asm-generic: syscall_get_nr returns int (268e4671) · Commits · 戴 / test

include/asm-generic/syscall.h

+6 −2

Original line number	Diff line number	Diff line
		/*
		* Access to user system call parameters and results
		*
		* Copyright (C) 2008 Red Hat, Inc. All rights reserved.
		* Copyright (C) 2008-2009 Red Hat, Inc. All rights reserved.
		*
		* This copyrighted material is made available to anyone wishing to use,
		* modify, copy, or redistribute it subject to the terms and conditions
		@@ -32,9 +32,13 @@ struct pt_regs;
		* If @task is not executing a system call, i.e. it's blocked
		* inside the kernel for a fault or signal, returns -1.
		*
		* Note this returns int even on 64-bit machines. Only 32 bits of
		* system call number can be meaningful. If the actual arch value
		* is 64 bits, this truncates to 32 bits so 0xffffffff means -1.
		*
		* It's only valid to call this when @task is known to be blocked.
		*/
		long syscall_get_nr(struct task_struct task, struct pt_regs regs);
		int syscall_get_nr(struct task_struct task, struct pt_regs regs);

		/**
		* syscall_rollback - roll back registers after an aborted system call