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-rw-r--r--fs/btrfs/dev-replace.c6
-rw-r--r--fs/btrfs/extent-tree.c2
-rw-r--r--fs/btrfs/volumes.c129
3 files changed, 65 insertions, 72 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index da7ac14..aa4c828 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -510,8 +510,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
WARN_ON(ret);
/* keep away write_all_supers() during the finishing procedure */
- mutex_lock(&root->fs_info->chunk_mutex);
mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&root->fs_info->chunk_mutex);
btrfs_dev_replace_lock(dev_replace);
dev_replace->replace_state =
scrub_ret ? BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED
@@ -534,8 +534,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
src_device->devid,
rcu_str_deref(tgt_device->name), scrub_ret);
btrfs_dev_replace_unlock(dev_replace);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
mutex_unlock(&root->fs_info->chunk_mutex);
+ mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
if (tgt_device)
btrfs_destroy_dev_replace_tgtdev(fs_info, tgt_device);
mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
@@ -589,8 +589,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
* superblock is scratched out so that it is no longer marked to
* belong to this filesystem.
*/
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
mutex_unlock(&root->fs_info->chunk_mutex);
+ mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
/* write back the superblocks */
trans = btrfs_start_transaction(root, 0);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2191a2c..b30ddb4 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9415,8 +9415,6 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
memcpy(&key, &block_group->key, sizeof(key));
- btrfs_clear_space_info_full(root->fs_info);
-
btrfs_put_block_group(block_group);
btrfs_put_block_group(block_group);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9f22398d..105c5fe 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1264,7 +1264,7 @@ out:
static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device,
- u64 start)
+ u64 start, u64 *dev_extent_len)
{
int ret;
struct btrfs_path *path;
@@ -1306,13 +1306,8 @@ again:
goto out;
}
- if (device->bytes_used > 0) {
- u64 len = btrfs_dev_extent_length(leaf, extent);
- btrfs_device_set_bytes_used(device, device->bytes_used - len);
- spin_lock(&root->fs_info->free_chunk_lock);
- root->fs_info->free_chunk_space += len;
- spin_unlock(&root->fs_info->free_chunk_lock);
- }
+ *dev_extent_len = btrfs_dev_extent_length(leaf, extent);
+
ret = btrfs_del_item(trans, root, path);
if (ret) {
btrfs_error(root->fs_info, ret,
@@ -1521,7 +1516,6 @@ static int btrfs_rm_dev_item(struct btrfs_root *root,
key.objectid = BTRFS_DEV_ITEMS_OBJECTID;
key.type = BTRFS_DEV_ITEM_KEY;
key.offset = device->devid;
- lock_chunks(root);
ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
if (ret < 0)
@@ -1537,7 +1531,6 @@ static int btrfs_rm_dev_item(struct btrfs_root *root,
goto out;
out:
btrfs_free_path(path);
- unlock_chunks(root);
btrfs_commit_transaction(trans, root);
return ret;
}
@@ -1726,9 +1719,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
fs_devices = fs_devices->seed;
}
cur_devices->seed = NULL;
- lock_chunks(root);
__btrfs_close_devices(cur_devices);
- unlock_chunks(root);
free_fs_devices(cur_devices);
}
@@ -1990,11 +1981,12 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices,
synchronize_rcu);
+ list_for_each_entry(device, &seed_devices->devices, dev_list)
