diff options
Diffstat (limited to 'fs/btrfs/dev-replace.c')
| -rw-r--r-- | fs/btrfs/dev-replace.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 70681686e8dc..2cfc3dfff64f 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -26,7 +26,6 @@ #include <linux/kthread.h> #include <linux/math64.h> #include <asm/div64.h> -#include "compat.h" #include "ctree.h" #include "extent_map.h" #include "disk-io.h" @@ -38,7 +37,6 @@ #include "rcu-string.h" #include "dev-replace.h" -static u64 btrfs_get_seconds_since_1970(void); static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, int scrub_ret); static void btrfs_dev_replace_update_device_in_mapping_tree( @@ -296,13 +294,6 @@ void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info) dev_replace->cursor_left_last_write_of_item; } -static u64 btrfs_get_seconds_since_1970(void) -{ - struct timespec t = CURRENT_TIME_SEC; - - return t.tv_sec; -} - int btrfs_dev_replace_start(struct btrfs_root *root, struct btrfs_ioctl_dev_replace_args *args) { @@ -375,7 +366,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, dev_replace->tgtdev = tgt_device; printk_in_rcu(KERN_INFO - "btrfs: dev_replace from %s (devid %llu) to %s) started\n", + "btrfs: dev_replace from %s (devid %llu) to %s started\n", src_device->missing ? "<missing disk>" : rcu_str_deref(src_device->name), src_device->devid, @@ -390,7 +381,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, * go to the tgtdev as well (refer to btrfs_map_block()). */ dev_replace->replace_state = BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED; - dev_replace->time_started = btrfs_get_seconds_since_1970(); + dev_replace->time_started = get_seconds(); dev_replace->cursor_left = 0; dev_replace->committed_cursor_left = 0; dev_replace->cursor_left_last_write_of_item = 0; @@ -400,7 +391,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, args->result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR; btrfs_dev_replace_unlock(dev_replace); - btrfs_wait_all_ordered_extents(root->fs_info); + btrfs_wait_ordered_roots(root->fs_info, -1); /* force writing the updated state information to disk */ trans = btrfs_start_transaction(root, 0); @@ -470,12 +461,12 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, * flush all outstanding I/O and inode extent mappings before the * copy operation is declared as being finished */ - ret = btrfs_start_all_delalloc_inodes(root->fs_info, 0); + ret = btrfs_start_delalloc_roots(root->fs_info, 0); if (ret) { mutex_unlock(&dev_replace->lock_finishing_cancel_unmount); return ret; } - btrfs_wait_all_ordered_extents(root->fs_info); + btrfs_wait_ordered_roots(root->fs_info, -1); trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { @@ -493,7 +484,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, : BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED; dev_replace->tgtdev = NULL; dev_replace->srcdev = NULL; - dev_replace->time_stopped = btrfs_get_seconds_since_1970(); + dev_replace->time_stopped = get_seconds(); dev_replace->item_needs_writeback = 1; if (scrub_ret) { @@ -535,10 +526,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, list_add(&tgt_device->dev_alloc_list, &fs_info->fs_devices->alloc_list); btrfs_rm_dev_replace_srcdev(fs_info, src_device); - if (src_device->bdev) { - /* zero out the old super */ - btrfs_scratch_superblock(src_device); - } + /* * this is again a consistent state where no dev_replace procedure * is running, the target device is part of the filesystem, the @@ -653,6 +641,9 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info) u64 result; int ret; + if (fs_info->sb->s_flags & MS_RDONLY) + return -EROFS; + mutex_lock(&dev_replace->lock_finishing_cancel_unmount); btrfs_dev_replace_lock(dev_replace); switch (dev_replace->replace_state) { @@ -671,7 +662,7 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info) break; } dev_replace->replace_state = BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED; - dev_replace->time_stopped = btrfs_get_seconds_since_1970(); + dev_replace->time_stopped = get_seconds(); dev_replace->item_needs_writeback = 1; btrfs_dev_replace_unlock(dev_replace); btrfs_scrub_cancel(fs_info); @@ -706,7 +697,7 @@ void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info) case BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED: dev_replace->replace_state = BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED; - dev_replace->time_stopped = btrfs_get_seconds_since_1970(); + dev_replace->time_stopped = get_seconds(); dev_replace->item_needs_writeback = 1; pr_info("btrfs: suspending dev_replace for unmount\n"); break; |