libceph: decode into cpu-native ceph_pg type

Always decode data into our cpu-native ceph_pg type that has the correct
field widths.  Limit any remaining uses of ceph_pg_v1 to dealing with the
legacy protocol.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index e831436d6e68..fb036ed3e129 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -186,7 +186,7 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
         u64 len = 1, olen;
         u64 tmp;
         struct ceph_object_layout ol;
-        struct ceph_pg_v1 pgid;
+        struct ceph_pg pgid;
         int r;
 
         /* copy and validate */
@@ -212,7 +212,8 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
         ceph_calc_object_layout(&ol, dl.object_name, &ci->i_layout,
                                 osdc->osdmap);
 
-        pgid = ol.ol_pgid;
+        pgid.pool = le32_to_cpu(ol.ol_pgid.pool);
+        pgid.seed = le16_to_cpu(ol.ol_pgid.ps);
         dl.osd = ceph_calc_pg_primary(osdc->osdmap, pgid);
         if (dl.osd >= 0) {
                 struct ceph_entity_addr *a =