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When port mirroring is added to a port, the bit position of the source
port, needs to be written to the register ANA_AC_PROBE_PORT_CFG. This
register is replicated for n_ports > 32, and therefore we need to derive
the correct register from the port number.
Before this patch, we wrongly calculate the register from portno /
BITS_PER_BYTE, where the divisor ought to be 32, causing any port >=8 to
be written to the wrong register. We fix this, by using do_div(), where
the dividend is the register, the remainder is the bit position and the
divisor is now 32.
Fixes: 4e50d72b3b95 ("net: sparx5: add port mirroring implementation")
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241009-mirroring-fix-v1-1-9ec962301989@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix clock handle leak in probe() error path in gpio-aspeed
- add a dummy register read to ensure the write actually completed
* tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: aspeed: Use devm_clk api to manage clock source
gpio: aspeed: Add the flush write to ensure the write complete.
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Pull NFS client fixes from Anna Schumaker:
"Localio Bugfixes:
- remove duplicated include in localio.c
- fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
- fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
- fix nfsd_file tracepoints to handle NULL rqstp pointers
Other Bugfixes:
- fix program selection loop in svc_process_common
- fix integer overflow in decode_rc_list()
- prevent NULL-pointer dereference in nfs42_complete_copies()
- fix CB_RECALL performance issues when using a large number of
delegations"
* tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: remove revoked delegation from server's delegation list
nfsd/localio: fix nfsd_file tracepoints to handle NULL rqstp
nfs_common: fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
nfs_common: fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
SUNRPC: Fix integer overflow in decode_rc_list()
sunrpc: fix prog selection loop in svc_process_common
nfs: Remove duplicated include in localio.c
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After commit 8d7017fd621d ("blackhole_netdev: use blackhole_netdev to
invalidate dst entries"), blackhole_netdev was introduced to invalidate
dst cache entries on the TX path whenever the cache times out or is
flushed.
When two UDP sockets (sk1 and sk2) send messages to the same destination
simultaneously, they are using the same dst cache. If the dst cache is
invalidated on one path (sk2) while the other (sk1) is still transmitting,
sk1 may try to use the invalid dst entry.
CPU1 CPU2
udp_sendmsg(sk1) udp_sendmsg(sk2)
udp_send_skb()
ip_output()
<--- dst timeout or flushed
dst_dev_put()
ip_finish_output2()
ip_neigh_for_gw()
This results in a scenario where ip_neigh_for_gw() returns -EINVAL because
blackhole_dev lacks an in_dev, which is needed to initialize the neigh in
arp_constructor(). This error is then propagated back to userspace,
breaking the UDP application.
The patch fixes this issue by assigning an in_dev to blackhole_dev for
IPv4, similar to what was done for IPv6 in commit e5f80fcf869a ("ipv6:
give an IPv6 dev to blackhole_netdev"). This ensures that even when the
dst entry is invalidated with blackhole_dev, it will not fail to create
the neigh entry.
As devinet_init() is called ealier than blackhole_netdev_init() in system
booting, it can not assign the in_dev to blackhole_dev in devinet_init().
As Paolo suggested, add a separate late_initcall() in devinet.c to ensure
inet_blackhole_dev_init() is called after blackhole_netdev_init().
Fixes: 8d7017fd621d ("blackhole_netdev: use blackhole_netdev to invalidate dst entries")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/3000792d45ca44e16c785ebe2b092e610e5b3df1.1728499633.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU fix from Neeraj Upadhyay:
"Fix rcuog kthread wakeup invocation from softirq context on a CPU
which has been marked offline.
This can happen when new callbacks are enqueued from a softirq on an
offline CPU before it calls rcutree_report_cpu_dead(). When this
happens on NOCB configuration, the rcuog wake-up is deferred through
an IPI to an online CPU. This is done to avoid call into the scheduler
which can risk arming the RT-bandwidth after hrtimers have been
migrated out and disabled.
However, doing IPI call from softirq is not allowed: Fix this by
forcing deferred rcuog wakeup through the NOCB timer when the CPU is
offline"
* tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
rcu/nocb: Fix rcuog wake-up from offline softirq
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A fix for topology information of Xen PV guests"
* tag 'for-linus-6.12a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: mark boot CPU of PV guest in MSR_IA32_APICBASE
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Masami reported a bug when running function graph tracing then the
function profiler. The following commands would cause a kernel crash:
# cd /sys/kernel/tracing/
# echo function_graph > current_tracer
# echo 1 > function_profile_enabled
In that order. Create a test to test this two to make sure this does not
come back as a regression.
