gfs2_jhead_folio_search(9)

✨ NAME ✨

okay bestie, meet gfs2_jhead_folio_search(9) from the Kernel API Manual — she's literally here to look for the journal head in a given page. No cap. 💅

🌸 SYNOPSIS 🌸

bool gfs2_jhead_folio_search (struct gfs2_jdesc *jd , struct
       gfs2_log_header_host *head , struct folio *folio );

🎀 ARGUMENTS 🎀

• jd — the journal descriptor, aka the journal's little ID card 🪪
• head — the journal head to start from, the starting point bestie 👑
• folio — the folio to look in, aka the page situation we're checking out 🔍

🦋 RETURN 🦋

1 if found, 0 otherwise. That's the whole vibe check: found = 1, not found = 0. ✨

🌈 SEE ALSO 🌈

Kernel file ./fs/gfs2/lops.c — and the whole friend group is here:

• gfs2_pin(9)
• 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_process_page(9)
• gfs2_find_jhead(9)
• databuf_lo_before_commit(9)

signed off with love by source/version ./fs/gfs2, dated October 2026 — gfs2_jhead_folio_search(9) out 🫶💖