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Add kvm_<sycall> wrappers for munmap(), close(), fallocate(), and
ftruncate() to cut down on boilerplate code when a sycall is expected
to succeed, and to make it easier for developers to remember to assert
success.
Implement and use a macro framework similar to the kernel's SYSCALL_DEFINE
infrastructure to further cut down on boilerplate code, and to drastically
reduce the probability of typos as the kernel's syscall definitions can be
copy+paste almost verbatim.
Provide macros to build the raw <sycall>() wrappers as well, e.g. to
replace hand-coded wrappers (NUMA) or pure open-coded calls.
Reviewed-by: Ackerley Tng <ackerleytng@google.com>
Tested-by: Ackerley Tng <ackerleytng@google.com>
Reviewed-by: Shivank Garg <shivankg@amd.com>
Tested-by: Shivank Garg <shivankg@amd.com>
Link: https://lore.kernel.org/r/20251016172853.52451-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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