gfs2_log_write_bh(9)

💫 gfs2_log_write_bh(9) 💫

okay so bestie, welcome to the kernel API manual page for gfs2_log_write_bh — yes that's the whole title, and yes the manual name is literally just the function name again, we love a self-referential queen 🎀

✨ NAME ✨

gfs2_log_write_bh — write a buffer's content to the log

🦋 SYNOPSIS 🦋

void gfs2_log_write_bh (struct gfs2_sbd *sdp , struct buffer_head *bh );

🌸 ARGUMENTS 🌸

• sdp — the super block, aka the big-picture context for this whole situation 💅
• bh — the buffer pointing to the in-place location, like it literally knows where the thing lives fr fr

⭐ DESCRIPTION ⭐

so here's the tea: this function writes the content of the buffer to the next available location in the log. that's it, that's the whole vibe.

and the sweet part — the buffer will be unlocked once the i/o to the log has completed. so it's not unlocked immediately, it's unlocked when the write actually finishes. patience is a virtue, bestie 🧚

🔥 SEE ALSO 🔥

Kernel file ./fs/gfs2/lops.c — that's where the magic lives, iykyk 👑

• 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_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)

like, the whole friend group showed up for this one 😭🫶

and that's the page!! mwah 💋 this little icon came out of ./fs/gfs2 and it's dated October 2026, and if you ever need to find it again it answers to gfs2_log_write_bh(9) — periodt 💜