[PATCH 10/10] selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh

The current cgroup directory layout for running the partition state transition tests is mainly suitable for testing local partitions as well as with a mix of local and remote partitions. It is not that suitable for doing extensive remote partition and nested remote/local partition testing. Add a n

[PATCH 06/10] cgroup/cpuset: Code cleanup and comment update

Rename partition_xcpus_newstate() to isolated_cpus_update(), update_partition_exclusive() to update_partition_exclusive_flag() and the new_xcpus_state variable to isolcpus_updated to make their meanings more explicit. Also add some comments to further clarify the code. No functional change is expec

[PATCH 03/10] cgroup/cpuset: Fix error handling in remote_partition_disable()

When remote_partition_disable() is called to disable a remote partition, it always sets the partition to an invalid partition state. It should only do so if an error code (prs_err) has been set. Correct that and add proper error code in places where remote_partition_disable() is called due to error

[PATCH 02/10] cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()

Before commit f0af1bfc27b5 ("cgroup/cpuset: Relax constraints to partition & cpus changes"), a cpuset partition cannot be enabled if not all the requested CPUs can be granted from the parent cpuset. After that commit, a cpuset partition can be created even if the requested exclusive CPUs contain CP

[PATCH 00/10] cgroup/cpuset: Miscellaneous partition bug fixes and enhancements

This patch series fixes a number of bugs in the cpuset partition code as well as improvement in remote partition handling. The test_cpuset_prs.sh is also enhanced to allow more vigorous remote partition testing. Waiman Long (10): cgroup/cpuset: Fix race between newly created partition and dying

[PATCH 04/10] cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition

Currently, changes in exclusive CPUs are being handled in remote_partition_check() by disabling conflicting remote partitions. However, that may lead to results unexpected by the users. Fix this problem by removing remote_partition_check() and making update_cpumasks_hier() handle changes in descend

[PATCH 05/10] cgroup/cpuset: Don't allow creation of local partition over a remote one

Currently, we don't allow the creation of a remote partition underneath another local or remote partition. However, it is currently possible to create a new local partition with an existing remote partition underneath it if top_cpuset is the parent. However, the current cpuset code does not set the

[PATCH bpf v2 0/2] bpf, xdp: clean adjust_{head,meta} memory when offset < 0

This patchset originates from my attempt to resolve a KMSAN warning that has existed for over 3 years: https://syzkaller.appspot.com/bug?extid=0e6ddb1ef80986bdfe64 Previously, we had a brief discussion in this thread about whether we can simply perform memset in adjust_{head,meta}: https://lore.ke

[PATCH 09/10] selftest/cgroup: Clean up and restructure test_cpuset_prs.sh

Cleaning up the test_cpuset_prs.sh script and restructure some of the functions so that a new test matrix with a different cgroup directory structure can be added in the next patch. Signed-off-by: Waiman Long --- .../selftests/cgroup/test_cpuset_prs.sh | 257 +++--- 1 file chan

[PATCH 07/10] cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it

The goto statement in sched_partition_write() is not needed. Remove it and rename sched_partition_write()/sched_partition_show() to cpuset_partition_write()/cpuset_partition_show(). Signed-off-by: Waiman Long --- kernel/cgroup/cpuset.c | 15 ++- 1 file changed, 6 insertions(+), 9 del

Re: [GIT PULL] Modules changes for v6.15-rc1

The pull request you sent on Fri, 28 Mar 2025 16:53:26 +0100: > git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux.git/ > tags/modules-6.15-rc1 has been merged into torvalds/linux.git: https://git.kernel.org/torvalds/c/01d5b167dc230cf3b6eb9dd7205f6a705026d1ce Thank you! -- Deet-doot-

[PATCH v2] selftests/mm: Convert page_size to unsigned long

Cppcheck warning: int result is assigned to long long variable. If the variable is long long to avoid loss of information, then you have loss of information. This patch changes the type of page_size from 'unsigned int' to 'unsigned long' instead of using ULL suffixes. Changing hpage_size to 'unsig

Re: [PATCH v2 12/16] selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers

On 3/26/25 07:02, Mark Brown wrote: On Thu, Mar 20, 2025 at 01:23:47PM +, Mark Brown wrote: On Wed, Feb 26, 2025 at 12:44:51PM +0100, Thomas Weißschuh wrote: To allow the usage of parse_vdso.c together with a limited libc like nolibc, use the kernels own elf.h and auxvec.h headers. The v

Re: [PATCH v2] selftests: riscv: fix v_exec_initval_nolibc.c

Hi ignacio, On 30/03/2025 13:12, Ignacio Encinas Rubio wrote: Gentle ping :) No worries, it's either being merged in 6.15-rc1 or rc2! Thanks, Alex On 6/3/25 20:49, Ignacio Encinas wrote: Vector registers are zero initialized by the kernel. Stop accepting "all ones" as a clean value. N

Re: [PATCH v2 0/4] tools/nolibc: MIPS: entrypoint cleanups and N32/N64 ABIs

On 2025-03-29 10:51:47 [+0100], Thomas Weißschuh wrote: > > Does the following work for you when running kust "make nolibc-test"? I had to manually apply this on top of b4/nolibc-mips-n32. The resulting make produced the native 64bit binary. Sebastian