Merge most of SLUB feature work for 6.12:
- Barrier for pending kfree_rcu() in kmem_cache_destroy() and associated
refactoring of the destroy path (Vlastimil Babka)
- CONFIG_SLUB_RCU_DEBUG to allow KASAN catching UAF bugs in
SLAB_TYPESAFE_BY_RCU caches (Jann Horn)
- kmem_cache_charge() for delayed kmemcg charging (Shakeel Butt)
At the moment, the slab objects are charged to the memcg at the
allocation time. However there are cases where slab objects are
allocated at the time where the right target memcg to charge it to is
not known. One such case is the network sockets for the incoming
connection which are allocated in the softirq context.
Couple hundred thousand connections are very normal on large loaded
server and almost all of those sockets underlying those connections get
allocated in the softirq context and thus not charged to any memcg.
However later at the accept() time we know the right target memcg to
charge. Let's add new API to charge already allocated objects, so we can
have better accounting of the memory usage.
To measure the performance impact of this change, tcp_crr is used from
the neper [1] performance suite. Basically it is a network ping pong
test with new connection for each ping pong.
The server and the client are run inside 3 level of cgroup hierarchy
using the following commands:
Server:
$ tcp_crr -6
Client:
$ tcp_crr -6 -c -H ${server_ip}
If the client and server run on different machines with 50 GBPS NIC,
there is no visible impact of the change.
For the same machine experiment with v6.11-rc5 as base.
base (throughput) with-patch
tcp_crr 14545 (+- 80) 14463 (+- 56)
It seems like the performance impact is within the noise.
Link: https://github.com/google/neper [1]
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Yosry Ahmed <yosryahmed@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com> # net
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
We can first assess the flags, if it's unmergeable, there's no need
to calculate the size and align.
Signed-off-by: Xavier <xavier_qy@163.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Since commit 946fa0dbf2 ("mm/slub: extend redzone check to extra
allocated kmalloc space than requested"), setting orig_size treats
the wasted space (object_size - orig_size) as a redzone. However with
init_on_free=1 we clear the full object->size, including the redzone.
Additionally we clear the object metadata, including the stored orig_size,
making it zero, which makes check_object() treat the whole object as a
redzone.
These issues lead to the following BUG report with "slub_debug=FUZ
init_on_free=1":
[ 0.000000] =============================================================================
[ 0.000000] BUG kmalloc-8 (Not tainted): kmalloc Redzone overwritten
[ 0.000000] -----------------------------------------------------------------------------
[ 0.000000]
[ 0.000000] 0xffff000010032858-0xffff00001003285f @offset=2136. First byte 0x0 instead of 0xcc
[ 0.000000] FIX kmalloc-8: Restoring kmalloc Redzone 0xffff000010032858-0xffff00001003285f=0xcc
[ 0.000000] Slab 0xfffffdffc0400c80 objects=36 used=23 fp=0xffff000010032a18 flags=0x3fffe0000000200(workingset|node=0|zone=0|lastcpupid=0x1ffff)
[ 0.000000] Object 0xffff000010032858 @offset=2136 fp=0xffff0000100328c8
[ 0.000000]
[ 0.000000] Redzone ffff000010032850: cc cc cc cc cc cc cc cc ........
[ 0.000000] Object ffff000010032858: cc cc cc cc cc cc cc cc ........
[ 0.000000] Redzone ffff000010032860: cc cc cc cc cc cc cc cc ........
[ 0.000000] Padding ffff0000100328b4: 00 00 00 00 00 00 00 00 00 00 00 00 ............
[ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc3-next-20240814-00004-g61844c55c3f4 #144
[ 0.000000] Hardware name: NXP i.MX95 19X19 board (DT)
[ 0.000000] Call trace:
[ 0.000000] dump_backtrace+0x90/0xe8
[ 0.000000] show_stack+0x18/0x24
[ 0.000000] dump_stack_lvl+0x74/0x8c
[ 0.000000] dump_stack+0x18/0x24
[ 0.000000] print_trailer+0x150/0x218
[ 0.000000] check_object+0xe4/0x454
[ 0.000000] free_to_partial_list+0x2f8/0x5ec
To address the issue, use orig_size to clear the used area. And restore
the value of orig_size after clear the remaining area.
When CONFIG_SLUB_DEBUG not defined, (get_orig_size()' directly returns
s->object_size. So when using memset to init the area, the size can simply
be orig_size, as orig_size returns object_size when CONFIG_SLUB_DEBUG not
enabled. And orig_size can never be bigger than object_size.
