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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-01-29 16:13:25 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-14 16:15:28 +0300
commit5fe0c2378884e68beb532f5890cc0e3539ac747b (patch)
treebe25414052184e146049ea6466854366559d5528 /fs/reiserfs
parentc8b91accfa1059d5565443193d89572eca2f5dd6 (diff)
downloadlinux-5fe0c2378884e68beb532f5890cc0e3539ac747b.tar.xz
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>
Diffstat (limited to 'fs/reiserfs')
-rw-r--r--fs/reiserfs/inode.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 0bae036831e2..1bba24bad820 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1593,8 +1593,13 @@ int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp,
struct inode *inode = dentry->d_inode;
int maxlen = *lenp;
- if (maxlen < 3)
+ if (need_parent && (maxlen < 5)) {
+ *lenp = 5;
return 255;
+ } else if (maxlen < 3) {
+ *lenp = 3;
+ return 255;
+ }
data[0] = inode->i_ino;
data[1] = le32_to_cpu(INODE_PKEY(inode)->k_dir_id);