From: Zorro Lang <zlang@redhat.com>
Date: Mon, 26 Apr 2021 15:25:18 +0000 (+0200)
Subject: copy: do not refuse to copy a swap file
X-Git-Tag: v9.0~119
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=785478013b416cde50794be35475c0c4fdbb48b4;p=thirdparty%2Fcoreutils.git

copy: do not refuse to copy a swap file

* src/copy.c (sparse_copy): Fallback to read() if copy_file_range()
fails with ETXTBSY.  Otherwise it would be impossible to copy files
that are being used as swap.  This used to work before introducing
the support for copy_file_range() in coreutils.  (Bug#48036)
---

diff --git a/src/copy.c b/src/copy.c
index 9dbc694ebe..b7ec9747fa 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -290,7 +290,7 @@ sparse_copy (int src_fd, int dest_fd, char *buf, size_t buf_size,
         if (n_copied < 0)
           {
             if (errno == ENOSYS || errno == EINVAL
-                || errno == EBADF || errno == EXDEV)
+                || errno == EBADF || errno == EXDEV || errno == ETXTBSY)
               break;
             if (errno == EINTR)
               n_copied = 0;