Some small, obvious (in hindsight) bugfixes:
- new ioctl in vhost-vdpa has a wrong # - not too late to fix
- vhost has apparently been lacking an smp_rmb() -
due to code duplication :( The duplication will be fixed in
the next merge cycle, this is a minimal fix.
- an error message in vhost talks about guest moving used index -
which of course never happens, guest only ever moves the
available index.
- i2c-virtio didn't set the driver owner so it did not get
refcounted correctly.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio bugfixes from Michael Tsirkin:
"Some small, obvious (in hindsight) bugfixes:
- new ioctl in vhost-vdpa has a wrong # - not too late to fix
- vhost has apparently been lacking an smp_rmb() - due to code
duplication :( The duplication will be fixed in the next merge
cycle, this is a minimal fix
- an error message in vhost talks about guest moving used index -
which of course never happens, guest only ever moves the available
index
- i2c-virtio didn't set the driver owner so it did not get refcounted
correctly"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: correct misleading printing information
vhost-vdpa: change ioctl # for VDPA_GET_VRING_SIZE
virtio: store owner from modules with register_virtio_driver()
vhost: Add smp_rmb() in vhost_enable_notify()
vhost: Add smp_rmb() in vhost_vq_avail_empty()
- fix up swiotlb buffer padding even more (Petr Tesarik)
- fix for partial dma_sync on swiotlb (Michael Kelley)
- swiotlb debugfs fix (Dexuan Cui)
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Merge tag 'dma-maping-6.9-2024-04-14' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- fix up swiotlb buffer padding even more (Petr Tesarik)
- fix for partial dma_sync on swiotlb (Michael Kelley)
- swiotlb debugfs fix (Dexuan Cui)
* tag 'dma-maping-6.9-2024-04-14' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: do not set total_used to 0 in swiotlb_create_debugfs_files()
swiotlb: fix swiotlb_bounce() to do partial sync's correctly
swiotlb: extend buffer pre-padding to alloc_align_mask if necessary
- Add the mask_port_map parameter to the ahci driver. This is a
follow-up to the recent snafu with the ASMedia controller and its
virtual port hidding port-multiplier devices. As ASMedia confirmed
that there is no way to determine if these slow-to-probe virtual
ports are actually representing the ports of a port-multiplier
devices, this new parameter allow masking ports to significantly
speed up probing during system boot, resulting in shorter boot times.
- A fix for an incorrect handling of a port unlock in
ata_scsi_dev_rescan().
- Allow command duration limits to be detected for ACS-4 devices are
there are such devices out in the field.
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Merge tag 'ata-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Add the mask_port_map parameter to the ahci driver. This is a
follow-up to the recent snafu with the ASMedia controller and its
virtual port hidding port-multiplier devices. As ASMedia confirmed
that there is no way to determine if these slow-to-probe virtual
ports are actually representing the ports of a port-multiplier
devices, this new parameter allow masking ports to significantly
speed up probing during system boot, resulting in shorter boot times.
- A fix for an incorrect handling of a port unlock in
ata_scsi_dev_rescan().
- Allow command duration limits to be detected for ACS-4 devices are
there are such devices out in the field.
* tag 'ata-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: Allow command duration limits detection for ACS-4 drives
ata: libata-scsi: Fix ata_scsi_dev_rescan() error path
ata: ahci: Add mask_port_map module parameter
- Suppress a coccicheck warning using str_plural().
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Merge tag 'zonefs-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
- Suppress a coccicheck warning using str_plural()
* tag 'zonefs-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: Use str_plural() to fix Coccinelle warning
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Merge tag 'v6.9-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fix for oops in cifs_get_fattr of deleted files
- fix for the remote open counter going negative in some directory
lease cases
- fix for mkfifo to instantiate dentry to avoid possible crash
- important fix to allow handling key rotation for mount and remount
(ie cases that are becoming more common when password that was used
for the mount will expire soon but will be replaced by new password)
* tag 'v6.9-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: fix broken reconnect when password changing on the server by allowing password rotation
smb: client: instantiate when creating SFU files
smb3: fix Open files on server counter going negative
smb: client: fix NULL ptr deref in cifs_mark_open_handles_for_deleted_file()
Even though the command duration limits (CDL) feature was first added
in ACS-5 (major version 12), there are some ACS-4 (major version 11)
drives that implement CDL as well.
IDENTIFY_DEVICE, SUPPORTED_CAPABILITIES, and CURRENT_SETTINGS log pages
are mandatory in the ACS-4 standard so it should be safe to read these
log pages on older drives implementing the ACS-4 standard.
Fixes: 62e4a60e0c ("scsi: ata: libata: Detect support for command duration limits")
Cc: stable@vger.kernel.org
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Commit 0c76106cb9 ("scsi: sd: Fix TCG OPAL unlock on system resume")
incorrectly handles failures of scsi_resume_device() in
ata_scsi_dev_rescan(), leading to a double call to
spin_unlock_irqrestore() to unlock a device port. Fix this by redefining
the goto labels used in case of errors and only unlock the port
scsi_scan_mutex when scsi_resume_device() fails.
Bug found with the Smatch static checker warning:
drivers/ata/libata-scsi.c:4774 ata_scsi_dev_rescan()
error: double unlocked 'ap->lock' (orig line 4757)
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 0c76106cb9 ("scsi: sd: Fix TCG OPAL unlock on system resume")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
KVM/arm64 to miss dirty pages due to stale TLB entries.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Fix the TLBI RANGE operand calculation causing live migration under
KVM/arm64 to miss dirty pages due to stale TLB entries"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: tlb: Fix TLBI RANGE operand
The device tree changes this time are all for NXP i.MX platforms, addressing
issues with clocks and regulators on i.MX7 and i.MX8.
