- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.

[linux-flexiantxendom0-3.2.10.git] / fs / nilfs2 / alloc.h

diff --git a/fs/nilfs2/alloc.h b/fs/nilfs2/alloc.h
index 4ace547..f4543ac 100644 (file)
--- a/fs/nilfs2/alloc.h
+++ b/fs/nilfs2/alloc.h
@@ -69,4 +69,25 @@ int nilfs_palloc_freev(struct inode *, __u64 *, size_t);
 #define nilfs_clear_bit_atomic         ext2_clear_bit_atomic
 #define nilfs_find_next_zero_bit       ext2_find_next_zero_bit
 
+/*
+ * persistent object allocator cache
+ */
+
+struct nilfs_bh_assoc {
+       unsigned long blkoff;
+       struct buffer_head *bh;
+};
+
+struct nilfs_palloc_cache {
+       spinlock_t lock;
+       struct nilfs_bh_assoc prev_desc;
+       struct nilfs_bh_assoc prev_bitmap;
+       struct nilfs_bh_assoc prev_entry;
+};
+
+void nilfs_palloc_setup_cache(struct inode *inode,
+                             struct nilfs_palloc_cache *cache);
+void nilfs_palloc_clear_cache(struct inode *inode);
+void nilfs_palloc_destroy_cache(struct inode *inode);
+
 #endif /* _NILFS_ALLOC_H */