Fixes: 946fa0dbf2 ("mm/slub: extend redzone check to extra allocated kmalloc space than requested")
Cc: <stable@vger.kernel.org>
Reviewed-by: Feng Tang <feng.tang@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
In kmem_buckets_create(), the kmem_buckets object is allocated by
kmem_cache_alloc() from kmem_buckets_cache, but in the failure case,
it's freed by kfree(). This is not wrong, but using kmem_cache_free()
is the more common pattern, so use it.
Signed-off-by: Yan Zhen <yanzhen@vivo.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Currently, KASAN is unable to catch use-after-free in SLAB_TYPESAFE_BY_RCU
slabs because use-after-free is allowed within the RCU grace period by
design.
Add a SLUB debugging feature which RCU-delays every individual
kmem_cache_free() before either actually freeing the object or handing it
off to KASAN, and change KASAN to poison freed objects as normal when this
option is enabled.
For now I've configured Kconfig.debug to default-enable this feature in the
KASAN GENERIC and SW_TAGS modes; I'm not enabling it by default in HW_TAGS
mode because I'm not sure if it might have unwanted performance degradation
effects there.
Note that this is mostly useful with KASAN in the quarantine-based GENERIC
mode; SLAB_TYPESAFE_BY_RCU slabs are basically always also slabs with a
->ctor, and KASAN's assign_tag() currently has to assign fixed tags for
those, reducing the effectiveness of SW_TAGS/HW_TAGS mode.
(A possible future extension of this work would be to also let SLUB call
the ->ctor() on every allocation instead of only when the slab page is
allocated; then tag-based modes would be able to assign new tags on every
reallocation.)
Tested-by: syzbot+263726e59eab6b442723@syzkaller.appspotmail.com
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz> #slab
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Currently, when KASAN is combined with init-on-free behavior, the
initialization happens before KASAN's "invalid free" checks.
More importantly, a subsequent commit will want to RCU-delay the actual
SLUB freeing of an object, and we'd like KASAN to still validate
synchronously that freeing the object is permitted. (Otherwise this
change will make the existing testcase kmem_cache_invalid_free fail.)
So add a new KASAN hook that allows KASAN to pre-validate a
kmem_cache_free() operation before SLUB actually starts modifying the
object or its metadata.
Inside KASAN, this:
- moves checks from poison_slab_object() into check_slab_allocation()
- moves kasan_arch_is_ready() up into callers of poison_slab_object()
- removes "ip" argument of poison_slab_object() and __kasan_slab_free()
(since those functions no longer do any reporting)
Acked-by: Vlastimil Babka <vbabka@suse.cz> #slub
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Add a test that will create cache, allocate one object, kfree_rcu() it
and attempt to destroy it. As long as the usage of kvfree_rcu_barrier()
in kmem_cache_destroy() works correctly, there should be no warnings in
dmesg and the test should pass.
Additionally add a test_leak_destroy() test that leaks an object on
purpose and verifies that kmem_cache_destroy() catches it.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
We would like to replace call_rcu() users with kfree_rcu() where the
existing callback is just a kmem_cache_free(). However this causes
issues when the cache can be destroyed (such as due to module unload).
Currently such modules should be issuing rcu_barrier() before
kmem_cache_destroy() to have their call_rcu() callbacks processed first.
This barrier is however not sufficient for kfree_rcu() in flight due
to the batching introduced by a35d16905e ("rcu: Add basic support for
kfree_rcu() batching").
This is not a problem for kmalloc caches which are never destroyed, but
since removing SLOB, kfree_rcu() is allowed also for any other cache,
that might be destroyed.
In order not to complicate the API, put the responsibility for handling
outstanding kfree_rcu() in kmem_cache_destroy() itself. Use the newly
introduced kvfree_rcu_barrier() to wait before destroying the cache.
This is similar to how we issue rcu_barrier() for SLAB_TYPESAFE_BY_RCU
caches, but has to be done earlier, as the latter only needs to wait for
the empty slab pages to finish freeing, and not objects from the slab.
Users of call_rcu() with arbitrary callbacks should still issue
rcu_barrier() before destroying the cache and unloading the module, as
kvfree_rcu_barrier() is not a superset of rcu_barrier() and the
callbacks may be invoking module code or performing other actions that
are necessary for a successful unload.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Add a kvfree_rcu_barrier() function. It waits until all
in-flight pointers are freed over RCU machinery. It does
not wait any GP completion and it is within its right to
return immediately if there are no outstanding pointers.
This function is useful when there is a need to guarantee
that a memory is fully freed before destroying memory caches.
For example, during unloading a kernel module.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
There used to be a rcu_barrier() for SLAB_TYPESAFE_BY_RCU caches in
kmem_cache_destroy() until commit 657dc2f972 ("slab: remove
synchronous rcu_barrier() call in memcg cache release path") moved it to
an asynchronous work that finishes the destroying of such caches.
