ceph: Update max_len with minimum required size
encode_fh on error should update max_len with minimum required
size, so that caller can redo the call with the reallocated buffer.
This is required with open by handle patch series
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 387c582..e38423e 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -62,13 +62,16 @@
*max_len = connected_handle_length;
type = 2;
} else if (*max_len >= handle_length) {
- if (connectable)
+ if (connectable) {
+ *max_len = connected_handle_length;
return 255;
+ }
dout("encode_fh %p\n", dentry);
fh->ino = ceph_ino(dentry->d_inode);
*max_len = handle_length;
type = 1;
} else {
+ *max_len = handle_length;
return 255;
}
return type;