Link: https://lore.kernel.org/172398528350.293426.8347220120333730248.stgit@devnote2
Link: https://lore.kernel.org/all/20241010165235.35122877@gandalf.local.home/
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Adapt the rseq.c/rseq.h code to follow GNU C library changes introduced by:
glibc commit 2e456ccf0c34 ("Linux: Make __rseq_size useful for feature detection (bug 31965)")
Without this fix, rseq selftests for mm_cid fail:
./run_param_test.sh
Default parameters
Running test spinlock
Running compare-twice test spinlock
Running mm_cid test spinlock
Error: cpu id getter unavailable
Fixes: 18c2355838e7 ("selftests/rseq: Implement rseq mm_cid field support")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
CC: Boqun Feng <boqun.feng@gmail.com>
CC: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
CC: Carlos O'Donell <carlos@redhat.com>
CC: Florian Weimer <fweimer@redhat.com>
CC: linux-kselftest@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Pull io_uring fixes from Jens Axboe:
- Explicitly have a mshot_finished condition for IORING_OP_RECV in
multishot mode, similarly to what IORING_OP_RECVMSG has. This doesn't
fix a bug right now, but it makes it harder to actually have a bug
here if a request takes multiple iterations to finish.
- Fix handling of retry of read/write of !FMODE_NOWAIT files. If they
are pollable, that's all we need.
* tag 'io_uring-6.12-20241011' of git://git.kernel.dk/linux:
io_uring/rw: allow pollable non-blocking attempts for !FMODE_NOWAIT
io_uring/rw: fix cflags posting for single issue multishot read
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These address two issues in the TPMI module of the Intel RAPL power
capping driver and one issue in the processor part of the Intel
int340x thermal driver, update a CPU ID list and register definitions
needed for RAPL PL4 support and remove some unused code.
Specifics:
- Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part
of the Intel RAPL power capping driver, make it ignore minor
hardware version mismatches (which only indicate exposing
additional features) and update register definitions in it to
enable PL4 support (Zhang Rui)
- Add Arrow Lake-U to the list of processors supporting PL4 in the
MSR part of the Intel RAPL power capping driver (Sumeet Pawnikar)
- Remove excess pci_disable_device() calls from the processor part of
the int340x thermal driver to address a warning triggered during
module unload and remove unused CPU hotplug code related to RAPL
support from it (Zhang Rui)"
* tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: int340x: processor: Add MMIO RAPL PL4 support
thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support
powercap: intel_rapl_msr: Add PL4 support for Arrowlake-U
powercap: intel_rapl_tpmi: Ignore minor version change
thermal: intel: int340x: processor: Fix warning during module unload
powercap: intel_rapl_tpmi: Fix bogus register reading
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Address possible use-after-free scenarios during the processing of
thermal netlink commands and during thermal zone removal (Rafael
Wysocki)"
* tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Free tzp copy along with the thermal zone
thermal: core: Reference count the zone in thermal_zone_get_by_id()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"Reduce the number of ACPI IRQ override DMI quirks by combining quirks
that cover similar systems while making them cover additional models
at the same time (Hans de Goede)"
* tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: resource: Fold Asus Vivobook Pro N6506M* DMI quirks together
ACPI: resource: Fold Asus ExpertBook B1402C* and B1502C* DMI quirks together
ACPI: resource: Make Asus ExpertBook B2502 matches cover more models
ACPI: resource: Make Asus ExpertBook B2402 matches cover more models
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fixes from Ulf Hansson:
"pmdomain core:
- Fix alloc/free in dev_pm_domain_attach|detach_list()
pmdomain providers:
- qcom: Fix the return of uninitialized variable
pmdomain consumers:
- drm/tegra/gr3d: Revert conversion to dev_pm_domain_attach|detach_list()
OPP core:
- Fix error code in dev_pm_opp_set_config()"
* tag 'pmdomain-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
PM: domains: Fix alloc/free in dev_pm_domain_attach|detach_list()
Revert "drm/tegra: gr3d: Convert into dev_pm_domain_attach|detach_list()"
pmdomain: qcom-cpr: Fix the return of uninitialized variable
OPP: fix error code in dev_pm_opp_set_config()
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Prevent splat from warning when setting maximum DMA segment
MMC host:
- mvsdio: Drop sg_miter support for PIO as it didn't work
- sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520
variant"
* tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-of-dwcmshc: Prevent stale command interrupt handling
Revert "mmc: mvsdio: Use sg_miter for PIO"
mmc: core: Only set maximum DMA segment size if DMA is supported
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Fix a hibernate regression where the disk was needlessly spun down
and then immediately spun up both when entering and when resuming
from hibernation (me)
- Update the MAINTAINERS file to remove remnants from Jens
maintainership of libata (Damien)
* tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Update MAINTAINERS file
ata: libata: avoid superfluous disk spin down + spin up during hibernation
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Pull drm fixes from Dave Airlie:
"Weekly fixes haul for drm, lots of small fixes all over, amdgpu, xe
lead the way, some minor nouveau and radeon fixes, and then a bunch of
misc all over.
Nothing too scary or out of the unusual.
sched:
- Avoid leaking lockdep map
fbdev-dma:
- Only clean up deferred I/O if instanciated
amdgpu:
- Fix invalid UBSAN warnings
- Fix artifacts in MPO transitions
- Hibernation fix
amdkfd:
- Fix an eviction fence leak
radeon:
- Add late register for connectors
- Always set GEM function pointers
i915:
- HDCP refcount fix
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
- Fix error checking with xa_store()
- Fix missing freq restore on GSC load error
- Fix wedged_mode file permission
- Fix use-after-free in ct communication"
* tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel:
drm/fbdev-dma: Only cleanup deferred I/O if necessary
drm/xe: Make wedged_mode debugfs writable
drm/xe: Restore GT freq on GSC load error
drm/xe/guc_submit: fix xa_store() error checking
drm/xe/ct: fix xa_store() error checking
drm/xe/ct: prevent UAF in send_recv()
drm/radeon: always set GEM function pointer
nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
nouveau/dmem: Fix privileged error in copy engine channel
drm/amd/display: fix hibernate entry for DCN35+
drm/amd/display: Clear update flags after update has been applied
drm/amdgpu: partially revert powerplay `__counted_by` changes
drm/radeon: add late_register for connector
drm/amdkfd: Fix an eviction fence leak
drm/vc4: Stop the active perfmon before being destroyed
drm/v3d: Stop the active perfmon before being destroyed
drm/i915/hdcp: fix connector refcounting
drm/nouveau/gsp: remove extraneous ; after mutex
drm/xe: Drop GuC submit_wq pool
drm/sched: Use drm sched lockdep map for submit_wq
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The function read_alloc_one_name() does not initialize the name field of
the passed fscrypt_str struct if kmalloc fails to allocate the
corresponding buffer. Thus, it is not guaranteed that
fscrypt_str.name is initialized when freeing it.
This is a follow-up to the linked patch that fixes the remaining
instances of the bug introduced by commit e43eec81c516 ("btrfs: use
struct qstr instead of name and namelen pairs").
Link: https://lore.kernel.org/linux-btrfs/20241009080833.1355894-1-jroi.martin@gmail.com/
Fixes: e43eec81c516 ("btrfs: use struct qstr instead of name and namelen pairs")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Roi Martin <jroi.martin@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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As all changed_* functions need to return something, just return 0
directly here, as the verity status is passed via the context.
Reported by LKP: fs/btrfs/send.c:6877:5-8: Unneeded variable: "ret". Return "0" on line 6883
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202410092305.WbyqspH8-lkp@intel.com/
Signed-off-by: Christian Heusel <christian@heusel.eu>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The add_inode_ref() function does not initialize the "name" struct when
it is declared. If any of the following calls to "read_one_inode()
returns NULL,
dir = read_one_inode(root, parent_objectid);
if (!dir) {
ret = -ENOENT;
goto out;
}
inode = read_one_inode(root, inode_objectid);
if (!inode) {
ret = -EIO;
goto out;
}
then "name.name" would be freed on "out" before being initialized.
out:
...
kfree(name.name);
This issue was reported by Coverity with CID 1526744.
Fixes: e43eec81c516 ("btrfs: use struct qstr instead of name and namelen pairs")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Roi Martin <jroi.martin@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Since commit 4c39529663b9 ("slab: Warn on duplicate cache names when
DEBUG_VM=y"), slab complains about duplicate cache names. Hence this
patch. The approach is as follows:
- Maintain an xarray with the slab size as index and a reference count
and a kmem_cache pointer as contents. Use srpt-${slab_size} as kmem
cache name.
- Use 512-byte alignment for all slabs instead of only for some of the
slabs.
- Increment the reference count instead of calling kmem_cache_create().
- Decrement the reference count instead of calling kmem_cache_destroy().
Fixes: 5dabcd0456d7 ("RDMA/srpt: Add support for immediate data")
Link: https://patch.msgid.link/r/20241009210048.4122518-1-bvanassche@acm.org
Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Closes: https://lore.kernel.org/linux-block/xpe6bea7rakpyoyfvspvin2dsozjmjtjktpph7rep3h25tv7fb@ooz4cu5z6bq6/
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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There is "accept*" misspelled as "accpet*" in the comments. Fix the
spelling.
Fixes: 146b9756f14c ("RDMA/irdma: Add connection manager")
Link: https://patch.msgid.link/r/20241008161913.19965-1-green@qrator.net
Signed-off-by: Alexander Zubkov <green@qrator.net>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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ip_dev_find() always returns real net_device address, whether traffic is
running on a vlan or real device, if traffic is over vlan, filling
endpoint struture with real ndev and an attempt to send a connect request
will results in RDMA_CM_EVENT_UNREACHABLE error. This patch fixes the
issue by using vlan_dev_real_dev().