The motivation for that commit was the MEMCG_KMEM integration that at
the time created and removed clones of the global slab caches together
with their cgroups, and blocking cgroups removal was unwelcome. The
implementation later changed to per-object memcg tracking using a single
cache, so there should be no more need for a fast non-blocking
kmem_cache_destroy(), which is typically only done when a module is
unloaded etc.
Going back to synchronous barrier has the following advantages:
- simpler implementation
- it's easier to test the result of kmem_cache_destroy() in a kunit test
Thus effectively revert commit 657dc2f972. It is not a 1:1 revert as
the code has changed since. The main part is that kmem_cache_release(s)
is always called from kmem_cache_destroy(), but for SLAB_TYPESAFE_BY_RCU
caches there's a rcu_barrier() first.
Suggested-by: Mateusz Guzik <mjguzik@gmail.com>
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
kfence_shutdown_cache() is called under slab_mutex when the cache is
destroyed synchronously, and outside slab_mutex during the delayed
destruction of SLAB_TYPESAFE_BY_RCU caches.
It seems it should always be safe to call it outside of slab_mutex so we
can just move the call to kmem_cache_release(), which is called outside.
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
kmem_cache_destroy() includes removing the associated sysfs and debugfs
directories, and the cache from the list of caches that appears in
/proc/slabinfo. Currently this might not happen immediately when:
- the cache is SLAB_TYPESAFE_BY_RCU and the cleanup is delayed,
including the directores removal
- __kmem_cache_shutdown() fails due to outstanding objects - the
directories remain indefinitely
When a cache is recreated with the same name, such as due to module
unload followed by a load, the directories will fail to be recreated for
the new instance of the cache due to the old directories being present.
The cache will also appear twice in /proc/slabinfo.
While we want to convert the SLAB_TYPESAFE_BY_RCU cleanup to be
synchronous again, the second point remains. So let's fix this first and
have the directories and slabinfo removed immediately in
kmem_cache_destroy() and regardless of __kmem_cache_shutdown() success.
This should not make debugging harder if __kmem_cache_shutdown() fails,
because a detailed report of outstanding objects is printed into dmesg
already due to the failure.
Also simplify kmem_cache_release() sysfs handling by using
__is_defined(SLAB_SUPPORTS_SYSFS).
Note the resulting code in kmem_cache_destroy() is a bit ugly but will
be further simplified - this is in order to make small bisectable steps.
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
There's only one caller of shutdown_cache() so move the code into it.
Preparatory patch for further changes, no functional change.
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Revert commit 8014c46ad9 ("slub: use alloc_pages_node() in alloc_slab_page()").
The patch disabled the numa policy support in the slab allocator. It
did not consider that alloc_pages() uses memory policies but
alloc_pages_node() does not.
As a result of this patch slab memory allocations are no longer spread via
interleave policy across all available NUMA nodes on bootup. Instead
all slab memory is allocated close to the boot processor. This leads to
an imbalance of memory accesses on NUMA systems.
Also applications using MPOL_INTERLEAVE as a memory policy will no longer
spread slab allocations over all nodes in the interleave set but allocate
memory locally. This may also result in unbalanced allocations
on a single numa node.
SLUB does not apply memory policies to individual object allocations.
However, it relies on the page allocators support of memory policies
through alloc_pages() to do the NUMA memory allocations on a per
folio or page level. SLUB also applies memory policies when retrieving
partial allocated slab pages from the partial list.
Fixes: 8014c46ad9 ("slub: use alloc_pages_node() in alloc_slab_page()")
Signed-off-by: Christoph Lameter <cl@gentwo.org>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Depending on how remote_node_defrag_ratio is configured, allocations can
end up in this path as a result of the local node being OOM, despite the
allocation overall being unconstrained (node == -1).
When we print a warning, printing the current CPU makes that situation
more clear (i.e., you can immediately see which node's OOM status
matters for the allocation at hand).
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
- rhashtable conversion for vfs inodes
- rcu_pending, btree key cache conversion
+ nocow deadlock fix
+ fix for new rebalance_work accounting
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Merge tag 'bcachefs-2024-08-24' of git://evilpiepirate.org/bcachefs
Pull bcachefs fixes from Kent Overstreet:
- assorted syzbot fixes
- some upgrade fixes for old (pre 1.0) filesystems
- fix for moving data off a device that was switched to durability=0
after data had been written to it.
