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| author | David Vrabel <dvrabel@cantab.net> | 2012-05-03 16:15:42 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-05-07 15:32:24 -0400 |
| commit | 83d51ab473dddde7df858015070ed22b84ebe9a9 (patch) | |
| tree | c02be9696877ae5d7c00a524ae4daf2f99c181f1 /crypto/pcompress.c | |
| parent | 96dc08b35c4af8cb5810450602590706f2593a5f (diff) | |
| download | linux-83d51ab473dddde7df858015070ed22b84ebe9a9.tar.gz linux-83d51ab473dddde7df858015070ed22b84ebe9a9.tar.bz2 linux-83d51ab473dddde7df858015070ed22b84ebe9a9.zip | |
xen/setup: update VA mapping when releasing memory during setup
In xen_memory_setup(), if a page that is being released has a VA
mapping this must also be updated. Otherwise, the page will be not
released completely -- it will still be referenced in Xen and won't be
freed util the mapping is removed and this prevents it from being
reallocated at a different PFN.
This was already being done for the ISA memory region in
xen_ident_map_ISA() but on many systems this was omitting a few pages
as many systems marked a few pages below the ISA memory region as
reserved in the e820 map.
This fixes errors such as:
(XEN) page_alloc.c:1148:d0 Over-allocation for domain 0: 2097153 > 2097152
(XEN) memory.c:133:d0 Could not allocate order=0 extent: id=0 memflags=0 (0 of 17)
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'crypto/pcompress.c')
0 files changed, 0 insertions, 0 deletions