LU-169 clio: restart clio operations if layout changes

[fs/lustre-release.git] / lustre / lclient / glimpse.c

diff --git a/lustre/lclient/glimpse.c b/lustre/lclient/glimpse.c
index 31acda0..d03b855 100644 (file)
--- a/lustre/lclient/glimpse.c
+++ b/lustre/lclient/glimpse.c
@@ -224,6 +224,7 @@ int cl_glimpse_size0(struct inode *inode, int agl)
 
         result = cl_io_get(inode, &env, &io, &refcheck);
         if (result > 0) {
+       again:
                 result = cl_io_init(env, io, CIT_MISC, io->ci_obj);
                 if (result > 0)
                         /*
@@ -235,9 +236,11 @@ int cl_glimpse_size0(struct inode *inode, int agl)
                         result = cl_glimpse_lock(env, io, inode, io->ci_obj,
                                                  agl);
                 cl_io_fini(env, io);
-                cl_env_put(env, &refcheck);
-        }
-        RETURN(result);
+               if (unlikely(io->ci_need_restart))
+                       goto again;
+               cl_env_put(env, &refcheck);
+       }
+       RETURN(result);
 }
 
 int cl_local_size(struct inode *inode)