gfs2_dir_hash_inval(9)

okay so bestie, welcome to the Kernel API Manual ✨ today's main character is gfs2_dir_hash_inval(9), and she's short but she has rules. 🎀

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✨ NAME ✨

gfs2_dir_hash_inval - Invalidate dir hash

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🌸 SYNOPSIS 🌸

void gfs2_dir_hash_inval (struct gfs2_inode *ip );

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💅 ARGUMENTS 💅

• ip — the directory inode. that's the one this whole little function is about, bestie. 🫶

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🦋 DESCRIPTION 🦋

okay so this is a tiny function but the rule is very real: Must be called with an exclusive glock, or during glock invalidation. no cap, that's the whole vibe check. 🔥

technical bestie warning: don't just call this however you want — it needs an exclusive glock, or it needs to be happening during glock invalidation. periodt. 💅

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🎀 SEE ALSO 🎀

the whole friend group, iykyk:

• Kernel file ./fs/gfs2/dir.c — the home base for this whole squad 🏡
• gfs2_dir_write_data(9)
• gfs2_dir_read_data(9)
• gfs2_dir_get_hash_table(9)
• dirent_next(9)
• dirent_del(9)
• get_leaf_nr(9)
• dir_make_exhash(9)
• dir_split_leaf(9)
• dir_double_exhash(9)
• compare_dents(9)
• do_filldir_main(9)
• gfs2_dir_readahead(9)
• dir_e_read(9)
• gfs2_dir_search(9)
• dir_new_leaf(9)
• gfs2_dir_add(9)
• gfs2_dir_del(9)
• gfs2_dir_mvino(9)
• leaf_dealloc(9)
• gfs2_dir_exhash_dealloc(9)
• gfs2_diradd_alloc_required(9)

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that's the whole page, bestie — footer says sourced from ./fs/gfs2, dated October 2026, and yes she's still gfs2_dir_hash_inval(9) from the Kernel API Manual. mwah 💋🌷