With overlayfs, it is wrong to compare file_inode(inode)->i_sb of regular files with those of non-regular files, because the former reference the real (upper/lower) sb and the latter reference the overlayfs sb. Move the test for same super block after the sanity tests for clone range of directory and non-regular file. This change fixes xfstest generic/157, which returned EXDEV instead of EISDIR/EINVAL in the following test cases over overlayfs: echo "Try to reflink a dir" _reflink_range $testdir1/dir1 0 $testdir1/file2 0 $blksz echo "Try to reflink a device" _reflink_range $testdir1/dev1 0 $testdir1/file2 0 $blksz Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> --- fs/read_write.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index 1244bd5..d547301 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1657,6 +1657,11 @@ int vfs_clone_file_range(struct file *file_in, loff_t pos_in, struct inode *inode_out = file_inode(file_out); int ret; + if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode)) + return -EISDIR; + if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) + return -EINVAL; + /* * FICLONE/FICLONERANGE ioctls enforce that src and dest files are on * the same mount. Practically, they only need to be on the same file @@ -1665,11 +1670,6 @@ int vfs_clone_file_range(struct file *file_in, loff_t pos_in, if (inode_in->i_sb != inode_out->i_sb) return -EXDEV; - if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode)) - return -EISDIR; - if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) - return -EINVAL; - if (!(file_in->f_mode & FMODE_READ) || !(file_out->f_mode & FMODE_WRITE) || (file_out->f_flags & O_APPEND)) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
