes: e52b07aa1a ("selftests: openvswitch: add flow dump support")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kernels that don't have support for openvswitch drop reasons also
won't have the drop counter reasons, so we should skip the test
completely. It previously wasn't possible to build a test case
for this without polluting the datapath, so we introduce a mechanism
to clear all the flows from a datapath allowing us to test for
explicit drop actions, and then clear the flows to build the
original test case.
Fixes: 4242029164 ("selftests: openvswitch: add explicit drop testcase")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of fatal signal, or early abort at least cleanup the current
test case.
Fixes: 25f16c873f ("selftests: add openvswitch selftest suite")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paolo Abeni reports that on some systems the pyroute2 version isn't
new enough to run the test suite. Ensure that we support a minimum
version of 0.6 for all cases (which does include the existing ones).
The 0.6.1 version was released in May of 2021, so should be
propagated to most installations at this point.
The alternative that Paolo proposed was to only skip when the
add-flow is being run. This would be okay for most cases, except
if a future test case is added that needs to do flow dump without
an associated add (just guessing). In that case, it could also be
broken and we would need additional skip logic anyway. Just draw
a line in the sand now.
Fixes: 25f16c873f ("selftests: add openvswitch selftest suite")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Closes: https://lore.kernel.org/lkml/8470c431e0930d2ea204a9363a60937289b7fdbe.camel@redhat.com/
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 45e34c8af5, and the
two subsequent fixes to it:
3f874c9b2a ("x86/smp: Don't send INIT to non-present and non-booted CPUs")
b1472a60a5 ("x86/smp: Don't send INIT to boot CPU")
because it seems to result in hung machines at shutdown. Particularly
some Dell machines, but Thomas says
"The rest seems to be Lenovo and Sony with Alderlake/Raptorlake CPUs -
at least that's what I could figure out from the various bug reports.
I don't know which CPUs the DELL machines have, so I can't say it's a
pattern.
I agree with the revert for now"
Ashok Raj chimes in:
"There was a report (probably this same one), and it turns out it was a
bug in the BIOS SMI handler.
The client BIOS's were waiting for the lowest APICID to be the SMI
rendevous master. If this is MeteorLake, the BSP wasn't the one with
the lowest APIC and it triped here.
The BIOS change is also being pushed to others for assimilation :)
Server BIOS's had this correctly for a while now"
and it does look likely to be some bad interaction between SMI and the
non-BSP cores having put into INIT (and thus unresponsive until reset).
Link: https://bbs.archlinux.org/viewtopic.php?pid=2124429
Link: https://www.reddit.com/r/openSUSE/comments/16qq99b/tumbleweed_shutdown_did_not_finish_completely/
Link: https://forum.artixlinux.org/index.php/topic,5997.0.html
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2241279
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Syzbot reported two new paths to hit an internal WARNING using the
new virtio gso type VIRTIO_NET_HDR_GSO_UDP_L4.
RIP: 0010:skb_checksum_help+0x4a2/0x600 net/core/dev.c:3260
skb len=64521 gso_size=344
and
RIP: 0010:skb_warn_bad_offload+0x118/0x240 net/core/dev.c:3262
Older virtio types have historically had loose restrictions, leading
to many entirely impractical fuzzer generated packets causing
problems deep in the kernel stack. Ideally, we would have had strict
validation for all types from the start.
New virtio types can have tighter validation. Limit UDP GSO packets
inserted via virtio to the same limits imposed by the UDP_SEGMENT
socket interface:
1. must use checksum offload
2. checksum offload matches UDP header
3. no more segments than UDP_MAX_SEGMENTS
4. UDP GSO does not take modifier flags, notably SKB_GSO_TCP_ECN
Fixes: 860b7f27b8 ("linux/virtio_net.h: Support USO offload in vnet header.")
Reported-by: syzbot+01cdbc31e9c0ae9b33ac@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/0000000000005039270605eb0b7f@google.com/
Reported-by: syzbot+c99d835ff081ca30f986@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/0000000000005426680605eb0b9f@google.com/
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 295525e29a ("virtio_net: merge dma operations when filling
mergeable buffers") unmaps the buffer with DMA_ATTR_SKIP_CPU_SYNC when
the dma->ref is zero. We do that with DMA_ATTR_SKIP_CPU_SYNC, because we
do not want to do the sync for the entire page_frag. But that misses the
sync for the current area.
