• J
    dcache: d_obtain_alias callers don't all want DISCONNECTED · 1a0a397e
    J. Bruce Fields 提交于
    There are a few d_obtain_alias callers that are using it to get the
    root of a filesystem which may already have an alias somewhere else.
    
    This is not the same as the filehandle-lookup case, and none of them
    actually need DCACHE_DISCONNECTED set.
    
    It isn't really a serious problem, but it would really be clearer if we
    reserved DCACHE_DISCONNECTED for those cases where it's actually needed.
    
    In the btrfs case this was causing a spurious printk from
    nfsd/nfsfh.c:fh_verify when it found an unexpected DCACHE_DISCONNECTED
    dentry.  Josef worked around this by unsetting DCACHE_DISCONNECTED
    manually in 3a0dfa6a "Btrfs: unset DCACHE_DISCONNECTED when mounting
    default subvol", and this replaces that workaround.
    
    Cc: Josef Bacik <jbacik@fb.com>
    Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
    Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
    1a0a397e
super.c 35.8 KB