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btrfs: qgroup: Use new metadata reservation. 

As we have the new metadata reservation functions, use them to replace
the old btrfs_qgroup_reserve() call for metadata.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
steinar/wifi_calib_4_9_kernel
Qu Wenruo 2015-09-08 17:22:41 +08:00 committed by Chris Mason
parent 55eeaf0578
commit 7174109c65
3 changed files with 13 additions and 36 deletions
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14
fs/btrfs/extent-tree.c
View File

@ -5337,7 +5337,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
if (root->fs_info->quota_enabled) {
/* One for parent inode, two for dir entries */
num_bytes = 3 * root->nodesize;
ret = btrfs_qgroup_reserve(root, num_bytes);
ret = btrfs_qgroup_reserve_meta(root, num_bytes);
if (ret)
return ret;
} else {
@ -5355,10 +5355,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
if (ret == -ENOSPC && use_global_rsv)
ret = btrfs_block_rsv_migrate(global_rsv, rsv, num_bytes);
if (ret) {
if (*qgroup_reserved)
btrfs_qgroup_free(root, *qgroup_reserved);
}
if (ret && *qgroup_reserved)
btrfs_qgroup_free_meta(root, *qgroup_reserved);
return ret;
}
@ -5519,15 +5517,15 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
spin_unlock(&BTRFS_I(inode)->lock);
if (root->fs_info->quota_enabled) {
ret = btrfs_qgroup_reserve(root, nr_extents * root->nodesize);
ret = btrfs_qgroup_reserve_meta(root,
nr_extents * root->nodesize);
if (ret)
goto out_fail;
}
ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush);
if (unlikely(ret)) {
if (root->fs_info->quota_enabled)
btrfs_qgroup_free(root, nr_extents * root->nodesize);
btrfs_qgroup_free_meta(root, nr_extents * root->nodesize);
goto out_fail;
}

34
fs/btrfs/transaction.c
View File

@ -480,13 +480,10 @@ start_transaction(struct btrfs_root *root, unsigned int num_items,
* the appropriate flushing if need be.
*/
if (num_items > 0 && root != root->fs_info->chunk_root) {
if (root->fs_info->quota_enabled &&
is_fstree(root->root_key.objectid)) {
qgroup_reserved = num_items * root->nodesize;
ret = btrfs_qgroup_reserve(root, qgroup_reserved);
if (ret)
return ERR_PTR(ret);
}
qgroup_reserved = num_items * root->nodesize;
ret = btrfs_qgroup_reserve_meta(root, qgroup_reserved);
if (ret)
return ERR_PTR(ret);
num_bytes = btrfs_calc_trans_metadata_size(root, num_items);
/*
@ -547,6 +544,7 @@ again:
h->transaction = cur_trans;
h->root = root;
h->use_count = 1;
h->type = type;
h->can_flush_pending_bgs = true;
INIT_LIST_HEAD(&h->qgroup_ref_list);
@ -568,7 +566,6 @@ again:
h->bytes_reserved = num_bytes;
h->reloc_reserved = reloc_reserved;
}
h->qgroup_reserved = qgroup_reserved;
got_it:
btrfs_record_root_in_trans(h, root);
@ -586,8 +583,7 @@ alloc_fail:
btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,
num_bytes);
reserve_fail:
if (qgroup_reserved)
btrfs_qgroup_free(root, qgroup_reserved);
btrfs_qgroup_free_meta(root, qgroup_reserved);
return ERR_PTR(ret);
}
@ -805,15 +801,6 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
must_run_delayed_refs = 2;
}
if (trans->qgroup_reserved) {
/*
* the same root has to be passed here between start_transaction
* and end_transaction. Subvolume quota depends on this.
*/
btrfs_qgroup_free(trans->root, trans->qgroup_reserved);
trans->qgroup_reserved = 0;
}
btrfs_trans_release_metadata(trans, root);
trans->block_rsv = NULL;
@ -1231,6 +1218,7 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans,
spin_lock(&fs_info->fs_roots_radix_lock);
if (err)
break;
btrfs_qgroup_free_meta_all(root);
}
}
spin_unlock(&fs_info->fs_roots_radix_lock);
@ -1835,10 +1823,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_trans_release_metadata(trans, root);
trans->block_rsv = NULL;
if (trans->qgroup_reserved) {
btrfs_qgroup_free(root, trans->qgroup_reserved);
trans->qgroup_reserved = 0;
}
cur_trans = trans->transaction;
@ -2191,10 +2175,6 @@ cleanup_transaction:
btrfs_trans_release_metadata(trans, root);
btrfs_trans_release_chunk_metadata(trans);
trans->block_rsv = NULL;
if (trans->qgroup_reserved) {
btrfs_qgroup_free(root, trans->qgroup_reserved);
trans->qgroup_reserved = 0;
}
btrfs_warn(root->fs_info, "Skipping commit of aborted transaction.");
if (current->journal_info == trans)
current->journal_info = NULL;

1
fs/btrfs/transaction.h
View File

@ -107,7 +107,6 @@ struct btrfs_trans_handle {
u64 transid;
u64 bytes_reserved;
u64 chunk_bytes_reserved;
u64 qgroup_reserved;
unsigned long use_count;
unsigned long blocks_reserved;
unsigned long blocks_used;