On Fri, Jun 15, 2012 at 05:57:42PM -0600, Linus Torvalds wrote:

On Fri, Jun 15, 2012 at 11:09 AM, Chris Mason [off-list ref] wrote:

quoted

Please pull my for-linus branch:

git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus

This seems to introduce a new warning:

  In file included from fs/btrfs/ctree.c:22:0:
  fs/btrfs/ctree.c: In function ‘btrfs_search_old_slot’:
  fs/btrfs/ctree.h:2117:240: warning: ‘old_generation’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
  fs/btrfs/ctree.c:1178:6: note: ‘old_generation’ was declared here

which looks like just gcc being unable to see that it is only used
when set, but it's still annoying. I'd suggest initializing it to 0
just to shut up the compiler. Ok?

Yes, this does look like noise.  It is only used when old_root is set,
but it'll be really easy to add bugs there later.

I've pushed two commits out, the second one is a printk cast on 32 bit
machines.  Neither of these are fatal but they are in for-linus:

git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus

Chris Mason (2) commits (+3/-2):
    Btrfs: cast devid to unsigned long long for printk %llu (+2/-1)
    Btrfs: init old_generation in get_old_root (+1/-1)

Total: (2) commits (+3/-2)

 fs/btrfs/ctree.c |    2 +-
 fs/btrfs/ioctl.c |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)