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-rw-r--r--fs/namei.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/fs/namei.c b/fs/namei.c
index b7cd65224d6..18894fdf048 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2170,16 +2170,19 @@ static long do_rmdir(int dfd, const char __user *pathname)
return error;
switch(nd.last_type) {
- case LAST_DOTDOT:
- error = -ENOTEMPTY;
- goto exit1;
- case LAST_DOT:
- error = -EINVAL;
- goto exit1;
- case LAST_ROOT:
- error = -EBUSY;
- goto exit1;
+ case LAST_DOTDOT:
+ error = -ENOTEMPTY;
+ goto exit1;
+ case LAST_DOT:
+ error = -EINVAL;
+ goto exit1;
+ case LAST_ROOT:
+ error = -EBUSY;
+ goto exit1;
}
+
+ nd.flags &= ~LOOKUP_PARENT;
+
mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_hash(&nd);
error = PTR_ERR(dentry);
@@ -2257,6 +2260,9 @@ static long do_unlinkat(int dfd, const char __user *pathname)
error = -EISDIR;
if (nd.last_type != LAST_NORM)
goto exit1;
+
+ nd.flags &= ~LOOKUP_PARENT;
+
mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_hash(&nd);
error = PTR_ERR(dentry);
@@ -2646,6 +2652,9 @@ asmlinkage long sys_renameat(int olddfd, const char __user *oldname,
if (newnd.last_type != LAST_NORM)
goto exit2;
+ oldnd.flags &= ~LOOKUP_PARENT;
+ newnd.flags &= ~LOOKUP_PARENT;
+
trap = lock_rename(new_dir, old_dir);
old_dentry = lookup_hash(&oldnd);