set_restore_sigmask(9)

✨ set_restore_sigmask(9) — Kernel API Manual ✨

🌸 NAME 🌸

set_restore_sigmask — make sure saved_sigmask processing gets done ✨

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✨ SYNOPSIS ✨

void set_restore_sigmask (void );

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🎀 ARGUMENTS 🎀

• void — no arguments, like literally none, bestie 🙈

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💅 DESCRIPTION 💅

This one is giving main character energy for signal masks ✨. It sets TIF_RESTORE_SIGMASK and ensures that the arch signal code will run before returning to user mode, to process the flag. No cap.

Here’s the tea for all callers ☕: TIF_SIGPENDING is already set, or it’s no harm to set it. The way that works out is very chill.

Also important: TIF_RESTORE_SIGMASK need not be in the set of bits that the arch code will notice on return to user mode, in case those bits are scarce 👀. So yeah, it doesn’t have to be noticed there.

We set TIF_SIGPENDING here to ensure that the arch signal code always gets run when TIF_RESTORE_SIGMASK is set. periodt 💅

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🦋 SEE ALSO 🦋

• Kernel file ./include/linux/sched/signal.h struct thread_group_cputimer(9) 🫶

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mwah 💋 cute sign-off time: source/version ./include/linux/sched, date October 2026, page set_restore_sigmask(9). bye bestie, slay your signals 🌈✨