- nocow deadlock fix
- fix for new rebalance_work accounting
* tag 'bcachefs-2024-08-24' of git://evilpiepirate.org/bcachefs: (28 commits)
bcachefs: Fix rebalance_work accounting
bcachefs: Fix failure to flush moves before sleeping in copygc
bcachefs: don't use rht_bucket() in btree_key_cache_scan()
bcachefs: add missing inode_walker_exit()
bcachefs: clear path->should_be_locked in bch2_btree_key_cache_drop()
bcachefs: Fix double assignment in check_dirent_to_subvol()
bcachefs: Fix refcounting in discard path
bcachefs: Fix compat issue with old alloc_v4 keys
bcachefs: Fix warning in bch2_fs_journal_stop()
fs/super.c: improve get_tree() error message
bcachefs: Fix missing validation in bch2_sb_journal_v2_validate()
bcachefs: Fix replay_now_at() assert
bcachefs: Fix locking in bch2_ioc_setlabel()
bcachefs: fix failure to relock in btree_node_fill()
bcachefs: fix failure to relock in bch2_btree_node_mem_alloc()
bcachefs: unlock_long() before resort in journal replay
bcachefs: fix missing bch2_err_str()
bcachefs: fix time_stats_to_text()
bcachefs: Fix bch2_bucket_gens_init()
bcachefs: Fix bch2_trigger_alloc assert
...
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Merge tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- query directory flex array fix
- fix potential null ptr reference in open
- fix error message in some open cases
- two minor cleanups
* tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd:
smb/server: update misguided comment of smb2_allocate_rsp_buf()
smb/server: remove useless assignment of 'file_present' in smb2_open()
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
smb/server: fix return value of smb2_open()
ksmbd: the buffer of smb2 query dir response has at least 1 byte
- Fix KASLR base offset to account for symbol offsets in the vmlinux
ELF file, preventing tool breakages like the drgn debugger
- Fix potential memory corruption of physmem_info during kernel physical
address randomization
- Fix potential memory corruption due to overlap between the relocated
lowcore and identity mapping by correctly reserving lowcore memory
- Fix performance regression and avoid randomizing identity mapping base
by default
- Fix unnecessary delay of AP bus binding complete uevent to prevent
startup lag in KVM guests using AP
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Merge tag 's390-6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix KASLR base offset to account for symbol offsets in the vmlinux
ELF file, preventing tool breakages like the drgn debugger
- Fix potential memory corruption of physmem_info during kernel
physical address randomization
- Fix potential memory corruption due to overlap between the relocated
lowcore and identity mapping by correctly reserving lowcore memory
- Fix performance regression and avoid randomizing identity mapping
base by default
- Fix unnecessary delay of AP bus binding complete uevent to prevent
startup lag in KVM guests using AP
* tag 's390-6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/boot: Fix KASLR base offset off by __START_KERNEL bytes
s390/boot: Avoid possible physmem_info segment corruption
s390/ap: Refine AP bus bindings complete processing
s390/mm: Pin identity mapping base to zero
s390/mm: Prevent lowcore vs identity mapping overlap
The important core fix is another tweak to our discard discovery
issues. The off by 512 in logical block count seems bad, but in fact
the inline was only ever used in debug prints, which is why no-one
noticed.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.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 important core fix is another tweak to our discard discovery
issues. The off by 512 in logical block count seems bad, but in fact
the inline was only ever used in debug prints, which is why no-one
noticed"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sd: Do not attempt to configure discard unless LBPME is set
scsi: MAINTAINERS: Add header files to SCSI SUBSYSTEM
scsi: ufs: qcom: Add UFSHCD_QUIRK_BROKEN_LSDBS_CAP for SM8550 SoC
scsi: ufs: core: Add a quirk for handling broken LSDBS field in controller capabilities register
scsi: core: Fix the return value of scsi_logical_block_count()
scsi: MAINTAINERS: Update HiSilicon SAS controller driver maintainer
rebalance_work was keying off of the presence of rebelance_opts in the
extent - but that was incorrect, we keep those around after rebalance
for indirect extents since the inode's options are not directly
available
Fixes: 20ac515a9c ("bcachefs: bch_acct_rebalance_work")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This fixes an apparent deadlock - rebalance would get stuck trying to
take nocow locks because they weren't being released by copygc.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Three patches addressing cpuset corner cases.
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Merge tag 'cgroup-for-6.11-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"Three patches addressing cpuset corner cases"
* tag 'cgroup-for-6.11-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/cpuset: Eliminate unncessary sched domains rebuilds in hotplug
cgroup/cpuset: Clear effective_xcpus on cpus_allowed clearing only if cpus.exclusive not set
cgroup/cpuset: fix panic caused by partcmd_update
Nothing too interesting. One patch to remove spurious warning and others to
address static checker warnings.
