try_rgrp_unlink(9)

💅 try_rgrp_unlink — the kernel API manual moment 🎀

okay so bestie, we're in the Kernel API Manual and today's main character is try_rgrp_unlink(9). yes the whole page is about one function, and yes it's iconic. let's get into it ✨

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✨ NAME ✨

try_rgrp_unlink — literally goes looking for any unlinked, allocated, but unused inodes 🔍👑

like. the trinity of "why is this still here". no cap.

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🦋 SYNOPSIS 🦋

void try_rgrp_unlink (struct gfs2_rgrpd *rgd , u64 *last_unlinked , u64
skip );

that's the whole signature, copy it exactly, don't be cute with it 🫶

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🌸 ARGUMENTS 🌸

• rgd — the rgrp. that's it, that's the description. it's giving "minimalist icon" 💅
• last_unlinked — the block address of the last dinode we unlinked. the "where we left off" of it all 🎀
• skip — a block address we should explicitly not unlink. hands off, bestie 🙈

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💜 RETURN 💜

0 if no error. and the inode, if one has been found, in inode. 👑 (yes, inode — that's what the page says, we don't editorialize, we just report 🫡)

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🌈 SEE ALSO 🌈

the friend group is huge, buckle up:

• Kernel file: ./fs/gfs2/rgrp.c
• gfs2_setbit(9)
• gfs2_testbit(9)
• gfs2_bit_search(9)
• rs_cmp(9)
• gfs2_bitfit(9)
• gfs2_rbm_from_block(9)
• gfs2_rbm_add(9)
• gfs2_unaligned_extlen(9)
• gfs2_free_extlen(9)
• gfs2_bitcount(9)
• gfs2_rgrp_verify(9)
• gfs2_blk2rgrpd(9)
• gfs2_rgrpd_get_first(9)
• gfs2_rgrpd_get_next(9)
• __rs_deltree(9)
• gfs2_rs_deltree(9)
• gfs2_rs_delete(9)
• return_all_reservations(9)
• compute_bitstructs(9)
• gfs2_ri_total(9)
• read_rindex_entry(9)
• set_rgrp_preferences(9)
• gfs2_ri_update(9)
• gfs2_rindex_update(9)
• gfs2_rgrp_go_instantiate(9)
• gfs2_rgrp_brelse(9)
• gfs2_fitrim(9)
• rs_insert(9)
• rgd_free(9)
• rg_mblk_search(9)
• gfs2_next_unreserved_block(9)
• gfs2_reservation_check_and_update(9)
• gfs2_rbm_find(9)
• gfs2_rgrp_congested(9)
• gfs2_rgrp_used_recently(9)
• fast_to_acquire(9)
• gfs2_inplace_reserve(9)
• gfs2_inplace_release(9)
• gfs2_alloc_extent(9)
• rgblk_free(9)
• gfs2_rgrp_dump(9)
• gfs2_adjust_reservation(9)
• gfs2_set_alloc_start(9)
• gfs2_alloc_blocks(9)
• __gfs2_free_blocks(9)
• gfs2_free_meta(9)
• gfs2_check_blk_type(9)
• gfs2_rlist_add(9)
• gfs2_rlist_alloc(9)
• gfs2_rlist_free(9)

all of them. every single one. iykyk 💀

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ngl this page is short but it ate. go read rgrp.c if you want the full lore 🍓

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and that's the vibe check, bestie — brought to you from ./fs/gfs2, dated October 2026, filed under try_rgrp_unlink(9). slay, periodt, and don't forget to unlink responsibly 🧚💖