On Tue, Apr 11, 2017 at 12:15:32PM -0700, Amin Hassani wrote: > I am working on a project with Btrfs and I was wondering if there is > any way to see the disk layout of the btrfs image. Let's assume I have > a read-only btrfs image with compression on and only using one disk > (no raid or anything). Is it possible to get a set of offset-lengths > for each file While btrfs-specific ioctls give more information, you might want to look at FIEMAP (Documentation/filesystems/fiemap.txt) as it works on most filesystems, not just btrfs. One interface to FIEMAP is provided in "/usr/sbin/filefrag -v". -- ⢀⣴⠾⠻⢶⣦⠀ Meow! ⣾⠁⢠⠒⠀⣿⡁ ⢿⡄⠘⠷⠚⠋⠀ Collisions shmolisions, let's see them find a collision or second ⠈⠳⣄⠀⠀⠀⠀ preimage for double rot13! -- 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
