__end_cred_crit_section(9)

💅 __end_cred_crit_section — Kernel API Manual, section 9, bestie

okay so picture this: you're in the kernel, you opened a crit section, and now you gotta close it. that's literally her whole job. she's the closing bracket energy of the AppArmor cred world 🎀

✨ NAME ✨

__end_cred_crit_section — bestie, this is the one that ends the crit section that __begin_... started. that's it, that's the vibe. 🦋

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✨ SYNOPSIS ✨

void __end_cred_crit_section (struct aa_label *label , bool needput );

look at her. two arguments. no notes. iconic. 👑

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✨ ARGUMENTS ✨

• label — the label you got from __begin_cred_crit_section. like, the same one. don't be out here inventing labels, okay? 🫶
• needput — this is an output: a bool that gets set by __begin_cred_crit_section. so __begin hands you this lil truthy flag and you pass it right back in here. it's giving "you dropped this 👑" energy.

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✨ DESCRIPTION ✨

okay so the cred you passed to __begin is guaranteed to not change — that part's locked in, no cap. 🔥

and like, sure, technically the cred and the label could both be passed here instead of needput. but here's the thing — using needput with a local var makes it so much easier for the compiler and the processor to optimize and speculatively execute the comparison than chasing a pointer around inside the cred struct. 🧚

so it's not just quirky, it's fast. it's giving "she's pretty AND she's efficient." 💅✨

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✨ SEE ALSO ✨

• Kernel file ./security/apparmor/include/cred.h — go read it, iykyk 📖
• aa_get_newest_cred_label(9)
• aa_current_raw_label(9)
• aa_get_current_label(9)
• __begin_cred_crit_section(9) — the other half of this duo 🫶
• __end_current_label_crit_section(9)
• end_current_label_crit_section(9)
• __begin_current_label_crit_section(9)
• begin_current_label_crit_section(9)

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fr fr, this is a begin/end pair. if you call __end without the matching __begin, that's a you problem and not a cute one. 🙈

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mwah 💋 that's all from the ./security/apparmor/include girlies — this page was dated October 2026, in the Kernel API Manual, and she's __end_cred_crit_section(9) if you need her again. periodt. 🌈🎀