Fixes: 830662f6f032 ("RDMA/cxgb4: Add support for active and passive open connection with IPv6 address")
Link: https://patch.msgid.link/r/20241007132311.70593-1-anumula@chelsio.com
Signed-off-by: Anumula Murali Mohan Reddy <anumula@chelsio.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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While running ISER over SIW, the initiator machine encounters a warning
from skb_splice_from_iter() indicating that a slab page is being used in
send_page. To address this, it is better to add a sendpage_ok() check
within the driver itself, and if it returns 0, then MSG_SPLICE_PAGES flag
should be disabled before entering the network stack.
A similar issue has been discussed for NVMe in this thread:
https://lore.kernel.org/all/20240530142417.146696-1-ofir.gal@volumez.com/
WARNING: CPU: 0 PID: 5342 at net/core/skbuff.c:7140 skb_splice_from_iter+0x173/0x320
Call Trace:
tcp_sendmsg_locked+0x368/0xe40
siw_tx_hdt+0x695/0xa40 [siw]
siw_qp_sq_process+0x102/0xb00 [siw]
siw_sq_resume+0x39/0x110 [siw]
siw_run_sq+0x74/0x160 [siw]
kthread+0xd2/0x100
ret_from_fork+0x34/0x40
ret_from_fork_asm+0x1a/0x30
Link: https://patch.msgid.link/r/20241007125835.89942-1-showrya@chelsio.com
Signed-off-by: Showrya M N <showrya@chelsio.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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We are using the logical address ("bytenr") of an extent as the key for
qgroup records in the dirty extents xarray. This is a problem because the
xarrays use "unsigned long" for keys/indices, meaning that on a 32 bits
platform any extent starting at or beyond 4G is truncated, which is a too
low limitation as virtually everyone is using storage with more than 4G of
space. This means a "bytenr" of 4G gets truncated to 0, and so does 8G and
16G for example, resulting in incorrect qgroup accounting.
Fix this by using sector numbers as keys instead, that is, using keys that
match the logical address right shifted by fs_info->sectorsize_bits, which
is what we do for the fs_info->buffer_radix that tracks extent buffers
(radix trees also use an "unsigned long" type for keys). This also makes
the index space more dense which helps optimize the xarray (as mentioned
at Documentation/core-api/xarray.rst).
Fixes: 3cce39a8ca4e ("btrfs: qgroup: use xarray to track dirty extents in transaction")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Even though system user has a supplementary group, It gets
NT_STATUS_ACCESS_DENIED when attempting to create file or directory.
This patch add KSMBD_EVENT_LOGIN_REQUEST_EXT/RESPONSE_EXT netlink events
to get supplementary groups list. The new netlink event doesn't break
backward compatibility when using old ksmbd-tools.
Co-developed-by: Atte Heikkilä <atteh.mailbox@gmail.com>
Signed-off-by: Atte Heikkilä <atteh.mailbox@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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This fixes a regression which prevents parallel DIO reads.
Fixes: 0cac51185e65 ("f2fs: fix to avoid racing in between read and OPU dio write")
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Unlike EMR tools which encode type information in their tool ID, tools
for AES sensors are all "generic pens". It is inappropriate to make use
of the wacom_intuos_get_tool_type function when dealing with these kinds
of devices. Instead, we should only ever report BTN_TOOL_PEN or
BTN_TOOL_RUBBER, as depending on the state of the Eraser and Invert
bits.
Reported-by: Daniel Jutz <daniel@djutz.com>
Closes: https://lore.kernel.org/linux-input/3cd82004-c5b8-4f2a-9a3b-d88d855c65e4@heusel.eu/
Bisected-by: Christian Heusel <christian@heusel.eu>
Fixes: 9c2913b962da ("HID: wacom: more appropriate tool type categorization")
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1041
Link: https://github.com/linuxwacom/input-wacom/issues/440
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Cc: stable@vger.kernel.org
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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`kaddr` becomes useless after switching to metabuf.
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20241010235830.1535616-1-hsiangkao@linux.alibaba.com
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Just fold it into the caller for simplicity.
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20241010090420.405871-1-hsiangkao@linux.alibaba.com
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Only regular inodes are allowed for file-backed mounts, not directories
(as seen in the original syzbot case) or special inodes.
Also ensure that .read_folio() is implemented on the underlying fs
for the primary device.
