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[14/19] crush: add SET_CHOOSE_TRIES rule step

Message ID 1387818590-30483-15-git-send-email-ilya.dryomov@inktank.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ilya Dryomov Dec. 23, 2013, 5:09 p.m. UTC 
Since we can specify the recursive retries in a rule, we may as well also
specify the non-recursive tries too for completeness.

Reflects ceph.git commit d1b97462cffccc871914859eaee562f2786abfd1.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
---
 include/linux/crush/crush.h |    3 ++-
 net/ceph/crush/mapper.c     |    5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 07b8fd4f81fc..5f95969347ec 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -47,7 +47,8 @@  enum {
 	CRUSH_RULE_CHOOSE_LEAF_FIRSTN = 6,
 	CRUSH_RULE_CHOOSE_LEAF_INDEP = 7,
 
-	CRUSH_RULE_SET_CHOOSE_LEAF_TRIES = 9,
+	CRUSH_RULE_SET_CHOOSE_TRIES = 8, /* override choose_total_tries */
+	CRUSH_RULE_SET_CHOOSE_LEAF_TRIES = 9, /* override chooseleaf_descend_once */
 };
 
 /*
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index c34320518c8b..a1acdea935bf 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -661,6 +661,11 @@  int crush_do_rule(const struct crush_map *map,
 			wsize = 1;
 			break;
 
+		case CRUSH_RULE_SET_CHOOSE_TRIES:
+			if (curstep->arg1 > 0)
+				choose_tries = curstep->arg1;
+			break;
+
 		case CRUSH_RULE_SET_CHOOSE_LEAF_TRIES:
 			if (curstep->arg1 > 0)
 				choose_leaf_tries = curstep->arg1;