task_clear_jobctl_pending(9)

💅 task_clear_jobctl_pending(9) — bestie's guide to the Kernel API Manual ✨

okay so real talk, we're in the Kernel API Manual today and the vibe is very kernel-signal-internals. this one's called task_clear_jobctl_pending, and no cap, it's giving "tiny function, huge consequences." let's get into it 🫶

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✨ NAME ✨

task_clear_jobctl_pending — literally just clears jobctl pending bits. that's the whole job. she's focused, she's minimal, she ate 💅

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🎀 SYNOPSIS 🎀

void task_clear_jobctl_pending (struct task_struct *task , unsigned long
mask );

like, copy it exactly bestie, commas and all, don't be cute with it 🔥

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🌸 ARGUMENTS 🌸

• task — the target task. the main character of this whole operation 👑
• mask — the pending bits you want to clear. this is your shopping list of bits to yeet 💀

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🦋 DESCRIPTION 🦋

so what she actually does: she clears mask from task->jobctl. simple. iconic. periodt.

but here's the rule you CANNOT fumble — mask must be a subset of JOBCTL_PENDING_MASK. that's not a suggestion, that's the law, bestie 😭

and if JOBCTL_STOP_PENDING is the thing being cleared? then the other STOP bits get cleared together with it. they're a package deal, they move as a unit, iykyk 🎀

one more thing — if clearing mask leaves no stop or trap pending, this function goes ahead and calls task_clear_jobctl_trapping. she's tidy like that ✨

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⭐ CONTEXT ⭐

must be called with task->sighand->siglock held. like, HOLD the lock. do not show up to this function without it, fr fr 🙈

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🌈 SEE ALSO 🌈

kernel file ./kernel/signal.c, plus the whole friend group:

• task_set_jobctl_pending(9)
• task_clear_jobctl_trapping(9)
• task_participate_group_stop(9)
• ptrace_trap_notify(9)
• force_sig_seccomp(9)
• do_notify_parent_cldstop(9)
• do_signal_stop(9)
• do_jobctl_trap(9)
• do_freezer_trap(9)
• signal_delivered(9)
• sys_restart_syscall(9)
• set_current_blocked(9)
• sys_rt_sigprocmask(9)
• sys_rt_sigpending(9)
• copy_siginfo_to_external32(9)
• do_sigtimedwait(9)
• sys_rt_sigtimedwait(9)
• sys_kill(9)
• sys_pidfd_send_signal(9)
• sys_tgkill(9)
• sys_tkill(9)
• sys_rt_sigqueueinfo(9)
• sys_sigpending(9)
• sys_sigprocmask(9)
• sys_rt_sigaction(9)
• sys_rt_sigsuspend(9)

that's the whole group chat, every single one, no skipping 💜

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and that's the page bestie!! 🧚 from ./kernel, dated October 2026, this was task_clear_jobctl_pending(9) — go hold your siglock and slay 💖✨🍓