Btrfs: add mount -o auto_defrag

This will detect small random writes into files and queue the up for an auto defrag process. It isn't well suited to database workloads yet, but works for smaller files such as rpm, sqlite or bdb databases. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-24 15:35:30 -04:00
parent d6c0cb379c
commit 4cb5300bc8
8 changed files with 681 additions and 138 deletions
@@ -153,6 +153,7 @@ struct btrfs_inode {
 	unsigned ordered_data_close:1;
 	unsigned orphan_meta_reserved:1;
 	unsigned dummy_inode:1;
+	unsigned in_defrag:1;

 	/*
 	 * always compress this one file