This patch does cpu sync regardless of whether the ref is zero or not.
Fixes: 295525e29a ("virtio_net: merge dma operations when filling mergeable buffers")
Reported-by: Michael Roth <michael.roth@amd.com>
Closes: http://lore.kernel.org/all/20230926130451.axgodaa6tvwqs3ut@amd.com
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit f6fca3917b "btrfs: store chunk size in space-info struct"
broke data chunk allocations on non-zoned multi-device filesystems when
using default chunk_size. Commit 5da431b71d "btrfs: fix the max chunk
size and stripe length calculation" partially fixed that, and this patch
completes the fix for that case.
After commit f6fca3917b and 5da431b71d, the sequence of events for
a data chunk allocation on a non-zoned filesystem is:
1. btrfs_create_chunk calls init_alloc_chunk_ctl, which copies
space_info->chunk_size (default 10 GiB) to ctl->max_stripe_len
unmodified. Before f6fca3917b, ctl->max_stripe_len value was
1 GiB for non-zoned data chunks and not configurable.
2. btrfs_create_chunk calls gather_device_info which consumes
and produces more fields of chunk_ctl.
3. gather_device_info multiplies ctl->max_stripe_len by
ctl->dev_stripes (which is 1 in all cases except dup)
and calls find_free_dev_extent with that number as num_bytes.
4. find_free_dev_extent locates the first dev_extent hole on
a device which is at least as large as num_bytes. With default
max_chunk_size from f6fca3917b, it finds the first hole which is
longer than 10 GiB, or the largest hole if that hole is shorter
than 10 GiB. This is different from the pre-f6fca3917b4d
behavior, where num_bytes is 1 GiB, and find_free_dev_extent
may choose a different hole.
5. gather_device_info repeats step 4 with all devices to find
the first or largest dev_extent hole that can be allocated on
each device.
6. gather_device_info sorts the device list by the hole size
on each device, using total unallocated space on each device to
break ties, then returns to btrfs_create_chunk with the list.
7. btrfs_create_chunk calls decide_stripe_size_regular.
8. decide_stripe_size_regular finds the largest stripe_len that
fits across the first nr_devs device dev_extent holes that were
found by gather_device_info (and satisfies other constraints
on stripe_len that are not relevant here).
9. decide_stripe_size_regular caps the length of the stripe it
computed at 1 GiB. This cap appeared in 5da431b71d to correct
one of the other regressions introduced in f6fca3917b.
10. btrfs_create_chunk creates a new chunk with the above
computed size and number of devices.
At step 4, gather_device_info() has found a location where stripe up to
10 GiB in length could be allocated on several devices, and selected
which devices should have a dev_extent allocated on them, but at step
9, only 1 GiB of the space that was found on each device can be used.
This mismatch causes new suboptimal chunk allocation cases that did not
occur in pre-f6fca3917b4d kernels.
Consider a filesystem using raid1 profile with 3 devices. After some
balances, device 1 has 10x 1 GiB unallocated space, while devices 2
and 3 have 1x 10 GiB unallocated space, i.e. the same total amount of
space, but distributed across different numbers of dev_extent holes.
For visualization, let's ignore all the chunks that were allocated before
this point, and focus on the remaining holes:
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10x 1 GiB unallocated)
Device 2: [__________] (10 GiB contig unallocated)
Device 3: [__________] (10 GiB contig unallocated)
Before f6fca3917b, the allocator would fill these optimally by
allocating chunks with dev_extents on devices 1 and 2 ([12]), 1 and 3
([13]), or 2 and 3 ([23]):
[after 0 chunk allocations]
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10 GiB)
Device 2: [__________] (10 GiB)
Device 3: [__________] (10 GiB)
[after 1 chunk allocation]
Device 1: [12] [_] [_] [_] [_] [_] [_] [_] [_] [_]
Device 2: [12] [_________] (9 GiB)
Device 3: [__________] (10 GiB)
[after 2 chunk allocations]
Device 1: [12] [13] [_] [_] [_] [_] [_] [_] [_] [_] (8 GiB)
Device 2: [12] [_________] (9 GiB)
Device 3: [13] [_________] (9 GiB)
[after 3 chunk allocations]
Device 1: [12] [13] [12] [_] [_] [_] [_] [_] [_] [_] (7 GiB)
Device 2: [12] [12] [________] (8 GiB)
Device 3: [13] [_________] (9 GiB)
[...]
