xdr_pad_size(9)

💫 xdr_pad_size(9) 💫

okay so this is a page from the Kernel API Manual — yes bestie, the kernel has manpages and they're lowkey iconic 🎀

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✨ NAME ✨

xdr_pad_size — the little function that calculates the size of an object's pad. that's it. that's the whole job. and it eats 💅

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🌸 SYNOPSIS 🌸

size_t xdr_pad_size (size_t n );

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🦋 ARGUMENTS 🦋

• n — the size of the object being XDR encoded, and yes it's in bytes (had to say it, the units girlies know 😭)

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💖 DESCRIPTION 💖

so the way this implementation works? it avoids the need for conditional branches or modulo division. no if, no %, none of that. it's giving efficiency, it's giving main character energy, it's giving "i don't do branches" ⭐

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👑 RETURN 👑

returns the size (in bytes) of the needed XDR pad. that's the number you came for 💜

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🔥 SEE ALSO 🔥

the kernel file ./include/linux/sunrpc/xdr.h and honestly the whole xdr friend group:

• xdr_set_scratch_buffer(9)
• xdr_set_scratch_folio(9)
• xdr_reset_scratch_buffer(9)
• xdr_commit_encode(9)
• xdr_stream_remaining(9)
• xdr_align_size(9)
• xdr_stream_encode_item_present(9)
• xdr_stream_encode_item_absent(9)
• xdr_encode_bool(9)
• xdr_stream_encode_bool(9)
• xdr_stream_encode_u32(9)
• xdr_stream_encode_be32(9)
• xdr_stream_encode_u64(9)
• xdr_stream_encode_opaque_inline(9)
• xdr_stream_encode_opaque_fixed(9)
• xdr_stream_encode_opaque(9)
• xdr_stream_encode_uint32_array(9)
• xdr_item_is_absent(9)
• xdr_item_is_present(9)
• xdr_stream_decode_bool(9)
• xdr_stream_decode_u32(9)
• xdr_stream_decode_be32(9)
• xdr_stream_decode_u64(9)
• xdr_stream_decode_opaque_fixed(9)
• xdr_stream_decode_opaque_inline(9)
• xdr_stream_decode_uint32_array(9)

like... the whole roster. go read them, i'll wait 🫶

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and that's the page!! from ./include/linux/sunrpc, dated October 2026 — mwah, slay, no cap, see u in the next manpage bestie 🌈💅