The old OMAP2 based Nokia N8x0 tablet get a couple of code fixes for
regressions that came in.
The ARM SCMI and FF-A firmware interfaces get a couple of minor
bug fixes.
A regression fix for RISC-V cache management addresses a problem with
probe order on Sifive cores.
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Merge tag 'soc-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"The device tree changes this time are all for NXP i.MX platforms,
addressing issues with clocks and regulators on i.MX7 and i.MX8.
The old OMAP2 based Nokia N8x0 tablet get a couple of code fixes for
regressions that came in.
The ARM SCMI and FF-A firmware interfaces get a couple of minor bug
fixes.
A regression fix for RISC-V cache management addresses a problem with
probe order on Sifive cores"
* tag 'soc-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (23 commits)
MAINTAINERS: Change Krzysztof Kozlowski's email address
arm64: dts: imx8qm-ss-dma: fix can lpcg indices
arm64: dts: imx8-ss-dma: fix can lpcg indices
arm64: dts: imx8-ss-dma: fix adc lpcg indices
arm64: dts: imx8-ss-dma: fix pwm lpcg indices
arm64: dts: imx8-ss-dma: fix spi lpcg indices
arm64: dts: imx8-ss-conn: fix usb lpcg indices
arm64: dts: imx8-ss-lsio: fix pwm lpcg indices
ARM: dts: imx7s-warp: Pass OV2680 link-frequencies
ARM: dts: imx7-mba7: Use 'no-mmc' property
arm64: dts: imx8-ss-conn: fix usdhc wrong lpcg clock order
arm64: dts: freescale: imx8mp-venice-gw73xx-2x: fix USB vbus regulator
arm64: dts: freescale: imx8mp-venice-gw72xx-2x: fix USB vbus regulator
cache: sifive_ccache: Partially convert to a platform driver
firmware: arm_scmi: Make raw debugfs entries non-seekable
firmware: arm_scmi: Fix wrong fastchannel initialization
firmware: arm_ffa: Fix the partition ID check in ffa_notification_info_get()
ARM: OMAP2+: fix USB regression on Nokia N8x0
mmc: omap: restore original power up/down steps
mmc: omap: fix deferred probe
...
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Merge tag 'pci-v6.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Revert a quirk that prevented Secondary Bus Reset for LSI / Agere
FW643.
We thought the device was broken, but the reset does work correctly
on other platforms, and the reset avoids leaking data out of VMs
(Bjorn Helgaas)
- Update MAINTAINERS to reflect that Gustavo Pimentel is no longer
reachable (Manivannan Sadhasivam)
* tag 'pci-v6.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
Revert "PCI: Mark LSI FW643 to avoid bus reset"
MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer
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Merge tag 'block-6.9-20240412' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- MD pull request via Song:
- UAF fix (Yu)
- Avoid out-of-bounds shift in blk-iocost (Rik)
- Fix for q->blkg_list corruption (Ming)
- Relax virt boundary mask/size segment checking (Ming)
* tag 'block-6.9-20240412' of git://git.kernel.dk/linux:
block: fix that blk_time_get_ns() doesn't update time after schedule
block: allow device to have both virt_boundary_mask and max segment size
block: fix q->blkg_list corruption during disk rebind
blk-iocost: avoid out of bounds shift
raid1: fix use-after-free for original bio in raid1_write_request()
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Merge tag 'io_uring-6.9-20240412' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix for sigmask restoring while waiting for events (Alexey)
- Typo fix in comment (Haiyue)
- Fix for a msg_control retstore on SEND_ZC retries (Pavel)
* tag 'io_uring-6.9-20240412' of git://git.kernel.dk/linux:
io-uring: correct typo in comment for IOU_F_TWQ_LAZY_WAKE
io_uring/net: restore msg_control on sendzc retry
io_uring: Fix io_cqring_wait() not restoring sigmask on get_timespec64() failure
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Merge tag 'ceph-for-6.9-rc4' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Two CephFS fixes marked for stable and a MAINTAINERS update"
* tag 'ceph-for-6.9-rc4' of https://github.com/ceph/ceph-client:
MAINTAINERS: remove myself as a Reviewer for Ceph
ceph: switch to use cap_delay_lock for the unlink delay list
ceph: redirty page before returning AOP_WRITEPAGE_ACTIVATE
Commit d96c36004e ("tracing: Fix FTRACE_RECORD_RECURSION_SIZE Kconfig
entry") removed a hidden tab because it apparently showed breakage in
some third-party kernel config parsing tool.
It wasn't clear what tool it was, but let's make sure it gets fixed.
Because if you can't parse tabs as whitespace, you should not be parsing
the kernel Kconfig files.
In fact, let's make such breakage more obvious than some esoteric ftrace
record size option. If you can't parse tabs, you can't have page sizes.
Yes, tab-vs-space confusion is sadly a traditional Unix thing, and
'make' is famous for being broken in this regard. But no, that does not
mean that it's ok.
I'd add more random tabs to our Kconfig files, but I don't want to make
things uglier than necessary. But it *might* bbe necessary if it turns
out we see more of this kind of silly tooling.
