Now a cache set only has a single cache, therefore "bache make" should
permit only one cache device to be specified for a cache set.
This patch checks if more than one cache devices are specified by "-C"
an error message "Please specify only one cache device" will be printed
and bcache exits with usage information.
Signed-off-by: Coly Li <colyli@xxxxxxx>
---
make.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/make.c b/make.c
index 9631857..ad89377 100644
--- a/make.c
+++ b/make.c
@@ -604,6 +604,11 @@ int make_bcache(int argc, char **argv)
usage();
}
+ if (ncache_devices > 1) {
+ fprintf(stderr, "Please specify only one cache device\n");
+ usage();
+ }
+
if (bucket_size < block_size) {
fprintf(stderr,
"Bucket size cannot be smaller than block size\n");
--
2.26.2
