• Chris Mason's avatar
    Btrfs: don't clean old snapshots on sync(1) · e1df36d2
    Chris Mason authored
    Cleaning old snapshots can make sync(1) somewhat slow, and some users
    and applications still use it in a global fsync kind of workload.
    
    This patch changes btrfs not to clean old snapshots during sync, which is
    safe from a FS consistency point of view.  The major downside is that it
    makes it difficult to tell when old snapshots have been reaped and
    the space they were using has been reclaimed.  A new ioctl will be added
    for this purpose instead.
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
    e1df36d2
super.c 16.5 KB