[PATCH v4 3/5] eal: skip stdio on console logging

[Stephen Hemminger]

There is no need to use stdio when logging to console.
Using the write system call directly avoids unnecessary copy
to stdio output buffer.

Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
 lib/eal/unix/eal_log.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/eal/unix/eal_log.c b/lib/eal/unix/eal_log.c
index d44416fd6570..baa721021991 100644
--- a/lib/eal/unix/eal_log.c
+++ b/lib/eal/unix/eal_log.c
@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <syslog.h>
+#include <unistd.h>
 
 #include <rte_log.h>
 
@@ -19,8 +20,7 @@ console_log_write(__rte_unused void *c, const char *buf, 
size_t size)
        ssize_t ret;
 
        /* write on stderr */
-       ret = fwrite(buf, 1, size, stderr);
-       fflush(stderr);
+       ret = write(STDERR_FILENO, buf, size);
 
        /* Syslog error levels are from 0 to 7, so subtract 1 to convert */
        syslog(rte_log_cur_msg_loglevel() - 1, "%.*s", (int)size, buf);
-- 
2.39.2