freezing_slow_path(9)
β¨ freezing_slow_path(9) β¨
okay so bestie, welcome to freezing_slow_path(9) from the Kernel API Manual β yes it's a manual page, yes it's about the freezer, and yes we're gonna get through this together π
πΈ NAME πΈ
freezing_slow_path β the slow path for testing whether a task needs to be frozen π§
like, there's a fast path and then there's this one. the vibes are "we're checking properly this time."
π SYNOPSIS π
bool freezing_slow_path (struct task_struct *p );
it returns a bool, it takes one pointer, and it's giving very "small function, big responsibility" energy. π
π¦ ARGUMENTS π¦
pβ the task to be tested π«Ά like, the actualstruct task_struct *we're asking about. that's the one.
β DESCRIPTION β
so here's the tea β β this function gets called by freezing if freezer_active isn't zero, and it tests whether p needs to enter and stay in the frozen state. π₯Ά
can be called under any context. any. context. no cap. π
the freezers are responsible for ensuring the target tasks see the updated state β that part is on them, not on this function, so don't come for this function about it π
ngl the whole point here is: this is the slow path, so it's doing the careful check. the fast path handled the easy cases already. π§
π₯ SEE ALSO π₯
- Kernel file
./kernel/freezer.cβ the actual source, go read it, it's iconic freeze_task(9)set_freezable(9)
and that's the whole page, bestie π it lives in ./kernel, it's dated October 2026, and honestly? it ate. periodt. ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms