ENUM SLAB_FLAGS(9)

💖 NAME 💖

okay so bestie, this is the Kernel API Manual page for enum slab_flags — literally How the slab flags bits are used. slay, we're in kernel land now. 🫶

🌸 SYNOPSIS 🌸

enum slab_flags {
    SL_locked ,
    SL_partial ,
    SL_pfmemalloc

};

🎀 Constants 🎀

• SL_locked — Is locked with slab_lock 🔒
• SL_partial — On the per-node partial list 📋
• SL_pfmemalloc — Was allocated from PF_MEMALLOC reserves 💾

💅 Description 💅

The slab flags share space with the page flags 👀 but some bits have different interpretations. The high bits are used for information like zone/node/section. ✨

✨ SEE ALSO ✨

Kernel file ./mm/slub.c: kmem_cache_alloc_node(9), kmem_cache_free(9), ksize(9), kfree(9), kvfree(9), kvfree_atomic(9), kvfree_sensitive(9), kmem_cache_alloc_bulk(9). 🦋

okay bestie, that's the whole enum slab_flags(9) page — source/version ./mm, dated October 2026. Catch you in the kernel group chat! 🫶✨