+ device->fs_devices = seed_devices;
+ lock_chunks(root);
list_splice_init(&fs_devices->alloc_list, &seed_devices->alloc_list);
- list_for_each_entry(device, &seed_devices->devices, dev_list) {
- device->fs_devices = seed_devices;
- }
+ unlock_chunks(root);
fs_devices->seeding = 0;
fs_devices->num_devices = 0;
@@ -2155,8 +2147,6 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
goto error;
}
- lock_chunks(root);
-
q = bdev_get_queue(bdev);
if (blk_queue_discard(q))
device->can_discard = 1;
@@ -2185,6 +2175,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
device->fs_devices = root->fs_info->fs_devices;
mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ lock_chunks(root);
list_add_rcu(&device->dev_list, &root->fs_info->fs_devices->devices);
list_add(&device->dev_alloc_list,
&root->fs_info->fs_devices->alloc_list);
@@ -2212,15 +2203,34 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
/* add sysfs device entry */
btrfs_kobj_add_device(root->fs_info, device);
+ /*
+ * we've got more storage, clear any full flags on the space
+ * infos
+ */
+ btrfs_clear_space_info_full(root->fs_info);
+
+ unlock_chunks(root);
mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
if (seeding_dev) {
- char fsid_buf[BTRFS_UUID_UNPARSED_SIZE];
+ lock_chunks(root);
ret = init_first_rw_device(trans, root, device);
+ unlock_chunks(root);
if (ret) {
btrfs_abort_transaction(trans, root, ret);
goto error_trans;
}
+ }
+
+ ret = btrfs_add_device(trans, root, device);
+ if (ret) {
+ btrfs_abort_transaction(trans, root, ret);
+ goto error_trans;
+ }
+
+ if (seeding_dev) {
+ char fsid_buf[BTRFS_UUID_UNPARSED_SIZE];
+
ret = btrfs_finish_sprout(trans, root);
if (ret) {
btrfs_abort_transaction(trans, root, ret);
@@ -2234,21 +2244,8 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
root->fs_info->fsid);
if (kobject_rename(&root->fs_info->super_kobj, fsid_buf))
goto error_trans;
- } else {
- ret = btrfs_add_device(trans, root, device);
- if (ret) {
- btrfs_abort_transaction(trans, root, ret);
- goto error_trans;
- }
}
- /*
- * we've got more storage, clear any full flags on the space
- * infos
- */
- btrfs_clear_space_info_full(root->fs_info);
-
- unlock_chunks(root);
root->fs_info->num_tolerated_disk_barrier_failures =
btrfs_calc_num_tolerated_disk_barrier_failures(root->fs_info);
ret = btrfs_commit_transaction(trans, root);
@@ -2280,7 +2277,6 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
return ret;
error_trans:
- unlock_chunks(root);
btrfs_end_transaction(trans, root);
rcu_string_free(device->name);
btrfs_kobj_rm_device(root->fs_info, device);
@@ -2449,20 +2445,27 @@ out:
return ret;
}
-static int __btrfs_grow_device(struct btrfs_trans_handle *trans,
+int btrfs_grow_device(struct btrfs_trans_handle *trans,
struct btrfs_device *device, u64 new_size)
{
struct btrfs_super_block *super_copy =
device->dev_root->fs_info->super_copy;
struct btrfs_fs_devices *fs_devices;
- u64 old_total = btrfs_super_total_bytes(super_copy);
- u64 diff = new_size - device->total_bytes;
+ u64 old_total;
+ u64 diff;
if (!device->writeable)
return -EACCES;
+
+ lock_chunks(device->dev_root);
+ old_total = btrfs_super_total_bytes(super_copy);
+ diff = new_size - device->total_bytes;
+
if (new_size <= device->total_bytes ||
- device->is_tgtdev_for_dev_replace)
+ device->is_tgtdev_for_dev_replace) {
+ unlock_chunks(device->dev_root);
return -EINVAL;
+ }
fs_devices = device->dev_root->fs_info->fs_devices;
@@ -2475,20 +2478,11 @@ static int __btrfs_grow_device(struct btrfs_trans_handle *trans,
