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-rw-r--r--storage/xtradb/include/os0file.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/storage/xtradb/include/os0file.h b/storage/xtradb/include/os0file.h
index 4c795d93141..05403a8e752 100644
--- a/storage/xtradb/include/os0file.h
+++ b/storage/xtradb/include/os0file.h
@@ -190,6 +190,8 @@ extern ulint os_n_file_reads;
extern ulint os_n_file_writes;
extern ulint os_n_fsyncs;
+#define OS_MIN_LOG_BLOCK_SIZE 512
+
extern ulint srv_log_block_size;
#ifdef UNIV_PFS_IO