gfs2_mmap(9)

🦋 gfs2_mmap(9) — Kernel API Manual, but make it group chat 🦋

okay so welcome to the gfs2_mmap(9) page, straight out of the Kernel API Manual. It's short, it's sweet, and it's giving “the function is literally just here to return zero and not start drama.” Bestie, let's get into it. 💅

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✨ NAME ✨

gfs2_mmap — and the description is... literally blank in the source. We are respecting the silence. Iconic minimalism. 🎀

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🌸 SYNOPSIS 🌸

int gfs2_mmap (struct file *file , struct vm_area_struct *vma );

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🎀 ARGUMENTS 🎀

• file — the file to map, periodt. 💖
• vma — the VMA that described the mapping. Yes bestie, that's the whole description. 🦋

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🧚 DESCRIPTION 🧚

okay so real talk: there is no need to get a lock here unless we should be updating atime. That's it. That's the vibe. ⭐

And if there are any locking errors? We ignore them, because the only consequence is a missed atime update — which will just be deferred until later. No cap, no meltdown, no extra drama. 💀✨

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⭐ RETURN ⭐

Returns 0. That's the whole return section. Slay. 🌈👑

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💜 SEE ALSO 💜

First up, the kernel file itself: ./fs/gfs2/file.c — yes bestie, it's right there in the SEE ALSO list. 🫶

Then the whole friend group:

• gfs2_llseek(9)
• gfs2_readdir(9)
• do_gfs2_set_flags(9)
• gfs2_size_hint(9)
• gfs2_allocate_folio_backing(9)
• gfs2_page_mkwrite(9)
• gfs2_open_common(9)
• gfs2_open(9)
• gfs2_release(9)
• gfs2_fsync(9)
• gfs2_file_write_iter(9)
• calc_max_reserv(9)
• gfs2_lock(9)
• gfs2_flock(9)

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mwah 💋 that's the page, bestie. Sign-off time: source/version spot is ./fs/gfs2, the date is October 2026, and the page is literally gfs2_mmap(9). Bye bestie, drink water and don't forget your locks unless you're updating atime 🫶💖