Ah nope, it was me being silly, I was only looking in /sys/module/md_mod/parameters. Still, I am guessing this needs expanding upon as --detail still uses md_get_array_info which calls ioctl? Regards, Phil Potter On Sun, Sep 30, 2018 at 07:07:18PM +0100, Phillip Potter wrote: > Sorry, I incorrectly assumed it was ok as Detail.c uses md_get_array_info which still uses the > ioctl at present. I'm certainly interested in having a pop at exposing this information via > sysfs, if noone else is already working on it? The sysfs interface seems fairly sparse at > present as far as reporting details on an array goes. > > Regards, > Phil Potter > On Sun, Sep 30, 2018 at 01:46:14PM -0400, Jes Sorensen wrote: > > 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