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Merge tag 'wq-for-6.11-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"Nothing too interesting. One patch to remove spurious warning and
others to address static checker warnings"
* tag 'wq-for-6.11-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Correct declaration of cpu_pwq in struct workqueue_struct
workqueue: Fix spruious data race in __flush_work()
workqueue: Remove incorrect "WARN_ON_ONCE(!list_empty(&worker->entry));" from dying worker
workqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask()
workqueue: doc: Fix function name, remove markers
- Only request r4k clockevent interrupt on one CPU
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Merge tag 'mips-fixes_6.11_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- Set correct timer mode on Loongson64
- Only request r4k clockevent interrupt on one CPU
* tag 'mips-fixes_6.11_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: cevt-r4k: Don't call get_c0_compare_int if timer irq is installed
MIPS: Loongson64: Set timer mode in cpu-probe
- Don't drop references on LPIs that weren't visited by the vgic-debug
iterator
- Cure lock ordering issue when unregistering vgic redistributors
- Fix for misaligned stage-2 mappings when VMs are backed by hugetlb
pages
- Treat SGI registers as UNDEFINED if a VM hasn't been configured for
GICv3
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 kvm fixes from Catalin Marinas:
- Don't drop references on LPIs that weren't visited by the vgic-debug
iterator
- Cure lock ordering issue when unregistering vgic redistributors
- Fix for misaligned stage-2 mappings when VMs are backed by hugetlb
pages
- Treat SGI registers as UNDEFINED if a VM hasn't been configured for
GICv3
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3
KVM: arm64: Ensure canonical IPA is hugepage-aligned when handling fault
KVM: arm64: vgic: Don't hold config_lock while unregistering redistributors
KVM: arm64: vgic-debug: Don't put unmarked LPIs
Bugfixes:
* Fix rpcrdma refcounting in xa_alloc
* Fix rpcrdma usage of XA_FLAGS_ALLOC
* Fix requesting FATTR4_WORD2_OPEN_ARGUMENTS
* Fix attribute bitmap decoder to handle a 3rd word
* Add reschedule points when returning delegations to avoid soft lockups
* Fix clearing layout segments in layoutreturn
* Avoid unnecessary rescanning of the per-server delegation list
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Merge tag 'nfs-for-6.11-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Fix rpcrdma refcounting in xa_alloc
- Fix rpcrdma usage of XA_FLAGS_ALLOC
- Fix requesting FATTR4_WORD2_OPEN_ARGUMENTS
- Fix attribute bitmap decoder to handle a 3rd word
- Add reschedule points when returning delegations to avoid soft lockups
- Fix clearing layout segments in layoutreturn
- Avoid unnecessary rescanning of the per-server delegation list
* tag 'nfs-for-6.11-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Avoid unnecessary rescanning of the per-server delegation list
NFSv4: Fix clearing of layout segments in layoutreturn
NFSv4: Add missing rescheduling points in nfs_client_return_marked_delegations
nfs: fix bitmap decoder to handle a 3rd word
nfs: fix the fetch of FATTR4_OPEN_ARGUMENTS
rpcrdma: Trace connection registration and unregistration
rpcrdma: Use XA_FLAGS_ALLOC instead of XA_FLAGS_ALLOC1
rpcrdma: Device kref is over-incremented on error from xa_alloc
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Merge tag 'v6.11-rc4-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fix refcount leak (can cause rmmod fail)
- fix byte range locking problem with cached reads
- fix for mount failure if reparse point unrecognized
- minor typo
* tag 'v6.11-rc4-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb/client: fix typo: GlobalMid_Sem -> GlobalMid_Lock
smb: client: ignore unhandled reparse tags
smb3: fix problem unloading module due to leaked refcount on shutdown
smb3: fix broken cached reads when posix locks
- a tweak to uinput interface to reject requests with abnormally large
number of slots. 100 slots/contacts should be enough for real devices
- support for FocalTech FT8201 added to the edt-ft5x06 driver
- tweaks to i8042 to handle more devices that have issue with its
emulation
- Synaptics touchpad switched to native SMbus/RMI mode on HP Elitebook
840 G2
- other minor fixes.
