superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
mirror-linux/kernel/sched
History
Linus Torvalds 63724e9519 More MM-CID fixes, mostly fixing hangs/races: 
- Fix CID hangs due to a race between concurrent forks
 
  - Fix vfork()/CLONE_VM MMCID bug causing hangs
 
  - Remove pointless preemption guard
 
  - Fix CID task list walk performance regression on large systems
    by removing the known-flaky and slow counting logic using
    for_each_process_thread() in mm_cid_*fixup_tasks_to_cpus(),
    and implementing a simple sched_mm_cid::node list instead
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmm2JvIRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hTqg/+K7b4LDOi3nVblmoj6q+mQj2i8DFPbi10
 zeAWJJnamYWPvUi+Wxq30JjZJ9v+15Ddcmbhea9m/3u1YO6nAL5TbGeQcJ2LU/7p
 Ynu9cznv9PfqO4X7WQc3gJC9xx8PbcM00E3JzGxDX/3NDmDBaTOwwuTp41ymcbhm
 cGfnUQWGt81sMummVzqehszfIRMZHnWflYDJ2gC66rcGXMNBlEX125F8jybOm66n
 Ez6gO7e9EGn28+hZIufySsxaeeK/3NFVKj1UjGP/FMuBwQFAjHPv61nic33nOKXT
 yrw7U8DIaYUqFN4d1lplTG72j2YSUj7snn3Q+ubxpzFmOt7RmouVqwlVGEoey5fh
 cEe2VYSQFoZKQioWWyms1LP1hTOa2JkNVhdjBfRZ8IM+Wp47OaDiw1h1+zwwMDbJ
 xpDAXEuU+sBZiv2SeBLFQgrGj58gb8pdjN4o47X89mx8TKYWtStrCMsD+MF10LBm
 dz780Eiinbw5D8JBsxU/ehETpgrAAVmo1KbFx2Q2grAgkJs7jSqBN2KF8NpmH/ZS
 Jk8SpQOn4Vp8iO32TbpsV/GErG9EQgixQxnkTukv2Qd9kguhmjwbi/blN3rLBlBb
 XbmR9rRAMfAjlPrk84tn9ecXNWO0NV83IYheAwjip36alSbOs+OcxdhrZ78nxh8C
 EsKqGl3PeOk=
 =ce5G
 -----END PGP SIGNATURE-----

Merge tag 'sched-urgent-2026-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "More MM-CID fixes, mostly fixing hangs/races:

   - Fix CID hangs due to a race between concurrent forks

   - Fix vfork()/CLONE_VM MMCID bug causing hangs

   - Remove pointless preemption guard

   - Fix CID task list walk performance regression on large systems
     by removing the known-flaky and slow counting logic using
     for_each_process_thread() in mm_cid_*fixup_tasks_to_cpus(), and
     implementing a simple sched_mm_cid::node list instead"

* tag 'sched-urgent-2026-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/mmcid: Avoid full tasklist walks
  sched/mmcid: Remove pointless preempt guard
  sched/mmcid: Handle vfork()/CLONE_VM correctly
  sched/mmcid: Prevent CID stalls due to concurrent forks
 		2026-03-15 10:49:47 -07:00
..
Makefile sched: Enable context analysis for core.c and fair.c 2026-01-05 16:43:36 +01:00
autogroup.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
autogroup.h sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch] 2025-06-13 08:47:14 +02:00
build_policy.c sched_ext: Move internal type and accessor definitions to ext_internal.h 2025-09-03 11:33:28 -10:00
build_utility.c sched/smp: Make SMP unconditional 2025-06-13 08:47:18 +02:00
clock.c sched/clock: Avoid false sharing for sched_clock_irqtime 2026-02-03 12:04:19 +01:00
completion.c
…
core.c sched/mmcid: Avoid full tasklist walks 2026-03-11 12:01:07 +01:00
core_sched.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
cpuacct.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
cpudeadline.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
cpudeadline.h sched/deadline: only set free_cpus for online runqueues 2025-10-16 11:13:49 +02:00
cpufreq.c
…
cpufreq_schedutil.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
cpupri.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
cpupri.h sched/smp: Make SMP unconditional 2025-06-13 08:47:18 +02:00
cputime.c - A nice cleanup to the paravirt code containing a unification of the paravirt 2026-02-10 19:01:45 -08:00
deadline.c sched/debug: Fix dl_server (re)start conditions 2026-02-03 12:04:18 +01:00
debug.c sched/debug: Fix dl_server (re)start conditions 2026-02-03 12:04:18 +01:00
ext.c sched_ext: Use WRITE_ONCE() for the write side of scx_enable helper pointer 2026-03-09 06:08:26 -10:00
ext.h sched_ext: Use cgroup_lock/unlock() to synchronize against cgroup operations 2025-09-03 11:36:07 -10:00
ext_idle.c sched_ext: Fixes for v7.0-rc2 2026-03-03 14:14:20 -08:00
ext_idle.h sched_ext: Always use SMP versions in kernel/sched/ext_idle.h 2025-06-13 14:47:59 -10:00
ext_internal.h sched_ext: Document task ownership state machine 2026-03-05 06:21:06 -10:00
fair.c sched/core: Fix wakeup_preempt's next_class tracking 2026-02-23 11:19:19 +01:00
features.h sched/fair: Disable scheduler feature NEXT_BUDDY 2026-01-23 11:53:19 +01:00
idle.c sched: idle: Make skipping governor callbacks more consistent 2026-03-10 16:03:02 +01:00
isolation.c cgroup/cpuset: Call housekeeping_update() without holding cpus_read_lock 2026-02-23 10:46:49 -10:00
loadavg.c Merge branch 'tip/sched/urgent' 2025-07-14 17:16:28 +02:00
membarrier.c rseq: Simplify the event notification 2025-11-04 08:30:09 +01:00
pelt.c treewide: Update email address 2026-01-11 06:09:11 -10:00
pelt.h sched/fair: Switch to task based throttle model 2025-09-03 10:03:14 +02:00
psi.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
rq-offsets.c sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
rt.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
sched-pelt.h
…
sched.h sched/core: Fix wakeup_preempt's next_class tracking 2026-02-23 11:19:19 +01:00
smp.h
…
stats.c sched/smp: Use the SMP version of schedstats 2025-06-13 08:47:21 +02:00
stats.h delayacct: add timestamp of delay max 2026-01-31 16:16:06 -08:00
stop_task.c sched/core: Rework sched_class::wakeup_preempt() and rq_modified_*() 2025-12-17 10:53:25 +01:00
swait.c
…
syscalls.c sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting 2026-03-04 17:06:08 +01:00
topology.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
wait.c ARM: 2025-07-30 17:14:01 -07:00
wait_bit.c
…