tree 72541fb0c7c891989c2d279c4e26beea2abbca73
parent b7ec40d7845bffca8bb3af2ea3f192d6257bbe21
author Chris Mason <chris.mason@oracle.com> 1236903165 -0400
committer Chris Mason <chris.mason@oracle.com> 1237925667 -0400

Btrfs: reduce stack in cow_file_range

The fs/btrfs/inode.c code to run delayed allocation during writout
needed some stack usage optimization.  This is the first pass, it does
the check for compression earlier on, which allows us to do the common
(no compression) case higher up in the call chain.

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