1 /* 2 * Copyright (C) STRATO AG 2012. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public 6 * License v2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public 14 * License along with this program; if not, write to the 15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 16 * Boston, MA 021110-1307, USA. 17 */ 18 19 #if !defined(__BTRFS_DEV_REPLACE__) 20 #define __BTRFS_DEV_REPLACE__ 21 22 struct btrfs_ioctl_dev_replace_args; 23 24 int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info); 25 int btrfs_run_dev_replace(struct btrfs_trans_handle *trans, 26 struct btrfs_fs_info *fs_info); 27 void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info); 28 int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info, 29 struct btrfs_ioctl_dev_replace_args *args); 30 int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info, 31 const char *tgtdev_name, u64 srcdevid, const char *srcdev_name, 32 int read_src); 33 void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info, 34 struct btrfs_ioctl_dev_replace_args *args); 35 int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info, 36 struct btrfs_ioctl_dev_replace_args *args); 37 void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info); 38 int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info); 39 int btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace); 40 void btrfs_dev_replace_lock(struct btrfs_dev_replace *dev_replace, int rw); 41 void btrfs_dev_replace_unlock(struct btrfs_dev_replace *dev_replace, int rw); 42 void btrfs_dev_replace_set_lock_blocking(struct btrfs_dev_replace *dev_replace); 43 void btrfs_dev_replace_clear_lock_blocking( 44 struct btrfs_dev_replace *dev_replace); 45 46 static inline void btrfs_dev_replace_stats_inc(atomic64_t *stat_value) 47 { 48 atomic64_inc(stat_value); 49 } 50 #endif 51