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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-01-29 18:43:25 +0530
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-14 09:15:28 -0400
commit5fe0c2378884e68beb532f5890cc0e3539ac747b (patch)
treebe25414052184e146049ea6466854366559d5528 /fs/udf/namei.c
parentc8b91accfa1059d5565443193d89572eca2f5dd6 (diff)
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/udf/namei.c')
-rw-r--r--fs/udf/namei.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index b7c338d5e9df..f1dce848ef96 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -1286,8 +1286,13 @@ static int udf_encode_fh(struct dentry *de, __u32 *fh, int *lenp,
struct fid *fid = (struct fid *)fh;
int type = FILEID_UDF_WITHOUT_PARENT;
- if (len < 3 || (connectable && len < 5))
+ if (connectable && (len < 5)) {
+ *lenp = 5;
+ return 255;
+ } else if (len < 3) {
+ *lenp = 3;
return 255;
+ }
*lenp = 3;
fid->udf.block = location.logicalBlockNum;

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