From: Valerie Aurora <vaurora@xxxxxxxxxx>
Whiteout a deleted directory in a union mounted file system.
Signed-off-by: Valerie Aurora <valerie.aurora@xxxxxxxxx>
---
fs/namei.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c
index 83f9c62..9c6803a 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2597,11 +2597,6 @@ static long do_rmdir(int dfd, const char __user *pathname)
if (error)
return error;
- /* rmdir() on union mounts not implemented yet */
- error = -EINVAL;
- if (IS_DIR_UNIONED(nd.path.dentry))
- goto exit1;
-
switch(nd.last_type) {
case LAST_DOTDOT:
error = -ENOTEMPTY;
@@ -2626,6 +2621,10 @@ static long do_rmdir(int dfd, const char __user *pathname)
error = security_path_rmdir(&nd.path, path.dentry);
if (error)
goto exit4;
+ if (IS_DIR_UNIONED(nd.path.dentry)) {
+ error = do_whiteout(&nd, &path, 1);
+ goto exit4;
+ }
error = vfs_rmdir(nd.path.dentry->d_inode, path.dentry);
exit4:
mnt_drop_write(nd.path.mnt);
--
1.7.0.4
--
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