Wang Long 3d817689a6 sched/psi: create /proc/pressure and /proc/pressure/{io|memory|cpu} only when psi enabled ...

when CONFIG_PSI_DEFAULT_DISABLED set to N or the command line set psi=0,
I think we should not create /proc/pressure and
/proc/pressure/{io|memory|cpu}.

In the future, user maybe determine whether the psi feature is enabled by
checking the existence of the /proc/pressure dir or
/proc/pressure/{io|memory|cpu} files.

Signed-off-by: Wang Long <w@laoqinren.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://lkml.kernel.org/r/1576672698-32504-1-git-send-email-w@laoqinren.net

2020-01-17 10:19:22 +01:00

..

autogroup.c

sched/autogroup: Make autogroup_path() always available

2019-06-24 19:23:40 +02:00

autogroup.h

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

clock.c

sched/clock: Use static_branch_likely() with sched_clock_running

2019-11-29 08:10:54 +01:00

completion.c

sched/Documentation: Update wake_up() & co. memory-barrier guarantees

2018-07-17 09:30:34 +02:00

core.c

sched/core: Fix size of rq::uclamp initialization

2020-01-17 10:19:20 +01:00

cpuacct.c

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

cpudeadline.c

Linux 5.2-rc5

2019-06-17 12:12:27 +02:00

cpudeadline.h

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

cpufreq_schedutil.c

sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()

2019-12-25 10:42:08 +01:00

cpufreq.c

cpufreq: Avoid leaving stale IRQ work items during CPU offline

2019-12-12 17:59:43 +01:00

cpupri.c

sched/rt: Make RT capacity-aware

2019-12-25 10:42:10 +01:00

cpupri.h

sched/rt: Make RT capacity-aware

2019-12-25 10:42:10 +01:00

cputime.c

sched/cputime: move rq parameter in irqtime_account_process_tick

2020-01-17 10:19:21 +01:00

deadline.c

sched/core: Further clarify sched_class::set_next_task()

2019-11-11 08:35:21 +01:00

debug.c

sched/debug: Reset watchdog on all CPUs while processing sysrq-t

2020-01-17 10:19:20 +01:00

fair.c

sched/fair: Fix sgc->{min,max}_capacity calculation for SD_OVERLAP

2020-01-17 10:19:21 +01:00

features.h

sched/fair/util_est: Implement faster ramp-up EWMA on utilization increases

2019-10-29 10:01:07 +01:00

idle.c

Power management updates for 5.5-rc1

2019-11-26 19:06:44 -08:00

isolation.c

sched/isolation: Prefer housekeeping CPU in local node

2019-07-25 15:51:55 +02:00

loadavg.c

sched: loadavg: make calc_load_n() public

2018-10-26 16:26:32 -07:00

Makefile

psi: pressure stall information for CPU, memory, and IO

2018-10-26 16:26:32 -07:00

membarrier.c

membarrier: Fix RCU locking bug caused by faulty merge

2019-10-01 21:27:50 +02:00

pelt.c

schied/fair: Skip calculating @contrib without load

2019-12-17 13:32:51 +01:00

pelt.h

sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity()

2019-06-24 19:23:39 +02:00

psi.c

sched/psi: create /proc/pressure and /proc/pressure/{io|memory|cpu} only when psi enabled

2020-01-17 10:19:22 +01:00

rt.c

sched/rt: Make RT capacity-aware

2019-12-25 10:42:10 +01:00

sched-pelt.h

sched/fair: Fix "runnable_avg_yN_inv" not used warnings

2019-06-17 12:15:58 +02:00

sched.h

sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()

2019-12-25 10:42:08 +01:00

stats.c

proc: introduce proc_create_seq{,_data}

2018-05-16 07:23:35 +02:00

stats.h

sched/stats: Fix unlikely() use of sched_info_on()

2019-07-25 15:51:55 +02:00

stop_task.c

sched/core: Further clarify sched_class::set_next_task()

2019-11-11 08:35:21 +01:00

swait.c

kernel/sched/: remove caller signal_pending branch predictions

2019-01-04 13:13:48 -08:00

topology.c

Linux 5.4-rc7

2019-11-11 08:34:59 +01:00

wait_bit.c

sched/wait: fix ___wait_var_event(exclusive)

2019-12-17 13:32:50 +01:00

wait.c

Add wake_up_interruptible_sync_poll_locked()

2019-10-31 15:12:23 +00:00