On Wed, Nov 13, 2024 at 09:45:22AM +0800, Jason Wang wrote:
> On Mon, Nov 11, 2024 at 4:58 PM Dragos Tatulea wrote:
> >
> >
> >
> > On 21.10.24 15:40, Dragos Tatulea wrote:
> > > Here are 2 fixes from Si-Wei:
> > > - The first one is an important fix that has to be applied as far
> > > back as p
On Mon, Oct 21, 2024 at 04:40:40PM +0300, Dragos Tatulea wrote:
> From: Si-Wei Liu
>
> The starting iova address to iterate iotlb map entry within a range
> was set to an irrelevant value when passing to the itree_next()
> iterator, although luckily it doesn't affect the outcome of finding
> out
On Tue, 29 Oct 2024 at 06:43, Rae Moar wrote:
>
> From: David Gow
>
> Allow only printing the summary at the end of a test run, rather than all
> individual test results. This summary will list a few failing tests if
> there are any.
>
> To use:
>
> ./tools/testing/kunit/kunit.py run --summary
>
On Tue, Nov 12, 2024 at 10:50:35AM +0530, Suraj Sonawane wrote:
> Fix an issue detected by syzbot with KASAN:
>
> BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/
> core.c:416 [inline]
> BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0
> drivers/acpi/nfit/core.c:
On Tue, Nov 12, 2024 at 10:50:35AM +0530, Suraj Sonawane wrote:
> Fix an issue detected by syzbot with KASAN:
>
> BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/
> core.c:416 [inline]
> BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0
> drivers/acpi/nfit/core.c:
Hi Petr,
Please see my inline comments, many thanks.
BR
Song
在 2024/11/12 20:56, Petr Pavlu 写道:
On 11/10/24 12:42, Song Chen wrote:
Sometimes when kernel calls request_module to load a module
into kernel space, it doesn't pass the module name appropriately,
and request_module doesn't verify
On 11/13/2024 3:07 AM, Frederic Weisbecker wrote:
> Le Mon, Nov 11, 2024 at 01:07:16PM +0530, Neeraj Upadhyay a écrit :
>>
>>> diff --git a/kernel/rcu/tree_nocb.h b/kernel/rcu/tree_nocb.h
>>> index 16865475120b..2605dd234a13 100644
>>> --- a/kernel/rcu/tree_nocb.h
>>> +++ b/kernel/rcu/tree_nocb.
>>>
>>> static int srcu_torture_read_lock(void)
>>> {
>>> - if (cur_ops == &srcud_ops)
>>> - return srcu_read_lock_nmisafe(srcu_ctlp);
>>> - else
>>> - return srcu_read_lock(srcu_ctlp);
>>> + int idx;
>>> + int ret = 0;
>>> +
>>> + if ((reader_flavor & 0x1) || !(
Fix a typo in an email address.
Reported-by: Konstantin Ryabitsev
Closes:
https://lore.kernel.org/all/20240925-rational-succinct-vulture-cca9fb@lemur/T/
Signed-off-by: Alexey Makhalov
---
MAINTAINERS | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/MAINTAINERS b/MAINTA
On Tue, 12 Nov 2024 17:51:50 -0800 Daniel Xu wrote:
> > This won't match the output from your ethtool patch, because that
> > removes the colon. Probably want to wait until the patch is
> > finalised and then write a regex that matches both versions.
>
> Argh, I meant to have wildcards here.
Hi Jakub,
On Tue, Nov 12, 2024, at 5:44 PM, Jakub Kicinski wrote:
> On Mon, 11 Nov 2024 19:23:31 -0700 Daniel Xu wrote:
>> Extend the rss_ctx test suite to test that an ntuple action that
>> redirects to an RSS context contains that information in `ethtool -n`.
