gfs2_fitrim(9)

gfs2_fitrim(9) 🦋✨

okay so this page comes from the Kernel API Manual, bestie, and we’re talking about gfs2_fitrim. It’s giving “generate discard requests for unused bits of the filesystem” energy. No cap, that’s literally the whole NAME vibe. 💅

🌸 NAME 🌸

gfs2_fitrim — generates discard requests for unused bits of the filesystem. Periodt. 🎀

✨ SYNOPSIS ✨

int gfs2_fitrim (struct file *filp , void __user *argp );

That’s the signature, exactly as it is — we do not mess with code. 🔥

🎀 ARGUMENTS 🎀

• filp — any file on the filesystem. Not a specific one, just any file, bestie.
• argp — pointer to the arguments, and it’s also used to pass the result. So it’s doing double duty — iconic. ✨

💖 RETURN 💖

0 on success. Otherwise? An error code. That’s it, that’s the tea. 😭

👑 SEE ALSO 👑

The kernel file is ./fs/gfs2/rgrp.c, and here’s the whole bestie squad — every single one, no skips:

• 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)
• 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)
• try_rgrp_unlink(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)

that’s the whole page, bestie. Source/version: ./fs/gfs2 · Date: October 2026 — slay, periodt. 💅🎀