Update to 3.4-final.

[linux-flexiantxendom0-3.2.10.git] / mm / percpu.c

diff --git a/mm/percpu.c b/mm/percpu.c
index f47af91..bb4be74 100644 (file)
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1132,20 +1132,20 @@ static void pcpu_dump_alloc_info(const char *lvl,
                for (alloc_end += gi->nr_units / upa;
                     alloc < alloc_end; alloc++) {
                        if (!(alloc % apl)) {
-                               printk("\n");
+                               printk(KERN_CONT "\n");
                                printk("%spcpu-alloc: ", lvl);
                        }
-                       printk("[%0*d] ", group_width, group);
+                       printk(KERN_CONT "[%0*d] ", group_width, group);
 
                        for (unit_end += upa; unit < unit_end; unit++)
                                if (gi->cpu_map[unit] != NR_CPUS)
-                                       printk("%0*d ", cpu_width,
+                                       printk(KERN_CONT "%0*d ", cpu_width,
                                               gi->cpu_map[unit]);
                                else
-                                       printk("%s ", empty_str);
+                                       printk(KERN_CONT "%s ", empty_str);
                }
        }
-       printk("\n");
+       printk(KERN_CONT "\n");
 }
 
 /**
@@ -1650,6 +1650,16 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
                areas[group] = ptr;
 
                base = min(ptr, base);
+       }
+
+       /*
+        * Copy data and free unused parts.  This should happen after all
+        * allocations are complete; otherwise, we may end up with
+        * overlapping groups.
+        */
+       for (group = 0; group < ai->nr_groups; group++) {
+               struct pcpu_group_info *gi = &ai->groups[group];
+               void *ptr = areas[group];
 
                for (i = 0; i < gi->nr_units; i++, ptr += ai->unit_size) {
                        if (gi->cpu_map[i] == NR_CPUS) {
@@ -1885,6 +1895,8 @@ void __init setup_per_cpu_areas(void)
        fc = __alloc_bootmem(unit_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
        if (!ai || !fc)
                panic("Failed to allocate memory for percpu areas.");
+       /* kmemleak tracks the percpu allocations separately */
+       kmemleak_free(fc);
 
        ai->dyn_size = unit_size;
        ai->unit_size = unit_size;