linux/ipc
Linus Torvalds 543b9b6339 kernel-7.0-rc1.misc
Please consider pulling these changes from the signed kernel-7.0-rc1.misc tag.
 
 Thanks!
 Christian
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Merge tag 'kernel-7.0-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pidfs updates from Christian Brauner:

 - pid: introduce task_ppid_vnr() helper

 - pidfs: convert rb-tree to rhashtable

   Mateusz reported performance penalties during task creation because
   pidfs uses pidmap_lock to add elements into the rbtree. Switch to an
   rhashtable to have separate fine-grained locking and to decouple from
   pidmap_lock moving all heavy manipulations outside of it

   Also move inode allocation outside of pidmap_lock. With this there's
   nothing happening for pidfs under pidmap_lock

 - pid: reorder fields in pid_namespace to reduce false sharing

 - Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie
   callers"

 - ipc: Add SPDX license id to mqueue.c

* tag 'kernel-7.0-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  pid: introduce task_ppid_vnr() helper
  pidfs: implement ino allocation without the pidmap lock
  Revert "pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers"
  pid: reorder fields in pid_namespace to reduce false sharing
  pidfs: convert rb-tree to rhashtable
  ipc: Add SPDX license id to mqueue.c
2026-02-16 12:37:13 -08:00
..
compat.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipc_sysctl.c ipc: don't audit capability check in ipc_permissions() 2026-01-31 16:16:07 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mq_sysctl.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
mqueue.c kernel-7.0-rc1.misc 2026-02-16 12:37:13 -08:00
msg.c ipc/msg: replace one-element array with flexible array member 2024-11-05 17:12:28 -08:00
msgutil.c ns: drop custom reference count initialization for initial namespaces 2025-11-11 10:01:32 +01:00
namespace.c Significant patch series in this pull request: 2025-12-06 14:01:20 -08:00
sem.c copy_process: pass clone_flags as u64 across calltree 2025-09-01 15:31:34 +02:00
shm.c ipc: support ns lookup 2025-09-19 14:26:15 +02:00
syscall.c y2038: remove CONFIG_64BIT_TIME 2019-11-15 14:38:27 +01:00
util.c ipc/util.c: complete the kernel-doc function descriptions 2025-01-24 22:47:27 -08:00
util.h sched.h: move pid helpers to pid.h 2023-12-20 19:26:31 -05:00