• NeilBrown's avatar
    md: tidy up rdev_for_each usage. · dafb20fa
    NeilBrown authored
    md.h has an 'rdev_for_each()' macro for iterating the rdevs in an
    mddev.  However it uses the 'safe' version of list_for_each_entry,
    and so requires the extra variable, but doesn't include 'safe' in the
    name, which is useful documentation.
    Consequently some places use this safe version without needing it, and
    many use an explicity list_for_each entry.
     - rename rdev_for_each to rdev_for_each_safe
     - create a new rdev_for_each which uses the plain
     - use the 'safe' version only where needed, and convert all other
       list_for_each_entry calls to use rdev_for_each.
    Signed-off-by: default avatarNeilBrown <neilb@suse.de>