nilfs_sufile_resize(9)

💅 nilfs_sufile_resize 💅

okay bestie, welcome to the Kernel API Manual — today’s main character is nilfs_sufile_resize(9), and she is literally here to resize the segment array. no cap. 🦋

🌸 NAME 🌸

nilfs_sufile_resize — resize segment array. 💖

✨ SYNOPSIS ✨

int nilfs_sufile_resize (struct inode *sufile , __u64 newnsegs );

🎀 ARGUMENTS 🎀

• sufile — inode of segment usage file. yes bestie, that exact inode.
• newnsegs — new number of segments. the fresh count, slay.

🔥 RETURN 🔥

0 on success, or one of the following negative error codes on failure — keep these on your radar, fr fr:

• -EBUSY — Dirty or active segments exist in the region to be truncated.
• -EIO — I/O error (including metadata corruption).
• -ENOMEM — Insufficient memory available.
• -ENOSPC — Enough free space is not left for shrinking.

🫶 SEE ALSO 🫶

go read these next, iykyk: ✨

• Kernel file ./fs/nilfs2/sufile.c
• struct nilfs_sufile_info(9)
• nilfs_sufile_segment_usage_offset(9)
• nilfs_sufile_get_ncleansegs(9)
• nilfs_sufile_updatev(9)
• nilfs_sufile_set_alloc_range(9)
• nilfs_sufile_alloc(9)
• nilfs_sufile_mark_dirty(9)
• nilfs_sufile_set_segment_usage(9)
• nilfs_sufile_get_stat(9)
• nilfs_sufile_truncate_range(9)
• nilfs_sufile_get_suinfo(9)
• nilfs_sufile_set_suinfo(9)
• nilfs_sufile_trim_fs(9)
• nilfs_sufile_read(9)

made with 💖 from the ./fs/nilfs2 source tree — October 2026 — and this cutie is nilfs_sufile_resize(9). periodt. 🎀