gfs2_pin(9)

💖 gfs2_pin(9) 💖

okay so bestie, welcome to gfs2_pin(9) — yes, straight from the Kernel API Manual 💅 this one is short but iconic, so let's get into it.

🌸 NAME 🌸

gfs2_pin — Pin a buffer in memory 🎀

✨ SYNOPSIS ✨

void gfs2_pin (struct gfs2_sbd *sdp , struct buffer_head *bh );

🎀 ARGUMENTS 🎀

• sdp — The superblock 👑 that's the main-character superblock right there.
• bh — The buffer to be pinned 🫶 literally the buffer getting pinned, no cap.

🦋 DESCRIPTION 🦋

okay so the one thing you cannot skip: the log lock must be held when calling this function. That's the whole vibe check, bestie. Log lock not held? Then don't call it. Periodt. 💀

⚠️ caveat queen: the log lock must be held when calling this function — fr fr, don't forget.

💅 SEE ALSO 💅

Kernel file: ./fs/gfs2/lops.c — and these adjacent besties are all here too:

• gfs2_unpin(9)
• gfs2_end_log_write_bh(9)
• gfs2_end_log_write(9)
• gfs2_log_submit_write(9)
• gfs2_log_alloc_bio(9)
• gfs2_log_get_bio(9)
• gfs2_log_write(9)
• gfs2_log_write_bh(9)
• gfs2_log_write_page(9)
• gfs2_end_log_read(9)
• gfs2_jhead_folio_search(9)
• gfs2_jhead_process_page(9)
• gfs2_find_jhead(9)
• databuf_lo_before_commit(9)

catch you later, bestie 💖 this page came from ./fs/gfs2, dated October 2026, and it's gfs2_pin(9) signing off — slay ✨🫶🎀