Messages in this thread | | | Date | Tue, 31 Oct 2006 18:08:43 +0100 | Subject | Re: mmaping a kernel buffer to user space | From | Franck Bui-Huu <> |
| |
Hi,
Jiri Slaby wrote: > Guillermo Marcus wrote: >> Hi Jiri, >> >> The fact that it does not works with RAM is well documented in LDD3, >> pages 430++. It says (and I tested) that remap_xxx_range does not work >> in this case. They suggest a method using nopage, similar to the one I >> implement. > > Could somebody confirm, that this still holds?
Apparently this restriction has been removed since 2.6.15 when VM_PFNMAP flag has been introduced, see commit 6aab341e0a28aff100a09831c5300a2994b8b986
Why there's such restriction before 2.6.15, I haven't searched yet, but any hints would be appreciated.
Thanks Franck - 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/
| |