pipe_buf_usage(9)

💖 NAME 💖

okay bestie, welcome to the pipe_buf_usage(9) page — yes, the manual name is Kernel API Manual, and we are so here for it ✨

pipe_buf_usage — Return how many pipe buffers are in use. That's the whole vibe: it tells you the pipe buffer count, no cap 💅

🌸 SYNOPSIS 🌸

unsigned int pipe_buf_usage (const struct pipe_inode_info *pipe );

🎀 ARGUMENTS 🎀

• pipe — the pipe. Like, that's literally the whole argument, bestie — it's the pipe you're asking about 🫶

🦋 SEE ALSO 🦋

The kernel file is ./include/linux/pipe_fs_i.h, and the linked squad is:

• struct pipe_buffer(9)
• union pipe_index(9)
• struct anon_pipe_prealloc(9)
• struct pipe_inode_info(9)
• pipe_has_watch_queue(9)
• pipe_occupancy(9)
• pipe_empty(9)
• pipe_full(9)
• pipe_is_full(9)
• pipe_is_empty(9)
• pipe_buf(9)
• pipe_head_buf(9)
• pipe_buf_get(9)
• pipe_buf_release(9)
• pipe_buf_confirm(9)
• pipe_buf_try_steal(9)

mwah 💋 this cutie comes from the source/version ./include/linux and is dated October 2026 — periodt, that's the sign-off 🎀