[Xen-changelog] [xen stable-4.5] honor MEMF_no_refcount in alloc_heap_pages()

[patchbot@xxxxxxx]

commit 483c6cd2945fd05ec54ef9c3b0c9c8b8020959ba
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Mar 26 08:18:29 2015 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Mar 26 08:18:29 2015 +0100

    honor MEMF_no_refcount in alloc_heap_pages()
    
    Non-anonymous allocations with this flag set should - for the purpose
    of the availability check - be treated just like anonymous ones, as
    they wouldn't lead to a reduction of ->outstanding_pages.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Tim Deegan <tim@xxxxxxx>
    master commit: 17294e69c4cd299da7ba3ca8077e24be76bd61b1
    master date: 2015-02-26 13:58:54 +0100
---
 xen/common/page_alloc.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c
index 7b4092d..24a759c 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -617,7 +617,8 @@ static struct page_info *alloc_heap_pages(
      */
     if ( (outstanding_claims + request >
           total_avail_pages + tmem_freeable_pages()) &&
-          (d == NULL || d->outstanding_pages < request) )
+          ((memflags & MEMF_no_refcount) ||
+           !d || d->outstanding_pages < request) )
         goto not_found;
 
     /*
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.5

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