Use the is_leap_year() helper from rtc.h instead of
writing it by hand
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Similar to IPIP, introduce specific selftest for IP6IP6 flowtable SW
acceleration in nft_flowtable.sh
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Introduce sw acceleration for tx path of IP6IP6 tunnels relying on the
netfilter flowtable infrastructure.
IP6IP6 tx sw acceleration can be tested running the following scenario
where the traffic is forwarded between two NICs (eth0 and eth1) and an
IP6IP6 tunnel is used to access a remote site (using eth1 as the underlay
device):
ETH0 -- TUN0 <==> ETH1 -- [IP network] -- TUN1 (2001:db8:3::2)
$ip addr show
6: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:00:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet6 2001:db8:1::2/64 scope global nodad
valid_lft forever preferred_lft forever
7: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:11:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet6 2001:db8:2::1/64 scope global nodad
valid_lft forever preferred_lft forever
8: tun0@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1480 qdisc noqueue state UNKNOWN group default qlen 1000
link/tunnel6 2001:db8:2::1 peer 2001:db8:2::2 permaddr ce9c:2940:7dcc::
inet6 2002:db8:1::1/64 scope global nodad
valid_lft forever preferred_lft forever
$ip -6 route show
2001:db8:1::/64 dev eth0 proto kernel metric 256 pref medium
2001:db8:2::/64 dev eth1 proto kernel metric 256 pref medium
2002:db8:1::/64 dev tun0 proto kernel metric 256 pref medium
default via 2002:db8:1::2 dev tun0 metric 1024 pref medium
$nft list ruleset
table inet filter {
flowtable ft {
hook ingress priority filter
devices = { eth0, eth1 }
}
chain forward {
type filter hook forward priority filter; policy accept;
meta l4proto { tcp, udp } flow add @ft
}
}
Reproducing the scenario described above using veths I got the following
results:
- TCP stream received from the IPIP tunnel:
- net-next: (baseline) ~93Gbps
- net-next + IP6IP6 flowtbale support: ~98Gbps
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Introduce sw acceleration for rx path of IP6IP6 tunnels relying on the
netfilter flowtable infrastructure. Subsequent patches will add sw
acceleration for IP6IP6 tunnels tx path.
IP6IP6 rx sw acceleration can be tested running the following scenario
where the traffic is forwarded between two NICs (eth0 and eth1) and an
IP6IP6 tunnel is used to access a remote site (using eth1 as the underlay
device):
ETH0 -- TUN0 <==> ETH1 -- [IP network] -- TUN1 (2001:db8:3::2)
$ip addr show
6: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:00:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet6 2001:db8:1::2/64 scope global nodad
valid_lft forever preferred_lft forever
7: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:11:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet6 2001:db8:2::1/64 scope global nodad
valid_lft forever preferred_lft forever
8: tun0@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1480 qdisc noqueue state UNKNOWN group default qlen 1000
link/tunnel6 2001:db8:2::1 peer 2001:db8:2::2 permaddr ce9c:2940:7dcc::
inet6 2002:db8:1::1/64 scope global nodad
valid_lft forever preferred_lft forever
$ip -6 route show
2001:db8:1::/64 dev eth0 proto kernel metric 256 pref medium
2001:db8:2::/64 dev eth1 proto kernel metric 256 pref medium
2002:db8:1::/64 dev tun0 proto kernel metric 256 pref medium
default via 2002:db8:1::2 dev tun0 metric 1024 pref medium
$nft list ruleset
table inet filter {
flowtable ft {
hook ingress priority filter
devices = { eth0, eth1 }
}
chain forward {
type filter hook forward priority filter; policy accept;
meta l4proto { tcp, udp } flow add @ft
}
}
Reproducing the scenario described above using veths I got the following
results:
- TCP stream received from the IPIP tunnel:
- net-next: (baseline) ~ 81Gbps
- net-next + IP6IP6 flowtbale support: ~112Gbps
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Add tunnel hdr_size and tunnel proto fields in nf_flowtable_ctx struct
in order to store IP tunnel header size and protocol used during IPIP
and IP6IP6 tunnel sw offloading decapsulation and avoid recomputing them
during tunnel header pop since this is constant for IPv6.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Rely on nf_flowtable_ctx struct pointer in nf_flow_ip4_tunnel_proto and
nf_flow_skb_encap_protocol routine signature. This is a preliminary patch
to introduce IP6IP6 flowtable acceleration since nf_flowtable_ctx will
be used to store IP6IP6 tunnel info.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
This adds a single change, enabling to compile the
MediaTek HDMIv2 driver as module.
