Re: hugetlb demand paging patch part [2/3]

From: Ray Bryant
Date: Fri Apr 16 2004 - 14:05:11 EST


Is there a big user demand for copy-on-write support for hugetlb pages?
I can understand the rationale for making hugetlb pages behave more like user pages, and fixing the problem that hugetlb pages are shared across fork via MAP_SHARE semantics regardless of whether the user requests MAP_PRIVATE or not, but it just doesn't strike me as something that anyone who uses hugetlb pages would actually want.

Of course, YRMV (your requirements may vary). :-)

'David Gibson' wrote:

Well, I'm attempting to understand the hugepage code across all the
archs, so that I can try to implement copy-on-write with a minimum of
arch specific gunk. Simplifying and consolidating the existing code
across archs would be a helpful first step, if possible.

Best Regards,
Ray Bryant
512-453-9679 (work) 512-507-7807 (cell)
raybry@xxxxxxx raybry@xxxxxxxxxxxxx
The box said: "Requires Windows 98 or better",
so I installed Linux.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at