tree 176c81896d74f9662d6ebc91b902804921551db7
parent bdb7d303b33c1648514c9f9461d7513a4c05ce48
author Josef Bacik <jbacik@fusionio.com> 1340831921 -0400
committer Chris Mason <chris.mason@fusionio.com> 1341257958 -0400

Btrfs: hold a ref on the inode during writepages

We can race with unlink and not actually be able to do our igrab in
btrfs_add_ordered_extent.  This will result in all sorts of problems.
Instead of doing the complicated work to try and handle returning an error
properly from btrfs_add_ordered_extent, just hold a ref to the inode during
writepages.  If we cannot grab a ref we know we're freeing this inode anyway
and can just drop the dirty pages on the floor, because screw them we're
going to invalidate them anyway.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>