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Merge tag 'mtk-defconfig-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/defconfig
MediaTek defconfig updates
This adds a single change, enabling to compile the
MediaTek HDMIv2 driver as module.
* tag 'mtk-defconfig-for-v6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux:
arm64: defconfig: Enable Mediatek HDMIv2 driver
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Extend the existing Tegra186 GPIO controller driver with support for the
GPIO controller found on Tegra264.
Use the "wakeup-parent" phandle from the GPIO device tree node to
ensure the GPIO driver associates with the intended PMC device.
Relying only on compatible-based lookup can select an unexpected
PMC node, so fall back to compatible-based lookup when the phandle
is not present.
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/20260128085114.1137725-2-pshete@nvidia.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Extend the existing Tegra186 GPIO controller device tree bindings with
support for the GPIO controller found on Tegra264. The number of pins
is slightly different, but the programming model remains the same.
Add a new header, include/dt-bindings/gpio/nvidia,tegra264-gpio.h,
that defines port IDs as well as the TEGRA264_MAIN_GPIO() helper,
both of which are used in conjunction to create a unique specifier
for each pin.
On Tegra, GPIO wake events are latched and routed via the PMC.
Document the standard DT property, wakeup-parent, which is a phandle to
the PMC interrupt controller that provides the parent wake interrupt
domain for the GPIO controller. If the property is absent the driver
falls back to a compatible-based lookup.
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260128085114.1137725-1-pshete@nvidia.com
[Bartosz: fixed whitespace errors]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
A number of stat items related to cpu slabs became unused, remove them.
Two of those were ALLOC_FASTPATH and FREE_FASTPATH. But instead of
removing those, use them instead of ALLOC_PCS and FREE_PCS, since
sheaves are the new (and only) fastpaths, Remove the recently added
_PCS variants instead.
Change where FREE_SLOWPATH is counted so that it only counts freeing of
objects by slab users that (for whatever reason) do not go to a percpu
sheaf, and not all (including internal) callers of __slab_free(). Thus
sheaf flushing (already counted by SHEAF_FLUSH) does not affect
FREE_SLOWPATH anymore. This matches how ALLOC_SLOWPATH doesn't count
sheaf refills (counted by SHEAF_REFILL).
Reviewed-by: Hao Li <hao.li@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Enable the clock driver support for SpacemiT K3 SoC, configure it as
built-in by default, but users should be able to change it as kernel
module if needed.
Signed-off-by: Yixun Lan <dlan@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260128-sitter-crazily-184c1a7606db@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The cpu slabs and their deactivations were removed, so remove the unused
stat items. Weirdly enough the values were also used to control
__add_partial() adding to head or tail of the list, so replace that with
a new enum add_mode, which is cleaner.
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Currently slabs are only frozen after consistency checks failed. This
can happen only in caches with debugging enabled, and those use
free_to_partial_list() for freeing. The non-debug operation of
__slab_free() can thus stop considering the frozen field, and we can
remove the FREE_FROZEN stat.
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
The changes related to sheaves made the description of locking and other
details outdated. Update it to reflect current state.
Also add a new copyright line due to major changes.
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
__refill_objects() currently only attempts to get partial slabs from the
local node and then allocates new slab(s). Expand it to trying also
other nodes while observing the remote node defrag ratio, similarly to
get_any_partial().
