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path: root/fs/btrfs/qgroup.c
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Diffstat (limited to 'fs/btrfs/qgroup.c')
-rw-r--r--fs/btrfs/qgroup.c50
1 files changed, 26 insertions, 24 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index ccaa9a3cf1ce..1175b8192cd7 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1069,7 +1069,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
}
path = btrfs_alloc_path();
- if (!path) {
+ if (unlikely(!path)) {
ret = -ENOMEM;
btrfs_abort_transaction(trans, ret);
goto out_free_root;
@@ -1081,7 +1081,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
sizeof(*ptr));
- if (ret) {
+ if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1111,7 +1111,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
ret = btrfs_search_slot_for_read(tree_root, &key, path, 1, 0);
if (ret > 0)
goto out_add_root;
- if (ret < 0) {
+ if (unlikely(ret < 0)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1129,7 +1129,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
/* We should not have a stray @prealloc pointer. */
ASSERT(prealloc == NULL);
prealloc = kzalloc(sizeof(*prealloc), GFP_NOFS);
- if (!prealloc) {
+ if (unlikely(!prealloc)) {
ret = -ENOMEM;
btrfs_abort_transaction(trans, ret);
goto out_free_path;
@@ -1137,7 +1137,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
ret = add_qgroup_item(trans, quota_root,
found_key.offset);
- if (ret) {
+ if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1145,13 +1145,13 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
qgroup = add_qgroup_rb(fs_info, prealloc, found_key.offset);
prealloc = NULL;
ret = btrfs_sysfs_add_one_qgroup(fs_info, qgroup);
- if (ret < 0) {
+ if (unlikely(ret < 0)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
ret = btrfs_search_slot_for_read(tree_root, &found_key,
path, 1, 0);
- if (ret < 0) {
+ if (unlikely(ret < 0)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1165,7 +1165,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
}
}
ret = btrfs_next_item(tree_root, path);
- if (ret < 0) {
+ if (unlikely(ret < 0)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1176,7 +1176,7 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info,
out_add_root:
btrfs_release_path(path);
ret = add_qgroup_item(trans, quota_root, BTRFS_FS_TREE_OBJECTID);
- if (ret) {
+ if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1190,7 +1190,7 @@ out_add_root:
qgroup = add_qgroup_rb(fs_info, prealloc, BTRFS_FS_TREE_OBJECTID);
prealloc = NULL;
ret = btrfs_sysfs_add_one_qgroup(fs_info, qgroup);
- if (ret < 0) {
+ if (unlikely(ret < 0)) {
btrfs_abort_transaction(trans, ret);
goto out_free_path;
}
@@ -1376,13 +1376,13 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
btrfs_free_qgroup_config(fs_info);
ret = btrfs_clean_quota_tree(trans, quota_root);
- if (ret) {
+ if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
goto out;
}
ret = btrfs_del_root(trans, &quota_root->root_key);
- if (ret) {
+ if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
goto out;
}
@@ -1455,6 +1455,7 @@ static int __qgroup_excl_accounting(struct btrfs_fs_info *fs_info, u64 ref_root,
struct btrfs_qgroup *qgroup;
LIST_HEAD(qgroup_list);
u64 num_bytes = src->excl;
+ u64 num_bytes_cmpr = src->excl_cmpr;
