gfs2_add_jextent(9)

🎀 gfs2_add_jextent(9) 🎀

okay so bestie, this page lives in the Kernel API Manual, and it is literally about adding or merging a new extent into the extent cache. both. it’s giving multitasking 💅 no cap.

✨ NAME ✨

gfs2_add_jextent — add or merge a new extent to extent cache 🦋

🌸 SYNOPSIS 🌸

int gfs2_add_jextent (struct gfs2_jdesc *jd , u64 lblock , u64 dblock , u64 blocks );

💖 ARGUMENTS 💖

• jd — the journal descriptor; main character energy fr 👑
• lblock — the logical block at start of new extent ✨
• dblock — the physical block at start of new extent 🔥
• blocks — size of extent in fs blocks 🎀

⭐ RETURN ⭐

0 on success, or -ENOMEM — that’s the whole mood. 😭

🌈 SEE ALSO 🌈

Kernel file ./fs/gfs2/bmap.c and these absolute icons 👑:

• gfs2_unstuffer_folio(9)
• gfs2_unstuff_dinode(9)
• find_metapath(9)
• metaptr1(9)
• metapointer(9)
• lookup_metapath(9)
• fillup_metapath(9)
• gfs2_extent_length(9)
• gfs2_hole_size(9)
• __gfs2_iomap_alloc(9)
• gfs2_alloc_size(9)
• __gfs2_iomap_get(9)
• gfs2_block_map(9)
• gfs2_journaled_truncate(9)
• sweep_bh_for_rgrps(9)
• find_nonnull_ptr(9)
• punch_hole(9)
• do_shrink(9)
• do_grow(9)
• gfs2_setattr_size(9)
• gfs2_free_journal_extents(9)
• gfs2_map_journal_extents(9)
• gfs2_write_alloc_required(9)

mwah 💋 source ./fs/gfs2, version/date October 2026, manual gfs2_add_jextent(9) — bye bestie 🫶