Fix possible journal corruption caused by concurrent flushing and writing of the same journal sector

2020-03-08 01:21:19 +03:00
parent 1696446545
commit c863543bfe
6 changed files with 48 additions and 13 deletions
@@ -137,8 +137,12 @@ struct journal_t

    uint64_t block_size = 512;
    uint64_t offset, len;
+    // Next free block offset
    uint64_t next_free = 0;
+    // First occupied block offset
    uint64_t used_start = 0;
+    // End of the last block not used for writing anymore
+    uint64_t dirty_start = 0;
    uint32_t crc32_last = 0;

    // Current sector(s) used for writing