github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-10-07 02:56:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
65efcccddc
linux/kernel/sched
History
Chen Yu 65efcccddc sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code 
Kernel thread should not be covered by cache aware scheduling as
it borrows the statistics from the user space thread. Filter the
kernel thread in account_mm_sched().

In theory a kernel thread does not have any valid
cache group, so !grp should gate the kernel thread.
Add the PF_KTHREAD check explicitly here for safety
reasons, to guard against future modifications and
to pair with task_tick_cache().

Fixes: df0d984759 ("sched/cache: Introduce infrastructure for cache-aware load balancing")
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: <stable@kernel.org> # 7.2.x
Link: https://patch.msgid.link/058f0c6ea7b991c177a17de347fa3157f25489a7.1790035273.git.tim.c.chen@linux.intel.com
2026-09-22 10:50:49 +02:00
..
ext sched_ext: Fixes for v7.3-rc3 2026-09-15 11:57:51 -07:00
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 scx_dispatch_sched() to a new inlines.h 2026-07-15 13:37:59 -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 sched: Make clangd usable 2025-06-11 11:20:53 +02:00
core_sched.c sched: Unify SMT active check via sched_smt_active() 2026-05-19 12:17:37 +02:00
core.c sched/core: Avoid false migration warning for proxy donors 2026-09-18 12:19:43 +02:00
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_schedutil.c cpufreq: schedutil: Fix rate limit overflow 2026-08-15 19:00:11 +02:00
cpufreq.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
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 Merge branch 'idle-time-acc' into features 2026-06-16 16:21:46 +02:00
deadline.c sched/rt,dl: Skip migrate-disabled tasks when picking a push candidate 2026-09-02 09:17:49 +02:00
debug.c sched/debug: Remove unused schedstats 2026-06-30 10:56:57 +02:00
fair.c sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code 2026-09-22 10:50:49 +02:00
features.h sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT 2026-05-19 12:17:39 +02:00
idle.c sched_ext: Route ops.update_idle() to sub-schedulers and re-notify owed scheds 2026-07-13 22:18:44 -10:00
isolation.c sched/isolation: Defer freeing of cpumask memblock memory to initcall 2026-08-13 12:37:03 +02:00
loadavg.c Merge branch 'tip/sched/urgent' 2025-07-14 17:16:28 +02:00
Makefile sched: Enable context analysis for core.c and fair.c 2026-01-05 16:43:36 +01:00
membarrier.c Locking updates for v7.2: 2026-06-15 14:21:14 +05:30
pelt.c sched/eevdf: Move to a single runqueue 2026-06-30 10:56:53 +02:00
pelt.h sched/fair: Switch to task based throttle model 2025-09-03 10:03:14 +02:00
psi.c Merge branch 'sched/urgent' 2026-08-14 16:12:58 +02:00
rq-offsets.c sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
rt.c sched/rt,dl: Skip migrate-disabled tasks when picking a push candidate 2026-09-02 09:17:49 +02:00
sched-pelt.h sched: Make clangd usable 2025-06-11 11:20:53 +02:00
sched.h sched_ext: Changes for v7.3 2026-08-20 11:01:37 -07:00
smp.h sched: Make clangd usable 2025-06-11 11:20:53 +02:00
stats.c sched/smp: Use the SMP version of schedstats 2025-06-13 08:47:21 +02:00
stats.h sched/fair: Co-locate cfs_rq and sched_entity in cfs_tg_state 2026-06-02 12:26:10 +02:00
stop_task.c sched: Rework prev_balance() to avoid stale prev references 2026-06-02 12:26:06 +02:00
swait.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
syscalls.c Linux 7.0-rc4 2026-03-17 07:14:42 +01:00
topology.c Summary 2026-08-20 08:46:41 -07:00
wait_bit.c futex: Fix might_sleep() warning in futex_pivot_pending() 2026-08-20 18:26:42 +02:00
wait.c futex: Fix might_sleep() warning in futex_pivot_pending() 2026-08-20 18:26:42 +02:00