objagg_obj_get(9)

💅 objagg_obj_get(9) — the kernel API manual, bestie edition

okay so this is a page straight out of the Kernel API Manual, and it's all about objagg_obj_get — the glow-up function that gets you an object within an objagg instance ✨

---

🌸 NAME 🌸

objagg_obj_get — literally gets an object within an objagg instance, that's the whole vibe 🫶

---

✨ SYNOPSIS ✨

struct objagg_obj * objagg_obj_get (struct objagg *objagg , void *obj );

---

🎀 ARGUMENTS 🎀

• objagg — your objagg instance. the main character, the container, the whole situation 💅
• obj — a user-specific private object pointer. yes it's literally just called obj. iconic naming, no notes 🔥

---

💀 NOTE 💀

bestie pay attention, this part matters 😭

all locking must be provided by the caller. not the function's job, not its problem — you bring the locks, queen 👑

Size of the obj memory is specified in objagg->ops.

There are 3 main options this function wraps — like a lil choose-your-own-adventure, but make it kernel 🌈

1. The object according to obj already exists. In that case the reference counter is incremented and the object is returned. ate, no crumbs, done 💖
2. The object does not exist, but it can be aggregated within another object. In that case, user ops->delta_create is called to obtain delta data, and a new object is created with the returned user-delta private pointer 🦋
3. The object does not exist and cannot be aggregated into any of the existing objects. In that case, user ops->root_create is called to create the root, and a new object is created with the returned user-root private pointer 🌱

It returns a pointer to objagg object instance in case of success — otherwise it returns pointer error using the ERR_PTR macro 🚨 (so like, check that thing, fr fr 🙈)

---

🧚 SEE ALSO 🧚

Kernel file ./lib/objagg.c, plus these certified baddies that you should absolutely check out:

• objagg_obj_root_priv(9)
• objagg_obj_delta_priv(9)
• objagg_obj_raw(9)
• objagg_obj_put(9)
• objagg_create(9)
• objagg_destroy(9)
• objagg_stats_get(9)
• objagg_stats_put(9)
• objagg_hints_get(9)
• objagg_hints_put(9)
• objagg_hints_stats_get(9)

---

and that's the whole page, bestie 🫶✨ this one lives down in ./lib, dated October 2026 — go forth and get those objects, you've got this 💜🎀