On Fri, Aug 13, 2010 at 06:22:00AM +0800, bchociej@xxxxxxxxx wrote: > > - Hooks in existing Btrfs functions to track data access frequency > (btrfs_direct_IO, btrfs_readpages, and extent_write_cache_pages) > > - New rbtrees for tracking access frequency of inodes and sub-file > ranges (hotdata_map.c) > > - A hash list for indexing data by its temperature (hotdata_hash.c) > > - A debugfs interface for dumping data from the rbtrees (debugfs.c) > > - A background kthread for relocating data to faster media based on > temperature Hi, I'm wondering if the temperature info can be exported to userspace, and let a daemon to do the relocation (by ioctl). A userspace daemon is more flexible. Thanks, Shaohua -- 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