>> Otherwise the output from ethtool
On Wed, Nov 13, 2024 at 5:46 AM Michael S. Tsirkin wrote:
>
> On Mon, Nov 11, 2024 at 04:36:52PM +0800, Jason Wang wrote:
> > On Mon, Nov 11, 2024 at 3:30 PM Michael S. Tsirkin wrote:
> > >
> > > On Mon, Nov 11, 2024 at 10:55:38AM +0800, Jason Wang wrote:
> > > > There's no need to sync DMA for C
Hi Ed,
On Tue, Nov 12, 2024, at 3:10 AM, Edward Cree wrote:
> On 12/11/2024 02:23, Daniel Xu wrote:
>> Extend the rss_ctx test suite to test that an ntuple action that
>> redirects to an RSS context contains that information in `ethtool -n`.
>> Otherwise the output from ethtool is highly deceiving
On Mon, Nov 11, 2024 at 4:58 PM Dragos Tatulea wrote:
>
>
>
> On 21.10.24 15:40, Dragos Tatulea wrote:
> > Here are 2 fixes from Si-Wei:
> > - The first one is an important fix that has to be applied as far
> > back as possible (hence CC'ing linux-stable).
> > - The second is more of an improvem
On 12.11.2024 19:31, Sabrina Dubroca wrote:
2024-11-10, 15:38:27 +0200, Sergey Ryazanov wrote:
On 29.10.2024 12:47, Antonio Quartulli wrote:
An ovpn_peer object holds the whole status of a remote peer
(regardless whether it is a server or a client).
This includes status for crypto, tx/rx buffe
On Mon, 11 Nov 2024 19:23:31 -0700 Daniel Xu wrote:
> Extend the rss_ctx test suite to test that an ntuple action that
> redirects to an RSS context contains that information in `ethtool -n`.
> Otherwise the output from ethtool is highly deceiving. This test helps
> ensure drivers are compliant wit
The pull request you sent on Tue, 12 Nov 2024 18:30:37 -0500:
> https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/f1b785f4c7870c42330b35522c2514e39a1e28e7
Thank you!
--
Deet-doot-dot, I am a b
On 12.11.2024 18:47, Sabrina Dubroca wrote:
2024-11-09, 03:01:21 +0200, Sergey Ryazanov wrote:
On 29.10.2024 12:47, Antonio Quartulli wrote:
+/* When the OpenVPN protocol is ran in AEAD mode, use
+ * the OpenVPN packet ID as the AEAD nonce:
+ *
+ *0005 521c3b01 4308c041
+ *[seq # ]
On Thu, Nov 07, 2024 at 09:19:41PM +0200, Gediminas Repecka wrote:
> Fixed coding style issues reported by checkpatch script
> ---
A lot is wrong with this submission, given it's supposed to fix
checkpatch:
- no signature
- typo in subject
- not using direct voice (Fix, not Fixed)
pls fix and
The following changes since commit 83e445e64f48bdae3f25013e788fcf592f142576:
vdpa/mlx5: Fix error path during device add (2024-11-07 16:51:16 -0500)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
for you to fetch changes
On Tue, Nov 12, 2024 at 11:15:54AM +0100, Uwe Kleine-König wrote:
> Hello Andy, hello Aren,
>
> On Mon, Nov 11, 2024 at 11:44:51AM +0200, Andy Shevchenko wrote:
> > On Sun, Nov 10, 2024 at 04:34:30PM -0500, Aren wrote:
> > > On Sun, Nov 10, 2024 at 09:52:32PM +0200, Andy Shevchenko wrote:
> > > >
On Tue, Nov 12, 2024 at 09:56:20AM -0800, Sean Christopherson wrote:
> This likely needs to be addressed in whatever chunk of code is enforcing the
> namespaces. The s/-/_ behavior (and vice versa!) is *very* baked into the
> kernel
> at this point, e.g. parameqn() will happily parse dashes or u
On 11/12/2024 10:28 AM, Amit Vadhavana wrote:
> - Remove unnecessary `tctx` variable, use `ctx` directly.
> - Simplified code with no functional changes.
