diff options
Diffstat (limited to 'fs/btrfs/send.c')
| -rw-r--r-- | fs/btrfs/send.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 49edcc709a99..69b59bf75882 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -6929,9 +6929,23 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg) if (ret) goto out; + mutex_lock(&fs_info->balance_mutex); + if (test_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags)) { + mutex_unlock(&fs_info->balance_mutex); + btrfs_warn_rl(fs_info, + "cannot run send because a balance operation is in progress"); + ret = -EAGAIN; + goto out; + } + fs_info->send_in_progress++; + mutex_unlock(&fs_info->balance_mutex); + current->journal_info = BTRFS_SEND_TRANS_STUB; ret = send_subvol(sctx); current->journal_info = NULL; + mutex_lock(&fs_info->balance_mutex); + fs_info->send_in_progress--; + mutex_unlock(&fs_info->balance_mutex); if (ret < 0) goto out; |