log: no file for external logging

When external logging is set do not bother creating log file,
as it's not going to be used.

2 files changed, 5 insertions, 0 deletions

diff --git a/WHATS_NEW b/WHATS_NEW
index c089228e8..7507b9cf6 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.133 - 
 ======================================
+  Avoid creation of log file when logging function is set.
   Do not change logging in lvm2 library when it's already set.
   Check for enough space in thin-pool in command before creating new thin.
   Make libblkid detect all copies of the same signature if use_blkid_wiping=1.
diff --git a/lib/log/log.c b/lib/log/log.c
index bd1136393..7f3136121 100644
--- a/lib/log/log.c
+++ b/lib/log/log.c
@@ -74,6 +74,10 @@ void init_log_file(const char *log_file, int append)
 	int i = 0;
 
 	_log_file_path[0] = '\0';
+
+	if (_lvm2_log_fn)
+		return; /* No log file, when log function is set */
+
 	if ((env = getenv("LVM_LOG_FILE_EPOCH"))) {
 		while (isalpha(env[i]) && i < 32) /* Up to 32 alphas */
 			i++;