Re: [PATCH v2] Monitor: containers don't have the same sysfs properties as arrays

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On 07/27/2017 09:22 AM, Mariusz Tkaczyk wrote:
GET_MISMATCH option doesn't exist for containers so sysfs_read fails if
this information is requested. Set options according to the device using
information from /proc/mdstat.

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@xxxxxxxxx>
---
  Monitor.c | 45 +++++++++++++++++++++++++++------------------
  1 file changed, 27 insertions(+), 18 deletions(-)

Hi Mariusz,

Sorry for the late response, I am just back from PTO.

I know you will hate me for this, but I have one more nit:

diff --git a/Monitor.c b/Monitor.c
index 48c451c..de470bd 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -465,6 +465,8 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
  	int last_disk;
  	int new_array = 0;
  	int retval;
+	int is_container;
+	unsigned long array_only_flags = 0;
if (test)
  		alert("TestMessage", dev, NULL, ainfo);
[snip]
+	if (!mse) {
+		/* duplicated array in statelist
+		 * or re-created after reading mdstat
+		 */
+		st->err++;
+		goto out;
+	}
+
+	is_container = mse->level == NULL;

I really find this last line super obfuscating - I had to go back and read it again to realize it wasn't just trying to set is_container and mse->level both to NULL.

Would you mind using an if statement there instead?

Thanks,
Jes


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