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Commit b4993e64 authored by Anand Jain's avatar Anand Jain Committed by David Sterba
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btrfs: fix in-memory value of total_devices after seed device deletion 



In case of deleting the seed device the %cur_devices (seed) and the
%fs_devices (parent) are different. Now, as the parent
fs_devices::total_devices also maintains the total number of devices
including the seed device, so decrement its in-memory value for the
successful seed delete. We are already updating its corresponding
on-disk btrfs_super_block::number_devices value.

Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 340f1aa2

fs/btrfs/volumes.c

+3 −0
Original line number Diff line number Diff line
@@ -2026,6 +2026,9 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path, 


	cur_devices->num_devices--;

	cur_devices->total_devices--;

	/* Update total_devices of the parent fs_devices if it's seed */

	if (cur_devices != fs_devices)

		fs_devices->total_devices--;



	if (test_bit(BTRFS_DEV_STATE_MISSING, &device->dev_state))

		cur_devices->missing_devices--;