[block-manager] ensure the superblock cannot be taken concurrently with any other lock.

2014-08-21 12:18:05 +01:00
parent 3724f78a13
commit 0d3942cae8
4 changed files with 13 additions and 1 deletions
--- a/block-cache/block_cache.h
+++ b/block-cache/block_cache.h
@@ -119,6 +119,7 @@ namespace bcache {
 		~block_cache();

 		uint64_t get_nr_blocks() const;
+		uint64_t get_nr_locked() const;

 		enum get_flags {
 			GF_ZERO = (1 << 0),