This will prevent allocating new slabs on a node while other nodes have
many free slabs. It does mean sheaves will contain non-local objects in
that case. Allocations that care about specific node will still be
served appropriately, but might get a slowpath allocation.
Like get_any_partial() we do observe cpuset_zone_allowed(), although we
might be refilling a sheaf that will be then used from a different
allocation context.
We can also use the resulting refill_objects() in
__kmem_cache_alloc_bulk() for non-debug caches. This means
kmem_cache_alloc_bulk() will get better performance when sheaves are
exhausted. kmem_cache_alloc_bulk() cannot indicate a preferred node so
it's compatible with sheaves refill in preferring the local node.
Its users also have gfp flags that allow spinning, so document that
as a requirement.
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
The macros slub_get_cpu_ptr()/slub_put_cpu_ptr() are now unused, remove
them. USE_LOCKLESS_FAST_PATH() has lost its true meaning with the code
being removed. The only remaining usage is in fact testing whether we
can assert irqs disabled, because spin_lock_irqsave() only does that on
!RT. Test for CONFIG_PREEMPT_RT instead.
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
The cpu slab is not used anymore for allocation or freeing, the
remaining code is for flushing, but it's effectively dead. Remove the
whole struct kmem_cache_cpu, the flushing code and other orphaned
functions.
The remaining used field of kmem_cache_cpu is the stat array with
CONFIG_SLUB_STATS. Put it instead in a new struct kmem_cache_stats.
In struct kmem_cache, the field is cpu_stats and placed near the
end of the struct.
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
The kmalloc_nolock() implementation has several complications and
restrictions due to SLUB's cpu slab locking, lockless fastpath and
PREEMPT_RT differences. With cpu slab usage removed, we can simplify
things:
- relax the PREEMPT_RT context checks as they were before commit
99a3e3a1cf ("slab: fix kmalloc_nolock() context check for
PREEMPT_RT") and also reference the explanation comment in the page
allocator
- the local_lock_cpu_slab() macros became unused, remove them
- we no longer need to set up lockdep classes on PREEMPT_RT
- we no longer need to annotate ___slab_alloc as NOKPROBE_SYMBOL
since there's no lockless cpu freelist manipulation anymore
- __slab_alloc_node() can be called from kmalloc_nolock_noprof()
unconditionally. It can also no longer return EBUSY. But trylock
failures can still happen so retry with the larger bucket if the
allocation fails for any reason.
Note that we still need __CMPXCHG_DOUBLE, because while it was removed
we don't use cmpxchg16b on cpu freelist anymore, we still use it on
slab freelist, and the alternative is slab_lock() which can be
interrupted by a nmi. Clarify the comment to mention it specifically.
Acked-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
There are no more cpu slabs so we don't need their deferred
deactivation. The function is now only used from places where we
allocate a new slab but then can't spin on node list_lock to put it on
the partial list. Instead of the deferred action we can free it directly
via __free_slab(), we just need to tell it to use _nolock() freeing of
the underlying pages and take care of the accounting.
Since free_frozen_pages_nolock() variant does not yet exist for code
outside of the page allocator, create it as a trivial wrapper for
__free_frozen_pages(..., FPI_TRYLOCK).
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
We have removed cpu slab usage from allocation paths. Now remove
do_slab_free() which was freeing objects to the cpu slab when
the object belonged to it. Instead call __slab_free() directly,
which was previously the fallback.
This simplifies kfree_nolock() - when freeing to percpu sheaf
fails, we can call defer_free() directly.
Also remove functions that became unused.
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
We have removed the partial slab usage from allocation paths. Now remove
the whole config option and associated code.
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
We now rely on sheaves as the percpu caching layer and can refill them
directly from partial or newly allocated slabs. Start removing the cpu
(partial) slabs code, first from allocation paths.
This means that any allocation not satisfied from percpu sheaves will
end up in ___slab_alloc(), where we remove the usage of cpu (partial)
slabs, so it will only perform get_partial() or new_slab(). In the
latter case we reuse alloc_from_new_slab() (when we don't use
the debug/tiny alloc_single_from_new_slab() variant).
