diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-01-29 18:43:25 +0530 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-14 09:15:28 -0400 |
| commit | 5fe0c2378884e68beb532f5890cc0e3539ac747b (patch) | |
| tree | be25414052184e146049ea6466854366559d5528 /fs/exportfs | |
| parent | c8b91accfa1059d5565443193d89572eca2f5dd6 (diff) | |
| download | lwn-5fe0c2378884e68beb532f5890cc0e3539ac747b.tar.gz lwn-5fe0c2378884e68beb532f5890cc0e3539ac747b.zip | |
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/exportfs')
| -rw-r--r-- | fs/exportfs/expfs.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index 4b6825740dd5..cfe55731b6dc 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -320,9 +320,14 @@ static int export_encode_fh(struct dentry *dentry, struct fid *fid, struct inode * inode = dentry->d_inode; int len = *max_len; int type = FILEID_INO32_GEN; - - if (len < 2 || (connectable && len < 4)) + + if (connectable && (len < 4)) { + *max_len = 4; + return 255; + } else if (len < 2) { + *max_len = 2; return 255; + } len = 2; fid->i32.ino = inode->i_ino; |