>
> Signed-off-by: Amit Vadhavana
Reviewed-by: Casey Schaufler
> ---
> tools/testing/selftests/lsm/lsm_set_self_attr_test.c | 7 +++
> 1
Setup the maple_node_cache with percpu sheaves of size 32 to hopefully
improve its performance. Change the single node rcu freeing in
ma_free_rcu() to use kfree_rcu() instead of the custom callback, which
allows the rcu_free sheaf batching to be used. Note there are other
users of mt_free_rcu() whe
On Mon, Nov 11, 2024 at 04:36:52PM +0800, Jason Wang wrote:
> On Mon, Nov 11, 2024 at 3:30 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Nov 11, 2024 at 10:55:38AM +0800, Jason Wang wrote:
> > > There's no need to sync DMA for CPU on mapping errors. So this patch
> > > skips the CPU sync in the err
Le Mon, Nov 11, 2024 at 01:07:16PM +0530, Neeraj Upadhyay a écrit :
>
> > diff --git a/kernel/rcu/tree_nocb.h b/kernel/rcu/tree_nocb.h
> > index 16865475120b..2605dd234a13 100644
> > --- a/kernel/rcu/tree_nocb.h
> > +++ b/kernel/rcu/tree_nocb.h
> > @@ -891,7 +891,18 @@ static void nocb_cb_wait(str
On Sat, Nov 09, 2024 at 11:35:37AM +0100, Christophe Leroy wrote:
> diff --git a/kernel/module/main.c b/kernel/module/main.c
> index 1bf4b0db291b..b603c9647e73 100644
> --- a/kernel/module/main.c
> +++ b/kernel/module/main.c
> @@ -2582,7 +2582,7 @@ static noinline int do_init_module(struct module *
On Tue, Nov 12, 2024, Peter Zijlstra wrote:
> On Mon, Nov 11, 2024 at 04:48:58PM -0800, Sean Christopherson wrote:
> > On Mon, Nov 11, 2024, Peter Zijlstra wrote:
> > > Hi!
> > >
> > > Implement a means for exports to be available only to an explicit list of
> > > named
> > > modules. By explicit
Jan Kara wrote:
[..]
> > I think we should go with that then. Should I send it as Suggested-by:
> > Dan or do you want to send it?
>
> I say go ahead and send it with Dan's suggested-by :)
Yeah, no concerns from me, and I can ack it when it comes out.
On Wed, 06 Nov 2024 17:07:51 +, Mark Brown wrote:
> We don't currently validate that we exit streaming mode and clear ZA when
> we enter a signal handler. Add simple checks for this in the SSVE and ZA
> tests.
>
>
Applied to arm64 (for-next/kselftest), thanks!
[1/1] kselftest/arm64: Check t
- Remove unnecessary `tctx` variable, use `ctx` directly.
- Simplified code with no functional changes.
Signed-off-by: Amit Vadhavana
---
tools/testing/selftests/lsm/lsm_set_self_attr_test.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/lsm/ls
On Fri, 08 Nov 2024 13:49:16 +, Catalin Marinas wrote:
> It looks like people started ignoring the compiler warnings (or even
> errors) when building the arm64-specific kselftests. The first three
> patches are printf() arguments adjustment. The last one adds
> ".arch_extension sme", otherwise
On Tue, Nov 12, 2024 at 10:12:40AM +0530, Neeraj Upadhyay wrote:
> On 10/15/2024 9:41 PM, Paul E. McKenney wrote:
> > This commit adds an rcutorture.reader_flavor parameter whose bits
> > correspond to reader flavors. For example, SRCU's readers are 0x1 for
> > normal and 0x2 for NMI-safe.
> >
>
2024-11-09, 03:01:21 +0200, Sergey Ryazanov wrote:
> On 29.10.2024 12:47, Antonio Quartulli wrote:
> > +/* When the OpenVPN protocol is ran in AEAD mode, use
> > + * the OpenVPN packet ID as the AEAD nonce:
> > + *
> > + *0005 521c3b01 4308c041
> > + *[seq # ] [ nonce_tail ]
> > + *
Instead of local_lock_irqsave(), use just get_cpu_ptr() (which only
disables preemption) and then set an active flag. If potential callers
include irq handler, the operation must use a trylock variant that bails
out if the flag is already set to active because we interrupted another
operation in pr
Hi,
This is a RFC to add an opt-in percpu array-based caching layer to SLUB.
The name "sheaf" was invented by Matthew so we don't call it magazine
like the original Bonwick paper. The per-NUMA-node cache of sheaves is
thus called "barn".