In get_partial_node() we used to return a slab for freezing as the cpu
slab and to refill the partial slab. Now we only want to return a single
object and leave the slab on the list (unless it became full). We can't
simply reuse alloc_single_from_partial() as that assumes freeing uses
free_to_partial_list(). Instead we need to use __slab_update_freelist()
to work properly against a racing __slab_free().
To reflect the new purpose of get_partial() functions, rename them to
get_from_partial(), get_from_partial_node(), and get_from_any_partial().
The rest of the changes is removing functions that no longer have any
callers.
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
At this point we have sheaves enabled for all caches, but their refill
is done via __kmem_cache_alloc_bulk() which relies on cpu (partial)
slabs - now a redundant caching layer that we are about to remove.
The refill will thus be done from slabs on the node partial list.
Introduce new functions that can do that in an optimized way as it's
easier than modifying the __kmem_cache_alloc_bulk() call chain.
Introduce struct partial_bulk_context, a variant of struct
partial_context that can return a list of slabs from the partial list
with the sum of free objects in them within the requested min and max.
Introduce get_partial_node_bulk() that removes the slabs from freelist
and returns them in the list. There is a racy read of slab->counters
so make sure the non-atomic write in __update_freelist_slow() is not
tearing.
Introduce get_freelist_nofreeze() which grabs the freelist without
freezing the slab.
Introduce alloc_from_new_slab() which can allocate multiple objects from
a newly allocated slab where we don't need to synchronize with freeing.
In some aspects it's similar to alloc_single_from_new_slab() but assumes
the cache is a non-debug one so it can avoid some actions. It supports
the allow_spin parameter, which we always set true here, but the
followup change will reuse the function in a context where it may be
false.
Introduce __refill_objects() that uses the functions above to fill an
array of objects. It has to handle the possibility that the slabs will
contain more objects that were requested, due to concurrent freeing of
objects to those slabs. When no more slabs on partial lists are
available, it will allocate new slabs. It is intended to be only used
in context where spinning is allowed, so add a WARN_ON_ONCE check there.
Finally, switch refill_sheaf() to use __refill_objects(). Sheaves are
only refilled from contexts that allow spinning, or even blocking.
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Enable sheaves for kmalloc caches. For other types than KMALLOC_NORMAL,
we can simply allow them in calculate_sizes() as they are created later
than KMALLOC_NORMAL caches and can allocate sheaves and barns from
those.
For KMALLOC_NORMAL caches we perform additional step after first
creating them without sheaves. Then bootstrap_cache_sheaves() simply
allocates and initializes barns and sheaves and finally sets
s->sheaf_capacity to make them actually used.
Afterwards the only caches left without sheaves (unless SLUB_TINY or
debugging is enabled) are kmem_cache and kmem_cache_node. These are only
used when creating or destroying other kmem_caches. Thus they are not
performance critical and we can simply leave it that way.
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Before we enable percpu sheaves for kmalloc caches, we need to make sure
kmalloc_nolock() and kfree_nolock() will continue working properly and
not spin when not allowed to.
Percpu sheaves themselves use local_trylock() so they are already
compatible. We just need to be careful with the barn->lock spin_lock.
Pass a new allow_spin parameter where necessary to use
spin_trylock_irqsave().
In kmalloc_nolock_noprof() we can now attempt alloc_from_pcs() safely,
for now it will always fail until we enable sheaves for kmalloc caches
next. Similarly in kfree_nolock() we can attempt free_to_pcs().
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Until now, kmem_cache->cpu_sheaves was !NULL only for caches with
sheaves enabled. Since we want to enable them for almost all caches,
it's suboptimal to test the pointer in the fast paths, so instead
allocate it for all caches in do_kmem_cache_create(). Instead of testing
the cpu_sheaves pointer to recognize caches (yet) without sheaves, test
kmem_cache->sheaf_capacity for being 0, where needed, using a new
cache_has_sheaves() helper.
