diff options
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/fs/namei.c b/fs/namei.c index 441033da002b..558ea922a515 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2912,10 +2912,22 @@ no_open: dentry = lookup_real(dir, dentry, nd->flags); if (IS_ERR(dentry)) return PTR_ERR(dentry); - } - if (create_error && !dentry->d_inode) { - error = create_error; - goto out; + + if (create_error) { + int open_flag = op->open_flag; + + error = create_error; + if ((open_flag & O_EXCL)) { + if (!dentry->d_inode) + goto out; + } else if (!dentry->d_inode) { + goto out; + } else if ((open_flag & O_TRUNC) && + d_is_reg(dentry)) { + goto out; + } + /* will fail later, go on to get the right error */ + } } looked_up: path->dentry = dentry; @@ -4197,11 +4209,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, bool new_is_dir = false; unsigned max_links = new_dir->i_sb->s_max_links; - /* - * Check source == target. - * On overlayfs need to look at underlying inodes. - */ - if (vfs_select_inode(old_dentry, 0) == vfs_select_inode(new_dentry, 0)) + if (source == target) return 0; error = may_delete(old_dir, old_dentry, is_dir); |