[PATCH] xfs: lock bitmap/summary inodes in xfs_rtbuf_get()

[Dave Chinner]

On Sat, Jan 30, 2016 at 03:53:48PM -0600, Eric Sandeen wrote:
> OK, thanks Dave. It seemed like it was probably too simple…

Yeah, and the simple fix (lock in xfs_bmap_rtalloc()) uncovers
further issues w.r.t. logging - the buffers are not stamped with a
type, so log recovery will not categorise them correctly.

And, I suspect, log recovery might have problems with the
bitmap/smmary buffers as they don't have magic numbers in them. More
work to be done here...

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com