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Merge tag 'input-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a tweak to uinput interface to reject requests with abnormally large
number of slots. 100 slots/contacts should be enough for real devices
- support for FocalTech FT8201 added to the edt-ft5x06 driver
- tweaks to i8042 to handle more devices that have issue with its
emulation
- Synaptics touchpad switched to native SMbus/RMI mode on HP Elitebook
840 G2
- other minor fixes
* tag 'input-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: himax_hx83112b - fix incorrect size when reading product ID
Input: i8042 - use new forcenorestore quirk to replace old buggy quirk combination
Input: i8042 - add forcenorestore quirk to leave controller untouched even on s3
Input: i8042 - add Fujitsu Lifebook E756 to i8042 quirk table
Input: uinput - reject requests with unreasonable number of slots
Input: edt-ft5x06 - add support for FocalTech FT8201
dt-bindings: input: touchscreen: edt-ft5x06: Document FT8201 support
Input: adc-joystick - fix optional value handling
Input: synaptics - enable SMBus for HP Elitebook 840 G2
Input: ads7846 - ratelimit the spi_sync error message
msm:
- virtual plane fixes
- drop yuv on hw where not supported
- csc vs yuv format fix
- rotation fix
- fix fb cleanup on close
- reset phy before link training
- fix visual corruption at 4K
- fix NULL ptr crash on hotplug
- simplify debug macros
- sc7180 fix
- adreno firmware name error path fix
amdgpu:
- GFX10 firmware loading fix
- SDMA 5.2 fix
- Debugfs parameter validation fix
- eGPU hotplug fix
i915:
- fix HDCP timeouts
nouveau:
- fix SG_DEBUG crash
xe:
- Fix OA format masks which were breaking build with gcc-5
- Fix opregion leak (Lucas)
- Fix OA sysfs entry (Ashutosh)
- Fix VM dma-resv lock (Brost)
- Fix tile fini sequence (Brost)
- Prevent UAF around preempt fence (Auld)
- Fix DGFX display suspend/resume (Maarten)
- Many Xe/Xe2 critical workarounds (Auld, Ngai-Mint, Bommu, Tejas, Daniele)
- Fix devm/drmm issues (Daniele)
- Fix missing workqueue destroy in xe_gt_pagefault (Stuart)
- Drop HW fence pointer to HW fence ctx (Brost)
- Free job before xe_exec_queue_put (Brost)
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Merge tag 'drm-fixes-2024-08-24' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes. xe and msm are the major groups, with
amdgpu/i915/nouveau having smaller bits. xe has a bunch of hw
workaround fixes that were found to be missing, so that is why there
are a bunch of scattered fixes, and one larger one. But overall size
doesn't look too out of the ordinary.
msm:
- virtual plane fixes:
- drop yuv on hw where not supported
- csc vs yuv format fix
- rotation fix
- fix fb cleanup on close
- reset phy before link training
- fix visual corruption at 4K
- fix NULL ptr crash on hotplug
- simplify debug macros
- sc7180 fix
- adreno firmware name error path fix
amdgpu:
- GFX10 firmware loading fix
- SDMA 5.2 fix
- Debugfs parameter validation fix
- eGPU hotplug fix
i915:
- fix HDCP timeouts
nouveau:
- fix SG_DEBUG crash
xe:
- Fix OA format masks which were breaking build with gcc-5
- Fix opregion leak (Lucas)
- Fix OA sysfs entry (Ashutosh)
- Fix VM dma-resv lock (Brost)
- Fix tile fini sequence (Brost)
- Prevent UAF around preempt fence (Auld)
- Fix DGFX display suspend/resume (Maarten)
- Many Xe/Xe2 critical workarounds (Auld, Ngai-Mint, Bommu, Tejas, Daniele)
- Fix devm/drmm issues (Daniele)
- Fix missing workqueue destroy in xe_gt_pagefault (Stuart)
- Drop HW fence pointer to HW fence ctx (Brost)
- Free job before xe_exec_queue_put (Brost)"
* tag 'drm-fixes-2024-08-24' of https://gitlab.freedesktop.org/drm/kernel: (35 commits)
drm/xe: Free job before xe_exec_queue_put
drm/xe: Drop HW fence pointer to HW fence ctx
drm/xe: Fix missing workqueue destroy in xe_gt_pagefault
drm/amdgpu: fix eGPU hotplug regression
drm/amdgpu: Validate TA binary size
drm/amdgpu/sdma5.2: limit wptr workaround to sdma 5.2.1
drm/amdgpu: fixing rlc firmware loading failure issue
drm/xe/uc: Use devm to register cleanup that includes exec_queues
drm/xe: use devm instead of drmm for managed bo
drm/xe/xe2hpg: Add Wa_14021821874
drm/xe: fix WA 14018094691
drm/xe/xe2: Add Wa_15015404425
drm/xe/xe2: Make subsequent L2 flush sequential
drm/xe/xe2lpg: Extend workaround 14021402888
drm/xe/xe2lpm: Extend Wa_16021639441
drm/xe/bmg: implement Wa_16023588340
drm/xe/oa/uapi: Make bit masks unsigned
drm/xe/display: Make display suspend/resume work on discrete
drm/xe: prevent UAF around preempt fence
drm/xe: Fix tile fini sequence
...