However, for the fast paths sake we also assume that the main sheaf
always exists (pcs->main is !NULL), and during bootstrap we cannot
allocate sheaves yet.
Solve this by introducing a single static bootstrap_sheaf that's
assigned as pcs->main during bootstrap. It has a size of 0, so during
allocations, the fast path will find it's empty. Since the size of 0
matches sheaf_capacity of 0, the freeing fast paths will find it's
"full". In the slow path handlers, we use cache_has_sheaves() to
recognize that the cache doesn't (yet) have real sheaves, and fall back.
Thus sharing the single bootstrap sheaf like this for multiple caches
and cpus is safe.
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Avoid even accidental use of display details by dropping the include of
intel_display_types.h. We'll still have to include intel_dpll_mgr.h for
the DPLL IDs, but at least the surface is smaller.
Add duplicate defines of pipe_name() and port_name() to avoid depending
on display. They're trivial enough to be acceptable.
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/2fa5677f5ff3dbeaa75a7984d74fb9855a4ba3d2.1769612208.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Move enum aux_ch from intel_display.h to intel_display_limits.h to avoid
having to include the former from gvt. This currently happens via
intel_display_types.h, which we can also drop in favour of
intel_display_limits.h in intel_gvt_mmio_table.c.
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/86ccc91ee1ca96fa145b750e2f1935918ec288d0.1769612208.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
In the first step to replace cpu (partial) slabs with sheaves, enable
sheaves for almost all caches. Treat args->sheaf_capacity as a minimum,
and calculate sheaf capacity with a formula that roughly follows the
formula for number of objects in cpu partial slabs in set_cpu_partial().
This should achieve roughly similar contention on the barn spin lock as
there's currently for node list_lock without sheaves, to make
benchmarking results comparable. It can be further tuned later.
Don't enable sheaves for bootstrap caches as that wouldn't work. In
order to recognize them by SLAB_NO_OBJ_EXT, make sure the flag exists
even for !CONFIG_SLAB_OBJ_EXT.
This limitation will be lifted for kmalloc caches after the necessary
bootstrapping changes.
Also do not enable sheaves for SLAB_NOLEAKTRACE caches to avoid
recursion with kmemleak tracking (thanks to Breno Leitao).
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Hao Li <hao.li@linux.dev>
Tested-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Tested-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
- A couple of changes from Alexander Stein and Andreas Kemnade to enable
SND_SOC_FSL_ASOC_CARD and REGULATOR_FP9931 in imx_v6_v7_defconfig
- A change from Dmitry Baryshkov to enable DA9052 and MC13XXX in
multi_v7_defconfig
- A change from Josua Mayer to refresh imx_v4_v5_defconfig by removing
stale options and adding missing ones
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Merge tag 'imx-defconfig-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/defconfig
i.MX defconfig changes for 6.20:
- A couple of changes from Alexander Stein and Andreas Kemnade to enable
SND_SOC_FSL_ASOC_CARD and REGULATOR_FP9931 in imx_v6_v7_defconfig
- A change from Dmitry Baryshkov to enable DA9052 and MC13XXX in
multi_v7_defconfig
- A change from Josua Mayer to refresh imx_v4_v5_defconfig by removing
stale options and adding missing ones
* tag 'imx-defconfig-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v4_v5_defconfig: update for v6.19-rc1
ARM: imx_v6_v7_defconfig: enable EPD regulator needed for Kobo Clara 2e
ARM: imx_v6_v7_defconfig: Configure CONFIG_SND_SOC_FSL_ASOC_CARD as module
ARM: multi_v7_defconfig: enable DA9052 and MC13XXX
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Enable most drivers required for Apple Silicon as module inside
defconfig
- Enable the power-domain driver when ARCH_APPLE and PM is selected
since it's critical for booting these systems
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Merge tag 'apple-soc-defconfig-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux into soc/defconfig
Apple SoC defconfig update for 6.20
- Enable most drivers required for Apple Silicon as module inside
defconfig
- Enable the power-domain driver when ARCH_APPLE and PM is selected
since it's critical for booting these systems
* tag 'apple-soc-defconfig-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux:
arm64: defconfig: Enable Apple Silicon drivers
arm64: select APPLE_PMGR_PWRSTATE for ARCH_APPLE
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Enable support for the Renesas RZ/G3E USB3 PHY and RZ/G3S PCIe
drivers in the ARM64 defconfig,
- Refresh the ARM SH-Mobile defconfig for v6.19-rc1.