[after 12 chunk allocations]
Device 1: [12] [13] [12] [13] [12] [13] [12] [13] [_] [_] (2 GiB)
Device 2: [12] [12] [23] [23] [12] [12] [23] [23] [__] (2 GiB)
Device 3: [13] [13] [23] [23] [13] [23] [13] [23] [__] (2 GiB)
[after 13 chunk allocations]
Device 1: [12] [13] [12] [13] [12] [13] [12] [13] [12] [_] (1 GiB)
Device 2: [12] [12] [23] [23] [12] [12] [23] [23] [12] [_] (1 GiB)
Device 3: [13] [13] [23] [23] [13] [23] [13] [23] [__] (2 GiB)
[after 14 chunk allocations]
Device 1: [12] [13] [12] [13] [12] [13] [12] [13] [12] [13] (full)
Device 2: [12] [12] [23] [23] [12] [12] [23] [23] [12] [_] (1 GiB)
Device 3: [13] [13] [23] [23] [13] [23] [13] [23] [13] [_] (1 GiB)
[after 15 chunk allocations]
Device 1: [12] [13] [12] [13] [12] [13] [12] [13] [12] [13] (full)
Device 2: [12] [12] [23] [23] [12] [12] [23] [23] [12] [23] (full)
Device 3: [13] [13] [23] [23] [13] [23] [13] [23] [13] [23] (full)
This allocates all of the space with no waste. The sorting function used
by gather_device_info considers free space holes above 1 GiB in length
to be equal to 1 GiB, so once find_free_dev_extent locates a sufficiently
long hole on each device, all the holes appear equal in the sort, and the
comparison falls back to sorting devices by total free space. This keeps
usable space on each device equal so they can all be filled completely.
After f6fca3917b, the allocator prefers the devices with larger holes
over the devices with more free space, so it makes bad allocation choices:
[after 1 chunk allocation]
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10 GiB)
Device 2: [23] [_________] (9 GiB)
Device 3: [23] [_________] (9 GiB)
[after 2 chunk allocations]
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10 GiB)
Device 2: [23] [23] [________] (8 GiB)
Device 3: [23] [23] [________] (8 GiB)
[after 3 chunk allocations]
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10 GiB)
Device 2: [23] [23] [23] [_______] (7 GiB)
Device 3: [23] [23] [23] [_______] (7 GiB)
[...]
[after 9 chunk allocations]
Device 1: [_] [_] [_] [_] [_] [_] [_] [_] [_] [_] (10 GiB)
Device 2: [23] [23] [23] [23] [23] [23] [23] [23] [23] [_] (1 GiB)
Device 3: [23] [23] [23] [23] [23] [23] [23] [23] [23] [_] (1 GiB)
[after 10 chunk allocations]
Device 1: [12] [_] [_] [_] [_] [_] [_] [_] [_] [_] (9 GiB)
Device 2: [23] [23] [23] [23] [23] [23] [23] [23] [12] (full)
Device 3: [23] [23] [23] [23] [23] [23] [23] [23] [_] (1 GiB)
[after 11 chunk allocations]
Device 1: [12] [13] [_] [_] [_] [_] [_] [_] [_] [_] (8 GiB)
Device 2: [23] [23] [23] [23] [23] [23] [23] [23] [12] (full)
Device 3: [23] [23] [23] [23] [23] [23] [23] [23] [13] (full)
No further allocations are possible, with 8 GiB wasted (4 GiB of data
space). The sort in gather_device_info now considers free space in
holes longer than 1 GiB to be distinct, so it will prefer devices 2 and
3 over device 1 until all but 1 GiB is allocated on devices 2 and 3.
At that point, with only 1 GiB unallocated on every device, the largest
hole length on each device is equal at 1 GiB, so the sort finally moves
to ordering the devices with the most free space, but by this time it
is too late to make use of the free space on device 1.
Note that it's possible to contrive a case where the pre-f6fca3917b4d
allocator fails the same way, but these cases generally have extensive
dev_extent fragmentation as a precondition (e.g. many holes of 768M
in length on one device, and few holes 1 GiB in length on the others).
