btrfs: preparatory to make btrfs_rm_dev_replace_srcdev() seed aware
There is no logical change in this patch, just a preparatory patch,
so that changes can be easily reasoned.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ff8386e..096b4a3 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1815,19 +1815,23 @@
void btrfs_rm_dev_replace_srcdev(struct btrfs_fs_info *fs_info,
struct btrfs_device *srcdev)
{
+ struct btrfs_fs_devices *fs_devices;
+
WARN_ON(!mutex_is_locked(&fs_info->fs_devices->device_list_mutex));
+ fs_devices = fs_info->fs_devices;
+
list_del_rcu(&srcdev->dev_list);
list_del_rcu(&srcdev->dev_alloc_list);
- fs_info->fs_devices->num_devices--;
+ fs_devices->num_devices--;
if (srcdev->missing) {
- fs_info->fs_devices->missing_devices--;
- fs_info->fs_devices->rw_devices++;
+ fs_devices->missing_devices--;
+ fs_devices->rw_devices++;
}
if (srcdev->can_discard)
- fs_info->fs_devices->num_can_discard--;
+ fs_devices->num_can_discard--;
if (srcdev->bdev) {
- fs_info->fs_devices->open_devices--;
+ fs_devices->open_devices--;
/*
* zero out the old super if it is not writable