Btrfs: use slabs for delayed reference allocation
The delayed reference allocation is in the fast path of the IO, so use slabs
to improve the speed of the allocation.
And besides that, it can do check for leaked objects when the module is removed.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 61da9d0..9bd87f0 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2285,7 +2285,7 @@
ref = &locked_ref->node;
if (extent_op && must_insert_reserved) {
- kfree(extent_op);
+ btrfs_free_delayed_extent_op(extent_op);
extent_op = NULL;
}
@@ -2294,7 +2294,7 @@
ret = run_delayed_extent_op(trans, root,
ref, extent_op);
- kfree(extent_op);
+ btrfs_free_delayed_extent_op(extent_op);
if (ret) {
list_del_init(&locked_ref->cluster);
@@ -2338,7 +2338,7 @@
must_insert_reserved);
btrfs_put_delayed_ref(ref);
- kfree(extent_op);
+ btrfs_free_delayed_extent_op(extent_op);
count++;
if (ret) {
@@ -2586,7 +2586,7 @@
struct btrfs_delayed_extent_op *extent_op;
int ret;
- extent_op = kmalloc(sizeof(*extent_op), GFP_NOFS);
+ extent_op = btrfs_alloc_delayed_extent_op();
if (!extent_op)
return -ENOMEM;
@@ -2598,7 +2598,7 @@
ret = btrfs_add_delayed_extent_op(root->fs_info, trans, bytenr,
num_bytes, extent_op);
if (ret)
- kfree(extent_op);
+ btrfs_free_delayed_extent_op(extent_op);
return ret;
}
@@ -5330,7 +5330,7 @@
if (head->extent_op) {
if (!head->must_insert_reserved)
goto out;
- kfree(head->extent_op);
+ btrfs_free_delayed_extent_op(head->extent_op);
head->extent_op = NULL;
}
@@ -6400,7 +6400,7 @@
if (root_objectid != BTRFS_TREE_LOG_OBJECTID) {
struct btrfs_delayed_extent_op *extent_op;
- extent_op = kmalloc(sizeof(*extent_op), GFP_NOFS);
+ extent_op = btrfs_alloc_delayed_extent_op();
BUG_ON(!extent_op); /* -ENOMEM */
if (key)
memcpy(&extent_op->key, key, sizeof(extent_op->key));