This may seem similar to the arrays in SLAB, but the main d
Use vmalloc_array() instead of vmalloc() to calculate the number of
bytes to allocate.
Reviewed-by: Jarkko Sakkinen
Acked-by: Kai Huang
Signed-off-by: Thorsten Blum
---
arch/x86/kernel/cpu/sgx/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/sgx/ma
On Tue, Nov 12, 2024 at 09:18:48AM -0600, Konstantin Shkolnyy wrote:
On 11/12/2024 02:58, Stefano Garzarella wrote:
On Thu, Nov 07, 2024 at 07:17:26PM -0600, Konstantin Shkolnyy wrote:
Replace setsockopt() calls with calls to functions that follow
setsockopt() with getsockopt() and check that t
The pull request you sent on Mon, 11 Nov 2024 08:50:50 -0500:
> https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/0ccd733ac99edc473aaee90c8f6adc346d82befb
Thank you!
--
Deet-doot-dot, I am a b
From: "Paul E. McKenney"
This commit creates a new srcu-lite option for the refscale.scale_type
module parameter that selects srcu_read_lock_lite() and
srcu_read_unlock_lite().
[ paulmck: Apply Dan Carpenter feedback. ]
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryik
On Tue, 12 Nov 2024 13:08:13 +, Mark Brown wrote:
> This series contains a bit of a grab bag of improvements to the floating
> point tests, mainly fp-ptrace. Globally over all the tests we start
> using defines from the generated sysregs (following the example of the
> KVM selftests) for SVCR,
From: "Paul E. McKenney"
This commit adds an rcutorture.reader_flavor parameter whose bits
correspond to reader flavors. For example, SRCU's readers are 0x1 for
normal and 0x2 for NMI-safe.
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryiko
Cc: Peter Zijlstra
Cc: Ken
2024-11-10, 15:38:27 +0200, Sergey Ryazanov wrote:
> On 29.10.2024 12:47, Antonio Quartulli wrote:
> > An ovpn_peer object holds the whole status of a remote peer
> > (regardless whether it is a server or a client).
> >
> > This includes status for crypto, tx/rx buffers, napi, etc.
> >
> > Only s
2024-11-11, 00:32:51 +0200, Sergey Ryazanov wrote:
> On 29.10.2024 12:47, Antonio Quartulli wrote:
> > +static void ovpn_encrypt_post(struct sk_buff *skb, int ret)
> > +{
> > + struct ovpn_peer *peer = ovpn_skb_cb(skb)->peer;
> > +
> > + if (unlikely(ret < 0))
> > + goto err;
> > +
>
On Fri, 08 Nov 2024 15:20:46 +, Mark Brown wrote:
> While some assemblers (including the LLVM assembler I mostly use) will
> happily accept SMSTART as an instruction by default others, specifically
> gas, require that any architecture extensions be explicitly enabled.
> The assembler SME test p
Make sure the kthread is sleeping in the schedule_preempt_disabled()
call before calling its handler when kthread_bind[_mask]() is called
on it. This provides a sanity check verifying that the task is not
randomly blocked later at some point within its function handler, in
which case it could be ju
kthread_create_on_cpu() uses the CPU argument as an implicit and unique
printf argument to add to the format whereas
kthread_create_worker_on_cpu() still relies on explicitly passing the
printf arguments. This difference in behaviour is error prone and
doesn't help standardizing per-CPU kthread nam
From: "Paul E. McKenney"
The rcu_gp_might_be_stalled() function is no longer used, so this commit
removes it.
Signed-off-by: Paul E. McKenney
Reviewed-by: Joel Fernandes (Google)
Signed-off-by: Frederic Weisbecker
---
include/linux/rcutiny.h | 1 -
include/linux/rcutree.h | 1 -
kernel/rcu
Add three functions for efficient guaranteed allocations in a critical
section (that cannot sleep) when the exact number of allocations is not
known beforehand, but an upper limit can be calculated.
kmem_cache_prefill_sheaf() returns a sheaf containing at least given
number of objects.
kmem_cache
From: "Paul E. McKenney"
Currently, there are only two flavors of readers, normal and NMI-safe.
