rvt_mr_has_lkey(9)

🎀 rvt_mr_has_lkey 💅

okay bestie, welcome to the Kernel API Manual ✨ — yes, that's the manual name, we're in the kernel docs now, it's giving big-brain energy 🧠👑

✨ NAME ✨

rvt_mr_has_lkey — literally just "is MR" 🫶 like that's the whole description, the kernel devs said "you'll figure it out" and honestly? iconic of them 💀

🔥 SYNOPSIS 🔥

bool rvt_mr_has_lkey (struct rvt_mregion *mr , u32 lkey );

it returns a bool, so like… yes or no, no cap 🌸

🦋 ARGUMENTS 🦋

• mr — the mregion 🎀 (that's the memory region, she's the main character here)
• lkey — the lkey ⭐ (yes, that's what it's called, I don't make the rules)

not me with a whole two-argument function and zero further explanation 😭 the manpage said "the mregion" and "the lkey" and clocked out, and honestly? respect 🙈

👑 SEE ALSO 👑

so this lives in the kernel file ./drivers/infiniband/sw/rdmavt/mr.c 📁 and if you're nosy (you are, I love that) here's the whole friend group, no one left out fr fr 💖

• rvt_driver_mr_init(9)
• rvt_mr_exit(9)
• rvt_alloc_lkey(9)
• rvt_free_lkey(9)
• rvt_get_dma_mr(9)
• rvt_reg_user_mr(9)
• rvt_dereg_clean_qp_cb(9)
• rvt_dereg_clean_qps(9)
• rvt_check_refs(9)
• rvt_ss_has_lkey(9)
• rvt_dereg_mr(9)
• rvt_alloc_mr(9)
• rvt_set_page(9)
• rvt_map_mr_sg(9)
• rvt_fast_reg_mr(9)
• rvt_invalidate_rkey(9)
• rvt_sge_adjacent(9)
• rvt_lkey_ok(9)
• rvt_rkey_ok(9)

and that's the whole page bestie, slay 💅✨ this little gem comes from the source ./drivers/infiniband/sw/rdmavt and it's dated October 2026 🗓️💜 — go forth and check those lkeys, ily, bye! 🫶🎀