Module Name: src Committed By: martin Date: Fri Oct 25 14:30:21 UTC 2013
Modified Files: src/sys/uvm: uvm_page.h Log Message: Optimize out VM_PHYSMEM_PTR_SWAP on architectures that have VM_PHYSSEG_MAX = 1 (hard to address two different array entries there w/o invoking undefined behaviour, and newer compilers complain about it). To generate a diff of this commit: cvs rdiff -u -r1.75 -r1.76 src/sys/uvm/uvm_page.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/uvm/uvm_page.h diff -u src/sys/uvm/uvm_page.h:1.75 src/sys/uvm/uvm_page.h:1.76 --- src/sys/uvm/uvm_page.h:1.75 Sat May 5 20:45:35 2012 +++ src/sys/uvm/uvm_page.h Fri Oct 25 14:30:21 2013 @@ -1,4 +1,4 @@ -/* $NetBSD: uvm_page.h,v 1.75 2012/05/05 20:45:35 rmind Exp $ */ +/* $NetBSD: uvm_page.h,v 1.76 2013/10/25 14:30:21 martin Exp $ */ /* * Copyright (c) 1997 Charles D. Cranor and Washington University. @@ -290,8 +290,12 @@ extern bool vm_page_zero_enable; */ #define VM_PHYSMEM_PTR(i) (&vm_physmem[i]) +#if VM_PHYSSEG_MAX == 1 +#define VM_PHYSMEM_PTR_SWAP(i, j) /* impossible */ +#else #define VM_PHYSMEM_PTR_SWAP(i, j) \ do { vm_physmem[(i)] = vm_physmem[(j)]; } while (0) +#endif extern struct vm_physseg vm_physmem[VM_PHYSSEG_MAX]; extern int vm_nphysseg;