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Kernel: Clarify why ftruncate() & pread() are passed off_t const*
I fell into this trap and tried to switch the syscalls to pass by the `off_t` by register. I think it makes sense to add a clarifying comment for future readers of the code, so they don't fall into the same trap. :^)
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@ -9,6 +9,8 @@
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namespace Kernel {
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// NOTE: The length is passed by pointer because off_t is 64bit,
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// hence it can't be passed by register on 32bit platforms.
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ErrorOr<FlatPtr> Process::sys$ftruncate(int fd, Userspace<off_t const*> userspace_length)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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