#include "transaction.h"
#include "locking.h"
#include "tree-log.h"
-#include "inode-map.h"
#include "volumes.h"
#include "dev-replace.h"
#include "qgroup.h"
struct btrfs_transaction *cur_trans = trans->transaction;
struct btrfs_fs_info *fs_info = trans->fs_info;
struct btrfs_root *root, *tmp;
+ struct btrfs_caching_control *caching_ctl, *next;
down_write(&fs_info->commit_root_sem);
list_for_each_entry_safe(root, tmp, &cur_trans->switch_commits,
list_del_init(&root->dirty_list);
free_extent_buffer(root->commit_root);
root->commit_root = btrfs_root_node(root);
- if (is_fstree(root->root_key.objectid))
- btrfs_unpin_free_ino(root);
extent_io_tree_release(&root->dirty_log_pages);
btrfs_qgroup_clean_swapped_blocks(root);
}
spin_lock(&cur_trans->dropped_roots_lock);
}
spin_unlock(&cur_trans->dropped_roots_lock);
+
+ /*
+ * We have to update the last_byte_to_unpin under the commit_root_sem,
+ * at the same time we swap out the commit roots.
+ *
+ * This is because we must have a real view of the last spot the caching
+ * kthreads were while caching. Consider the following views of the
+ * extent tree for a block group
+ *
+ * commit root
+ * +----+----+----+----+----+----+----+
+ * |\\\\| |\\\\|\\\\| |\\\\|\\\\|
+ * +----+----+----+----+----+----+----+
+ * 0 1 2 3 4 5 6 7
+ *
+ * new commit root
+ * +----+----+----+----+----+----+----+
+ * | | | |\\\\| | |\\\\|
+ * +----+----+----+----+----+----+----+
+ * 0 1 2 3 4 5 6 7
+ *
+ * If the cache_ctl->progress was at 3, then we are only allowed to
+ * unpin [0,1) and [2,3], because the caching thread has already
+ * processed those extents. We are not allowed to unpin [5,6), because
+ * the caching thread will re-start it's search from 3, and thus find
+ * the hole from [4,6) to add to the free space cache.
+ */
+ spin_lock(&fs_info->block_group_cache_lock);
+ list_for_each_entry_safe(caching_ctl, next,
+ &fs_info->caching_block_groups, list) {
+ struct btrfs_block_group *cache = caching_ctl->block_group;
+
+ if (btrfs_block_group_done(cache)) {
+ cache->last_byte_to_unpin = (u64)-1;
+ list_del_init(&caching_ctl->list);
+ btrfs_put_caching_control(caching_ctl);
+ } else {
+ cache->last_byte_to_unpin = caching_ctl->progress;
+ }
+ }
+ spin_unlock(&fs_info->block_group_cache_lock);
up_write(&fs_info->commit_root_sem);
}
wait_current_trans(fs_info);
}
-static int should_end_transaction(struct btrfs_trans_handle *trans)
+static bool should_end_transaction(struct btrfs_trans_handle *trans)
{
struct btrfs_fs_info *fs_info = trans->fs_info;
if (btrfs_check_space_for_delayed_refs(fs_info))
- return 1;
+ return true;
return !!btrfs_block_rsv_check(&fs_info->global_block_rsv, 5);
}
-int btrfs_should_end_transaction(struct btrfs_trans_handle *trans)
+bool btrfs_should_end_transaction(struct btrfs_trans_handle *trans)
{
struct btrfs_transaction *cur_trans = trans->transaction;
smp_mb();
if (cur_trans->state >= TRANS_STATE_COMMIT_START ||
cur_trans->delayed_refs.flushing)
- return 1;
+ return true;
return should_end_transaction(trans);
}
btrfs_free_log(trans, root);
btrfs_update_reloc_root(trans, root);
- btrfs_save_ino_cache(root, trans);
-
/* see comments in should_cow_block() */
clear_bit(BTRFS_ROOT_FORCE_COW, &root->state);
smp_mb__after_atomic();
goto fail;
}
- btrfs_set_lock_blocking_write(old);
-
ret = btrfs_copy_root(trans, root, old, &tmp, objectid);
/* clean up in any case */
btrfs_tree_unlock(old);
dentry->d_name.len * 2);
parent_inode->i_mtime = parent_inode->i_ctime =
current_time(parent_inode);
- ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode);
+ ret = btrfs_update_inode_fallback(trans, parent_root, BTRFS_I(parent_inode));
if (ret) {
btrfs_abort_transaction(trans, ret);
goto fail;
super->root_level = root_item->level;
if (btrfs_test_opt(fs_info, SPACE_CACHE))
super->cache_generation = root_item->generation;
+ else if (test_bit(BTRFS_FS_CLEANUP_SPACE_CACHE_V1, &fs_info->flags))
+ super->cache_generation = 0;
if (test_bit(BTRFS_FS_UPDATE_UUID_TREE_GEN, &fs_info->flags))
super->uuid_tree_generation = root_item->generation;
}
goto unlock_tree_log;
}
- btrfs_prepare_extent_commit(fs_info);
-
cur_trans = fs_info->running_transaction;
btrfs_set_root_node(&fs_info->tree_root->root_item,
btrfs_debug(fs_info, "cleaner removing %llu", root->root_key.objectid);
btrfs_kill_all_delayed_nodes(root);
- if (root->ino_cache_inode) {
- iput(root->ino_cache_inode);
- root->ino_cache_inode = NULL;
- }
if (btrfs_header_backref_rev(root->node) <
BTRFS_MIXED_BACKREF_REV)
if (!prev)
return;
- bit = 1 << BTRFS_PENDING_SET_INODE_MAP_CACHE;
- if (prev & bit)
- btrfs_set_opt(fs_info->mount_opt, INODE_MAP_CACHE);
- prev &= ~bit;
-
- bit = 1 << BTRFS_PENDING_CLEAR_INODE_MAP_CACHE;
- if (prev & bit)
- btrfs_clear_opt(fs_info->mount_opt, INODE_MAP_CACHE);
- prev &= ~bit;
-
bit = 1 << BTRFS_PENDING_COMMIT;
if (prev & bit)
btrfs_debug(fs_info, "pending commit done");
projects / linux-2.6-microblaze.git / blobdiff