Hi! So, it makes sense to keep the compression on by default and with LZO many people are going there. But, I want to create a database on a compressed btrfs filesystem which is seek-heavy rather than throughput-heavy and I really want to turn the compression off just for that database (smaller I/O reads, more precise cache usage). Maintenance nightmare that Miguel mentioned ( http://thread.gmane.org/gmane.comp.file-systems.btrfs/1665/focus=1669 ) isn't really a problem as I'm going to automatically set the flags from the program, just before opening the database. Looking at "fs/btrfs/ioctl.h" I don't see any way to to this. Subvolume compression control isn't working either from what I heard (cf. https://bbs.archlinux.org/viewtopic.php?id=126635 http://thread.gmane.org/gmane.comp.file-systems.btrfs/6237/ ). Am I right that fine-grained compression control is no longer supported by btrfs? If so, I would like to vote for it to be added. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
