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1628b25248
linux/kernel/sched
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Peter Zijlstra 1628b25248 sched: Add blocked_donor link to task for smarter mutex handoffs 
Add link to the task this task is proxying for, and use it so
the mutex owner can do an intelligent hand-off of the mutex to
the task that the owner is running on behalf.

[jstultz: This patch was split out from larger proxy patch]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260512025635.2840817-8-jstultz@google.com
2026-06-02 12:26:07 +02:00
..
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 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: Add blocked_donor link to task for smarter mutex handoffs 2026-06-02 12:26:07 +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: Pass the policy to cpufreq_driver->adjust_perf() 2026-04-02 11:30:24 -05:00
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 sched/cputime: Drop now-stale mul_u64_u64_div_u64() over-approximation guard 2026-05-19 12:17:35 +02:00
deadline.c sched: deadline: Add dl_rq->curr pointer to address issues with Proxy Exec 2026-06-02 12:26:06 +02:00
debug.c sched/deadline: Reject debugfs dl_server writes for offline CPUs 2026-05-29 12:43:15 +02:00
ext_idle.c sched: Simplify ifdeffery around cpu_smt_mask 2026-05-19 12:17:37 +02:00
ext_idle.h sched_ext: Deny SCX kfuncs to non-SCX struct_ops programs 2026-04-20 07:57:29 -10:00
ext_internal.h sched_ext: Make bypass LB cpumasks per-scheduler 2026-04-24 14:31:36 -10:00
ext.c sched_ext: Auto-register/unregister dl_server reservations 2026-05-29 12:43:15 +02:00
ext.h sched_ext: Add @kargs to scx_fork() 2026-03-06 07:58:02 -10:00
fair.c Merge branch 'tip/sched/urgent' 2026-06-02 12:26:04 +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: Rework prev_balance() to avoid stale prev references 2026-06-02 12:26:06 +02:00
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
Makefile sched: Enable context analysis for core.c and fair.c 2026-01-05 16:43:36 +01:00
membarrier.c rseq: Revert to historical performance killing behaviour 2026-05-05 16:02:57 +02:00
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 sched: Rework prev_balance() to avoid stale prev references 2026-06-02 12:26:06 +02:00
sched-pelt.h sched: Make clangd usable 2025-06-11 11:20:53 +02:00
sched.h sched: deadline: Add dl_rq->curr pointer to address issues with Proxy Exec 2026-06-02 12:26:06 +02:00
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 delayacct: add timestamp of delay max 2026-01-31 16:16:06 -08:00
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 sched/topology: Provide arch_llc_mask for cache aware scheduling 2026-05-29 12:43:15 +02:00
wait_bit.c sched: Make clangd usable 2025-06-11 11:20:53 +02:00
wait.c ARM: 2025-07-30 17:14:01 -07:00