gfs2_fill_super(9)

💖 gfs2_fill_super(9) 💖

okay so bestie, we're cracking open the Kernel API Manual today and the star of the show is gfs2_fill_super — like, literally the function that reads in the superblock. no cap, this is important stuff. 🎀

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✨ NAME ✨

gfs2_fill_super — Read in superblock 📖

✨ SYNOPSIS ✨

int gfs2_fill_super (struct super_block *sb , struct fs_context *fc );

🌸 ARGUMENTS 🌸

• sb — The VFS superblock. yes bestie, the superblock. main character energy fr. 👑
• fc — Mount options and flags. all the lil settings that tell it how to mount. 💅

⭐ RETURN ⭐

-errno — that's it, that's the whole return value. if something goes sideways, you get the negative errno and you can go cry about it (affectionately). 😭

🦋 SEE ALSO 🦋

Kernel file ./fs/gfs2/ops_fstype.c — go read it, iykyk 👀

and also these iconic little functions, all of them, no skipping:

• gfs2_tune_init(9)
• gfs2_check_sb(9)
• gfs2_read_super(9)
• gfs2_read_sb(9)
• gfs2_jindex_hold(9)
• init_statfs(9)
• gfs2_lm_mount(9)
• gfs2_get_tree(9)
• gfs2_evict_inodes(9)

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🌈 that's the whole page bestie — short, sweet, and fully slaying. now go forth and read those superblocks. 🫶

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mwah 💋 this has been gfs2_fill_super(9) from ./fs/gfs2, dated October 2026 — catch you in the next mount, angel ✨💖