With the regression in f6fca3917b, bad chunk allocation can occur even
under optimal conditions, when all dev_extent holes are exact multiples
of stripe_len in length, as in the example above.
Also note that post-f6fca3917b4d kernels do treat dev_extent holes
larger than 10 GiB as equal, so the bad behavior won't show up on a
freshly formatted filesystem; however, as the filesystem ages and fills
up, and holes ranging from 1 GiB to 10 GiB in size appear, the problem
can show up as a failure to balance after adding or removing devices,
or an unexpected shortfall in available space due to unequal allocation.
To fix the regression and make data chunk allocation work
again, set ctl->max_stripe_len back to the original SZ_1G, or
space_info->chunk_size if that's smaller (the latter can happen if the
user set space_info->chunk_size to less than 1 GiB via sysfs, or it's
a 32 MiB system chunk with a hardcoded chunk_size and stripe_len).
While researching the background of the earlier commits, I found that an
identical fix was already proposed at:
https://lore.kernel.org/linux-btrfs/de83ac46-a4a3-88d3-85ce-255b7abc5249@gmx.com/
The previous review missed one detail: ctl->max_stripe_len is used
before decide_stripe_size_regular() is called, when it is too late for
the changes in that function to have any effect. ctl->max_stripe_len is
not used directly by decide_stripe_size_regular(), but the parameter
does heavily influence the per-device free space data presented to
the function.
Fixes: f6fca3917b ("btrfs: store chunk size in space-info struct")
CC: stable@vger.kernel.org # 6.1+
Link: https://lore.kernel.org/linux-btrfs/20231007051421.19657-1-ce3g8jdj@umail.furryterror.org/
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Signed-off-by: David Sterba <dsterba@suse.com>
Here are some USB and Thunderbolt driver fixes for 6.6-rc6 to resolve a
number of small reported issues. Included in here are:
- thunderbolt driver fixes
- xhci driver fixes
- cdns3 driver fixes
- musb driver fixes
- a number of typec driver fixes
- a few other small driver fixes
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-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are some USB and Thunderbolt driver fixes for 6.6-rc6 to resolve
a number of small reported issues. Included in here are:
- thunderbolt driver fixes
- xhci driver fixes
- cdns3 driver fixes
- musb driver fixes
- a number of typec driver fixes
- a few other small driver fixes
All of these have been in linux-next with no reported issues"
* tag 'usb-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
usb: typec: ucsi: Use GET_CAPABILITY attributes data to set power supply scope
usb: typec: ucsi: Fix missing link removal
usb: typec: altmodes/displayport: Signal hpd low when exiting mode
xhci: Preserve RsvdP bits in ERSTBA register correctly
xhci: Clear EHB bit only at end of interrupt handler
xhci: track port suspend state correctly in unsuccessful resume cases
usb: xhci: xhci-ring: Use sysdev for mapping bounce buffer
usb: typec: ucsi: Clear EVENT_PENDING bit if ucsi_send_command fails
usb: misc: onboard_hub: add support for Microchip USB2412 USB 2.0 hub
usb: gadget: udc-xilinx: replace memcpy with memcpy_toio
usb: cdns3: Modify the return value of cdns_set_active () to void when CONFIG_PM_SLEEP is disabled
usb: dwc3: Soft reset phy on probe for host
usb: hub: Guard against accesses to uninitialized BOS descriptors
usb: typec: qcom: Update the logic of regulator enable and disable
usb: gadget: ncm: Handle decoding of multiple NTB's in unwrap call
usb: musb: Get the musb_qh poniter after musb_giveback
usb: musb: Modify the "HWVers" register address
usb: cdnsp: Fixes issue with dequeuing not queued requests
thunderbolt: Restart XDomain discovery handshake after failure
thunderbolt: Correct TMU mode initialization from hardware
...