A number of fields, functions, and types reflect this restriction.
This renaming-only commit prepares for the addition of light-weight
(as in memory-barrier-free) readers. OK, OK, there is also a driv
Create the vm_area_struct cache with percpu sheaves of size 32 to
hopefully improve its performance. For CONFIG_PER_VMA_LOCK, change the
vma freeing from custom call_rcu() callback to kfree_rcu() which
will perform rcu_free sheaf batching. Since there may be additional
structures attached and they
Specifying a non-zero value for a new struct kmem_cache_args field
sheaf_capacity will setup a caching layer of percpu arrays called
sheaves of given capacity for the created cache.
Allocations from the cache will allocate via the percpu sheaves (main or
spare) as long as they have no NUMA node pr
Extend the sheaf infrastructure for more efficient kfree_rcu() handling.
For caches where sheafs are initialized, on each cpu maintain a rcu_free
sheaf in addition to main and spare sheaves.
kfree_rcu() operations will try to put objects on this sheaf. Once full,
the sheaf is detached and submitte
Hello,
Please find below the RCU stall patches targeted for the upcoming
merge window.
Paul E. McKenney (3):
rcu: Delete unused rcu_gp_might_be_stalled() function
rcu: Stop stall warning from dumping stacks if grace period ends
rcu: Finer-grained grace-period-end checks in rcu_dump_cpu_stac
On 12/11/2024 11:56, Sabrina Dubroca wrote:
2024-10-29, 11:47:30 +0100, Antonio Quartulli wrote:
diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c
index
63c140138bf98e5d1df79a2565b666d86513323d..0e8a6f2c76bc7b2ccc287ad1187cf50f033bf261
100644
--- a/drivers/net/ovpn/io.c
+++ b/drivers/
On Thu, 07 Nov 2024 01:39:19 +, Mark Brown wrote:
> Currently we test signal delivery to the programs run by fp-stress but
> our signal handlers simply count the number of signals seen and don't do
> anything with the floating point state. The original fpsimd-test and
> sve-test programs had s
On Mon, 11 Nov 2024 18:32:58 +, Mark Brown wrote:
> Currently we don't build the PAC selftests when building with LLVM=1 since
> we attempt to test for PAC support in the toolchain before we've set up the
> build system to point at LLVM in lib.mk, which has to be one of the last
> things in the
On Mon, 11 Nov 2024 16:18:54 +, Mark Brown wrote:
> The PAC tests currently generate a very small number of false failures
> since the limited size of PAC keys, especially with fewer bits allocated
> for PAC due to larger VA, means collisions in generated PACs are
> possible even if the PAC key
Affining kthreads follow either of four existing different patterns:
1) Per-CPU kthreads must stay affine to a single CPU and never execute
relevant code on any other CPU. This is currently handled by smpboot
code which takes care of CPU-hotplug operations.
2) Kthreads that _have_ to be aff
On 04/11/2024 12:24, Sabrina Dubroca wrote:
2024-10-29, 11:47:30 +0100, Antonio Quartulli wrote:
+static int ovpn_peer_reset_sockaddr(struct ovpn_peer *peer,
+ const struct sockaddr_storage *ss,
+ const u8 *local_ip)
+
On 05/11/2024 11:16, Sabrina Dubroca wrote:
2024-10-29, 11:47:32 +0100, Antonio Quartulli wrote:
This change introduces the netlink commands needed to add, get, delete
and swap keys for a specific peer.
Userspace is expected to use these commands to create, inspect (non
sensible data only), des
On 05/11/2024 11:33, Sabrina Dubroca wrote:
2024-10-29, 11:47:33 +0100, Antonio Quartulli wrote:
+int ovpn_nl_key_swap_notify(struct ovpn_peer *peer, u8 key_id)
+{
[...]
+
+ nla_nest_end(msg, k_attr);
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast_netns(&ovpn_nl_family, dev_n
On 11/12/2024 02:58, Stefano Garzarella wrote:
On Thu, Nov 07, 2024 at 07:17:26PM -0600, Konstantin Shkolnyy wrote:
Replace setsockopt() calls with calls to functions that follow
setsockopt() with getsockopt() and check that the returned value and its
size are the same as have been set.
