Prominent features

== ==

Core (various)

clone3(): Add three new flags for pidfd-based process lifecycle management: CLONE_AUTOREAP (makes a child process auto-reap on exit without ever becoming a zombie), CLONE_NNP (sets no_new_privs on the child at clone time), and CLONE_PIDFD_AUTOKILL (ties a child's lifetime to the pidfd returned from clone3()) (cover), commit, commit, commit, commit, commit, commit
namespace: allow creating empty mount namespaces commit, commit, commit
pidfds: add coredump_code field to pidfd_info commit, commit
io_uring:
- Support for io_uring zero-copy and AF_XDP (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- kbuf: support min length left for incremental buffers commit
- Allow the user to pass the timeout value inside the SQE instead of pointing to a timespec (cover), commit, commit, commit, commit
- uring_cmd: allow non-iopoll cmds with IORING_SETUP_IOPOLL (cover), commit, commit, commit, commit, commit
- zcrx: Cleanups and preparation patches (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
Locking:
- Shrink size of sleeping locks commit, commit, commit
- Add/convert context analysis bits commit, commit, commit, commit
- rcu: Add BOOTPARAM_RCU_STALL_PANIC Kconfig option commit
- Lock context annotation fixes commit, commit, commit
- RCU: Candidate patches for the v7.1 merge window (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
VFS: Change inode->i_ino from unsigned long to u64 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
VT: Add modifier support to cursor keys commit
hrtimer,sched: General optimizations and hrtick enablement commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
clocksource: Rewrite clocksource watchdog and related cleanups commit, commit, commit, commit, commit
Provide runtime reset interface for hung task detector (cover), commit, commit, commit
kho
- history: track previous kernel version and kexec boot count (cover), commit, commit, commit, commit, commit, commit
- Make kho stateless (cover), commit, commit
liveupdate: Prevent double preservation (cover), commit, commit, commit
pid_namespace: make init creation more flexible (cover), commit, commit, commit, commit
Task scheduler
- sched_ext: Implement cgroup sub-scheduler support commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- topology: Optimize sd->shared allocation (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit
- Next chunk of the Proxy Exec series: Simple Donor Migration, to allow us to migrate blocked donors across runqueues to boost remote lock owners (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- sched_ext: Overhaul DSQ reenqueue infrastructure commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- sched_ext: Add verifier-time kfunc context filter commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- sched_ext: Implement SCX_ENQ_IMMED commit, commit, commit, commit, commit, commit,
- sched_ext: Use irq_work_queue_on() in schedule_deferred() commit
- fair: More complex proportional newidle balance commit
- deadline: Add reporting of runtime left & abs deadline to sched_getattr() for DEADLINE tasks commit
- eevdf: clear buddies for preempt_short commit
- fair: Prevent negative lag increase during delayed dequeue commit
- fair: Skip SCHED_IDLE rq for SCHED_IDLE task commit
ublk: add shared memory zero-copy support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
efi: Expose the runtime-services workqueue via sysfs (cover), commit, commit
workqueue: Introduce a sharded cache affinity scope (cover), commit, commit, commit, commit, commit, commit
VFS: getting rid of busy-wait in shrink_dcache_parent() commit, commit, commit, commit
VFS: move_mount: Allow MOVE_MOUNT_BENEATH to target the caller's rootfs, allowing to switch out the rootfs without pivot_root(2) commit, commit, commit
xattr: rework simple xattrs and support user.* xattrs on sockets commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
driver core: Make deferred_probe_timeout default a Kconfig option commit
dax: Prepare for famfs (cover), commit, commit, commit, commit, commit, commit, commit, commit
Fix bugs and performance of kstack offset randomisation (cover), commit, commit
module
- Expose imported namespaces via sysfs (cover), commit, commit
- Move 'struct module_signature' to uapi (cover), commit, commit, commit, commit, commit, commit, commit, commit
Scalable symbol flags with kflagstab (cover), commit, commit, commit, commit, commit, commit, commit
Rust
- Bindings for gem shmem (cover), commit, commit, commit, commit, commit
- gpu buddy allocator bindings (cover), commit, commit
- Add register! macro (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit
- Provide an option to inline C helpers into Rust (cover), commit, commit
rv
- Add Hybrid Automata monitor type, per-object and deadline monitors (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- rvgen: Robustness, modernization, and fixes (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- Allow epoll in rtapp-sleep monitor commit
tools/nolibc
- Enhance printf() commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit
- printf: Support negative variable width and precision commit
- Add err.h (cover), commit, commit
- Add support for asprintf() commit, commit