ext_tree_try_encode_commit(9)

💅 ext_tree_try_encode_commit(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's a little function from the NFS blocklayout extent tree world and honestly? it's giving "last chance to fit everything in the box" energy. let's get into it 🎀

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✨ NAME ✨

ext_tree_try_encode_commit — literally just try to encode all the extents into the buffer 🫶

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🌸 SYNOPSIS 🌸

int ext_tree_try_encode_commit (struct pnfs_block_layout *bl , __be32 *p
, size_t buffer_size , size_t *count , __u64 *lastbyte );

like, five args, one int back, no cap. 💅

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🦋 ARGUMENTS 🦋

• bl — pointer to the layout. that's your main character right there 👑
• p — pointer to the output buffer. where the encoded stuff actually goes ✨
• buffer_size — size of the output buffer. the vibe check on how much room you get 📏
• count — output pointer to the number of encoded extents. it tells you how many made it in 🔢
• lastbyte — output pointer to the last written byte. literally the final byte, tracked 💫

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🌈 DESCRIPTION 🌈

so here's the tea ☕ — the return values are the whole story:

• 0 — Success! all required extents encoded, and both outputs are valid. ate and left no crumbs 💅✨
• -ENOSPC — Buffer too small 😭 nothing encoded, outputs are invalid. like, nothing, bestie — don't you dare read those outputs, they're lies 🙈

fr fr: on -ENOSPC the outputs are invalid. do not touch. do not pass go. 🚫

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🧚 SEE ALSO 🧚

• Kernel file ./fs/nfs/blocklayout/extent_tree.c
• ext_tree_encode_commit(9)
• ext_tree_prepare_commit(9)

go read those two, they're the sibling energy you need 🫶

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and that's the whole page, bestie 💖 this little icon came out of ./fs/nfs/blocklayout in October 2026 — yeah, from the future, we don't ask questions 🔥⭐ mwah, slay, periodt 💜