Here are some small tty/serial driver fixes for 6.6-rc6 that resolve
some reported issues. Included in here are:
- serial core pm runtime fix for issue reported by many
- 8250_omap driver fix
- rs485 spinlock fix for reported problem
- ams-delta bugfix for previous tty api changes in -rc1 that missed
this driver that never seems to get built in any test systems
All of these have been in linux-next for over a week with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty/serial driver fixes for 6.6-rc6 that resolve
some reported issues. Included in here are:
- serial core pm runtime fix for issue reported by many
- 8250_omap driver fix
- rs485 spinlock fix for reported problem
- ams-delta bugfix for previous tty api changes in -rc1 that missed
this driver that never seems to get built in any test systems
All of these have been in linux-next for over a week with no reported
problems"
* tag 'tty-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
ASoC: ti: ams-delta: Fix cx81801_receive() argument types
serial: core: Fix checks for tx runtime PM state
serial: 8250_omap: Fix errors with no_console_suspend
serial: Reduce spinlocked portion of uart_rs485_config()
Here is a small set of char/misc and other smaller driver subsystem
fixes for 6.6-rc6. Included in here are:
- lots of iio driver fixes
- binder memory leak fix
- mcb driver fixes
- counter driver fixes
- firmware loader documentation fix
- embargoed hardware issue documentation update
All of these have been in linux-next for over a week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here is a small set of char/misc and other smaller driver subsystem
fixes for 6.6-rc6. Included in here are:
- lots of iio driver fixes
- binder memory leak fix
- mcb driver fixes
- counter driver fixes
- firmware loader documentation fix
- documentation update for embargoed hardware issues
All of these have been in linux-next for over a week with no reported
issues"
* tag 'char-misc-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (22 commits)
iio: pressure: ms5611: ms5611_prom_is_valid false negative bug
dt-bindings: iio: adc: adi,ad7292: Fix additionalProperties on channel nodes
iio: adc: ad7192: Correct reference voltage
iio: light: vcnl4000: Don't power on/off chip in config
iio: addac: Kconfig: update ad74413r selections
iio: pressure: dps310: Adjust Timeout Settings
iio: imu: bno055: Fix missing Kconfig dependencies
iio: adc: imx8qxp: Fix address for command buffer registers
iio: cros_ec: fix an use-after-free in cros_ec_sensors_push_data()
iio: irsd200: fix -Warray-bounds bug in irsd200_trigger_handler
dt-bindings: iio: rohm,bu27010: add missing vdd-supply to example
binder: fix memory leaks of spam and pending work
firmware_loader: Update contact emails for ABI docs
Documentation: embargoed-hardware-issues.rst: Clarify prenotifaction
mcb: remove is_added flag from mcb_device struct
coresight: tmc-etr: Disable warnings for allocation failures
coresight: Fix run time warnings while reusing ETR buffer
iio: admv1013: add mixer_vgate corner cases
iio: pressure: bmp280: Fix NULL pointer exception
iio: dac: ad3552r: Correct device IDs
...
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Merge tag 'ovl-fixes-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs fixes from Amir Goldstein:
- Various fixes for regressions due to conversion to new mount
api in v6.5
- Disable a new mount option syntax (append lowerdir) that was
added in v6.5 because we plan to add a different lowerdir
append syntax in v6.7
* tag 'ovl-fixes-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: temporarily disable appending lowedirs
ovl: fix regression in showing lowerdir mount option
ovl: fix regression in parsing of mount options with escaped comma
fs: factor out vfs_parse_monolithic_sep() helper
- Fix softlockup/crash when using hcall tracing.
- Fix pte_access_permitted() for PAGE_NONE on 8xx.
- Fix inverted pte_young() test in __ptep_test_and_clear_young() on 64-bit BookE.
- Fix unhandled math emulation exception on 85xx.
- Fix kernel crash on syscall return on 476.
Thanks to: Athira Rajeev, Christophe Leroy, Eddie James, Naveen N Rao.
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Merge tag 'powerpc-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix softlockup/crash when using hcall tracing
- Fix pte_access_permitted() for PAGE_NONE on 8xx
- Fix inverted pte_young() test in __ptep_test_and_clear_young()
on 64-bit BookE
- Fix unhandled math emulation exception on 85xx
- Fix kernel crash on syscall return on 476
Thanks to Athira Rajeev, Christophe Leroy, Eddie James, and Naveen N
Rao.
