Commit 9542cf0b authored by Sage Weil's avatar Sage Weil
Browse files

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



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: default avatarSage Weil <sage@inktank.com>
Reviewed-by: default avatarAlex Elder <alex.elder@linary.org>
parent 17c1cc1d

net/ceph/osdmap.c

+1 −1
Original line number Diff line number Diff line
@@ -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;