Fix backlight control on a Dell All In One system where a backlight
controller board is attached to a UART port and the dell-uart-backlight
driver binds to it, but the backlight is actually controlled by other
means (Hans de Goede).
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Merge tag 'acpi-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix backlight control on a Dell All In One system where a backlight
controller board is attached to a UART port and the dell-uart
backlight driver binds to it, but the backlight is actually controlled
by other means (Hans de Goede)"
* tag 'acpi-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: video: Add backlight=native quirk for Dell OptiPlex 7760 AIO
platform/x86: dell-uart-backlight: Use acpi_video_get_backlight_type()
ACPI: video: Add Dell UART backlight controller detection
- Use IS_ERR() in checks of debugfs_create_dir() return value instead of
checking it against NULL in the thermal debug code (Yang Ruibin).
- Fix three OF node reference leaks in thermal_of (Krzysztof Kozlowski).
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Merge tag 'thermal-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix error handling in the thermal debug code and OF node
reference leaks in the thermal OF driver.
Specifics:
- Use IS_ERR() in checks of debugfs_create_dir() return value instead
of checking it against NULL in the thermal debug code (Yang Ruibin)
- Fix three OF node reference leaks in thermal_of (Krzysztof
Kozlowski)"
* tag 'thermal-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: of: Fix OF node leak in of_thermal_zone_find() error paths
thermal: of: Fix OF node leak in thermal_of_zone_register()
thermal: of: Fix OF node leak in thermal_of_trips_init() error path
thermal/debugfs: Fix the NULL vs IS_ERR() confusion in debugfs_create_dir()
A small collection of fixes here, all driver specific and none of them
too serious. For whatever reason runtime PM seems to have been causing
a bunch of issues recently.
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Merge tag 'spi-fix-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes here, all driver specific and none of them
too serious. For whatever reason runtime PM seems to have been causing
a bunch of issues recently"
* tag 'spi-fix-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: pxa2xx: Move PM runtime handling to the glue drivers
spi: pxa2xx: Do not override dev->platform_data on probe
spi: spi-fsl-lpspi: limit PRESCALE bit in TCR register
spi: spi-cadence-quadspi: Fix OSPI NOR failures during system resume
spi: zynqmp-gqspi: Scale timeout by data size
- request the wlan-enable GPIO "as-is" to fix an issue with the wifi
module being already powered up before linux boots
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Merge tag 'pwrseq-fixes-for-v6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull power sequencing fix from Bartosz Golaszewski:
- request the wlan-enable GPIO "as-is" to fix an issue with the wifi
module being already powered up before linux boots
* tag 'pwrseq-fixes-for-v6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
power: sequencing: request the WLAN enable GPIO as-is
- imx: Remove duplicated clocks for scu power domain
- imx: Wait for SSAR to complete power-on for i.MX93 power domain
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Merge tag 'pmdomain-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fixes from Ulf Hansson:
- imx: Remove duplicated clocks for scu power domain
- imx: Wait for SSAR to complete power-on for i.MX93 power domain
* tag 'pmdomain-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
pmdomain: imx: wait SSAR when i.MX93 power domain on
pmdomain: imx: scu-pd: Remove duplicated clocks
- Don't drop references on LPIs that weren't visited by the
vgic-debug iterator
- Cure lock ordering issue when unregistering vgic redistributors
- Fix for misaligned stage-2 mappings when VMs are backed by hugetlb
pages
- Treat SGI registers as UNDEFINED if a VM hasn't been configured for
GICv3
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Merge tag 'kvmarm-fixes-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into for-next/fixes
KVM/arm64 fixes for 6.11, round #2
- Don't drop references on LPIs that weren't visited by the
vgic-debug iterator
- Cure lock ordering issue when unregistering vgic redistributors
- Fix for misaligned stage-2 mappings when VMs are backed by hugetlb
pages
- Treat SGI registers as UNDEFINED if a VM hasn't been configured for
GICv3
* tag 'kvmarm-fixes-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm:
KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3
KVM: arm64: Ensure canonical IPA is hugepage-aligned when handling fault
KVM: arm64: vgic: Don't hold config_lock while unregistering redistributors
KVM: arm64: vgic-debug: Don't put unmarked LPIs
KVM: arm64: vgic: Hold config_lock while tearing down a CPU interface
KVM: selftests: arm64: Correct feature test for S1PIE in get-reg-list
KVM: arm64: Tidying up PAuth code in KVM
KVM: arm64: vgic-debug: Exit the iterator properly w/o LPI
KVM: arm64: Enforce dependency on an ARMv8.4-aware toolchain
docs: KVM: Fix register ID of SPSR_FIQ
KVM: arm64: vgic: fix unexpected unlock sparse warnings
KVM: arm64: fix kdoc warnings in W=1 builds
KVM: arm64: fix override-init warnings in W=1 builds
KVM: arm64: free kvm->arch.nested_mmus with kvfree()
- Fix the max segment size and max number of segments supported by the
pata_macio driver to fix issues with BIO splitting leading to an
overflow of the adapter DMA table (from Michael).