Fixes: d96c36004e ("tracing: Fix FTRACE_RECORD_RECURSION_SIZE Kconfig entry")
Link: https://lore.kernel.org/lkml/CAHk-=wj-hLLN_t_m5OL4dXLaxvXKy_axuoJYXif7iczbfgAevQ@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix the buffer_percent accounting as it is dependent on three variables:
1) pages_read - number of subbuffers read
2) pages_lost - number of subbuffers lost due to overwrite
3) pages_touched - number of pages that a writer entered
These three counters only increment, and to know how many active pages
there are on the buffer at any given time, the pages_read and
pages_lost are subtracted from pages_touched. But the pages touched
was incremented whenever any writer went to the next subbuffer even
if it wasn't the only one, so it was incremented more than it should
be causing the counter for how many subbuffers currently have content
incorrect, which caused the buffer_percent that holds waiters until
the ring buffer is filled to a given percentage to wake up early.
- Fix warning of unused functions when PERF_EVENTS is not configured in
- Replace bad tab with space in Kconfig for FTRACE_RECORD_RECURSION_SIZE
- Fix to some kerneldoc function comments in eventfs code.
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Merge tag 'trace-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix the buffer_percent accounting as it is dependent on three
variables:
1) pages_read - number of subbuffers read
2) pages_lost - number of subbuffers lost due to overwrite
3) pages_touched - number of pages that a writer entered
These three counters only increment, and to know how many active
pages there are on the buffer at any given time, the pages_read and
pages_lost are subtracted from pages_touched.
But the pages touched was incremented whenever any writer went to the
next subbuffer even if it wasn't the only one, so it was incremented
more than it should be causing the counter for how many subbuffers
currently have content incorrect, which caused the buffer_percent
that holds waiters until the ring buffer is filled to a given
percentage to wake up early.
- Fix warning of unused functions when PERF_EVENTS is not configured in
- Replace bad tab with space in Kconfig for FTRACE_RECORD_RECURSION_SIZE
- Fix to some kerneldoc function comments in eventfs code.
* tag 'trace-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Only update pages_touched when a new page is touched
tracing: hide unused ftrace_event_id_fops
tracing: Fix FTRACE_RECORD_RECURSION_SIZE Kconfig entry
eventfs: Fix kernel-doc comments to functions
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Merge tag 'mips-fixes_6.9_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fix from Thomas Bogendoerfer:
"Fix for syscall_get_nr() to make it work even if tracing is disabled"
* tag 'mips-fixes_6.9_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: scall: Save thread_info.syscall unconditionally on entry
client:
- Protect connector modes with mode_config mutex
ast:
- Fix soft lockup
host1x:
- Do not setup DMA for virtual addresses
ivpu:
- Fix deadlock in context_xa
- PCI fixes
- Fixes to error handling
nouveau:
- gsp: Fix OOB access
- Fix casting
panfrost:
- Fix error path in MMU code
qxl:
- Revert "drm/qxl: simplify qxl_fence_wait"
vmwgfx:
- Enable DMA for SEV mappings
i915:
- Couple CDCLK programming fixes
- HDCP related fix
- 4 Bigjoiner related fixes
- Fix for a circular locking around GuC on reset+wedged case
xe:
- Fix double display mutex initializations
- Fix u32 -> u64 implicit conversions
- Fix RING_CONTEXT_CONTROL not marked as masked
msm:
- DP refcount leak fix on disconnect
- Add missing newlines to prints in msm_fb and msm_kms
- fix dpu debugfs entry permissions
- Fix the interface table for the catalog of X1E80100
- fix irq message printing
- Bindings fix to add DP node as child of mdss for mdss node
- Minor typo fix in DP driver API which handles port status change
- fix CHRASHDUMP_READ()
- fix HHB (highest bank bit) for a619 to fix UBWC corruption
amdgpu:
- GPU reset fixes
- Fix some confusing logging
- UMSCH fix
- Aborted suspend fix
- DCN 3.5 fixes
- S4 fix
- MES logging fixes
- SMU 14 fixes
- SDMA 4.4.2 fix
- KASAN fix
- SMU 13.0.10 fix
- VCN partition fix
- GFX11 fixes
- DWB fixes
- Plane handling fix
- FAMS fix
- DCN 3.1.6 fix
- VSC SDP fixes
- OLED panel fix
- GFX 11.5 fix
amdkfd:
- GPU reset fixes
- fix ioctl integer overflow
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Merge tag 'drm-fixes-2024-04-12' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Looks like everyone woke up after holidays, this weeks pull has a
bunch of stuff all over, 2 weeks worth of amdgpu is a lot of it, then
i915/xe have a few, a bunch of msm fixes, then some scattered driver
fixes.
I expect things will settle down for rc5.
