btrfs: add support for write stream IDs
authorJens Axboe <axboe@fb.com>
Wed, 2 Mar 2016 17:27:48 +0000 (10:27 -0700)
committerJens Axboe <axboe@fb.com>
Mon, 7 Mar 2016 15:30:50 +0000 (08:30 -0700)
commit93b4d9370250ea9273e1e71775df85964ff52922
treec0de711db7457fae6499f7dbb42f75aa1e0faac1
parentb4636e6be6e63b712854a356bb23a33ed3f32fe5
btrfs: add support for write stream IDs

Both buffered and O_DIRECT supported, and support for iterating
the below backing devices for open/close of streams.

Signed-off-by: Jens Axboe <axboe@fb.com>
fs/btrfs/disk-io.c
fs/btrfs/extent_io.c
fs/btrfs/inode.c