#include <linux/hardirq.h>
#include "extent_map.h"
-/* temporary define until extent_map moves out of btrfs */
-struct kmem_cache *btrfs_cache_create(const char *name, size_t size,
- unsigned long extra_flags,
- void (*ctor)(void *, struct kmem_cache *,
- unsigned long));
static struct kmem_cache *extent_map_cache;
int __init extent_map_init(void)
{
- extent_map_cache = btrfs_cache_create("extent_map",
- sizeof(struct extent_map), 0,
- NULL);
+ extent_map_cache = kmem_cache_create("extent_map",
+ sizeof(struct extent_map), 0,
+ SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL);
if (!extent_map_cache)
return -ENOMEM;
return 0;
tree->map.rb_node = NULL;
spin_lock_init(&tree->lock);
}
-EXPORT_SYMBOL(extent_map_tree_init);
/**
* alloc_extent_map - allocate new extent map structure
atomic_set(&em->refs, 1);
return em;
}
-EXPORT_SYMBOL(alloc_extent_map);
/**
* free_extent_map - drop reference count of an extent_map
kmem_cache_free(extent_map_cache, em);
}
}
-EXPORT_SYMBOL(free_extent_map);
static struct rb_node *tree_insert(struct rb_root *root, u64 offset,
struct rb_node *node)
out:
return ret;
}
-EXPORT_SYMBOL(add_extent_mapping);
/* simple helper to do math around the end of an extent, handling wrap */
static u64 range_end(u64 start, u64 len)
out:
return em;
}
-EXPORT_SYMBOL(lookup_extent_mapping);
/**
* remove_extent_mapping - removes an extent_map from the extent tree
em->in_tree = 0;
return ret;
}
-EXPORT_SYMBOL(remove_extent_mapping);