client:
- Protect connector modes with mode_config mutex
ast:
- Fix soft lockup
host1x:
- Do not setup DMA for virtual addresses
ivpu:
- Fix deadlock in context_xa
- PCI fixes
- Fixes to error handling
nouveau:
- gsp: Fix OOB access
- Fix casting
panfrost:
- Fix error path in MMU code
qxl:
- Revert "drm/qxl: simplify qxl_fence_wait"
vmwgfx:
- Enable DMA for SEV mappings
i915:
- Couple CDCLK programming fixes
- HDCP related fix
- 4 Bigjoiner related fixes
- Fix for a circular locking around GuC on reset+wedged case
xe:
- Fix double display mutex initializations
- Fix u32 -> u64 implicit conversions
- Fix RING_CONTEXT_CONTROL not marked as masked
msm:
- DP refcount leak fix on disconnect
- Add missing newlines to prints in msm_fb and msm_kms
- fix dpu debugfs entry permissions
- Fix the interface table for the catalog of X1E80100
- fix irq message printing
- Bindings fix to add DP node as child of mdss for mdss node
- Minor typo fix in DP driver API which handles port status change
- fix CHRASHDUMP_READ()
- fix HHB (highest bank bit) for a619 to fix UBWC corruption
amdgpu:
- GPU reset fixes
- Fix some confusing logging
- UMSCH fix
- Aborted suspend fix
- DCN 3.5 fixes
- S4 fix
- MES logging fixes
- SMU 14 fixes
- SDMA 4.4.2 fix
- KASAN fix
- SMU 13.0.10 fix
- VCN partition fix
- GFX11 fixes
- DWB fixes
- Plane handling fix
- FAMS fix
- DCN 3.1.6 fix
- VSC SDP fixes
- OLED panel fix
- GFX 11.5 fix
amdkfd:
- GPU reset fixes
- fix ioctl integer overflow"
* tag 'drm-fixes-2024-04-12' of https://gitlab.freedesktop.org/drm/kernel: (65 commits)
amdkfd: use calloc instead of kzalloc to avoid integer overflow
drm/xe: Label RING_CONTEXT_CONTROL as masked
drm/xe/xe_migrate: Cast to output precision before multiplying operands
drm/xe/hwmon: Cast result to output precision on left shift of operand
drm/xe/display: Fix double mutex initialization
drm/amdgpu: differentiate external rev id for gfx 11.5.0
drm/amd/display: Adjust dprefclk by down spread percentage.
drm/amd/display: Set VSC SDP Colorimetry same way for MST and SST
drm/amd/display: Program VSC SDP colorimetry for all DP sinks >= 1.4
drm/amd/display: fix disable otg wa logic in DCN316
drm/amd/display: Do not recursively call manual trigger programming
drm/amd/display: always reset ODM mode in context when adding first plane
drm/amdgpu: fix incorrect number of active RBs for gfx11
drm/amd/display: Return max resolution supported by DWB
amd/amdkfd: sync all devices to wait all processes being evicted
drm/amdgpu: clear set_q_mode_offs when VM changed
drm/amdgpu: Fix VCN allocation in CPX partition
drm/amd/pm: fix the high voltage issue after unload
drm/amd/display: Skip on writeback when it's not applicable
drm/amdgpu: implement IRQ_STATE_ENABLE for SDMA v4.4.2
...
While monitoring the throttle time of IO from iocost, it's found that
such time is always zero after the io_schedule() from ioc_rqos_throttle,
for example, with the following debug patch:
+ printk("%s-%d: %s enter %llu\n", current->comm, current->pid, __func__, blk_time_get_ns());
while (true) {
set_current_state(TASK_UNINTERRUPTIBLE);
if (wait.committed)
break;
io_schedule();
}
+ printk("%s-%d: %s exit %llu\n", current->comm, current->pid, __func__, blk_time_get_ns());
It can be observerd that blk_time_get_ns() always return the same time:
[ 1068.096579] fio-1268: ioc_rqos_throttle enter 1067901962288
[ 1068.272587] fio-1268: ioc_rqos_throttle exit 1067901962288
[ 1068.274389] fio-1268: ioc_rqos_throttle enter 1067901962288
[ 1068.472690] fio-1268: ioc_rqos_throttle exit 1067901962288
[ 1068.474485] fio-1268: ioc_rqos_throttle enter 1067901962288
[ 1068.672656] fio-1268: ioc_rqos_throttle exit 1067901962288
[ 1068.674451] fio-1268: ioc_rqos_throttle enter 1067901962288
[ 1068.872655] fio-1268: ioc_rqos_throttle exit 1067901962288
And I think the root cause is that 'PF_BLOCK_TS' is always cleared
by blk_flush_plug() before scheduel(), hence blk_plug_invalidate_ts()
will never be called:
blk_time_get_ns
plug->cur_ktime = ktime_get_ns();
current->flags |= PF_BLOCK_TS;
io_schedule:
io_schedule_prepare
blk_flush_plug
__blk_flush_plug
/* the flag is cleared, while time is not */
current->flags &= ~PF_BLOCK_TS;
schedule
sched_update_worker
/* the flag is not set, hence plug->cur_ktime is not cleared */
if (tsk->flags & PF_BLOCK_TS)
blk_plug_invalidate_ts()
blk_time_get_ns
/* got the time stashed before schedule */
return plug->cur_ktime;
Fix the problem by clearing cached time in __blk_flush_plug().
Fixes: 06b23f92af ("block: update cached timestamp post schedule/preemption")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240411032349.3051233-2-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Use consistent log severity (pr_warn) to log all messages in SNP
enable path.
Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20240410101643.32309-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Commit 1a75cc710b ("iommu/vt-d: Use rbtree to track iommu probed
devices") adds all devices probed by the iommu driver in a rbtree
indexed by the source ID of each device. It assumes that each device
has a unique source ID. This assumption is incorrect and the VT-d
spec doesn't state this requirement either.
The reason for using a rbtree to track devices is to look up the device
with PCI bus and devfunc in the paths of handling ATS invalidation time
out error and the PRI I/O page faults. Both are PCI ATS feature related.
Only track the devices that have PCI ATS capabilities in the rbtree to
avoid unnecessary WARN_ON in the iommu probe path. Otherwise, on some
platforms below kernel splat will be displayed and the iommu probe results
in failure.
