| From | Greg Kroah-Hartman <> | Subject | [ 107/117] libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc | Date | Tue, 24 Sep 2013 17:19:33 -0700 |
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3.11-stable review patch. If anyone has any objections, please let me know.
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From: Sage Weil <sage@inktank.com>
commit 9542cf0bf9b1a3adcc2ef271edbcbdba03abf345 upstream.
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.
Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <alex.elder@linary.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/ceph/osdmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -1129,7 +1129,7 @@ static int *calc_pg_raw(struct ceph_osdm /* 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;
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