Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

sched/rt: Rename realtime_{prio, task}() to rt_or_dl_{prio, task}()

Browse Source 
Some find the name realtime overloaded. Use rt_or_dl() as an
alternative, hopefully better, name.

Suggested-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Qais Yousef <qyousef@layalina.io>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240610192018.1567075-4-qyousef@layalina.io
This commit is contained in:
Qais Yousef 2024-06-10 20:20:18 +01:00 committed by Peter Zijlstra
parent b166af3db7
commit ae04f69de0
13 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/bcachefs/six.c
View File

@ -335,7 +335,7 @@ static inline bool six_owner_running(struct six_lock *lock)
*/
rcu_read_lock();
struct task_struct *owner = READ_ONCE(lock->owner);
bool ret = owner ? owner_on_cpu(owner) : !realtime_task(current);
bool ret = owner ? owner_on_cpu(owner) : !rt_or_dl_task(current);
rcu_read_unlock();
return ret;

2
fs/select.c
View File

@ -82,7 +82,7 @@ u64 select_estimate_accuracy(struct timespec64 *tv)
* Realtime tasks get a slack of 0 for obvious reasons.
*/
if (realtime_task(current))
if (rt_or_dl_task(current))
return 0;
ktime_get_ts64(&now);

2
include/linux/ioprio.h
View File

@ -40,7 +40,7 @@ static inline int task_nice_ioclass(struct task_struct *task)
{
if (task->policy == SCHED_IDLE)
return IOPRIO_CLASS_IDLE;
else if (realtime_task_policy(task))
else if (rt_or_dl_task_policy(task))
return IOPRIO_CLASS_RT;
else
return IOPRIO_CLASS_BE;

10
include/linux/sched/rt.h
View File

@ -11,7 +11,7 @@ static inline bool rt_prio(int prio)
return unlikely(prio < MAX_RT_PRIO && prio >= MAX_DL_PRIO);
}
static inline bool realtime_prio(int prio)
static inline bool rt_or_dl_prio(int prio)
{
return unlikely(prio < MAX_RT_PRIO);
}
@ -27,19 +27,19 @@ static inline bool rt_task(struct task_struct *p)
/*
* Returns true if a task has a priority that belongs to RT or DL classes.
* PI-boosted tasks will return true. Use realtime_task_policy() to ignore
* PI-boosted tasks will return true. Use rt_or_dl_task_policy() to ignore
* PI-boosted tasks.
*/
static inline bool realtime_task(struct task_struct *p)
static inline bool rt_or_dl_task(struct task_struct *p)
{
return realtime_prio(p->prio);
return rt_or_dl_prio(p->prio);
}
/*
* Returns true if a task has a policy that belongs to RT or DL classes.
* PI-boosted tasks will return false.
*/
static inline bool realtime_task_policy(struct task_struct *tsk)
static inline bool rt_or_dl_task_policy(struct task_struct *tsk)
{
int policy = tsk->policy;

4
kernel/locking/rtmutex.c
View File

@ -347,7 +347,7 @@ static __always_inline int __waiter_prio(struct task_struct *task)
{
int prio = task->prio;
if (!realtime_prio(prio))
if (!rt_or_dl_prio(prio))
return DEFAULT_PRIO;
return prio;
@ -435,7 +435,7 @@ static inline bool rt_mutex_steal(struct rt_mutex_waiter *waiter,
* Note that RT tasks are excluded from same priority (lateral)
* steals to prevent the introduction of an unbounded latency.
*/
if (realtime_prio(waiter->tree.prio))
if (rt_or_dl_prio(waiter->tree.prio))
return false;
return rt_waiter_node_equal(&waiter->tree, &top_waiter->tree);

4
kernel/locking/rwsem.c
View File

@ -631,7 +631,7 @@ static inline bool rwsem_try_write_lock(struct rw_semaphore *sem,
* if it is an RT task or wait in the wait queue
* for too long.
*/
if (has_handoff || (!realtime_task(waiter->task) &&
if (has_handoff || (!rt_or_dl_task(waiter->task) &&
!time_after(jiffies, waiter->timeout)))
return false;
@ -914,7 +914,7 @@ static bool rwsem_optimistic_spin(struct rw_semaphore *sem)
if (owner_state != OWNER_WRITER) {
if (need_resched())
break;
if (realtime_task(current) &&
if (rt_or_dl_task(current) &&
(prev_owner_state != OWNER_WRITER))
break;
}

