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| author | Dan Magenheimer <dan.magenheimer@oracle.com> | 2012-12-10 11:15:53 +0000 |
|---|---|---|
| committer | Dan Magenheimer <dan.magenheimer@oracle.com> | 2012-12-10 11:15:53 +0000 |
| commit | 1c3b9dd61dabb6415fad0c0ae432a4a78bfca7f5 (patch) | |
| tree | ee94213bc075524ee82cb8873c88d8bca0716977 /xen/arch/x86/mm.c | |
| parent | e93e0d9d73ce77bd1f3471af68a194b47e0e8c45 (diff) | |
| download | xen-1c3b9dd61dabb6415fad0c0ae432a4a78bfca7f5.tar.gz xen-1c3b9dd61dabb6415fad0c0ae432a4a78bfca7f5.tar.bz2 xen-1c3b9dd61dabb6415fad0c0ae432a4a78bfca7f5.zip | |
xen: centralize accounting for domain tot_pages
Provide and use a common function for all adjustments to a
domain's tot_pages counter in anticipation of future and/or
out-of-tree patches that must adjust related counters
atomically.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/arch/x86/mm.c')
| -rw-r--r-- | xen/arch/x86/mm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 3657b258cd..c474e587ec 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -3843,7 +3843,7 @@ int donate_page( { if ( d->tot_pages >= d->max_pages ) goto fail; - d->tot_pages++; + domain_adjust_tot_pages(d, 1); } page->count_info = PGC_allocated | 1; @@ -3893,7 +3893,7 @@ int steal_page( } while ( (y = cmpxchg(&page->count_info, x, x | 1)) != x ); /* Unlink from original owner. */ - if ( !(memflags & MEMF_no_refcount) && !--d->tot_pages ) + if ( !(memflags & MEMF_no_refcount) && !domain_adjust_tot_pages(d, -1) ) drop_dom_ref = 1; page_list_del(page, &d->page_list); |