tree 78984357ac4b19d53b8e51ad70c81be12d50e81c
parent e8ef19c4ad161768e1d8309d5ae18481c098eb81
author Ilya Dryomov <ilya.dryomov@inktank.com> 1387912765 +0200
committer Ilya Dryomov <ilya.dryomov@inktank.com> 1388514735 +0200

crush: return CRUSH_ITEM_UNDEF for failed placements with indep

For firstn mode, if we fail to make a valid placement choice, we just
continue and return a short result to the caller.  For indep mode, however,
we need to make the position stable, and return an undefined value on
failed placements to avoid shifting later results to the left.

Reflects ceph.git commit b1d4dd4eb044875874a1d01c01c7d766db5d0a80.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>