Re: Btrfs stable updates for v3.16

["Holger Hoffstätte" <holger.hoffstaette@googlemail.com>]

On Wed, 03 Sep 2014 16:50:47 -0400, Chris Mason wrote:

> Hi everyone,
> 
> For 3.16, please pull these into stable, I've cherry picked and tested
> them here.  For 3.15 and earlier there are a few conflicts, so I'll make
> a git tree with things to pull.
> 
> 8d875f95da43c6a8f18f77869f2ef26e9594fecc v3.15+

This ("fix filemap_flush call in btrfs_file_release") is the only one 
that requires some work for 3.14.

There is one conflict in ordered.data.c - just a sligh work queue 
submission change - and the second in transaction.c where the patch does 
not delete enough from btrfs_flush_all_pending_stuffs(), since 3.14 still 
has the old qgroup calls in place. I removed it wholesale and that makes 
everything fit.

The followup ("fix filemap_flush call in btrfs_file_release") then also 
applies.

Should they also go into the next 3.14.x stable cycle? This rename 
deadlock sounds like a possible problem with rsync, which seems like a 
popular use case, and I guess nobody will complain about slightly better 
performance either.

Holger