Signed-
From: "Paul E. McKenney"
This commit adds an rcutorture scenario that tests light-weight SRCU
readers. While in the area, it adjusts the size of the TREE10 scenario.
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryiko
Cc: Peter Zijlstra
Cc: Kent Overstreet
Cc:
Revie
On Sat, 12 Oct 2024 21:31:38 +0200, Karel Balej wrote:
> Add a MFD cell for the chip's real-time clock.
>
>
Applied, thanks!
[1/2] mfd: 88pm886: add the RTC cell
commit: 156d87b679a565a166da4a7ce892cb87f6317faf
--
Lee Jones [李琼斯]
Now that kthreads have an infrastructure to handle preferred affinity
against CPU hotplug and housekeeping cpumask, convert RCU boost to use
it instead of handling all the constraints by itself.
Acked-by: Paul E. McKenney
Signed-off-by: Frederic Weisbecker
---
kernel/rcu/tree.c| 27
From: "Paul E. McKenney"
Where RCU is watching is where it is OK to invoke rcu_read_lock().
Reported-by: Andrii Nakryiko
Signed-off-by: Paul E. McKenney
Acked-by: Andrii Nakryiko
Reviewed-by: Neeraj Upadhyay
Signed-off-by: Frederic Weisbecker
---
include/linux/srcu.h | 3 ++-
1 file change
From: "Paul E. McKenney"
This commit causes bit 0x4 of rcutorture.reader_flavor to select the new
srcu_read_lock_lite() and srcu_read_unlock_lite() functions.
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryiko
Cc: Peter Zijlstra
Cc: Kent Overstreet
Cc:
Reviewed-by:
From: "Paul E. McKenney"
This commit prepares for testing of multiple SRCU reader flavors by
expanding RCUTORTURE_RDR_MASK_1 and RCUTORTURE_RDR_MASK_2 from a single
bit to eight bits, allowing them to accommodate the return values from
multiple calls to srcu_read_lock*(). This will in turn permi
Replace direct error handling with 'ksft_test_result_*',
'ksft_exit_fail_msg' macros for better reporting.
Test logs:
Before change:
- Without root
error: unshare, errno 1
- With root
No, output
After change:
- Without root
TAP version 13
1..1
Bail out! Error : Need to run as root# Planned te
From: "Paul E. McKenney"
This commit moves __srcu_read_lock_lite() and __srcu_read_unlock_lite()
into include/linux/srcu.h and marks them "static inline" so that they
can be inlined into srcu_read_lock_lite() and srcu_read_unlock_lite(),
respectively. They are not hand-inlined due to Tree SRCU a
From: "Paul E. McKenney"
This patch adds srcu_read_lock_lite() and srcu_read_unlock_lite(), which
dispense with the read-side smp_mb() but also are restricted to code
regions that RCU is watching. If a given srcu_struct structure uses
srcu_read_lock_lite() and srcu_read_unlock_lite(), it is not
From: "Paul E. McKenney"
This commit creates SRCU_READ_FLAVOR_NORMAL and SRCU_READ_FLAVOR_NMI
C-preprocessor macros for srcu_read_lock() and srcu_read_lock_nmisafe(),
respectively. These replace the old true/false values that were
previously passed to srcu_check_read_flavor(). In addition, the
On 11/11/2024 16:41, Sabrina Dubroca wrote:
2024-10-29, 11:47:31 +0100, Antonio Quartulli wrote:
+static int ovpn_nl_peer_modify(struct ovpn_peer *peer, struct genl_info *info,
+ struct nlattr **attrs)
+{
+ struct sockaddr_storage ss = {};
+ u32 sockfd, i
From: "Paul E. McKenney"
This commit adds some additional usage constraints to the kernel-doc
headers of srcu_read_lock() and srcu_read_lock_nmi_safe().
Suggested-by: Andrii Nakryiko
Signed-off-by: Paul E. McKenney
Reviewed-by: Neeraj Upadhyay
Signed-off-by: Frederic Weisbecker
---
include/
From: "Paul E. McKenney"
This commit changes a few "cpuc" variables to "sdp" to align with usage
elsewhere.
