WL#3072 Maria Recovery. Making DDLs durable in Maria:

Sync table files after CREATE (of non-temp table), DROP, RENAME,
TRUNCATE, sync directories and symlinks (for the 3 first commands).
Comments for future log records.
In ma_rename(), if rename of index works and then rename of data fails,
try to undo the rename of the index to leave a consistent state.


mysys/my_symlink.c:
  sync directory after creation of a symbolic link in it, if asked
mysys/my_sync.c:
  comment. Fix for when the file's name has no directory in it.
storage/maria/ma_create.c:
  sync files and links and dirs when creating a non-temporary table.
  Optimizations of the above to reduce syncs in the common cases:
  * if index file and data file have the exact same paths (regular
  and link), sync the directories (of regular and link) only once
  after creating the last file (the data file).
  * don't sync the data file if we didn't write to it (always true
  in our builds).
storage/maria/ma_delete_all.c:
  sync files after truncating a table
storage/maria/ma_delete_table.c:
  sync files and symbolic links and dirs after dropping a table
storage/maria/ma_extra.c:
  a function which wraps the sync of the index file and the sync of the
  data file.
storage/maria/ma_locking.c:
  using a wrapper function
storage/maria/ma_rename.c:
  sync files and symbolic links and dirs after renaming a table.
  If rename of index works and then rename of data fails, try to undo
  the rename of the index to leave a consistent state. That is just a
  try, it may fail...
storage/maria/ma_test3.c:
  warning to not pay attention to this test.
storage/maria/maria_def.h:
  declaration for the function added to ma_extra.c

1 files changed, 1 insertions, 3 deletions

diff --git a/storage/maria/ma_locking.c b/storage/maria/ma_locking.c
index 5689d57f2a5..848fb7e9682 100644
--- a/storage/maria/ma_locking.c
+++ b/storage/maria/ma_locking.c
@@ -103,9 +103,7 @@ int maria_lock_database(MARIA_HA *info, int lock_type)
 	  share->changed=0;
 	  if (maria_flush)
 	  {
-	    if (my_sync(share->kfile, MYF(0)))
-	      error= my_errno;
-	    if (my_sync(info->dfile, MYF(0)))
+            if (_ma_sync_table_files(info))
 	      error= my_errno;
 	  }
 	  else