WARNING: CPU: 3 PID: 166 at drivers/iommu/intel/iommu.c:158 intel_iommu_probe_device+0x319/0xd90
Call Trace:
<TASK>
? __warn+0x7e/0x180
? intel_iommu_probe_device+0x319/0xd90
? report_bug+0x1f8/0x200
? handle_bug+0x3c/0x70
? exc_invalid_op+0x18/0x70
? asm_exc_invalid_op+0x1a/0x20
? intel_iommu_probe_device+0x319/0xd90
? debug_mutex_init+0x37/0x50
__iommu_probe_device+0xf2/0x4f0
iommu_probe_device+0x22/0x70
iommu_bus_notifier+0x1e/0x40
notifier_call_chain+0x46/0x150
blocking_notifier_call_chain+0x42/0x60
bus_notify+0x2f/0x50
device_add+0x5ed/0x7e0
platform_device_add+0xf5/0x240
mfd_add_devices+0x3f9/0x500
? preempt_count_add+0x4c/0xa0
? up_write+0xa2/0x1b0
? __debugfs_create_file+0xe3/0x150
intel_lpss_probe+0x49f/0x5b0
? pci_conf1_write+0xa3/0xf0
intel_lpss_pci_probe+0xcf/0x110 [intel_lpss_pci]
pci_device_probe+0x95/0x120
really_probe+0xd9/0x370
? __pfx___driver_attach+0x10/0x10
__driver_probe_device+0x73/0x150
driver_probe_device+0x19/0xa0
__driver_attach+0xb6/0x180
? __pfx___driver_attach+0x10/0x10
bus_for_each_dev+0x77/0xd0
bus_add_driver+0x114/0x210
driver_register+0x5b/0x110
? __pfx_intel_lpss_pci_driver_init+0x10/0x10 [intel_lpss_pci]
do_one_initcall+0x57/0x2b0
? kmalloc_trace+0x21e/0x280
? do_init_module+0x1e/0x210
do_init_module+0x5f/0x210
load_module+0x1d37/0x1fc0
? init_module_from_file+0x86/0xd0
init_module_from_file+0x86/0xd0
idempotent_init_module+0x17c/0x230
__x64_sys_finit_module+0x56/0xb0
do_syscall_64+0x6e/0x140
entry_SYSCALL_64_after_hwframe+0x71/0x79
Fixes: 1a75cc710b ("iommu/vt-d: Use rbtree to track iommu probed devices")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10689
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20240407011429.136282-1-baolu.lu@linux.intel.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The page request queue is per IOMMU, its allocation should be made
NUMA-aware for performance reasons.
Fixes: a222a7f0bb ("iommu/vt-d: Implement page request handling")
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240403214007.985600-1-jacob.jun.pan@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240410164109.233308-1-krzk@kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
DTE[Mode]=0 is not supported when SNP is enabled in the host. That means
to support SNP, IOMMU must be configured with V1 page table (See IOMMU
spec [1] for the details). If user passes kernel command line to configure
IOMMU domains with v2 page table (amd_iommu=pgtbl_v2) then disable SNP
as the user asked by not forcing the page table to v1.
[1] https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/specifications/48882_IOMMU.pdf
Cc: Ashish Kalra <ashish.kalra@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20240410085702.31869-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
LOCKDEP detector reported below warning:
----------------------------------------
[ 23.796949] ========================================================
[ 23.796950] WARNING: possible irq lock inversion dependency detected
[ 23.796952] 6.8.0fix+ #811 Not tainted
[ 23.796954] --------------------------------------------------------
[ 23.796954] kworker/0:1/8 just changed the state of lock:
[ 23.796956] ff365325e084a9b8 (&domain->lock){..-.}-{3:3}, at: amd_iommu_flush_iotlb_all+0x1f/0x50
[ 23.796969] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 23.796970] (pd_bitmap_lock){+.+.}-{3:3}
[ 23.796972]
and interrupts could create inverse lock ordering between them.
[ 23.796973]
other info that might help us debug this:
[ 23.796974] Chain exists of:
&domain->lock --> &dev_data->lock --> pd_bitmap_lock
[ 23.796980] Possible interrupt unsafe locking scenario:
[ 23.796981] CPU0 CPU1
[ 23.796982] ---- ----
[ 23.796983] lock(pd_bitmap_lock);
[ 23.796985] local_irq_disable();
[ 23.796985] lock(&domain->lock);
[ 23.796988] lock(&dev_data->lock);
[ 23.796990] <Interrupt>
[ 23.796991] lock(&domain->lock);
Fix this issue by disabling interrupt when acquiring pd_bitmap_lock.
Note that this is temporary fix. We have a plan to replace custom bitmap
allocator with IDA allocator.
Fixes: 87a6f1f22c ("iommu/amd: Introduce per-device domain ID to fix potential TLB aliasing issue")
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20240404102717.6705-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Fixes for v6.9
Display:
- Fixes for PM refcount leak when DP goes to disconnected state and
also when link training fails. This is also one of the issues found
with the pm runtime series
- Add missing newlines to prints in msm_fb and msm_kms
- Change permissions of some dpu debugfs entries which write to const
data from catalog to read-only to avoid protection faults
- Fix the interface table for the catalog of X1E80100. This is an
important fix to bringup DP for X1E80100.
- Logging fix to print the callback symbol in the invalid IRQ message
case rather than printing when its known to be NULL.
- Bindings fix to add DP node as child of mdss for mdss node
- Minor typo fix in DP driver API which handles port status change
GPU:
- fix CHRASHDUMP_READ()
- fix HHB (highest bank bit) for a619 to fix UBWC corruption
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvFwRUcHGWva7oDeydq1PTiZMduuykCD2MWaFrT4iMGZA@mail.gmail.com
- Fix index of Clear Event Record handles in cxl_clear_event_record().
