On 2/23/21 2:53 PM, David Sterba wrote:

On Mon, Feb 22, 2021 at 10:19:06PM +0100, Goffredo Baroncelli wrote:

quoted

From: Goffredo Baroncelli <redacted>

This ioctl is a base for returning / setting information from / to  the
fields of the btrfs_dev_item object.

Hi David,

Please don't add a new ioctl for properties, they're using the xattr as
interface alrady.
how it is supposed to work with a device ?

I have to point out that the property is already exported in sysfs.
However I read a comment in sysfs code that discourages
to make a filesystem updating (open a new transaction) in the sysfs
handler. Do you have any suggestion ?

Thanks in advance
BR
Goffredo

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