int ret = 0;
qgroup = find_qgroup_rb(fs_info, ref_root);
@@ -1466,11 +1467,12 @@ static int __qgroup_excl_accounting(struct btrfs_fs_info *fs_info, u64 ref_root,
struct btrfs_qgroup_list *glist;
qgroup->rfer += sign * num_bytes;
- qgroup->rfer_cmpr += sign * num_bytes;
+ qgroup->rfer_cmpr += sign * num_bytes_cmpr;
WARN_ON(sign < 0 && qgroup->excl < num_bytes);
+ WARN_ON(sign < 0 && qgroup->excl_cmpr < num_bytes_cmpr);
qgroup->excl += sign * num_bytes;
- qgroup->excl_cmpr += sign * num_bytes;
+ qgroup->excl_cmpr += sign * num_bytes_cmpr;
if (sign > 0)
qgroup_rsv_add_by_qgroup(fs_info, qgroup, src);
@@ -2424,9 +2426,9 @@ static int qgroup_trace_new_subtree_blocks(struct btrfs_trans_handle* trans,
int i;
/* Level sanity check */
- if (cur_level < 0 || cur_level >= BTRFS_MAX_LEVEL - 1 ||
- root_level < 0 || root_level >= BTRFS_MAX_LEVEL - 1 ||
- root_level < cur_level) {
+ if (unlikely(cur_level < 0 || cur_level >= BTRFS_MAX_LEVEL - 1 ||
+ root_level < 0 || root_level >= BTRFS_MAX_LEVEL - 1 ||
+ root_level < cur_level)) {
btrfs_err_rl(fs_info,
"%s: bad levels, cur_level=%d root_level=%d",
__func__, cur_level, root_level);
@@ -2442,7 +2444,7 @@ static int qgroup_trace_new_subtree_blocks(struct btrfs_trans_handle* trans,
* dst_path->nodes[root_level] must be initialized before
* calling this function.
*/
- if (cur_level == root_level) {
+ if (unlikely(cur_level == root_level)) {
btrfs_err_rl(fs_info,
"%s: dst_path->nodes[%d] not initialized, root_level=%d cur_level=%d",
__func__, root_level, root_level, cur_level);
@@ -2528,7 +2530,7 @@ static int qgroup_trace_subtree_swap(struct btrfs_trans_handle *trans,
return 0;
/* Wrong parameter order */
- if (btrfs_header_generation(src_eb) > btrfs_header_generation(dst_eb)) {
+ if (unlikely(btrfs_header_generation(src_eb) > btrfs_header_generation(dst_eb))) {
btrfs_err_rl(fs_info,
"%s: bad parameter order, src_gen=%llu dst_gen=%llu", __func__,
btrfs_header_generation(src_eb),
@@ -2536,7 +2538,7 @@ static int qgroup_trace_subtree_swap(struct btrfs_trans_handle *trans,
return -EUCLEAN;
}
- if (!extent_buffer_uptodate(src_eb) || !extent_buffer_uptodate(dst_eb)) {
+ if (unlikely(!extent_buffer_uptodate(src_eb) || !extent_buffer_uptodate(dst_eb))) {
ret = -EIO;
goto out;
}
@@ -2727,7 +2729,7 @@ static void qgroup_iterator_nested_clean(struct list_head *head)
*/
static void qgroup_update_refcnt(struct btrfs_fs_info *fs_info,
struct ulist *roots, struct list_head *qgroups,
- u64 seq, int update_old)
+ u64 seq, bool update_old)
{
struct ulist_node *unode;
struct ulist_iterator uiter;
@@ -4708,8 +4710,8 @@ int btrfs_qgroup_add_swapped_blocks(struct btrfs_root *subvol_root,
if (!btrfs_qgroup_full_accounting(fs_info))
return 0;
- if (btrfs_node_ptr_generation(subvol_parent, subvol_slot) >
- btrfs_node_ptr_generation(reloc_parent, reloc_slot)) {
+ if (unlikely(btrfs_node_ptr_generation(subvol_parent, subvol_slot) >
+ btrfs_node_ptr_generation(reloc_parent, reloc_slot))) {
btrfs_err_rl(fs_info,
"%s: bad parameter order, subvol_gen=%llu reloc_gen=%llu",
__func__,
@@ -4841,7 +4843,7 @@ int btrfs_qgroup_trace_subtree_after_cow(struct btrfs_trans_handle *trans,
reloc_eb = NULL;
goto free_out;
}
- if (!extent_buffer_uptodate(reloc_eb)) {
+ if (unlikely(!extent_buffer_uptodate(reloc_eb))) {
ret = -EIO;
goto free_out;
}