- Fix use before init of map->reg_type in cxl_decode_regblock().
- Fix initialization of mbox_cmd.size_out in cxl_mem_get_records_log().
- Series fixing CXL path access_coordinate computation.
- Remove unneded check of iter in loop.
- Fix of retrieving of access_coordinate in PCI topology walk.
- Fix of incorrect region access_coordinate data calculation.
- Consolidate of access_coordinates attached to downstream port
context.
- Add check to validate access_coordinate validity to prevent
incorrect data being exposed via sysfs.
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Merge tag 'cxl-fixes-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Dave Jiang:
- Fix index of Clear Event Record handles in cxl_clear_event_record()
- Fix use before init of map->reg_type in cxl_decode_regblock()
- Fix initialization of mbox_cmd.size_out in cxl_mem_get_records_log()
- Fix CXL path access_coordinate computation:
- Remove unneded check of iter in loop
- Fix of retrieving of access_coordinate in PCI topology walk
- Fix of incorrect region access_coordinate data calculation
- Consolidate of access_coordinates attached to downstream port
context
- Add check to validate access_coordinate validity to prevent
incorrect data being exposed via sysfs
* tag 'cxl-fixes-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl: Add checks to access_coordinate calculation to fail missing data
cxl: Consolidate dport access_coordinate ->hb_coord and ->sw_coord into ->coord
cxl: Fix incorrect region perf data calculation
cxl: Fix retrieving of access_coordinates in PCIe path
cxl: Remove checking of iter in cxl_endpoint_get_perf_coordinates()
cxl/core: Fix initialization of mbox_cmd.size_out in get event
cxl/core/regs: Fix usage of map->reg_type in cxl_decode_regblock() before assigned
cxl/mem: Fix for the index of Clear Event Record Handle
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Merge tag 'hyperv-fixes-signed-20240411' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Some cosmetic changes (Erni Sri Satya Vennela, Li Zhijian)
- Introduce hv_numa_node_to_pxm_info() (Nuno Das Neves)
- Fix KVP daemon to handle IPv4 and IPv6 combination for keyfile format
(Shradha Gupta)
- Avoid freeing decrypted memory in a confidential VM (Rick Edgecombe
and Michael Kelley)
* tag 'hyperv-fixes-signed-20240411' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
uio_hv_generic: Don't free decrypted memory
hv_netvsc: Don't free decrypted memory
Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
hv/hv_kvp_daemon: Handle IPv4 and Ipv6 combination for keyfile format
hv: vmbus: Convert sprintf() family to sysfs_emit() family
mshyperv: Introduce hv_numa_node_to_pxm_info()
x86/hyperv: Cosmetic changes for hv_apic.c
The "buffer_percent" logic that is used by the ring buffer splice code to
only wake up the tasks when there's no data after the buffer is filled to
the percentage of the "buffer_percent" file is dependent on three
variables that determine the amount of data that is in the ring buffer:
1) pages_read - incremented whenever a new sub-buffer is consumed
2) pages_lost - incremented every time a writer overwrites a sub-buffer
3) pages_touched - incremented when a write goes to a new sub-buffer
The percentage is the calculation of:
(pages_touched - (pages_lost + pages_read)) / nr_pages
Basically, the amount of data is the total number of sub-bufs that have been
touched, minus the number of sub-bufs lost and sub-bufs consumed. This is
divided by the total count to give the buffer percentage. When the
percentage is greater than the value in the "buffer_percent" file, it
wakes up splice readers waiting for that amount.
It was observed that over time, the amount read from the splice was
constantly decreasing the longer the trace was running. That is, if one
asked for 60%, it would read over 60% when it first starts tracing, but
then it would be woken up at under 60% and would slowly decrease the
amount of data read after being woken up, where the amount becomes much
less than the buffer percent.
This was due to an accounting of the pages_touched incrementation. This
value is incremented whenever a writer transfers to a new sub-buffer. But
the place where it was incremented was incorrect. If a writer overflowed
the current sub-buffer it would go to the next one. If it gets preempted
by an interrupt at that time, and the interrupt performs a trace, it too
will end up going to the next sub-buffer. But only one should increment
the counter. Unfortunately, that was not the case.
Change the cmpxchg() that does the real switch of the tail-page into a
try_cmpxchg(), and on success, perform the increment of pages_touched. This
will only increment the counter once for when the writer moves to a new
sub-buffer, and not when there's a race and is incremented for when a
writer and its preempting writer both move to the same new sub-buffer.
Link: https://lore.kernel.org/linux-trace-kernel/20240409151309.0d0e5056@gandalf.local.home
Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: 2c2b0a78b3 ("ring-buffer: Add percentage of ring buffer full to wake up reader")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
There are various use cases that are becoming more common in which password
changes are scheduled on a server(s) periodically but the clients connected
to this server need to stay connected (even in the face of brief network
reconnects) due to mounts which can not be easily unmounted and mounted at
will, and servers that do password rotation do not always have the ability
to tell the clients exactly when to the new password will be effective,
so add support for an alt password ("password2=") on mount (and also
remount) so that we can anticipate the upcoming change to the server
without risking breaking existing mounts.
An alternative would have been to use the kernel keyring for this but the
processes doing the reconnect do not have access to the keyring but do
have access to the ses structure.
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
We were decrementing the count of open files on server twice
for the case where we were closing cached directories.
Fixes: 8e843bf38f ("cifs: return a single-use cfid if we did not get a lease")
Cc: stable@vger.kernel.org
Acked-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
It has been a couple of years since I stepped down as CephFS maintainer.
