[lkml]   [2004]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC] memory defragmentation to satisfy high order allocations
Marcelo Tosatti <> wrote:
> The following patch implements a "coalesce_memory()" function
> which takes "zone" and "order" as a parameter.
> It tries to move enough physically nearby pages to form a free area
> of "order" size.
> It does that by checking whether the page can be moved, allocating a new page,
> unmapping the pte's to it, copying data to new page, remapping the ptes,
> and reinserting the page on the radix/LRU.

Presumably this duplicates some of the memory hot-remove patches.

Apparently Dave Hansen has working and sane-looking hot remove code
which is in a close-to-submittable state.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:06    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean