gfs2_freeze_super(9)

💖 gfs2_freeze_super(9) 💖

okay so welcome to the kernel API manual, bestie — this one lives in section 9 and it's all about gfs2_freeze_super, which is literally the function that stops the filesystem from writing anything else. no cap. 🧊

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✨ NAME ✨

gfs2_freeze_super — prevent further writes to the filesystem

like, it puts your fs on pause. the vibe check is: no more writes, periodt. 💅

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🌸 SYNOPSIS 🌸

int gfs2_freeze_super (struct super_block *sb , enum freeze_holder who ,
       const void *freeze_owner );

that's the whole signature, character for character, don't @ me 🫶

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🎀 ARGUMENTS 🎀

• sb — the VFS structure for the filesystem. this is the main character right here, the super_block itself 👑
• who — freeze flags. yes it's an enum freeze_holder, yes the name is giving "who even is doing this freeze", and honestly same 😭
• freeze_owner — owner of the freeze. it's a const void *, so it's just vibing as an opaque pointer to whoever owns this whole situation ✨

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🦋 SEE ALSO 🦋

kernel file ./fs/gfs2/super.c — that's where the source lives, go peek if you're nosy (respectfully) 👀

and the whole friend group of related functions, all of them, in order, no skips:

• gfs2_jindex_free(9)
• gfs2_make_fs_rw(9)
• gfs2_lock_fs_check_clean(9)
• gfs2_write_inode(9)
• gfs2_dirty_inode(9)
• gfs2_make_fs_ro(9)
• gfs2_put_super(9)
• gfs2_sync_fs(9)
• gfs2_thaw_super(9)
• statfs_slow_fill(9)
• gfs2_statfs_slow(9)
• gfs2_statfs_i(9)
• gfs2_statfs(9)
• gfs2_drop_inode(9)
• gfs2_show_options(9)
• gfs2_glock_put_eventually(9)
• evict_should_delete(9)
• evict_unlinked_inode(9)
• gfs2_evict_inode(9)

ngl that's a whole squad and they all ate 🔥

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friendly reminder bestie: freeze means prevent further writes to the filesystem. that is the entire personality of this function. iykyk 💀

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mwah 💋 that's the page! source path is ./fs/gfs2, dated October 2026 — so go forth, freeze responsibly, and slay 🧚‍♀️💜🌸