* tag 'powerpc-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/47x: Fix 47x syscall return crash
powerpc/85xx: Fix math emulation exception
powerpc/64e: Fix wrong test in __ptep_test_and_clear_young()
powerpc/8xx: Fix pte_access_permitted() for PAGE_NONE
powerpc/pseries: Remove unused r0 in the hcall tracing code
powerpc/pseries: Fix STK_PARAM access in the hcall tracing code
prototypes between architectures.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'smp-urgent-2023-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Ingo Molnar:
"Fix a Longsoon build warning by harmonizing the
arch_[un]register_cpu() prototypes between architectures"
* tag 'smp-urgent-2023-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu-hotplug: Provide prototypes for arch CPU registration
Driver allocates the LL2 rx buffers from kmalloc()
area to construct the skb using slab_build_skb()
The required size allocation seems to have overlooked
for accounting both skb_shared_info size and device
placement padding bytes which results into the below
panic when doing skb_put() for a standard MTU sized frame.
skbuff: skb_over_panic: text:ffffffffc0b0225f len:1514 put:1514
head:ff3dabceaf39c000 data:ff3dabceaf39c042 tail:0x62c end:0x566
dev:<NULL>
…
skb_panic+0x48/0x4a
skb_put.cold+0x10/0x10
qed_ll2b_complete_rx_packet+0x14f/0x260 [qed]
qed_ll2_rxq_handle_completion.constprop.0+0x169/0x200 [qed]
qed_ll2_rxq_completion+0xba/0x320 [qed]
qed_int_sp_dpc+0x1a7/0x1e0 [qed]
This patch fixes this by accouting skb_shared_info and device
placement padding size bytes when allocating the buffers.
Cc: David S. Miller <davem@davemloft.net>
Fixes: 0a7fb11c23 ("qed: Add Light L2 support")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Play nice with %llx when formatting guest printf and assert statements.
- Clean up stale test metadata.
- Zero-initialize structures in memslot perf test to workaround a suspected
"may be used uninitialized" false positives from GCC.
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Merge tag 'kvm-x86-selftests-6.6-fixes' of https://github.com/kvm-x86/linux into HEAD
KVM selftests fixes for 6.6:
- Play nice with %llx when formatting guest printf and assert statements.
- Clean up stale test metadata.
- Zero-initialize structures in memslot perf test to workaround a suspected
"may be used uninitialized" false positives from GCC.
- Truncate writes to PMU counters to the counter's width to avoid spurious
overflows when emulating counter events in software.
- Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined
architectural behavior).
- Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to
kick the guest out of emulated halt.
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Merge tag 'kvm-x86-pmu-6.6-fixes' of https://github.com/kvm-x86/linux into HEAD
KVM x86/pmu fixes for 6.6:
- Truncate writes to PMU counters to the counter's width to avoid spurious
overflows when emulating counter events in software.
- Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined
architectural behavior).
- Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to
kick the guest out of emulated halt.
- Fix the handling of the phycal timer offset when FEAT_ECV
and CNTPOFF_EL2 are implemented.
- Restore the functionnality of Permission Indirection that
was broken by the Fine Grained Trapping rework
- Cleanup some PMU event sharing code
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Merge tag 'kvmarm-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.6, take #2
- Fix the handling of the phycal timer offset when FEAT_ECV
and CNTPOFF_EL2 are implemented.
- Restore the functionnality of Permission Indirection that
was broken by the Fine Grained Trapping rework
- Cleanup some PMU event sharing code
Christophe reported that the change to ARCH_FORCE_MAX_ORDER to limit the
range to 10 had broken his ability to configure hugepages:
# echo 1 > /sys/kernel/mm/hugepages/hugepages-8192kB/nr_hugepages
sh: write error: Invalid argument
Several of the powerpc defconfigs previously set the
ARCH_FORCE_MAX_ORDER value to 12, via the definition in
arch/powerpc/configs/fsl-emb-nonhw.config, used by:
mpc85xx_defconfig
mpc85xx_smp_defconfig
corenet32_smp_defconfig
corenet64_smp_defconfig
mpc86xx_defconfig
mpc86xx_smp_defconfig
Fix it by increasing the allowed range to 12 to restore the previous
behaviour.
Fixes: 358e526a16 ("powerpc/mm: Reinstate ARCH_FORCE_MAX_ORDER ranges")
Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Closes: https://lore.kernel.org/all/8011d806-5b30-bf26-2bfe-a08c39d57e20@csgroup.eu/
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230824122849.942072-1-mpe@ellerman.id.au
