tree c3d05588c3cf73453673206214fadedc07bd79d7
parent 98509cfc5a6857bddcfe4b19a9539726655ec9bd
author Chris Mason <chris.mason@oracle.com> 1221162792 -0400
committer Chris Mason <chris.mason@oracle.com> 1222355047 -0400

Btrfs: Dir fsync optimizations

Drop i_mutex during the commit

Don't bother doing the fsync at all unless the dir is marked as dirtied
and needing fsync in this transaction.  For directories, this means
that someone has unlinked a file from the dir without fsyncing the
file.

Signed-off-by: Chris Mason <chris.mason@oracle.com>