binder_selec...read_ilocked(9)

🧵 binder_selec...read_ilocked(9) 🧵

okay so welcome to the Kernel API Manual page for binder_selec...read_ilocked(9). The actual full name is binder_select_thread_ilocked, and she is literally here to select a thread for doing proc work. let’s get into it, bestie 💅

💖 NAME 💖

• binder_select_thread_ilocked — selects a thread for doing proc work. 💖

🧚 SYNOPSIS 🧚

struct binder_thread * binder_select_thread_ilocked (struct binder_proc
*proc );

🎀 ARGUMENTS 🎀

• proc — process to select a thread from.

🌸 DESCRIPTION 🌸

okay so the big thing to know is this: calling this function moves the thread off the waiting_threads list, so it can only be woken up by the caller of this function, or a signal. therefore, callers should always wake up the thread this function returns. like, do not leave her on read 😭

✨ RETURN ✨

If there’s a thread currently waiting for process work, returns that thread. Otherwise returns NULL. 🫶

🔥 SEE ALSO 🔥

Kernel file ./drivers/android/binder.c — and the whole squad is here:

• binder_proc_lock(9)
• binder_proc_unlock(9)
• binder_inner_proc_lock(9)
• binder_inner_proc_unlock(9)
• binder_node_lock(9)
• binder_node_unlock(9)
• binder_node_inner_lock(9)
• binder_node_inner_unlock(9)
• binder_worklist_empty(9)
• binder_enqueue_work_ilocked(9)
• binder_enqueue_deferred_thread_work_ilocked(9)
• binder_enqueue_thread_work_ilocked(9)
• binder_enqueue_thread_work(9)
• binder_dequeue_work(9)
• binder_wakeup_thread_ilocked(9)
• binder_inc_node_tmpref(9)
• binder_dec_node_tmpref(9)
• binder_get_ref_for_node_olocked(9)
• binder_inc_ref_olocked(9)
• binder_dec_ref_olocked(9)
• binder_get_node_from_ref(9)
• binder_free_ref(9)
• binder_update_ref_for_handle(9)
• binder_dec_ref_for_handle(9)
• binder_inc_ref_for_node(9)
• binder_thread_dec_tmpref(9)
• binder_proc_dec_tmpref(9)
• binder_get_txn_from(9)
• binder_get_txn_from_and_acq_inner(9)
• binder_free_txn_fixups(9)
• binder_cleanup_transaction(9)
• binder_get_object(9)
• binder_validate_ptr(9)
• binder_validate_fixup(9)
• struct binder_task_work_cb(9)
• binder_do_fd_close(9)
• binder_deferred_fd_close(9)
• struct binder_ptr_fixup(9)
• struct binder_sg_copy(9)
• binder_do_deferred_txn_copies(9)
• binder_cleanup_deferred_txn_lists(9)
• binder_defer_copy(9)
• binder_add_fixup(9)
• binder_can_update_transaction(9)
• binder_find_outdated_transaction_ilocked(9)
• binder_proc_transaction(9)
• binder_get_node_refs_for_txn(9)
• binder_netlink_report(9)
• binder_free_buf(9)
• binder_apply_fd_fixups(9)
• print_next_binder_node_ilocked(9)

and that’s the page, bestie 🫶 the footer’s source/version bit is ./drivers/android, the date is October 2026, and the footer title is binder_selec...read_ilocked(9). mwah 💋