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Merge tag 'renesas-arm-defconfig-for-v6.20-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into soc/defconfig
Renesas ARM defconfig updates for v6.20
- Enable support for the Renesas RZ/G3E USB3 PHY and RZ/G3S PCIe
drivers in the ARM64 defconfig,
- Refresh the ARM SH-Mobile defconfig for v6.19-rc1.
* tag 'renesas-arm-defconfig-for-v6.20-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
ARM: shmobile: defconfig: Refresh for v6.19-rc1
arm64: defconfig: Enable PCIe for the Renesas RZ/G3S SoC
arm64: defconfig: Enable RZ/G3E USB3 PHY driver
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The COMPAT_UTS_MACHINE for riscv was incorrectly defined as "riscv".
Change it to "riscv32" to reflect the correct 32-bit compat name.
Fixes: 06d0e37236 ("riscv: compat: Add basic compat data type implementation")
Cc: stable@vger.kernel.org
Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
Reviewed-by: Guo Ren (Alibaba Damo Academy) <guoren@kernel.org>
Link: https://patch.msgid.link/20260127190711.2264664-1-gaohan@iscas.ac.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Since multi_v7_defconfig is meant to be the generic defconfig, many
users are not going to be experts and it is counterintuitive to have
CONFIG_EXPERT enabled.
This change has a couple of side-effects:
- CONFIG_NAMESPACES is enabled by default. This adds about 0.2% of
.text, but is already enabled in many board specific configs, and
apparently a requirement for systemd, so this seems like a useful
change.
- CONFIG_DEBUG_MEMORY_INIT is enabled now, adding a tiny bit
of code in the inittext section
- CONFIG_RFKILL, CONFIG_MEDIA_SUPPORT_FILTER and various CONFIG_HID
driver defaults change, so these have to be listed explicitly to
maintain the previous behavior
- CONFIG_SERIAL_SH_SCI_NR_UARTS=20 changes to the default value
of 18, which I understand to be sufficient for any buard, even
if all UARTS are enabled at the same time
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20260112153255.795553-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Use io_wait_event_killable() to ensure that time spent waiting for 9P
RPC transactions is accounted as IO wait time.
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Message-ID: <b8601271263011203fa34eada2e8ac21d9f679e5.1769179462.git.repk@triplefau.lt>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Add io_wait_event_killable(), a variant of wait_event_killable() that
uses io_schedule() instead of schedule(). This is to be used in
situation where waiting time is to be accounted as IO wait time.
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Message-ID: <1b2870001ecd34fe6c05be2ddfefb3c798b11701.1769179462.git.repk@triplefau.lt>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Matthieu Baerts says:
====================
mptcp: avoid dup NL events and propagate error
Here are two fixes affecting the MPTCP Netlink events with their tests:
- Patches 1 & 2: a subflow closed NL event was visible multiple times in
some specific conditions. A fix for v5.12.
- Patches 3 & 4: subflow closed NL events never contained the error
code, even when expected. A fix for v5.11.
Plus an extra fix:
- Patch 5: fix a false positive with the "signal addresses race test"
subtest when validating the MPTCP Join selftest on a v5.15.y stable
kernel.
====================
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-0-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When running this mptcp_join.sh selftest on older kernel versions not
supporting local endpoints tracking, this test fails because 3 MP_JOIN
ACKs have been received, while only 2 were expected.
