check_input_range(9)

✨ check_input_range(9) ✨

okay so welcome to the Kernel API Manual, bestie 💖 this one is short and sweet and it's literally all about checking whether the requested range is valid. no cap.

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🎀 NAME 🎀

check_input_range — check if the requested range is valid. that's the name, that's the vibe, periodt 💅

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🦋 SYNOPSIS 🦋

int check_input_range (unsigned long start , size_t len_in );

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🌸 ARGUMENTS 🌸

• start — start address of the madvise-requested address range. like, where the range begins, bestie 📍
• len_in — length of the madvise-requested address range. the size of the range you're asking about, fr fr 📏

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💖 RETURN 💖

It gives you 0 if the input range is valid. otherwise? you get an error code. that's the whole return situation, iconic and straightforward ✨

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👑 SEE ALSO 👑

• Kernel file ./mm/madvise.c

that's it, that's the see-also. go peek at the kernel file if you're curious, iykyk 🫶

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— brought to you by ./mm, October 2026, and check_input_range(9) 💖🦋🎀