[ paulmck: Apply Neeraj Upadhyay feedback. ]
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryiko
Cc: Peter Zijlstra
Cc: Kent Overstreet
Cc:
Reviewed-by: Neera
From: "Paul E. McKenney"
Currently, there are only two flavors of readers, normal and NMI-safe.
Very straightforward state updates suffice to check for erroneous
mixing of reader flavors on a given srcu_struct structure. This commit
upgrades the checking in preparation for the addition of light-
From: "Paul E. McKenney"
Even though the open-coded expressions usually fit on one line, this
commit replaces them with a call to a new srcu_gp_is_expedited()
helper function in order to improve readability.
Signed-off-by: Paul E. McKenney
Cc: Alexei Starovoitov
Cc: Andrii Nakryiko
Cc: Peter
From: "Paul E. McKenney"
SRCU auto-expedites grace periods that follow a sufficiently long idle
period, and the srcu_might_be_idle() function is used to make this
decision. However, the upcoming light-weight SRCU readers will not do
auto-expediting because doing so would cause the grace-period m
From: Zhen Lei
The value of ARRAY_SIZE() can be determined at compile time, so if both
sides of the equation are ARRAY_SIZE(), using BUILD_BUG_ON() can help us
catch the problem earlier.
While there are cases where unequal array sizes will work, there is no
point in allowing them, so it makes mo
Hello,
Please find below the SRCU patches targeted for the upcoming
merge window.
Paul E. McKenney (15):
srcu: Rename srcu_might_be_idle() to srcu_should_expedite()
srcu: Introduce srcu_gp_is_expedited() helper function
srcu: Renaming in preparation for additional reader flavor
srcu: Bit
kthread_create() creates a kthread without running it yet. kthread_run()
creates a kthread and runs it.
On the other hand, kthread_create_worker() creates a kthread worker and
runs it.
This difference in behaviours is confusing. Also there is no way to
create a kthread worker and affine it using
Add 'ksft_exit_fail_msg()', if not run as root, with an appropriate
Warning.
Add 'ksft_print_header()' and 'ksft_set_plan()' to structure test
outputs more effectively.
Test logs:
Before Change:
- Without root
error: unshare, errno 1
- With root
No, output
After Change:
- Without root
TAP v
From: "Paul E. McKenney"
This commit pushes the grace-period-end checks further down into
rcu_dump_cpu_stacks(), and also uses lockless checks coupled with
finer-grained locking.
The result is that the current leaf rcu_node structure's ->lock is
acquired only if a stack backtrace might be needed
This version 5 patch series replace direct error handling methods with ksft
macros, which provide better reporting.Currently, when the tmpfs test runs,
it does not display any output if it passes,and if it fails
(particularly when not run as root),it simply exits without any warning or
message.
Th
From: "Paul E. McKenney"
Currently, once an RCU CPU stall warning decides to dump the stalling
CPUs' stacks, the rcu_dump_cpu_stacks() function persists until it
has gone through the full list. Unfortunately, if the stalled grace
periods ends midway through, this function will be dumping stacks
On 11/12/24 10:43, Daniel Gomez wrote:
> On Mon Nov 11, 2024 at 7:53 PM CET, Christophe Leroy wrote:
>>
>>
>> Le 09/11/2024 à 23:17, Daniel Gomez a écrit :
>>> On Sat Nov 9, 2024 at 11:35 AM CET, Christophe Leroy wrote:
Once module init has succeded it is too late to cancel loading.
If se
On Tue 12-11-24 18:49:46, Asahi Lina wrote:
> On 11/8/24 9:16 PM, Jan Kara wrote:
> > On Fri 08-11-24 01:09:54, Asahi Lina wrote:
> >> On 11/7/24 7:01 PM, Jan Kara wrote:
> >>> On Wed 06-11-24 11:59:44, Dan Williams wrote:
> Jan Kara wrote:
> [..]
> >> This WARN still feels like the w
Now that kthreads have an infrastructure to handle preferred affinity
against CPU hotplug and housekeeping cpumask, convert RCU exp workers to
use it instead of handling all the constraints by itself.