2
kernel/locking/ww_mutex.h
View File

@ -237,7 +237,7 @@ __ww_ctx_less(struct ww_acquire_ctx *a, struct ww_acquire_ctx *b)
int a_prio = a->task->prio;
int b_prio = b->task->prio;
if (realtime_prio(a_prio) || realtime_prio(b_prio)) {
if (rt_or_dl_prio(a_prio) || rt_or_dl_prio(b_prio)) {
if (a_prio > b_prio)
return true;

4
kernel/sched/core.c
View File

@ -166,7 +166,7 @@ static inline int __task_prio(const struct task_struct *p)
if (p->dl_server)
return -1; /* deadline */
if (realtime_prio(p->prio)) /* includes deadline */
if (rt_or_dl_prio(p->prio))
return p->prio; /* [-1, 99] */
if (p->sched_class == &idle_sched_class)
@ -8590,7 +8590,7 @@ void normalize_rt_tasks(void)
schedstat_set(p->stats.sleep_start, 0);
schedstat_set(p->stats.block_start, 0);
if (!realtime_task(p)) {
if (!rt_or_dl_task(p)) {
/*
* Renice negative nice level userspace
* tasks back to 0:

2
kernel/sched/syscalls.c
View File

@ -57,7 +57,7 @@ static int effective_prio(struct task_struct *p)
* keep the priority unchanged. Otherwise, update priority
* to the normal priority:
*/
if (!realtime_prio(p->prio))
if (!rt_or_dl_prio(p->prio))
return p->normal_prio;
return p->prio;
}

6
kernel/time/hrtimer.c
View File

@ -1975,7 +1975,7 @@ static void __hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
* expiry.
*/
if (IS_ENABLED(CONFIG_PREEMPT_RT)) {
if (realtime_task_policy(current) && !(mode & HRTIMER_MODE_SOFT))
if (rt_or_dl_task_policy(current) && !(mode & HRTIMER_MODE_SOFT))
mode |= HRTIMER_MODE_HARD;
}
@ -2075,7 +2075,7 @@ long hrtimer_nanosleep(ktime_t rqtp, const enum hrtimer_mode mode,
u64 slack;
slack = current->timer_slack_ns;
if (realtime_task(current))
if (rt_or_dl_task(current))
slack = 0;
hrtimer_init_sleeper_on_stack(&t, clockid, mode);
@ -2280,7 +2280,7 @@ schedule_hrtimeout_range_clock(ktime_t *expires, u64 delta,
* Override any slack passed by the user if under
* rt contraints.
*/
if (realtime_task(current))
if (rt_or_dl_task(current))
delta = 0;
hrtimer_init_sleeper_on_stack(&t, clock_id, mode);

2
kernel/trace/trace_sched_wakeup.c
View File

@ -547,7 +547,7 @@ probe_wakeup(void *ignore, struct task_struct *p)
* - wakeup_dl handles tasks belonging to sched_dl class only.
*/
if (tracing_dl || (wakeup_dl && !dl_task(p)) ||
(wakeup_rt && !realtime_task(p)) ||
(wakeup_rt && !rt_or_dl_task(p)) ||
(!dl_task(p) && (p->prio >= wakeup_prio || p->prio >= current->prio)))
return;

4
mm/page-writeback.c
View File

@ -418,7 +418,7 @@ static void domain_dirty_limits(struct dirty_throttle_control *dtc)
bg_thresh = (bg_ratio * available_memory) / PAGE_SIZE;
tsk = current;
if (realtime_task(tsk)) {
if (rt_or_dl_task(tsk)) {
bg_thresh += bg_thresh / 4 + global_wb_domain.dirty_limit / 32;
thresh += thresh / 4 + global_wb_domain.dirty_limit / 32;
}
@ -477,7 +477,7 @@ static unsigned long node_dirty_limit(struct pglist_data *pgdat)
else
dirty = vm_dirty_ratio * node_memory / 100;
if (realtime_task(tsk))
if (rt_or_dl_task(tsk))
dirty += dirty / 4;
/*

2
mm/page_alloc.c
View File

@ -4002,7 +4002,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask, unsigned int order)
*/
if (alloc_flags & ALLOC_MIN_RESERVE)
alloc_flags &= ~ALLOC_CPUSET;
} else if (unlikely(realtime_task(current)) && in_task())
} else if (unlikely(rt_or_dl_task(current)) && in_task())
alloc_flags |= ALLOC_MIN_RESERVE;
alloc_flags = gfp_to_alloc_flags_cma(gfp_mask, alloc_flags);