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bug#56392: `cp --reflink=always` creates empty file on failure
From: |
Benjamin Gilbert |
Subject: |
bug#56392: `cp --reflink=always` creates empty file on failure |
Date: |
Tue, 5 Jul 2022 03:41:29 -0400 |
Hi,
When `cp --reflink=always` fails because the filesystem does not
support reflinks, I'd expect it not to leave anything at the
destination path. However, it appears to leave an empty file instead:
$ ls -l
total 0
$ echo "some data" > src
$ cp --reflink=always src dest
cp: failed to clone 'dest' from 'src': Operation not supported
$ ls -l
total 4
-rw-rw-r--. 1 bgilbert bgilbert 0 Jul 5 01:27 dest
-rw-rw-r--. 1 bgilbert bgilbert 10 Jul 5 01:27 src
I'm seeing this on both coreutils 9.0 (Fedora 36) and 9.1.31-fa332
built from Git.
Best,
--Benjamin Gilbert
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