• Sage Weil's avatar
    Btrfs: add flushoncommit mount option · dccae999
    Sage Weil authored
    
    
    The 'flushoncommit' mount option forces any data dirtied by a write in a
    prior transaction to commit as part of the current commit.  This makes
    the committed state a fully consistent view of the file system from the
    application's perspective (i.e., it includes all completed file system
    operations).  This was previously the behavior only when a snapshot is
    created.
    
    This is used by Ceph to ensure that completed writes make it to the
    platter along with the metadata operations they are bound to (by
    BTRFS_IOC_TRANS_{START,END}).
    Signed-off-by: default avatarSage Weil <sage@newdream.net>
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
    dccae999
ctree.h 71 KB