From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Wed, 12 Oct 2022 18:04:11 +0000 (+0200)
Subject: repart: Use COPY_REFLINK in context_copy_blocks()
X-Git-Tag: v253-rc1~527^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8c467ee8ef870d172b24e716130d7a0b6b882d6b;p=thirdparty%2Fsystemd.git

repart: Use COPY_REFLINK in context_copy_blocks()

We might be copying between files without a loop device involved.
In that case, a reflink is possible and will be much faster.
---

diff --git a/src/partition/repart.c b/src/partition/repart.c
index 94a87b97883..3a4f181370a 100644
--- a/src/partition/repart.c
+++ b/src/partition/repart.c
@@ -3200,7 +3200,7 @@ static int context_copy_blocks(Context *context) {
                 log_info("Copying in '%s' (%s) on block level into future partition %" PRIu64 ".",
                          p->copy_blocks_path, FORMAT_BYTES(p->copy_blocks_size), p->partno);
 
-                r = copy_bytes(p->copy_blocks_fd, target_fd, p->copy_blocks_size, 0);
+                r = copy_bytes(p->copy_blocks_fd, target_fd, p->copy_blocks_size, COPY_REFLINK);
                 if (r < 0)
                         return log_error_errno(r, "Failed to copy in data from '%s': %m", p->copy_blocks_path);