Re: [PATCH 2/4] btrfs: sysfs, add UUID/devinfo kobject

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On 15/1/20 2:32 AM, David Sterba wrote:
On Thu, Dec 05, 2019 at 07:27:04PM +0800, Anand Jain wrote:
Preparatory patch creates kobject /sys/fs/btrfs/UUID/devinfo to hold
btrfs_fs_devices::dev_state attribute.

This is being added in the mount context, that means we don't see
UUID/devinfo before the mount (yet).

Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>



There's a report about duplicate directory created:

btrfs/064


[ 1782.480622] sysfs: cannot create duplicate filename '/fs/btrfs/3f26615b-afcd-4008-8aed-44e714be257c/devices/0'

 Just for the clarity this patch did not cause this issue.

David,

 The patches 1/4,2/4,3/4 in this series are cleanups and preparatory
 which is missing in misc-next.

 So the devid is being created under <UUID>/devices instead of
 <UUID>/devinfo as planned.

 I am sending the whole series again with the patch 4/4 taken from
 misc-next, please help to integrate.

Thanks, Anand



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