diff options
| author | Anand Jain <anand.jain@oracle.com> | 2018-07-03 17:07:23 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-15 09:46:55 +0200 |
| commit | 4c8415cf5b5a992189b922661ace9e2ab7f5fa0e (patch) | |
| tree | d3ddc8569c836fde782e9f66ca304dff077cf54d /fs | |
| parent | 32455d96e3eedbd5912122ed799f6603b92375c5 (diff) | |
btrfs: fix in-memory value of total_devices after seed device deletion
[ Upstream commit b4993e64f78a9605b45252fa9ba385c88a1f4ce9 ]
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: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/volumes.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 93765f17a454..fca57c1f077c 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2029,6 +2029,9 @@ 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--; |