Sorry for top posting, unfortunately mobile clients are broken :( Please do not mess with the old ioctl interface. No new features should be added there. Use sysfs. Thanks Jes Sent from MailDroid -----Original Message----- From: Phillip Potter <phil@xxxxxxxxxxxxxxxx> To: shli@xxxxxxxxxx, jes.sorensen@xxxxxxxxx Cc: linux-raid@xxxxxxxxxxxxxxx Sent: Sun, 30 Sep 2018 13:42 Subject: [PATCH 0/2] Two patches for RAID-5/6 journal information Dear Jes and Shaohua, I've written the following two patches to expose RAID-5/6 journaling information via the GET_ARRAY_INFO ioctl, as per the TODO in drivers/md/md.c. The first patch is the kernel patch and the second one is for the mdadm tree. I hope these are ok. Many thanks. Regards, Phil Potter