Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw

[cascardo/linux.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 378a15b..c3edb62 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1628,6 +1628,7 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark,
        long min = mark;
        long lowmem_reserve = z->lowmem_reserve[classzone_idx];
        int o;
+       long free_cma = 0;
 
        free_pages -= (1 << order) - 1;
        if (alloc_flags & ALLOC_HIGH)
@@ -1637,9 +1638,10 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark,
 #ifdef CONFIG_CMA
        /* If allocation can't use CMA areas don't use free CMA pages */
        if (!(alloc_flags & ALLOC_CMA))
-               free_pages -= zone_page_state(z, NR_FREE_CMA_PAGES);
+               free_cma = zone_page_state(z, NR_FREE_CMA_PAGES);
 #endif
-       if (free_pages <= min + lowmem_reserve)
+
+       if (free_pages - free_cma <= min + lowmem_reserve)
                return false;
        for (o = 0; o < order; o++) {
                /* At the next order, this order's pages become unavailable */