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| author | Ilya Dryomov <ilya.dryomov@inktank.com> | 2014-04-10 16:09:41 +0200 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2014-04-28 21:54:10 +0200 |
| commit | 92b2e75158f6b8316b5a567c73dcf5b3d8f6bbce (patch) | |
| tree | f5e7f7e2e8e706000aa1cd4128f19fbef3609f42 /net/ceph | |
| parent | ceph: use fpos_cmp() to compare dentry positions (diff) | |
| download | linux-92b2e75158f6b8316b5a567c73dcf5b3d8f6bbce.tar.xz linux-92b2e75158f6b8316b5a567c73dcf5b3d8f6bbce.zip | |
libceph: fix non-default values check in apply_primary_affinity()
osd_primary_affinity array is indexed into incorrectly when checking
for non-default primary-affinity values. This nullifies the impact of
the rest of the apply_primary_affinity() and results in misdirected
requests.
if (osds[i] != CRUSH_ITEM_NONE &&
osdmap->osd_primary_affinity[i] !=
^^^
CEPH_OSD_DEFAULT_PRIMARY_AFFINITY) {
For a pool with size 2, this always ends up checking osd0 and osd1
primary_affinity values, instead of the values that correspond to the
osds in question. E.g., given a [2,3] up set and a [max,max,0,max]
primary affinity vector, requests are still sent to osd2, because both
osd0 and osd1 happen to have max primary_affinity values and therefore
we return from apply_primary_affinity() early on the premise that all
osds in the given set have max (default) values. Fix it.
Fixes: http://tracker.ceph.com/issues/7954
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net/ceph')
| -rw-r--r-- | net/ceph/osdmap.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index e632b5a52f5b..8b8a5a24b223 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -1548,8 +1548,10 @@ static void apply_primary_affinity(struct ceph_osdmap *osdmap, u32 pps, return; for (i = 0; i < len; i++) { - if (osds[i] != CRUSH_ITEM_NONE && - osdmap->osd_primary_affinity[i] != + int osd = osds[i]; + + if (osd != CRUSH_ITEM_NONE && + osdmap->osd_primary_affinity[osd] != CEPH_OSD_DEFAULT_PRIMARY_AFFINITY) { break; } @@ -1563,10 +1565,9 @@ static void apply_primary_affinity(struct ceph_osdmap *osdmap, u32 pps, * osd's pgs get rejected as primary. */ for (i = 0; i < len; i++) { - int osd; + int osd = osds[i]; u32 aff; - osd = osds[i]; if (osd == CRUSH_ITEM_NONE) continue; |