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Searched refs:need_resched (Results 1 – 25 of 110) sorted by relevance

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/linux-6.3-rc2/Documentation/translations/zh_CN/scheduler/
A Dsched-arch.rst38 2. need_resched/TIF_NEED_RESCHED 只会被设置，并且在运行任务调用 schedule()
39 之前永远不会被清除。空闲线程只需要查询need_resched，并且永远不会设置或清除它。
41 3. 当cpu_idle发现（need_resched() == 'true'），它应该调用schedule()。否则
44 4. 在检查need_resched时，唯一需要禁用中断的情况是，我们要让处理器休眠到下一个中
45 断（这并不对need_resched提供任何保护，它可以防止丢失一个中断）:
50 if (!need_resched()) {
56 5. 当need_resched变为高电平时，TIF_POLLING_NRFLAG可以由不需要中断来唤醒它们
57 的空闲程序设置。换句话说，它们必须定期轮询need_resched，尽管做一些后台工作或
61 么需要清除它，然后发出一个内存屏障（接着测试need_resched，禁用中断，如3中解释）。
/linux-6.3-rc2/Documentation/scheduler/
A Dsched-arch.rst29 2. need_resched/TIF_NEED_RESCHED is only ever set, and will never
31 threads need only ever query need_resched, and may never set or
34 3. When cpu_idle finds (need_resched() == 'true'), it should call
38 need_resched is if we are about to sleep the processor until
40 need_resched, it prevents losing an interrupt):
45 if (!need_resched()) {
52 need an interrupt to wake them up when need_resched goes high.
53 In other words, they must be periodically polling need_resched,
59 barrier issued (followed by a test of need_resched with
/linux-6.3-rc2/arch/arm64/include/asm/
A Dpreempt.h32 current_thread_info()->preempt.need_resched = 0; in set_preempt_need_resched()
37 current_thread_info()->preempt.need_resched = 1; in clear_preempt_need_resched()
42 return !current_thread_info()->preempt.need_resched; in test_preempt_need_resched()
A Dthread_info.h33 u32 need_resched; member
37 u32 need_resched;
/linux-6.3-rc2/arch/mips/kernel/
A Dentry.S48 # interrupt setting need_resched
84 local_irq_disable # make sure need_resched and
128 local_irq_disable # make sure need_resched and
150 local_irq_disable # make sure need_resched doesn't
A Didle.c54 if (!need_resched()) in r4k_wait_irqoff()
68 if (!need_resched()) in rm7k_wait_irqoff()
/linux-6.3-rc2/fs/jbd2/
A Dcheckpoint.c310 need_resched() || in jbd2_log_do_checkpoint()
444 if (need_resched()) in journal_clean_one_cp_list()
489 if (need_resched()) in journal_shrink_one_cp_list()
548 if (need_resched() || spin_needbreak(&journal->j_list_lock)) in jbd2_journal_shrink_checkpoint_list()
557 if (need_resched() || spin_needbreak(&journal->j_list_lock)) in jbd2_journal_shrink_checkpoint_list()
611 if (need_resched()) in __jbd2_journal_clean_checkpoint_list()
622 if (need_resched()) in __jbd2_journal_clean_checkpoint_list()
/linux-6.3-rc2/arch/powerpc/lib/
A Dvmx-helper.c48 if (IS_ENABLED(CONFIG_PREEMPT) && need_resched()) in exit_vmx_usercopy()
/linux-6.3-rc2/drivers/cpuidle/
A Dcoupled.c482 if (need_resched()) { in cpuidle_enter_state_coupled()
524 if (need_resched()) { in cpuidle_enter_state_coupled()
540 if (need_resched()) { in cpuidle_enter_state_coupled()
A Dpoll_state.c29 while (!need_resched()) { in poll_idle()
/linux-6.3-rc2/kernel/entry/
A Dkvm.c27 } while (ti_work & XFER_TO_GUEST_MODE_WORK || need_resched()); in xfer_to_guest_mode_work()
/linux-6.3-rc2/kernel/sched/
A Didle.c156 if (need_resched()) { in cpuidle_idle_call()
258 while (!need_resched()) { in do_idle()
/linux-6.3-rc2/fs/
A Ddrop_caches.c31 (mapping_empty(inode->i_mapping) && !need_resched())) { in drop_pagecache_sb()
/linux-6.3-rc2/arch/x86/include/asm/
A Dmwait.h118 if (!need_resched()) in mwait_idle_with_hints()
/linux-6.3-rc2/drivers/net/ethernet/sfc/
A Def100_rep.c399 bool need_resched; in efx_ef100_rep_poll() local
424 need_resched = efv->write_index != read_index; in efx_ef100_rep_poll()
426 if (need_resched) in efx_ef100_rep_poll()
/linux-6.3-rc2/Documentation/translations/zh_CN/locking/
A Dmutex-design.rst53 任务（need_resched，需要重新调度）准备运行时，当前任务试图自旋来获得
/linux-6.3-rc2/kernel/locking/
A Dosq_lock.c143 if (smp_cond_load_relaxed(&node->locked, VAL || need_resched() || in osq_lock()
A Dmutex.c373 if (!owner_on_cpu(owner) || need_resched()) { in mutex_spin_on_owner()
399 if (need_resched()) in mutex_can_spin_on_owner()
504 if (need_resched()) { in mutex_optimistic_spin()
/linux-6.3-rc2/drivers/acpi/
A Dacpi_pad.c161 while (!need_resched()) { in power_saving_thread()
206 if (unlikely(need_resched())) in power_saving_thread()
/linux-6.3-rc2/kernel/trace/
A Dtrace_output.c444 char need_resched; in trace_print_lat_fmt() local
466 need_resched = 'N'; in trace_print_lat_fmt()
469 need_resched = 'n'; in trace_print_lat_fmt()
472 need_resched = 'p'; in trace_print_lat_fmt()
475 need_resched = '.'; in trace_print_lat_fmt()
488 irqs_off, need_resched, hardsoft_irq); in trace_print_lat_fmt()
/linux-6.3-rc2/drivers/net/wireguard/
A Dsend.c282 if (need_resched()) in wg_packet_tx_worker()
306 if (need_resched()) in wg_packet_encrypt_worker()
/linux-6.3-rc2/drivers/char/hw_random/
A Ds390-trng.c77 if (need_resched()) { in trng_read()
/linux-6.3-rc2/fs/btrfs/
A Dextent-io-tree.c679 if (start <= end && state && !need_resched()) in __clear_extent_bit()
1050 !need_resched()) in __set_extent_bit()
1107 !need_resched()) in __set_extent_bit()
1290 !need_resched()) in convert_extent_bit()
1330 !need_resched()) in convert_extent_bit()
/linux-6.3-rc2/arch/arm/mach-omap2/
A Dcpuidle34xx.c114 if (omap_irq_pending() || need_resched()) in omap3_enter_idle()
A Dpm33xx-core.c225 if (omap_irq_pending() || need_resched()) in am33xx_cpu_suspend()

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