From: Miao Xie Date: Wed, 3 Sep 2014 13:35:44 +0000 (+0800) Subject: Btrfs: make the logic of source device removing more clear X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=82372bc816d75722c24d1abadb11cd8c0a33883a;p=linux-beck.git Btrfs: make the logic of source device removing more clear Signed-off-by: Miao Xie Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index e9cbbdb72978..6f662b34ba0e 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -569,8 +569,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, if (fs_info->fs_devices->latest_bdev == src_device->bdev) fs_info->fs_devices->latest_bdev = tgt_device->bdev; list_add(&tgt_device->dev_alloc_list, &fs_info->fs_devices->alloc_list); - if (src_device->fs_devices->seeding) - fs_info->fs_devices->rw_devices++; + fs_info->fs_devices->rw_devices++; /* replace the sysfs entry */ btrfs_kobj_rm_device(fs_info, src_device); diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index a15c8ac5d5b3..2e078fa705a6 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1819,23 +1819,18 @@ void btrfs_rm_dev_replace_srcdev(struct btrfs_fs_info *fs_info, list_del_rcu(&srcdev->dev_list); list_del_rcu(&srcdev->dev_alloc_list); fs_devices->num_devices--; - if (srcdev->missing) { + if (srcdev->missing) fs_devices->missing_devices--; - if (!fs_devices->seeding) - fs_devices->rw_devices++; + + if (srcdev->writeable) { + fs_devices->rw_devices--; + /* zero out the old super if it is writable */ + btrfs_scratch_superblock(srcdev); } - if (srcdev->bdev) { + if (srcdev->bdev) fs_devices->open_devices--; - /* - * zero out the old super if it is not writable - * (e.g. seed device) - */ - if (srcdev->writeable) - btrfs_scratch_superblock(srcdev); - } - call_rcu(&srcdev->rcu, free_device); /*