Hi Michael and Jens
When I do back port of bcache patches, I find commit 539d39eb2708
("bcache: fix wrong return value in bch_debug_init()") has extra part
from the original patch which Junhui Tanng posted.
The patch posted by Junhui Tang was,
From: Tang Junhui <tang.jun...@zte.com.cn>
in bch_debug_init(), ret is always 0, and the return value is useless,
change it to return 0 if be success after calling debugfs_create_dir(),
else return a non-zero value.
Signed-off-by: Tang Junhui <tang.jun...@zte.com.cn>
---
drivers/md/bcache/debug.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index c7a02c4..2bb0b28
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -251,8 +251,7 @@ void bch_debug_exit(void)
int __init bch_debug_init(struct kobject *kobj)
{
- int ret = 0;
-
debug = debugfs_create_dir("bcache", NULL);
- return ret;
+
+ return IS_ERR_OR_NULL(debug);
}
But the patch merged in 4.16 has extra part of writeback stuffs. I guess
maybe some two patches combined together unwittingly.
Michael, could you please give me some hint ? Should we remove the extra
part of this patch, or we should split them into two patches ?
Thanks.
Coly Li