Fixes: fb176750266a ("erofs: add file-backed mount support")
Reported-by: syzbot+001306cd9c92ce0df23f@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/r/00000000000011bdde0622498ee3@google.com
Tested-by: syzbot+001306cd9c92ce0df23f@syzkaller.appspotmail.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240917130803.32418-1-hsiangkao@linux.alibaba.com
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Following OOPS is encountered while loading test_bpf module
on powerpc 8xx:
[ 218.835567] BUG: Unable to handle kernel data access on write at 0xcb000000
[ 218.842473] Faulting instruction address: 0xc0017a80
[ 218.847451] Oops: Kernel access of bad area, sig: 11 [#1]
[ 218.852854] BE PAGE_SIZE=16K PREEMPT CMPC885
[ 218.857207] SAF3000 DIE NOTIFICATION
[ 218.860713] Modules linked in: test_bpf(+) test_module
[ 218.865867] CPU: 0 UID: 0 PID: 527 Comm: insmod Not tainted 6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty #1280
[ 218.875546] Hardware name: MIAE 8xx 0x500000 CMPC885
[ 218.880521] NIP: c0017a80 LR: beab859c CTR: 000101d4
[ 218.885584] REGS: cac2bc90 TRAP: 0300 Not tainted (6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty)
[ 218.894308] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 55005555 XER: a0007100
[ 218.901290] DAR: cb000000 DSISR: c2000000
[ 218.901290] GPR00: 000185d1 cac2bd50 c21b9580 caf7c030 c3883fcc 00000008 cafffffc 00000000
[ 218.901290] GPR08: 00040000 18300000 20000000 00000004 99005555 100d815e ca669d08 00000369
[ 218.901290] GPR16: ca730000 00000000 ca2c004c 00000000 00000000 0000035d 00000311 00000369
[ 218.901290] GPR24: ca732240 00000001 00030ba3 c3800000 00000000 00185d48 caf7c000 ca2c004c
[ 218.941087] NIP [c0017a80] memcpy+0x88/0xec
[ 218.945277] LR [beab859c] test_bpf_init+0x22c/0x3c90 [test_bpf]
[ 218.951476] Call Trace:
[ 218.953916] [cac2bd50] [beab8570] test_bpf_init+0x200/0x3c90 [test_bpf] (unreliable)
[ 218.962034] [cac2bde0] [c0004c04] do_one_initcall+0x4c/0x1fc
[ 218.967706] [cac2be40] [c00a2ec4] do_init_module+0x68/0x360
[ 218.973292] [cac2be60] [c00a5194] init_module_from_file+0x8c/0xc0
[ 218.979401] [cac2bed0] [c00a5568] sys_finit_module+0x250/0x3f0
[ 218.985248] [cac2bf20] [c000e390] system_call_exception+0x8c/0x15c
[ 218.991444] [cac2bf30] [c00120a8] ret_from_syscall+0x0/0x28
This happens in the main loop of memcpy()
==> c0017a80: 7c 0b 37 ec dcbz r11,r6
c0017a84: 80 e4 00 04 lwz r7,4(r4)
c0017a88: 81 04 00 08 lwz r8,8(r4)
c0017a8c: 81 24 00 0c lwz r9,12(r4)
c0017a90: 85 44 00 10 lwzu r10,16(r4)
c0017a94: 90 e6 00 04 stw r7,4(r6)
c0017a98: 91 06 00 08 stw r8,8(r6)
c0017a9c: 91 26 00 0c stw r9,12(r6)
c0017aa0: 95 46 00 10 stwu r10,16(r6)
c0017aa4: 42 00 ff dc bdnz c0017a80 <memcpy+0x88>
Commit ac9f97ff8b32 ("powerpc/8xx: Inconditionally use task PGDIR in
DTLB misses") relies on re-reading DAR register to know if an error is
due to a missing copy of a PMD entry in task's PGDIR, allthough DAR
was already read in the exception prolog and copied into thread
struct. This is because is it done very early in the exception and
there are not enough registers available to keep a pointer to thread
struct.
However, dcbz instruction is buggy and doesn't update DAR register on
fault. That is detected and generates a call to FixupDAR workaround
which updates DAR copy in thread struct but doesn't fix DAR register.
Let's fix DAR in addition to the update of DAR copy in thread struct.
Fixes: ac9f97ff8b32 ("powerpc/8xx: Inconditionally use task PGDIR in DTLB misses")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/2b851399bd87e81c6ccb87ea3a7a6b32c7aa04d7.1728118396.git.christophe.leroy@csgroup.eu
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix error checking with xa_store() (Matthe Auld)
- Fix missing freq restore on GSC load error (Vinay)
- Fix wedged_mode file permission (Matt Roper)
- Fix use-after-free in ct communication (Matthew Auld)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/jri65tmv3bjbhqhxs5smv45nazssxzhtwphojem4uufwtjuliy@gsdhlh6kzsdy
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
fbdev-dma:
- Only clean up deferred I/O if instanciated
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
sched:
- Avoid leaking lockdep map
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241010133708.GA461532@localhost.localdomain
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- HDCP refcount fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Zwd78Tnw8t3w9F16@jlahtine-mobl.ger.corp.intel.com
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While enabling and disabling a BPF scheduler, every task is iterated a
couple times by walking scx_tasks. Except for one, all iterations keep
holding scx_tasks_lock. On multi-socket systems under heavy rq lock
contention and high number of threads, this can can lead to RCU and other
stalls.
