exportfs: Return the minimum required handle size
The exportfs encode handle function should return the minimum required
handle size. This helps user to find out the handle size by passing 0
handle size in the first step and then redoing to the call again with
the returned handle size value.
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 9e3f68c..051b1a0 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -637,8 +637,10 @@
u64 nodeid;
u32 generation;
- if (*max_len < len)
+ if (*max_len < len) {
+ *max_len = len;
return 255;
+ }
nodeid = get_fuse_inode(inode)->nodeid;
generation = inode->i_generation;