ceph: update i_max_size even if inode version does not change

handle following sequence of events:
 - client releases a inode with i_max_size > 0. The release message
   is queued. (is not sent to the auth MDS)
 - a 'lookup' request reply from non-auth MDS returns the same inode.
 - client opens the inode in write mode. The version of inode trace
   in 'open' request reply is equal to the cached inode's version.
 - client requests new max size. The MDS ignores the request because
   it does not affect client's write range

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 91d6c9d49e3e..1a37ee77e001 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -659,14 +659,6 @@ static int fill_inode(struct inode *inode,
                             le32_to_cpu(info->time_warp_seq),
                             &ctime, &mtime, &atime);
 
-        /* only update max_size on auth cap */
-        if ((info->cap.flags & CEPH_CAP_FLAG_AUTH) &&
-            ci->i_max_size != le64_to_cpu(info->max_size)) {
-                dout("max_size %lld -> %llu\n", ci->i_max_size,
-                     le64_to_cpu(info->max_size));
-                ci->i_max_size = le64_to_cpu(info->max_size);
-        }
-
         ci->i_layout = info->layout;
         inode->i_blkbits = fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1;
 
@@ -755,6 +747,14 @@ static int fill_inode(struct inode *inode,
                 ci->i_max_offset = 2;
         }
 no_change:
+        /* only update max_size on auth cap */
+        if ((info->cap.flags & CEPH_CAP_FLAG_AUTH) &&
+            ci->i_max_size != le64_to_cpu(info->max_size)) {
+                dout("max_size %lld -> %llu\n", ci->i_max_size,
+                     le64_to_cpu(info->max_size));
+                ci->i_max_size = le64_to_cpu(info->max_size);
+        }
+
         spin_unlock(&ci->i_ceph_lock);
 
         /* queue truncate if we saw i_size decrease */