From 068e52686221ab3b41c4213b5747d885ae1fa920 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Mon, 7 Sep 2020 17:30:36 +0200
Subject: [PATCH] backup: touch all chunks, even if they exist

We need to update the atime of chunk files if they already exist,
otherwise a concurrently running GC could sweep them away.

This is protected with ChunkStore.mutex, so the fstat/unlink does not
race with touching.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
 src/backup/chunk_store.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backup/chunk_store.rs b/src/backup/chunk_store.rs
index abe1d67f..1d9de70a 100644
--- a/src/backup/chunk_store.rs
+++ b/src/backup/chunk_store.rs
@@ -414,6 +414,7 @@ impl ChunkStore {
 
         if let Ok(metadata) = std::fs::metadata(&chunk_path) {
             if metadata.is_file() {
+                self.touch_chunk(digest)?;
                 return Ok((true, metadata.len()));
             } else {
                 bail!("Got unexpected file type on store '{}' for chunk {}", self.name, digest_str);