The following is triggered on a 2 x AMD EPYC 7642 system (192 logical CPUs)
running `stress-ng --workload 150 --workload-threads 10` with >400k idle
threads and RCU stall period reduced to 5s:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 91-...!: (10 ticks this GP) idle=0754/1/0x4000000000000000 softirq=18204/18206 fqs=17
rcu: 186-...!: (17 ticks this GP) idle=ec54/1/0x4000000000000000 softirq=25863/25866 fqs=17
rcu: (detected by 80, t=10042 jiffies, g=89305, q=33 ncpus=192)
Sending NMI from CPU 80 to CPUs 91:
NMI backtrace for cpu 91
CPU: 91 UID: 0 PID: 284038 Comm: sched_ext_ops_h Kdump: loaded Not tainted 6.12.0-rc2-work-g6bf5681f7ee2-dirty #471
Hardware name: Supermicro Super Server/H11DSi, BIOS 2.8 12/14/2023
Sched_ext: simple (disabling+all)
RIP: 0010:queued_spin_lock_slowpath+0x17b/0x2f0
Code: 02 c0 10 03 00 83 79 08 00 75 08 f3 90 83 79 08 00 74 f8 48 8b 11 48 85 d2 74 09 0f 0d 0a eb 0a 31 d2 eb 06 31 d2 eb 02 f3 90 <8b> 07 66 85 c0 75 f7 39 d8 75 0d be 01 00 00 00 89 d8 f0 0f b1 37
RSP: 0018:ffffc9000fadfcb8 EFLAGS: 00000002
RAX: 0000000001700001 RBX: 0000000001700000 RCX: ffff88bfcaaf10c0
RDX: 0000000000000000 RSI: 0000000000000101 RDI: ffff88bfca8f0080
RBP: 0000000001700000 R08: 0000000000000090 R09: ffffffffffffffff
R10: ffff88a74761b268 R11: 0000000000000000 R12: ffff88a6b6765460
R13: ffffc9000fadfd60 R14: ffff88bfca8f0080 R15: ffff88bfcaac0000
FS: 0000000000000000(0000) GS:ffff88bfcaac0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5c55f526a0 CR3: 0000000afd474000 CR4: 0000000000350eb0
Call Trace:
<NMI>
</NMI>
<TASK>
do_raw_spin_lock+0x9c/0xb0
task_rq_lock+0x50/0x190
scx_task_iter_next_locked+0x157/0x170
scx_ops_disable_workfn+0x2c2/0xbf0
kthread_worker_fn+0x108/0x2a0
kthread+0xeb/0x110
ret_from_fork+0x36/0x40
ret_from_fork_asm+0x1a/0x30
</TASK>
Sending NMI from CPU 80 to CPUs 186:
NMI backtrace for cpu 186
CPU: 186 UID: 0 PID: 51248 Comm: fish Kdump: loaded Not tainted 6.12.0-rc2-work-g6bf5681f7ee2-dirty #471
scx_task_iter can safely drop locks while iterating. Make
scx_task_iter_next() drop scx_tasks_lock every 32 iterations to avoid
stalls.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
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|
Iterating with scx_task_iter involves scx_tasks_lock and optionally the rq
lock of the task being iterated. Both locks can be released during iteration
and the iteration can be continued after re-grabbing scx_tasks_lock.
Currently, all lock handling is pushed to the caller which is a bit
cumbersome and makes it difficult to add lock-aware behaviors. Make the
scx_task_iter helpers handle scx_tasks_lock.
- scx_task_iter_init/scx_taks_iter_exit() now grabs and releases
scx_task_lock, respectively. Renamed to
scx_task_iter_start/scx_task_iter_stop() to more clearly indicate that
there are non-trivial side-effects.
- Add __ prefix to scx_task_iter_rq_unlock() to indicate that the function
is internal.
- Add scx_task_iter_unlock/relock(). The former drops both rq lock (if held)
and scx_tasks_lock and the latter re-locks only scx_tasks_lock.
This doesn't cause behavior changes and will be used to implement stall
avoidance.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
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Bypass mode was depending on ops.select_cpu() which can't be trusted as with
the rest of the BPF scheduler. Always enable and use scx_select_cpu_dfl() in
bypass mode.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
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Move the sanity check from the inner function scx_select_cpu_dfl() to the
exported kfunc scx_bpf_select_cpu_dfl(). This doesn't cause behavior
differences and will allow using scx_select_cpu_dfl() in bypass mode
regardless of scx_builtin_idle_enabled.
Signed-off-by: Tejun Heo <tj@kernel.org>
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|
The disable path caps p->scx.slice to SCX_SLICE_DFL. As the field is already
being ignored at this stage during disable, the only effect this has is that
when the next BPF scheduler is loaded, it won't see unreasonable left-over
slices. Ultimately, this shouldn't matter but it's better to start in a
known state. Drop p->scx.slice capping from the disable path and instead
reset it to SCX_SLICE_DFL in the enable path.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
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|
This reverts commit 6f34d8d382d64e7d8e77f5a9ddfd06f4c04937b0.
