WARN_ON(ret);
if (i_size_read(inode) > 0) {
+ ret = btrfs_check_trunc_cache_free_space(root,
+ &root->fs_info->global_block_rsv);
+ if (ret)
+ goto out_put;
+
ret = btrfs_truncate_free_space_cache(root, trans, path,
inode);
if (ret)
fs_info->csum_root->block_rsv = &fs_info->global_block_rsv;
fs_info->dev_root->block_rsv = &fs_info->global_block_rsv;
fs_info->tree_root->block_rsv = &fs_info->global_block_rsv;
+ if (fs_info->quota_root)
+ fs_info->quota_root->block_rsv = &fs_info->global_block_rsv;
fs_info->chunk_root->block_rsv = &fs_info->chunk_block_rsv;
update_global_block_rsv(fs_info);
struct btrfs_block_rsv *block_rsv;
struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
int ret;
+ bool global_updated = false;
block_rsv = get_block_rsv(trans, root);
- if (block_rsv->size == 0) {
- ret = reserve_metadata_bytes(root, block_rsv, blocksize,
- BTRFS_RESERVE_NO_FLUSH);
- /*
- * If we couldn't reserve metadata bytes try and use some from
- * the global reserve.
- */
- if (ret && block_rsv != global_rsv) {
- ret = block_rsv_use_bytes(global_rsv, blocksize);
- if (!ret)
- return global_rsv;
- return ERR_PTR(ret);
- } else if (ret) {
- return ERR_PTR(ret);
- }
+ if (unlikely(block_rsv->size == 0))
+ goto try_reserve;
+again:
+ ret = block_rsv_use_bytes(block_rsv, blocksize);
+ if (!ret)
return block_rsv;
+
+ if (block_rsv->failfast)
+ return ERR_PTR(ret);
+
+ if (block_rsv->type == BTRFS_BLOCK_RSV_GLOBAL && !global_updated) {
+ global_updated = true;
+ update_global_block_rsv(root->fs_info);
+ goto again;
}
- ret = block_rsv_use_bytes(block_rsv, blocksize);
+ if (btrfs_test_opt(root, ENOSPC_DEBUG)) {
+ static DEFINE_RATELIMIT_STATE(_rs,
+ DEFAULT_RATELIMIT_INTERVAL * 10,
+ /*DEFAULT_RATELIMIT_BURST*/ 1);
+ if (__ratelimit(&_rs))
+ WARN(1, KERN_DEBUG
+ "btrfs: block rsv returned %d\n", ret);
+ }
+try_reserve:
+ ret = reserve_metadata_bytes(root, block_rsv, blocksize,
+ BTRFS_RESERVE_NO_FLUSH);
if (!ret)
return block_rsv;
- if (ret && !block_rsv->failfast) {
- if (btrfs_test_opt(root, ENOSPC_DEBUG)) {
- static DEFINE_RATELIMIT_STATE(_rs,
- DEFAULT_RATELIMIT_INTERVAL * 10,
- /*DEFAULT_RATELIMIT_BURST*/ 1);
- if (__ratelimit(&_rs))
- WARN(1, KERN_DEBUG
- "btrfs: block rsv returned %d\n", ret);
- }
- ret = reserve_metadata_bytes(root, block_rsv, blocksize,
- BTRFS_RESERVE_NO_FLUSH);
- if (!ret) {
- return block_rsv;
- } else if (ret && block_rsv != global_rsv) {
- ret = block_rsv_use_bytes(global_rsv, blocksize);
- if (!ret)
- return global_rsv;
- }
+ /*
+ * If we couldn't reserve metadata bytes try and use some from
+ * the global reserve if its space type is the same as the global
+ * reservation.
+ */
+ if (block_rsv->type != BTRFS_BLOCK_RSV_GLOBAL &&
+ block_rsv->space_info == global_rsv->space_info) {
+ ret = block_rsv_use_bytes(global_rsv, blocksize);
+ if (!ret)
+ return global_rsv;
}
-
- return ERR_PTR(-ENOSPC);
+ return ERR_PTR(ret);
}
static void unuse_block_rsv(struct btrfs_fs_info *fs_info,