mdadm: Introduce pr_info()

Feedback was given to avoid informational pr_err() calls that print
to stderr, even though that's done all through out the code.

Using printf() directly doesn't maintain the same format (an "mdadm"
prefix on every line.

So introduce pr_info() which prints to stdout with the same format
and use it for a couple informational pr_err() calls in Create().

Future work can make this call used in more cases.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Kinga Tanska <kinga.tanska@linux.intel.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Acked-by: Coly Li <colyli@suse.de>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>

2 files changed, 6 insertions, 3 deletions

diff --git a/Create.c b/Create.c
index 6a044664..4acda30c 100644
--- a/Create.c
+++ b/Create.c
@@ -984,11 +984,12 @@ int Create(struct supertype *st, char *mddev,
 
 			mdi = sysfs_read(-1, devnm, GET_VERSION);
 
-			pr_err("Creating array inside %s container %s\n",
+			pr_info("Creating array inside %s container %s\n",
 				mdi?mdi->text_version:"managed", devnm);
 			sysfs_free(mdi);
 		} else
-			pr_err("Defaulting to version %s metadata\n", info.text_version);
+			pr_info("Defaulting to version %s metadata\n",
+				info.text_version);
 	}
 
 	map_update(&map, fd2devnm(mdfd), info.text_version,
@@ -1145,7 +1146,7 @@ int Create(struct supertype *st, char *mddev,
 			ioctl(mdfd, RESTART_ARRAY_RW, NULL);
 		}
 		if (c->verbose >= 0)
-			pr_err("array %s started.\n", mddev);
+			pr_info("array %s started.\n", mddev);
 		if (st->ss->external && st->container_devnm[0]) {
 			if (need_mdmon)
 				start_mdmon(st->container_devnm);
diff --git a/mdadm.h b/mdadm.h
index 1674ce13..4336be4d 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -1854,6 +1854,8 @@ static inline int xasprintf(char **strp, const char *fmt, ...) {
 #endif
 #define cont_err(fmt ...) fprintf(stderr, "       " fmt)
 
+#define pr_info(fmt, args...) printf("%s: "fmt, Name, ##args)
+
 void *xmalloc(size_t len);
 void *xrealloc(void *ptr, size_t len);
 void *xcalloc(size_t num, size_t size);