Messages in this thread | | | From | Kumar Gala <> | Subject | use of TASK_SIZE to determine user/kernel | Date | Fri, 18 Feb 2005 11:04:20 -0600 |
| |
We are looking at a 32-bit architecture implementation were we can have distinct address spaces for user and kernel, thus allowing 4G's for each. In doing this we have come across the use of TASK_SIZE to determine if an address is user vs kernel (example mm/memory.c). I'm wondering is it just sufficient to set TASK_SIZE to 0xffffffff? This feels wrong to me, since it would imply that all the places that are testing will never need access to the kernel memory space.
thanks
- kumar
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |