task_set_jobctl_pending(9)

🌸 task_set_jobctl_pending — bestie edition 💅

okay so this is a page from the Kernel API Manual (yes, the task_set_jobctl_pending(9) one, we been knew) and honestly? she's lowkey iconic.

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✨ NAME ✨

task_set_jobctl_pending — set jobctl pending bits 🎀

like, she sets the bits. that's the whole vibe.

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🦋 SYNOPSIS 🦋

bool task_set_jobctl_pending (struct task_struct *task , unsigned long
mask );

returns a bool bestie, so you already know it's a yes/no situation 💖

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👑 ARGUMENTS 👑

• task — the target task 🎯 like, the one you're doing this to
• mask — the pending bits you wanna set ✨

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💜 DESCRIPTION 💜

okay so first thing: she clears mask from task->jobctl. not sets, clears, no cap. I know, the function name is giving set but this is the function and we respect her 🫶

mask must be a subset of JOBCTL_PENDING_MASK | JOBCTL_STOP_CONSUME | JOBCTL_STOP_SIGMASK | JOBCTL_TRAPPING. that's the assignment. no substitutions. periodt.

if a stop signo is being set, the existing signo gets cleared. out with the old, in with the new, we love a glow-up 🌈

and if task is already being killed or exiting? this function becomes a noop. she's not doing it. she's out. main character energy 💀

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🧚 CONTEXT 🧚

you must call this with task->sighand->siglock held.

fr fr, hold the lock. this is not a drill 🔥 don't be out here raw-dogging a signal lock situation, it's giving chaos.

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⭐ RETURN ⭐

• true — if mask is set 💖 slay
• false — if it made noop because task was dying 😭 RIP

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🌸 SEE ALSO 🌸

Kernel file ./kernel/signal.c and honestly the whole signal.c friend group, they're all here:

• task_clear_jobctl_trapping(9)
• task_clear_jobctl_pending(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)

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okay that's the whole page bestie, go set some pending bits responsibly 💅✨

mwah 💋 — this one's from the ./kernel source tree, dated October 2026, page task_set_jobctl_pending(9). drink water, hold your locks, i love you 🫶