I'm not involved in any meaningful way with the project these days, so
while I'm happy to help review the occasional patch, I don't need to be
cc'ed on all of them.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
The same list item will be used in both cap_delay_list and
cap_unlink_delay_list, so it's buggy to use two different locks
to protect them.
Cc: stable@vger.kernel.org
Fixes: dbc347ef7f ("ceph: add ceph_cap_unlink_work to fire check_caps() immediately")
Link: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/AODC76VXRAMXKLFDCTK4TKFDDPWUSCN5
Reported-by: Marc Ruhmann <ruhmann@luis.uni-hannover.de>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Marc Ruhmann <ruhmann@luis.uni-hannover.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
- Modify the ACPI device enumeration code to avoid counting
dependencies that have been met already as unmet (Hans de Goede).
- Make _UID matching take the integer value of 0 into account as
appropriate (Raag Jadav).
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Merge tag 'acpi-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix the handling of dependencies between devices in the ACPI
device enumeration code and address a _UID matching regression from
the 6.8 development cycle.
Specifics:
- Modify the ACPI device enumeration code to avoid counting
dependencies that have been met already as unmet (Hans de Goede)
- Make _UID matching take the integer value of 0 into account as
appropriate (Raag Jadav)"
* tag 'acpi-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: allow _UID matching for integer zero
ACPI: scan: Do not increase dep_unmet for already met dependencies
Fix the suspend-to-idle core code to guarantee that timers queued on
CPUs other than the one that has first left the idle state, which should
expire directly after resume, will be handled (Anna-Maria Behnsen).
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Merge tag 'pm-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix the suspend-to-idle core code to guarantee that timers queued on
CPUs other than the one that has first left the idle state, which
should expire directly after resume, will be handled (Anna-Maria
Behnsen)"
* tag 'pm-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: s2idle: Make sure CPUs will wakeup directly on resume
Current release - new code bugs:
- netfilter: complete validation of user input
- mlx5: disallow SRIOV switchdev mode when in multi-PF netdev
Previous releases - regressions:
- core: fix u64_stats_init() for lockdep when used repeatedly in one file
- ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
- bluetooth: fix memory leak in hci_req_sync_complete()
- batman-adv: avoid infinite loop trying to resize local TT
- drv: geneve: fix header validation in geneve[6]_xmit_skb
- drv: bnxt_en: fix possible memory leak in bnxt_rdma_aux_device_init()
- drv: mlx5: offset comp irq index in name by one
- drv: ena: avoid double-free clearing stale tx_info->xdpf value
- drv: pds_core: fix pdsc_check_pci_health deadlock
Previous releases - always broken:
- xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
- bluetooth: fix setsockopt not validating user input
- af_unix: clear stale u->oob_skb.
- nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies
- drv: virtio_net: fix guest hangup on invalid RSS update
- drv: mlx5e: Fix mlx5e_priv_init() cleanup flow
- dsa: mt7530: trap link-local frames regardless of ST Port State
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Current release - new code bugs:
- netfilter: complete validation of user input
- mlx5: disallow SRIOV switchdev mode when in multi-PF netdev
Previous releases - regressions:
- core: fix u64_stats_init() for lockdep when used repeatedly in one
file
- ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
- bluetooth: fix memory leak in hci_req_sync_complete()
- batman-adv: avoid infinite loop trying to resize local TT
- drv: geneve: fix header validation in geneve[6]_xmit_skb
- drv: bnxt_en: fix possible memory leak in
bnxt_rdma_aux_device_init()
- drv: mlx5: offset comp irq index in name by one
- drv: ena: avoid double-free clearing stale tx_info->xdpf value
- drv: pds_core: fix pdsc_check_pci_health deadlock
Previous releases - always broken:
- xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
- bluetooth: fix setsockopt not validating user input
- af_unix: clear stale u->oob_skb.
- nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies
- drv: virtio_net: fix guest hangup on invalid RSS update
- drv: mlx5e: Fix mlx5e_priv_init() cleanup flow
- dsa: mt7530: trap link-local frames regardless of ST Port State"
* tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits)
net: ena: Set tx_info->xdpf value to NULL
net: ena: Fix incorrect descriptor free behavior
net: ena: Wrong missing IO completions check order
net: ena: Fix potential sign extension issue
af_unix: Fix garbage collector racing against connect()
net: dsa: mt7530: trap link-local frames regardless of ST Port State
Revert "s390/ism: fix receive message buffer allocation"
net: sparx5: fix wrong config being used when reconfiguring PCS
net/mlx5: fix possible stack overflows
net/mlx5: Disallow SRIOV switchdev mode when in multi-PF netdev
net/mlx5e: RSS, Block XOR hash with over 128 channels
net/mlx5e: Do not produce metadata freelist entries in Tx port ts WQE xmit
net/mlx5e: HTB, Fix inconsistencies with QoS SQs number
net/mlx5e: Fix mlx5e_priv_init() cleanup flow
net/mlx5e: RSS, Block changing channels number when RXFH is configured
net/mlx5: Correctly compare pkt reformat ids
net/mlx5: Properly link new fs rules into the tree
net/mlx5: offset comp irq index in name by one
net/mlx5: Register devlink first under devlink lock
net/mlx5: E-switch, store eswitch pointer before registering devlink_param
...
