Ilya Dryomov d390bb2a83 crush: generalize descend_once ... The legacy behavior is to make the normal number of tries for the recursive chooseleaf call. The descend_once tunable changed this to making a single try and bail if we get a reject (note that it is impossible to collide in the recursive case). The new set_chooseleaf_tries lets you select the number of recursive chooseleaf attempts for indep mode, or default to 1. Use the same behavior for firstn, except default to total_tries when the legacy tunables are set (for compatibility). This makes the rule step override the (new) default of 1 recursive attempt, keeping behavior consistent with indep mode. Reflects ceph.git commit 685c6950ef3df325ef04ce7c986e36ca2514c5f1. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>		2013-12-31 20:32:25 +02:00
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crush.c	crush: factor out (trivial) crush_destroy_rule()	2013-12-31 20:32:11 +02:00
hash.c	ceph: factor out libceph from Ceph file system	2010-10-20 15:37:28 -07:00
mapper.c	crush: generalize descend_once	2013-12-31 20:32:25 +02:00