- Related to the previous fix, change BUG_ON() calls for incorrect
command buffer segmentation into WARN_ON() and an error return (from
Michael).
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Merge tag 'ata-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Fix the max segment size and max number of segments supported by the
pata_macio driver to fix issues with BIO splitting leading to an
overflow of the adapter DMA table (from Michael)
- Related to the previous fix, change BUG_ON() calls for incorrect
command buffer segmentation into WARN_ON() and an error return (from
Michael)
* tag 'ata-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: pata_macio: Use WARN instead of BUG
ata: pata_macio: Fix DMA table overflow
Current release - regressions:
- virtio_net: avoid crash on resume - move netdev_tx_reset_queue()
call before RX napi enable
Current release - new code bugs:
- net/mlx5e: fix page leak and incorrect header release w/ HW GRO
Previous releases - regressions:
- udp: fix receiving fraglist GSO packets
- tcp: prevent refcount underflow due to concurrent execution
of tcp_sk_exit_batch()
Previous releases - always broken:
- ipv6: fix possible UAF when incrementing error counters on output
- ip6: tunnel: prevent merging of packets with different L2
- mptcp: pm: fix IDs not being reusable
- bonding: fix potential crashes in IPsec offload handling
- Bluetooth: HCI:
- MGMT: add error handling to pair_device() to avoid a crash
- invert LE State quirk to be opt-out rather then opt-in
- fix LE quote calculation
- drv: dsa: VLAN fixes for Ocelot driver
- drv: igb: cope with large MAX_SKB_FRAGS Kconfig settings
- drv: ice: fi Rx data path on architectures with PAGE_SIZE >= 8192
Misc:
- netpoll: do not export netpoll_poll_[disable|enable]()
- MAINTAINERS: update the list of networking headers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.11-rc5' of 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:
- virtio_net: avoid crash on resume - move netdev_tx_reset_queue()
call before RX napi enable
Current release - new code bugs:
- net/mlx5e: fix page leak and incorrect header release w/ HW GRO
Previous releases - regressions:
- udp: fix receiving fraglist GSO packets
- tcp: prevent refcount underflow due to concurrent execution of
tcp_sk_exit_batch()
Previous releases - always broken:
- ipv6: fix possible UAF when incrementing error counters on output
- ip6: tunnel: prevent merging of packets with different L2
- mptcp: pm: fix IDs not being reusable
- bonding: fix potential crashes in IPsec offload handling
- Bluetooth: HCI:
- MGMT: add error handling to pair_device() to avoid a crash
- invert LE State quirk to be opt-out rather then opt-in
- fix LE quote calculation
- drv: dsa: VLAN fixes for Ocelot driver
- drv: igb: cope with large MAX_SKB_FRAGS Kconfig settings
- drv: ice: fi Rx data path on architectures with PAGE_SIZE >= 8192
Misc:
- netpoll: do not export netpoll_poll_[disable|enable]()
- MAINTAINERS: update the list of networking headers"
* tag 'net-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (82 commits)
s390/iucv: Fix vargs handling in iucv_alloc_device()
net: ovs: fix ovs_drop_reasons error
net: xilinx: axienet: Fix dangling multicast addresses
net: xilinx: axienet: Always disable promiscuous mode
MAINTAINERS: Mark JME Network Driver as Odd Fixes
MAINTAINERS: Add header files to NETWORKING sections
MAINTAINERS: Add limited globs for Networking headers
MAINTAINERS: Add net_tstamp.h to SOCKET TIMESTAMPING section
MAINTAINERS: Add sonet.h to ATM section of MAINTAINERS
octeontx2-af: Fix CPT AF register offset calculation
net: phy: realtek: Fix setting of PHY LEDs Mode B bit on RTL8211F
net: ngbe: Fix phy mode set to external phy
netfilter: flowtable: validate vlan header
bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
ipv6: prevent possible UAF in ip6_xmit()
ipv6: fix possible UAF in ip6_finish_output2()
ipv6: prevent UAF in ip6_send_skb()
netpoll: do not export netpoll_poll_[disable|enable]()
selftests: mlxsw: ethtool_lanes: Source ethtool lib from correct path
udp: fix receiving fraglist GSO packets
...
If the call to nfs_delegation_grab_inode() fails, we will not have
dropped any locks that require us to rescan the list.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