Slice length is ignored while bypassing and tasks are switched on every tick
and thus the patch does not make any difference. The perceived difference
was from test noise.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth and netfilter.
Current release - regressions:
- dsa: sja1105: fix reception from VLAN-unaware bridges
- Revert "net: stmmac: set PP_FLAG_DMA_SYNC_DEV only if XDP is
enabled"
- eth: fec: don't save PTP state if PTP is unsupported
Current release - new code bugs:
- smc: fix lack of icsk_syn_mss with IPPROTO_SMC, prevent null-deref
- eth: airoha: update Tx CPU DMA ring idx at the end of xmit loop
- phy: aquantia: AQR115c fix up PMA capabilities
Previous releases - regressions:
- tcp: 3 fixes for retrans_stamp and undo logic
Previous releases - always broken:
- net: do not delay dst_entries_add() in dst_release()
- netfilter: restrict xtables extensions to families that are safe,
syzbot found a way to combine ebtables with extensions that are
never used by userspace tools
- sctp: ensure sk_state is set to CLOSED if hashing fails in
sctp_listen_start
- mptcp: handle consistently DSS corruption, and prevent corruption
due to large pmtu xmit"
* tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
MAINTAINERS: Add headers and mailing list to UDP section
MAINTAINERS: consistently exclude wireless files from NETWORKING [GENERAL]
slip: make slhc_remember() more robust against malicious packets
net/smc: fix lacks of icsk_syn_mss with IPPROTO_SMC
ppp: fix ppp_async_encode() illegal access
docs: netdev: document guidance on cleanup patches
phonet: Handle error of rtnl_register_module().
mpls: Handle error of rtnl_register_module().
mctp: Handle error of rtnl_register_module().
bridge: Handle error of rtnl_register_module().
vxlan: Handle error of rtnl_register_module().
rtnetlink: Add bulk registration helpers for rtnetlink message handlers.
net: do not delay dst_entries_add() in dst_release()
mptcp: pm: do not remove closing subflows
mptcp: fallback when MPTCP opts are dropped after 1st data
tcp: fix mptcp DSS corruption due to large pmtu xmit
mptcp: handle consistently DSS corruption
net: netconsole: fix wrong warning
net: dsa: refuse cross-chip mirroring operations
net: fec: don't save PTP state if PTP is unsupported
...
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fix from Steven Rostedt:
"Ring-buffer fix: do not have boot-mapped buffers use CPU hotplug
callbacks
When a ring buffer is mapped to memory assigned at boot, it also
splits it up evenly between the possible CPUs. But the allocation code
still attached a CPU notifier callback to this ring buffer. When a CPU
is added, the callback will happen and another per-cpu buffer is
created for the ring buffer.
But for boot mapped buffers, there is no room to add another one (as
they were all created already). The result of calling the CPU hotplug
notifier on a boot mapped ring buffer is unpredictable and could lead
to a system crash.
If the ring buffer is boot mapped simply do not attach the CPU
notifier to it"
* tag 'trace-ringbuffer-v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Do not have boot mapped buffers hook to CPU hotplug
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A root node is required to apply DT overlays. A root node is usually
present after commit 7b937cc243e5 ("of: Create of_root if no dtb
provided by firmware"), except for on arm64 systems booted with ACPI
tables. In that case, the root node is intentionally not populated
because it would "allow DT devices to be instantiated atop an ACPI base
system"[1].
Introduce an OF function that skips the kunit test if the root node
isn't populated. Limit the test to when both CONFIG_ARM64 and
CONFIG_ACPI are set, because otherwise the lack of a root node is a bug.
Make the function private and take a kunit test parameter so that it
can't be abused to test for the presence of the root node in non-test
code.
Use this function to skip tests that require the root node. Currently
that's the DT tests and any tests that apply overlays.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Closes: https://lore.kernel.org/r/6cd337fb-38f0-41cb-b942-5844b84433db@roeck-us.net
Link: https://lore.kernel.org/r/Zd4dQpHO7em1ji67@FVFF77S0Q05N.cambridge.arm.com [1]
Fixes: 893ecc6d2d61 ("of: Add KUnit test to confirm DTB is loaded")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20241009204133.1169931-1-sboyd@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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|
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- update fstrim loop and add more cancellation points, fix reported
delayed or blocked suspend if there's a huge chunk queued
- fix error handling in recent qgroup xarray conversion
- in zoned mode, fix warning printing device path without RCU
protection
- again fix invalid extent xarray state (6252690f7e1b), lost due to
refactoring
* tag 'for-6.12-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix clear_dirty and writeback ordering in submit_one_sector()
btrfs: zoned: fix missing RCU locking in error message when loading zone info
btrfs: fix missing error handling when adding delayed ref with qgroups enabled
btrfs: add cancellation points to trim loops
btrfs: split remaining space to discard in chunks
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|
git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix NFSD bring-up / shutdown
- Fix a UAF when releasing a stateid
* tag 'nfsd-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: fix possible badness in FREE_STATEID
nfsd: nfsd_destroy_serv() must call svc_destroy() even if nfsd_startup_net() failed
NFSD: Mark filecache "down" if init fails
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|
After a CPU has set itself offline and before it eventually calls
rcutree_report_cpu_dead(), there are still opportunities for callbacks
to be enqueued, for example from a softirq. When that happens on NOCB,
the rcuog wake-up is deferred through an IPI to an online CPU in order
not to call into the scheduler and risk arming the RT-bandwidth after
hrtimers have been migrated out and disabled.
