core: try again bind mounting if the destination was already created

If the destination mount point is on a shared filesystem and is
missing on the first attempt, we try to create it, but then
fail with -EEXIST if something else created it in the meanwhile.
Enter the retry logic on EEXIST, as we can just use the mount
point if it was already created.

Fixes https://github.com/systemd/systemd/issues/29690
This commit is contained in:
Luca Boccassi
2024-06-30 00:44:03 +02:00
committed by Luca Boccassi
parent c5822010ae
commit c3f0f6f8bd
+5 -5
View File
@@ -1762,11 +1762,11 @@ static int apply_one_mount(
(void) mkdir_parents(mount_entry_path(m), 0755);
q = make_mount_point_inode_from_path(what, mount_entry_path(m), 0755);
if (q < 0) {
if (q != -EEXIST) // FIXME: this shouldn't be logged at LOG_WARNING, but be bubbled up, and logged there to avoid duplicate logging
log_warning_errno(q, "Failed to create destination mount point node '%s', ignoring: %m",
mount_entry_path(m));
} else
if (q < 0 && q != -EEXIST)
// FIXME: this shouldn't be logged at LOG_WARNING, but be bubbled up, and logged there to avoid duplicate logging
log_warning_errno(q, "Failed to create destination mount point node '%s', ignoring: %m",
mount_entry_path(m));
else
try_again = true;
}