dlm: free workqueues after the connections

[cascardo/linux.git] / lib / genalloc.c

diff --git a/lib/genalloc.c b/lib/genalloc.c
index b8cf89d..0a11396 100644 (file)
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -555,6 +555,38 @@ unsigned long gen_pool_first_fit_align(unsigned long *map, unsigned long size,
 }
 EXPORT_SYMBOL(gen_pool_first_fit_align);
 
+/**
+ * gen_pool_fixed_alloc - reserve a specific region
+ * @map: The address to base the search on
+ * @size: The bitmap size in bits
+ * @start: The bitnumber to start searching at
+ * @nr: The number of zeroed bits we're looking for
+ * @data: data for alignment
+ * @pool: pool to get order from
+ */
+unsigned long gen_pool_fixed_alloc(unsigned long *map, unsigned long size,
+               unsigned long start, unsigned int nr, void *data,
+               struct gen_pool *pool)
+{
+       struct genpool_data_fixed *fixed_data;
+       int order;
+       unsigned long offset_bit;
+       unsigned long start_bit;
+
+       fixed_data = data;
+       order = pool->min_alloc_order;
+       offset_bit = fixed_data->offset >> order;
+       if (WARN_ON(fixed_data->offset & ((1UL << order) - 1)))
+               return size;
+
+       start_bit = bitmap_find_next_zero_area(map, size,
+                       start + offset_bit, nr, 0);
+       if (start_bit != offset_bit)
+               start_bit = size;
+       return start_bit;
+}
+EXPORT_SYMBOL(gen_pool_fixed_alloc);
+
 /**
  * gen_pool_first_fit_order_align - find the first available region
  * of memory matching the size requirement. The region will be aligned