alloc_opinfo(9)

💅 alloc_opinfo(9) — the kernel API manual, but make it cute

okay so bestie, welcome to alloc_opinfo(9) — a kernel API manual situation from the ./fs/smb/server girlies, dated October 2026. it's giving "one little helper function that holds the whole oplock household together" and honestly? iconic. let's get into it 🎀

---

✨ NAME ✨

alloc_opinfo — literally just allocates a brand-new opinfo object for oplock info. that's the whole job. she's a builder, a creator, a main character 🫶

---

🌸 SYNOPSIS 🌸

struct oplock_info * alloc_opinfo (struct ksmbd_work *work , u64 id ,
__u16 Tid );

copy that exactly, bestie — we do not freestyle signatures in this house 💅

---

🦋 ARGUMENTS 🦋

• work — the smb work. like, the whole work context that's doing the thing.
• id — the fid of the open file. it's a u64, she's got range ✨
• Tid — the tree id of the connection. note the capital T, she's fancy like that.

---

👑 RETURN 👑

you get the allocated opinfo object back on success 🎉 and on failure? NULL. no in-between, no participation trophy, just NULL. check your pointers, bestie 😭

---

🔥 SEE ALSO 🔥

the kernel file ./fs/smb/server/oplock.c — that's the mothership 🚀 — plus this whole entire friend group of (9) functions:

• opinfo_write_to_read(9)
• opinfo_read_handle_to_read(9)
• opinfo_write_to_none(9)
• opinfo_read_to_none(9)
• lease_read_to_write(9)
• lease_none_upgrade(9)
• close_id_del_oplock(9)
• grant_write_oplock(9)
• grant_read_oplock(9)
• grant_none_oplock(9)
• same_client_has_lease(9)
• __smb2_oplock_break_noti(9)
• smb2_oplock_break_noti(9)
• __smb2_lease_break_noti(9)
• smb2_lease_break_noti(9)
• smb_grant_oplock(9)
• smb_break_all_write_oplock(9)
• __smb_break_all_levII_oplock(9)
• smb_break_all_oplock(9)
• smb2_map_lease_to_oplock(9)
• create_lease_buf(9)
• parse_lease_state(9)
• smb2_find_context_vals(9)
• create_durable_rsp_buf(9)
• create_durable_v2_rsp_buf(9)
• create_mxac_rsp_buf(9)
• create_posix_rsp_buf(9)
• create_aapl_rsp_buf(9)
• lookup_lease_in_table(9)

like, all of them. every single one. no cap, I counted, they're all there 💯

---

ok and that's the page!! no warnings, no bugs section, no deprecated anything — she's a clean, simple girlie. go allocate responsibly 🧚

---

and that's a wrap on alloc_opinfo(9)!! this little baby shipped from ./fs/smb/server, version/date October 2026, and yes the manpage is still literally titled alloc_opinfo(9) at the footer too because consistency is the vibe 💖 mwah, stan kernel docs, periodt ✨🎀