unmountable filesystem...

2010-11-27 Thread Evert Vorster
Hi there... This is something weird that happened. I was having problems with having a btrfs root, so I copied the root filesystem to an external USB hard drive. Then I rebooted the computer from a CD-ROM, and re-created my root partition with ext4. Then I mounted the USB hard drive ( also

[next-rc] Compile Error fs/btrfs/diskio.c

2010-11-27 Thread Mitch Harder
I've been getting a compile error when building the 'next-rc' branch of btrfs-unstable. CC fs/btrfs/disk-io.o fs/btrfs/disk-io.c: In function ‘btree_migratepage’: fs/btrfs/disk-io.c:716: error: called object ‘0u’ is not a function make[2]: *** [fs/btrfs/disk-io.o] Error 1 make[1]: ***

mounting arbitrary directories

2010-11-27 Thread C Anthony Risinger
i have read just recently and in the past that btrfs supports COW for _any_ file/directory (this is reflinks, yes?), and today i accidentally noticed that i can mount a directory as well (if it's in the top level volume at least). eg. if i have a regular directory (not a subvolume) in the

[RFC-PATCH] Re: mounting arbitrary directories

2010-11-27 Thread Calvin Walton
On Sat, 2010-11-27 at 21:19 -0600, C Anthony Risinger wrote: i have read just recently and in the past that btrfs supports COW for _any_ file/directory (this is reflinks, yes?), and today i accidentally noticed that i can mount a directory as well (if it's in the top level volume at least).