It is not clear why only 2 MP_JOIN ACKs were expected on old kernel
versions, while 3 MP_JOIN SYN and SYN+ACK were expected. When testing on
the v5.15.197 kernel, 3 MP_JOIN ACKs are seen, which is also what is
expected in the selftests included in this kernel version, see commit
f4480eaad4 ("selftests: mptcp: add missing join check").
Switch the expected MP_JOIN ACKs to 3. While at it, move this
chk_join_nr helper out of the special condition for older kernel
versions as it is now the same as with more recent ones. Also, invert
the condition to be more logical: what's expected on newer kernel
versions having such helper first.
Fixes: d4c81bbb86 ("selftests: mptcp: join: support local endpoint being tracked or not")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-5-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This validates the previous commit: subflow closed events should contain
an error field when a subflow got closed with an error, e.g. reset or
timeout.
For this test, the chk_evt_nr helper has been extended to check
attributes in the matched events.
In this test, the 2 subflow closed events should have an error.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 15cc104533 ("mptcp: deliver ssk errors to msk")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-4-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some subflow socket errors need to be reported to the MPTCP socket: the
initial subflow connect (MP_CAPABLE), and the ones from the fallback
sockets. The others are not propagated.
The issue is that sock_error() was used to retrieve the error, which was
also resetting the sk_err field. Because of that, when notifying the
userspace about subflow close events later on from the MPTCP worker, the
ssk->sk_err field was always 0.
Now, the error (sk_err) is only reset when propagating it to the msk.
Fixes: 15cc104533 ("mptcp: deliver ssk errors to msk")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-3-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This validates the previous commit: subflow closed events are re-sent
with less info when the initial subflow is disconnected after an error
and each time a subflow is closed after that.
In this new test, the userspace PM is involved because that's how it was
discovered, but it is not specific to it. The initial subflow is
terminated with a RESET, and that will cause the subflow disconnect.
Then, a new subflow is initiated, but also got rejected, which cause a
second subflow closed event, but not a third one.
While at it, in case of failure to get the expected amount of events,
the events are printed.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: d82809b6c5 ("mptcp: avoid duplicated SUB_CLOSED events")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-2-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In case of subflow disconnect(), which can also happen with the first
subflow in case of errors like timeout or reset, mptcp_subflow_ctx_reset
will reset most fields from the mptcp_subflow_context structure,
including close_event_done. Then, when another subflow is closed, yet
another SUB_CLOSED event for the disconnected initial subflow is sent.
Because of the previous reset, there are no source address and
destination port.
A solution is then to also check the subflow's local id: it shouldn't be
negative anyway.
Another solution would be not to reset subflow->close_event_done at
disconnect time, but when reused. But then, probably the whole reset
could be done when being reused. Let's not change this logic, similar
to TCP with tcp_disconnect().
Fixes: d82809b6c5 ("mptcp: avoid duplicated SUB_CLOSED events")
Cc: stable@vger.kernel.org
Reported-by: Marco Angaroni <marco.angaroni@italtel.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/603
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260127-net-mptcp-dup-nl-events-v1-1-7f71e1bc4feb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tariq Toukan says:
====================
mlx5 misc fixes 2026-01-27 [part]
This patchset provides misc bug fixes from the team
to the mlx5 core and Eth drivers.
====================
Link: https://patch.msgid.link/1769503961-124173-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit a5e400a985 ("net/mlx5e: Honor user choice of IPsec replay
window size") introduced logic to setup the ESN replay window size.
This logic is only valid for packet offload.
However, the check to skip this block only covered outbound offloads.
It was not skipped for crypto offload, causing it to fall through to
the new switch statement and trigger its WARN_ON default case (for
instance, if a window larger than 256 bits was configured).
Fix this by amending the condition to also skip the replay window
setup if the offload type is not XFRM_DEV_OFFLOAD_PACKET.
Fixes: a5e400a985 ("net/mlx5e: Honor user choice of IPsec replay window size")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1769503961-124173-5-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
