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author | Tony Lindgren <tony@atomide.com> | 2011-02-25 12:27:14 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2011-02-25 12:27:14 -0800 |
commit | 02fa9f0451ac639a687bfc145eefe58703ff220e (patch) | |
tree | fe984acc78f22f6eb8fb98efaba8b1ac2f3ad8d9 /arch/x86/xen/p2m.c | |
parent | cbc9438075ca9dee3f39a2e7310f81c304b40359 (diff) | |
parent | 51c404b2c514930e98e81e0b9294f19892a4f871 (diff) | |
download | linux-02fa9f0451ac639a687bfc145eefe58703ff220e.tar.bz2 |
Merge branch 'patches_for_2.6.38rc' of git://git.pwsan.com/linux-2.6 into devel-fixes
Diffstat (limited to 'arch/x86/xen/p2m.c')
-rw-r--r-- | arch/x86/xen/p2m.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index ddc81a06edb9..fd12d7ce7ff9 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -241,21 +241,15 @@ void __init xen_build_dynamic_phys_to_machine(void) * As long as the mfn_list has enough entries to completely * fill a p2m page, pointing into the array is ok. But if * not the entries beyond the last pfn will be undefined. - * And guessing that the 'what-ever-there-is' does not take it - * too kindly when changing it to invalid markers, a new page - * is allocated, initialized and filled with the valid part. */ if (unlikely(pfn + P2M_PER_PAGE > max_pfn)) { unsigned long p2midx; - unsigned long *p2m = extend_brk(PAGE_SIZE, PAGE_SIZE); - p2m_init(p2m); - - for (p2midx = 0; pfn + p2midx < max_pfn; p2midx++) { - p2m[p2midx] = mfn_list[pfn + p2midx]; - } - p2m_top[topidx][mididx] = p2m; - } else - p2m_top[topidx][mididx] = &mfn_list[pfn]; + + p2midx = max_pfn % P2M_PER_PAGE; + for ( ; p2midx < P2M_PER_PAGE; p2midx++) + mfn_list[pfn + p2midx] = INVALID_P2M_ENTRY; + } + p2m_top[topidx][mididx] = &mfn_list[pfn]; } m2p_override_init(); |