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libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc

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Fix a typo that used the wrong bitmask for the pg.seed calculation.  This
is normally unnoticed because in most cases pg_num == pgp_num.  It is, however,
a bug that is easily corrected.

CC: stable@vger.kernel.org
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <alex.elder@linary.org>
This commit is contained in:
Sage Weil 2013-08-28 17:17:29 -07:00
parent 17c1cc1d92
commit 9542cf0bf9
1 changed files with 1 additions and 1 deletions
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2
net/ceph/osdmap.c
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@ -1129,7 +1129,7 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
/* pg_temp? */
pgid.seed = ceph_stable_mod(pgid.seed, pool->pg_num,
pool->pgp_num_mask);
pool->pg_num_mask);
pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid);
if (pg) {
*num = pg->len;