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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-04-16 14:34:17 +0800
committerChris Mason <clm@fb.com>2015-06-10 09:25:32 -0700
commit3368d001ba5df44930d986e82b1b497d4da285ba (patch)
tree62797b833909d45d2e8b6244c4007d6661154f67 /fs/btrfs/delayed-ref.c
parent823ae5b8e340003dacbe7cd08a355efe018c9f1b (diff)
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btrfs: qgroup: Record possible quota-related extent for qgroup.
Add hook in add_delayed_ref_head() to record quota-related extent record into delayed_ref_root->dirty_extent_record rb-tree for later qgroup accounting. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/delayed-ref.c')
-rw-r--r--fs/btrfs/delayed-ref.c50
1 files changed, 43 insertions, 7 deletions
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index fc9563d42693..fd64fd0f011a 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -22,6 +22,7 @@
#include "ctree.h"
#include "delayed-ref.h"
#include "transaction.h"
+#include "qgroup.h"
struct kmem_cache *btrfs_delayed_ref_head_cachep;
struct kmem_cache *btrfs_delayed_tree_ref_cachep;
@@ -420,12 +421,14 @@ update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
static noinline struct btrfs_delayed_ref_head *
add_delayed_ref_head(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
- struct btrfs_delayed_ref_node *ref, u64 bytenr,
- u64 num_bytes, int action, int is_data)
+ struct btrfs_delayed_ref_node *ref,
+ struct btrfs_qgroup_extent_record *qrecord,
+ u64 bytenr, u64 num_bytes, int action, int is_data)
{
struct btrfs_delayed_ref_head *existing;
struct btrfs_delayed_ref_head *head_ref = NULL;
struct btrfs_delayed_ref_root *delayed_refs;
+ struct btrfs_qgroup_extent_record *qexisting;
int count_mod = 1;
int must_insert_reserved = 0;
@@ -474,6 +477,18 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info,
head_ref->processing = 0;
head_ref->total_ref_mod = count_mod;
+ /* Record qgroup extent info if provided */
+ if (qrecord) {
+ qrecord->bytenr = bytenr;
+ qrecord->num_bytes = num_bytes;
+ qrecord->old_roots = NULL;
+
+ qexisting = btrfs_qgroup_insert_dirty_extent(delayed_refs,
+ qrecord);
+ if (qexisting)
+ kfree(qrecord);
+ }
+
spin_lock_init(&head_ref->lock);
mutex_init(&head_ref->mutex);
@@ -624,6 +639,7 @@ int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
struct btrfs_delayed_tree_ref *ref;
struct btrfs_delayed_ref_head *head_ref;
struct btrfs_delayed_ref_root *delayed_refs;
+ struct btrfs_qgroup_extent_record *record = NULL;
if (!is_fstree(ref_root) || !fs_info->quota_enabled)
no_quota = 0;
@@ -639,6 +655,15 @@ int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
return -ENOMEM;
}
+ if (fs_info->quota_enabled && is_fstree(ref_root)) {
+ record = kmalloc(sizeof(*record), GFP_NOFS);
+ if (!record) {
+ kmem_cache_free(btrfs_delayed_tree_ref_cachep, ref);
+ kmem_cache_free(btrfs_delayed_ref_head_cachep, ref);
+ return -ENOMEM;
+ }
+ }
+
head_ref->extent_op = extent_op;
delayed_refs = &trans->transaction->delayed_refs;
@@ -648,7 +673,7 @@ int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
* insert both the head node and the new ref without dropping
* the spin lock
*/
- head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node,
+ head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node, record,
bytenr, num_bytes, action, 0);
add_delayed_tree_ref(fs_info, trans, head_ref, &ref->node, bytenr,
@@ -673,6 +698,7 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
struct btrfs_delayed_data_ref *ref;
struct btrfs_delayed_ref_head *head_ref;
struct btrfs_delayed_ref_root *delayed_refs;
+ struct btrfs_qgroup_extent_record *record = NULL;
if (!is_fstree(ref_root) || !fs_info->quota_enabled)
no_quota = 0;
@@ -688,6 +714,16 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
return -ENOMEM;
}
+ if (fs_info->quota_enabled && is_fstree(ref_root)) {
+ record = kmalloc(sizeof(*record), GFP_NOFS);
+ if (!record) {
+ kmem_cache_free(btrfs_delayed_data_ref_cachep, ref);
+ kmem_cache_free(btrfs_delayed_ref_head_cachep,
+ head_ref);
+ return -ENOMEM;
+ }
+ }
+
head_ref->extent_op = extent_op;
delayed_refs = &trans->transaction->delayed_refs;
@@ -697,7 +733,7 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
* insert both the head node and the new ref without dropping
* the spin lock
*/
- head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node,
+ head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node, record,
bytenr, num_bytes, action, 1);
add_delayed_data_ref(fs_info, trans, head_ref, &ref->node, bytenr,
@@ -725,9 +761,9 @@ int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
delayed_refs = &trans->transaction->delayed_refs;
spin_lock(&delayed_refs->lock);
- add_delayed_ref_head(fs_info, trans, &head_ref->node, bytenr,
- num_bytes, BTRFS_UPDATE_DELAYED_HEAD,
- extent_op->is_data);
+ add_delayed_ref_head(fs_info, trans, &head_ref->node, NULL, bytenr,
+ num_bytes, BTRFS_UPDATE_DELAYED_HEAD,
+ extent_op->is_data);
spin_unlock(&delayed_refs->lock);
return 0;