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| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-07 23:07:41 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-07 23:07:41 +0200 |
| commit | 8efc59ad6764ade520012cb192cd484e5191cd9c (patch) | |
| tree | d2465d91ebb2652e35cd08f715fc202b3f9e042a /arch/x86/xen/setup.c | |
| parent | 6f6184a9d01880a3e21349544f73b3720ce5e152 (diff) | |
| parent | 492c4a0df11573e141a2decc6012b3bddd14a11e (diff) | |
Merge branch 'sirf/cleanup' into next/cleanup
Diffstat (limited to 'arch/x86/xen/setup.c')
| -rw-r--r-- | arch/x86/xen/setup.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index c3b8d440873..46d6d21dbdb 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -306,10 +306,12 @@ char * __init xen_memory_setup(void) sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); extra_limit = xen_get_max_pages(); - if (extra_limit >= max_pfn) - extra_pages = extra_limit - max_pfn; - else - extra_pages = 0; + if (max_pfn + extra_pages > extra_limit) { + if (extra_limit > max_pfn) + extra_pages = extra_limit - max_pfn; + else + extra_pages = 0; + } extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820); |