The most important fix is the sg one because the regression it fixes
(spurious warning and use after final put) is already backported to
stable. The next biggest impact is the target fix for wrong
credentials used to load a module because it's affecting new kernels
installed on selinux based distributions. The other three fixes are
an obvious off by one and SATA protocol issues.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The most important fix is the sg one because the regression it fixes
(spurious warning and use after final put) is already backported to
stable.
The next biggest impact is the target fix for wrong credentials used
to load a module because it's affecting new kernels installed on
selinux based distributions.
The other three fixes are an obvious off by one and SATA protocol
issues"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix off by one in qla_edif_app_getstats()
scsi: hisi_sas: Modify the deadline for ata_wait_after_reset()
scsi: hisi_sas: Handle the NCQ error returned by D2H frame
scsi: target: Fix SELinux error when systemd-modules loads the target module
scsi: sg: Avoid race in error handling & drop bogus warn
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Merge tag 'loongarch-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
- make {virt, phys, page, pfn} translation work with KFENCE for
LoongArch (otherwise NVMe and virtio-blk cannot work with KFENCE
enabled)
- update dts files for Loongson-2K series to make devices work
correctly
- fix a build error
* tag 'loongarch-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: Include linux/sizes.h in addrspace.h to prevent build errors
LoongArch: Update dts for Loongson-2K2000 to support GMAC/GNET
LoongArch: Update dts for Loongson-2K2000 to support PCI-MSI
LoongArch: Update dts for Loongson-2K2000 to support ISA/LPC
LoongArch: Update dts for Loongson-2K1000 to support ISA/LPC
LoongArch: Make virt_addr_valid()/__virt_addr_valid() work with KFENCE
LoongArch: Make {virt, phys, page, pfn} translation work with KFENCE
mm: Move lowmem_page_address() a little later
Notable user impacting bugs
- On multi device filesystems, recovery was looping in
btree_trans_too_many_iters(). This checks if a transaction has touched
too many btree paths (because of iteration over many keys), and isuses
a restart to drop unneeded paths. But it's now possible for some paths
to exceed the previous limit without iteration in the interior btree
update path, since the transaction commit will do alloc updates for
every old and new btree node, and during journal replay we don't use
the btree write buffer for locking reasons and thus those updates use
btree paths when they wouldn't normally.
- Fix a corner case in rebalance when moving extents on a durability=0
device. This wouldn't be hit when a device was formatted with
durability=0 since in that case we'll only use it as a write through
cache (only cached extents will live on it), but durability can now be
changed on an existing device.
- bch2_get_acl() could rarely forget to handle a transaction restart;
this manifested as the occasional missing acl that came back after
dropping caches.
- Fix a major performance regression on high iops multithreaded write
workloads (only since 6.9-rc1); a previous fix for a deadlock in the
interior btree update path to check the journal watermark introduced a
dependency on the state of btree write buffer flushing that we didn't
want.
- Assorted other repair paths and recovery fixes.
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Merge tag 'bcachefs-2024-04-10' of https://evilpiepirate.org/git/bcachefs
Pull more bcachefs fixes from Kent Overstreet:
"Notable user impacting bugs
- On multi device filesystems, recovery was looping in
btree_trans_too_many_iters(). This checks if a transaction has
touched too many btree paths (because of iteration over many keys),
and isuses a restart to drop unneeded paths.
But it's now possible for some paths to exceed the previous limit
without iteration in the interior btree update path, since the
transaction commit will do alloc updates for every old and new
btree node, and during journal replay we don't use the btree write
buffer for locking reasons and thus those updates use btree paths
when they wouldn't normally.
- Fix a corner case in rebalance when moving extents on a
durability=0 device. This wouldn't be hit when a device was
formatted with durability=0 since in that case we'll only use it as
a write through cache (only cached extents will live on it), but
durability can now be changed on an existing device.
- bch2_get_acl() could rarely forget to handle a transaction restart;
this manifested as the occasional missing acl that came back after
dropping caches.
- Fix a major performance regression on high iops multithreaded write
workloads (only since 6.9-rc1); a previous fix for a deadlock in
the interior btree update path to check the journal watermark
introduced a dependency on the state of btree write buffer flushing
that we didn't want.
- Assorted other repair paths and recovery fixes"
* tag 'bcachefs-2024-04-10' of https://evilpiepirate.org/git/bcachefs: (25 commits)
bcachefs: Fix __bch2_btree_and_journal_iter_init_node_iter()
bcachefs: Kill read lock dropping in bch2_btree_node_lock_write_nofail()
bcachefs: Fix a race in btree_update_nodes_written()
bcachefs: btree_node_scan: Respect member.data_allowed
bcachefs: Don't scan for btree nodes when we can reconstruct
bcachefs: Fix check_topology() when using node scan
bcachefs: fix eytzinger0_find_gt()
bcachefs: fix bch2_get_acl() transaction restart handling
bcachefs: fix the count of nr_freed_pcpu after changing bc->freed_nonpcpu list
bcachefs: Fix gap buffer bug in bch2_journal_key_insert_take()
bcachefs: Rename struct field swap to prevent macro naming collision
MAINTAINERS: Add entry for bcachefs documentation
Documentation: filesystems: Add bcachefs toctree
bcachefs: JOURNAL_SPACE_LOW
bcachefs: Disable errors=panic for BCH_IOCTL_FSCK_OFFLINE
bcachefs: Fix BCH_IOCTL_FSCK_OFFLINE for encrypted filesystems
bcachefs: fix rand_delete unit test
bcachefs: fix ! vs ~ typo in __clear_bit_le64()
bcachefs: Fix rebalance from durability=0 device
bcachefs: Print shutdown journal sequence number
...
Linus Torvalds