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runtime: fix build, divide by constant 0 is a compile-time error

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Change-Id: Iee319c9f5375c172fb599da77234c10ccb0fd314
Reviewed-on: https://go-review.googlesource.com/6020
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Keith Randall 2015-02-25 13:38:42 -08:00
parent 972f364550
commit 35a59f5c99
1 changed files with 2 additions and 1 deletions
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3
src/runtime/mem_linux.go
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@ -67,7 +67,8 @@ func sysAlloc(n uintptr, stat *uint64) unsafe.Pointer {
}
func sysUnused(v unsafe.Pointer, n uintptr) {
if hugePageSize != 0 && (uintptr(v)%hugePageSize != 0 || n%hugePageSize != 0) {
var s uintptr = hugePageSize // division by constant 0 is a compile-time error :(
if s != 0 && (uintptr(v)%s != 0 || n%s != 0) {
// See issue 8832
// Linux kernel bug: https://bugzilla.kernel.org/show_bug.cgi?id=93111
// Mark the region as NOHUGEPAGE so the kernel's khugepaged