[sheepdog] [PATCH] lib: choose a correct output in logger

[Hitoshi Mitake]

Current logger chooses stderr as an output of logs in cases
logarea_init() isn't called or default formatter is used.

This patch lets logger choose stderr when a priority of logs is less
than or equal to LOG_NOTICE. If the priority is larger than or equal
to SDOG_INFO, stdout is used.

Signed-off-by: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>
---
 lib/logger.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/logger.c b/lib/logger.c
index 253163d..059140f 100644
--- a/lib/logger.c
+++ b/lib/logger.c
@@ -407,8 +407,10 @@ static notrace void dolog(int prio, const char *func, int line,
 		memset(msg, 0, sizeof(struct logmsg));
 		init_logmsg(msg, &tv, prio, func, line);
 		len = format->formatter(str_final, MAX_MSG_SIZE, msg);
-		xwrite(fileno(stderr), str_final, len);
-		fflush(stderr);
+
+		FILE *f = SDOG_INFO <= prio ? stdout : stderr;
+		xwrite(fileno(f), str_final, len);
+		fflush(f);
 	}
 }
 
-- 
1.7.5.1