But performing a synchronized IPI from a softirq is buggy as reported in
the following scenario:
WARNING: CPU: 1 PID: 26 at kernel/smp.c:633 smp_call_function_single
Modules linked in: rcutorture torture
CPU: 1 UID: 0 PID: 26 Comm: migration/1 Not tainted 6.11.0-rc1-00012-g9139f93209d1 #1
Stopper: multi_cpu_stop+0x0/0x320 <- __stop_cpus+0xd0/0x120
RIP: 0010:smp_call_function_single
<IRQ>
swake_up_one_online
__call_rcu_nocb_wake
__call_rcu_common
? rcu_torture_one_read
call_timer_fn
__run_timers
run_timer_softirq
handle_softirqs
irq_exit_rcu
? tick_handle_periodic
sysvec_apic_timer_interrupt
</IRQ>
Fix this with forcing deferred rcuog wake up through the NOCB timer when
the CPU is offline. The actual wake up will happen from
rcutree_report_cpu_dead().
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202409231644.4c55582d-lkp@intel.com
Fixes: 9139f93209d1 ("rcu/nocb: Fix RT throttling hrtimer armed from offline CPU")
Reviewed-by: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
|
|
Pull xfs fixes from Carlos Maiolino:
- A few small typo fixes
- fstests xfs/538 DEBUG-only fix
- Performance fix on blockgc on COW'ed files, by skipping trims on
cowblock inodes currently opened for write
- Prevent cowblocks to be freed under dirty pagecache during unshare
- Update MAINTAINERS file to quote the new maintainer
* tag 'xfs-6.12-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix a typo
xfs: don't free cowblocks from under dirty pagecache on unshare
xfs: skip background cowblock trims on inodes open for write
xfs: support lowmode allocations in xfs_bmap_exact_minlen_extent_alloc
xfs: call xfs_bmap_exact_minlen_extent_alloc from xfs_bmap_btalloc
xfs: don't ifdef around the exact minlen allocations
xfs: fold xfs_bmap_alloc_userdata into xfs_bmapi_allocate
xfs: distinguish extra split from real ENOSPC from xfs_attr_node_try_addname
xfs: distinguish extra split from real ENOSPC from xfs_attr3_leaf_split
xfs: return bool from xfs_attr3_leaf_add
xfs: merge xfs_attr_leaf_try_add into xfs_attr_leaf_addname
xfs: Use try_cmpxchg() in xlog_cil_insert_pcp_aggregate()
xfs: scrub: convert comma to semicolon
xfs: Remove empty declartion in header file
MAINTAINERS: add Carlos Maiolino as XFS release manager
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|
Simon Horman says:
====================
MAINTAINERS: Networking file coverage updates
The aim of this proposal is to make the handling of some files,
related to Networking and Wireless, more consistently. It does so by:
1. Adding some more headers to the UDP section, making it consistent
with the TCP section.
2. Excluding some files relating to Wireless from NETWORKING [GENERAL],
making their handling consistent with other files related to
Wireless.
The aim of this is to make things more consistent. And for MAINTAINERS
to better reflect the situation on the ground. I am more than happy to
be told that the current state of affairs is fine. Or for other ideas to
be discussed.
v1: https://lore.kernel.org/20241004-maint-net-hdrs-v1-0-41fd555aacc5@kernel.org
====================
Link: https://patch.msgid.link/20241009-maint-net-hdrs-v2-0-f2c86e7309c8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
Add netdev mailing list and some more udp.h headers to the UDP section.
This is now more consistent with the TCP section.
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241009-maint-net-hdrs-v2-2-f2c86e7309c8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
We already exclude wireless drivers from the netdev@ traffic, to
delegate it to linux-wireless@, and avoid overwhelming netdev@.
Many of the following wireless-related sections MAINTAINERS
are already not included in the NETWORKING [GENERAL] section.
For consistency, exclude those that are.
* 802.11 (including CFG80211/NL80211)
* MAC80211
* RFKILL
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20241009-maint-net-hdrs-v2-1-f2c86e7309c8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
