From ee7fdfaff7702bd209e3a013b2fc4643233f5465 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 19 Oct 2009 11:41:51 -0700 Subject: [PATCH] ceph: include preferred osd in placement seed Mix the preferred osd (if any) into the placement seed that is fed into the CRUSH object placement calculation. This prevents all the placement pgs from peering with the same osds. Rev the osd client protocol with this change. Signed-off-by: Sage Weil --- fs/ceph/ceph_fs.h | 2 +- fs/ceph/osdmap.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h index 9b16e2e..f8f27e2 100644 --- a/fs/ceph/ceph_fs.h +++ b/fs/ceph/ceph_fs.h @@ -38,7 +38,7 @@ #define CEPH_OSD_PROTOCOL 7 /* cluster internal */ #define CEPH_MDS_PROTOCOL 9 /* cluster internal */ #define CEPH_MON_PROTOCOL 5 /* cluster internal */ -#define CEPH_OSDC_PROTOCOL 20 /* server/client */ +#define CEPH_OSDC_PROTOCOL 21 /* server/client */ #define CEPH_MDSC_PROTOCOL 29 /* server/client */ #define CEPH_MONC_PROTOCOL 15 /* server/client */ diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c index 6f0aeff..72d75a2 100644 --- a/fs/ceph/osdmap.c +++ b/fs/ceph/osdmap.c @@ -791,6 +791,8 @@ int ceph_calc_object_layout(struct ceph_object_layout *ol, pgid.pg64 = 0; /* start with it zeroed out */ pgid.pg.ps = ceph_full_name_hash(oid, strlen(oid)); pgid.pg.preferred = preferred; + if (preferred >= 0) + pgid.pg.ps += preferred; pgid.pg.pool = le32_to_cpu(fl->fl_pg_pool); if (preferred >= 0) dout("calc_object_layout '%s' pgid %d.%xp%d (%llx)\n", oid, -- 2.7.4