Acked-by: Paul E. McKenney
Signed-off-by: Frederic Weisbecker
---
kernel/rcu/tree.c | 105
When a kthread or any other task has an affinity mask that is fully
offline or unallowed, the scheduler reaffines the task to all possible
CPUs as a last resort.
This default decision doesn't mix up very well with nohz_full CPUs that
are part of the possible cpumask but don't want to be disturbed
Kthreads attached to a preferred NUMA node for their task structure
allocation can also be assumed to run preferrably within that same node.
A more precise affinity is usually notified by calling
kthread_create_on_cpu() or kthread_bind[_mask]() before the first wakeup.
For the others, a default a
On Tue, 2024-11-12 at 11:15 +0100, Uwe Kleine-König wrote:
> Hello Andy, hello Aren,
>
> On Mon, Nov 11, 2024 at 11:44:51AM +0200, Andy Shevchenko wrote:
> > On Sun, Nov 10, 2024 at 04:34:30PM -0500, Aren wrote:
> > > On Sun, Nov 10, 2024 at 09:52:32PM +0200, Andy Shevchenko wrote:
> > > > Sun, No
On 04/11/2024 16:14, Sabrina Dubroca wrote:
2024-10-29, 11:47:31 +0100, Antonio Quartulli wrote:
+static int ovpn_nl_peer_precheck(struct ovpn_struct *ovpn,
+struct genl_info *info,
+struct nlattr **attrs)
+{
+ if (NL_REQ_ATTR
On Tue, Nov 12, 2024 at 01:26:52PM +, Catalin Marinas wrote:
> On Tue, Nov 12, 2024 at 01:08:16PM +, Mark Brown wrote:
> > + // This has to come after we set PSTATE.SM
> > +check_fpmr_in:
> > + tbz x0, #HAVE_FPMR_SHIFT, wait_for_writes
> > + adrpx7, fpmr_in
> > + ldr x7,
On Tue, 12 Nov 2024 12:01:21 +0100, Miquel Raynal wrote:
>On 12/11/2024 at 08:21:33 +08, Lizhi Xu wrote:
>
>> On Mon, 11 Nov 2024 20:46:57 +0100, Miquel Raynal wrote:
>>> On 08/11/2024 at 22:54:20 +08, Lizhi Xu wrote:
>>>
>>> > syzkaller reported a corrupted list in ieee802154_if_remove. [1]
>>>
Add coverage for FPMR to fp-ptrace. FPMR can be available independently of
SVE and SME, if SME is supported then FPMR is cleared by entering and
exiting streaming mode. As with other registers we generate random values
to load into the register, we restrict these to bitfields which are always
defin
On 12/11/2024 02:18, Sergey Ryazanov wrote:
On 04.11.2024 13:26, Sabrina Dubroca wrote:
2024-10-29, 11:47:27 +0100, Antonio Quartulli wrote:
struct ovpn_peer *ovpn_peer_get_by_transp_addr(struct ovpn_struct
*ovpn,
struct sk_buff *skb)
{
- struct ovpn_peer *p
The assembler portions of fp-ptrace are passed feature flags by the C code
indicating which architectural features are supported. Currently these use
an entire register for each flag which is wasteful and gets cumbersome as
new flags are added. Switch to using flag bits in a single register to make
On Tue, Nov 12, 2024 at 01:08:16PM +, Mark Brown wrote:
> + // This has to come after we set PSTATE.SM
> +check_fpmr_in:
> + tbz x0, #HAVE_FPMR_SHIFT, wait_for_writes
> + adrpx7, fpmr_in
> + ldr x7, [x7, :lo12:fpmr_in]
> + msr FPMR, x7
Did this build for you
On Tue, Nov 12, 2024 at 11:30:14AM +, Catalin Marinas wrote:
> On Wed, Nov 06, 2024 at 05:07:51PM +, Mark Brown wrote:
> > + fprintf(stderr, "Unexpected SVCR %llx\n", get_svcr());
> > + return 1;
> > + }
> I think I'll change both printf specifiers to %lx here since
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