ceph: reserve caps for file layout/lock MDS requests

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

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index efbe08289292..2042fd16d1a8 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -110,6 +110,8 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
                 return PTR_ERR(req);
         req->r_inode = inode;
         ihold(inode);
+        req->r_num_caps = 1;
+
         req->r_inode_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL;
 
         req->r_args.setlayout.layout.fl_stripe_unit =
@@ -154,6 +156,7 @@ static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg)
                 return PTR_ERR(req);
         req->r_inode = inode;
         ihold(inode);
+        req->r_num_caps = 1;
 
         req->r_args.setlayout.layout.fl_stripe_unit =
                         cpu_to_le32(l.stripe_unit);