if (list_empty(&device->resized_list))
list_add_tail(&device->resized_list,
&fs_devices->resized_devices);
+ unlock_chunks(device->dev_root);
return btrfs_update_device(trans, device);
}
-int btrfs_grow_device(struct btrfs_trans_handle *trans,
- struct btrfs_device *device, u64 new_size)
-{
- int ret;
- lock_chunks(device->dev_root);
- ret = __btrfs_grow_device(trans, device, new_size);
- unlock_chunks(device->dev_root);
- return ret;
-}
-
static int btrfs_free_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 chunk_tree, u64 chunk_objectid,
@@ -2540,6 +2534,7 @@ static int btrfs_del_sys_chunk(struct btrfs_root *root, u64 chunk_objectid, u64
u32 cur;
struct btrfs_key key;
+ lock_chunks(root);
array_size = btrfs_super_sys_array_size(super_copy);
ptr = super_copy->sys_chunk_array;
@@ -2569,6 +2564,7 @@ static int btrfs_del_sys_chunk(struct btrfs_root *root, u64 chunk_objectid, u64
cur += len;
}
}
+ unlock_chunks(root);
return ret;
}
@@ -2579,8 +2575,10 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
struct extent_map_tree *em_tree;
struct btrfs_root *extent_root;
struct btrfs_trans_handle *trans;
+ struct btrfs_device *device;
struct extent_map *em;
struct map_lookup *map;
+ u64 dev_extent_len = 0;
int ret;
int i;
@@ -2604,8 +2602,6 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
return ret;
}
- lock_chunks(root);
-
/*
* step two, delete the device extents and the
* chunk tree entries
@@ -2619,10 +2615,23 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
map = (struct map_lookup *)em->bdev;
for (i = 0; i < map->num_stripes; i++) {
- ret = btrfs_free_dev_extent(trans, map->stripes[i].dev,
- map->stripes[i].physical);
+ device = map->stripes[i].dev;
+ ret = btrfs_free_dev_extent(trans, device,
+ map->stripes[i].physical,
+ &dev_extent_len);
BUG_ON(ret);
+ if (device->bytes_used > 0) {
+ lock_chunks(root);
+ btrfs_device_set_bytes_used(device,
+ device->bytes_used - dev_extent_len);
+ spin_lock(&root->fs_info->free_chunk_lock);
+ root->fs_info->free_chunk_space += dev_extent_len;
+ spin_unlock(&root->fs_info->free_chunk_lock);
+ btrfs_clear_space_info_full(root->fs_info);
+ unlock_chunks(root);
+ }
+
if (map->stripes[i].dev) {
ret = btrfs_update_device(trans, map->stripes[i].dev);
BUG_ON(ret);
@@ -2652,7 +2661,6 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
/* once for us */
free_extent_map(em);
- unlock_chunks(root);
btrfs_end_transaction(trans, root);
return 0;
}
@@ -4029,16 +4037,12 @@ again:
list_add_tail(&device->resized_list,
&root->fs_info->fs_devices->resized_devices);
- /* Now btrfs_update_device() will change the on-disk size. */
- ret = btrfs_update_device(trans, device);
- if (ret) {
- unlock_chunks(root);
- btrfs_end_transaction(trans, root);
- goto done;
- }
WARN_ON(diff > old_total);
btrfs_set_super_total_bytes(super_copy, old_total - diff);
unlock_chunks(root);
+
+ /* Now btrfs_update_device() will change the on-disk size. */
+ ret = btrfs_update_device(trans, device);
btrfs_end_transaction(trans, root);
done:
btrfs_free_path(path);
@@ -4612,15 +4616,6 @@ static noinline int init_first_rw_device(struct btrfs_trans_handle *trans,
alloc_profile = btrfs_get_alloc_profile(fs_info->chunk_root, 0);
ret = __btrfs_alloc_chunk(trans, extent_root, sys_chunk_offset,
alloc_profile);
- if (ret) {
- btrfs_abort_transaction(trans, root, ret);
- goto out;
- }
-
- ret = btrfs_add_device(trans, fs_info->chunk_root, device);
- if (ret)
- btrfs_abort_transaction(trans, root, ret);
-out:
return ret;
}
generated by cgit v0.10.2 at 2024-10-31 12:49:19 (GMT)