diff options
| author | Daniel Kiper <dkiper@net-space.pl> | 2011-03-28 11:33:18 +0200 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-03-30 17:54:39 +0200 |
| commit | 4dfe22f5f24345511c378272189b7504d67767fb (patch) | |
| tree | 1201f70e51b645b15803d79517418d76747205f1 /drivers/xen/balloon.c | |
| parent | xen/balloon: Use PageHighMem() for high memory page detection (diff) | |
| download | linux-4dfe22f5f24345511c378272189b7504d67767fb.tar.xz linux-4dfe22f5f24345511c378272189b7504d67767fb.zip | |
xen/balloon: Simplify HVM integration
Simplify HVM integration proposed by Stefano Stabellini
in 53d5522cad291a0e93a385e0594b6aea6b54a071.
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/balloon.c')
| -rw-r--r-- | drivers/xen/balloon.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 61665b2601bf..42a0ba0e71b8 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -246,7 +246,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) set_phys_to_machine(pfn, frame_list[i]); /* Link back into the page tables if not highmem. */ - if (!xen_hvm_domain() && !PageHighMem(page)) { + if (xen_pv_domain() && !PageHighMem(page)) { int ret; ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), @@ -293,7 +293,7 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) scrub_page(page); - if (!xen_hvm_domain() && !PageHighMem(page)) { + if (xen_pv_domain() && !PageHighMem(page)) { ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), __pte_ma(0), 0); @@ -429,7 +429,7 @@ EXPORT_SYMBOL(free_xenballooned_pages); static int __init balloon_init(void) { - unsigned long pfn, nr_pages, extra_pfn_end; + unsigned long pfn, extra_pfn_end; struct page *page; if (!xen_domain()) @@ -437,11 +437,7 @@ static int __init balloon_init(void) pr_info("xen/balloon: Initialising balloon driver.\n"); - if (xen_pv_domain()) - nr_pages = xen_start_info->nr_pages; - else - nr_pages = max_pfn; - balloon_stats.current_pages = min(nr_pages, max_pfn); + balloon_stats.current_pages = xen_pv_domain() ? min(xen_start_info->nr_pages, max_pfn) : max_pfn; balloon_stats.target_pages = balloon_stats.current_pages; balloon_stats.balloon_low = 0; balloon_stats.balloon_high = 0; |