Messages in this thread | | | Date | Mon, 16 Mar 2009 22:07:40 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [crash] Re: Latest brk patchset |
| |
H. Peter Anvin wrote: > Yinghai Lu wrote: > >>> You could also write: >>> >>> PAGE_TABLE_SIZE((-PAGE_OFFSET & 0xffffffff) >> PAGE_SHIFT) << PAGE_SHIFT >>> >>> (the & 0xffffffff is necessary, or you'll get a signed shift.) >>> >> max kernel address space range? >> >> > > Yes, either ((1 << 32)-PAGE_OFFSET) or (-PAGE_OFFSET & 0xffffffff) > should work for that. >
The former seems more obvious.
J
| |