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authorTrond Myklebust <Trond.Myklebust@netapp.com>2005-10-18 14:20:22 -0700
committerTrond Myklebust <Trond.Myklebust@netapp.com>2005-10-18 14:20:22 -0700
commit6fe43f9e3701f7a9f2be151a5e6cfe94b87e92f9 (patch)
treeedf67143a032c7b7867ee999f1deb01437a6bc99 /fs/nfs
parent4c780a4688b421baa896b59778c05d7e068e479f (diff)
downloadop-kernel-dev-6fe43f9e3701f7a9f2be151a5e6cfe94b87e92f9.zip
op-kernel-dev-6fe43f9e3701f7a9f2be151a5e6cfe94b87e92f9.tar.gz
NFS: Fix rename of directory onto empty directory
If someone tries to rename a directory onto an empty directory, we currently fail and return EBUSY. This patch ensures that we try the rename if both source and target are directories, and that we fail with a correct error of EISDIR if the source is not a directory. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/dir.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 72f50c0..eb50c19 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1511,9 +1511,11 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
if (!new_inode)
goto go_ahead;
- if (S_ISDIR(new_inode->i_mode))
- goto out;
- else if (atomic_read(&new_dentry->d_count) > 2) {
+ if (S_ISDIR(new_inode->i_mode)) {
+ error = -EISDIR;
+ if (!S_ISDIR(old_inode->i_mode))
+ goto out;
+ } else if (atomic_read(&new_dentry->d_count) > 2) {
int err;
/* copy the target dentry's name */
dentry = d_alloc(new_dentry->d_parent,
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