Repeating the same computation in multiple places is not
necessary.
Signed-off-by: Edmund Nadolski <[email protected]>
Signed-off-by: Jeff Mahoney <[email protected]>
---
fs/btrfs/backref.c | 30 +++++++++++++-----------------
1 file changed, 13 insertions(+), 17 deletions(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 5011b2f..7393a6f 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -764,7 +764,7 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
struct btrfs_key key;
struct btrfs_key tmp_op_key;
struct btrfs_key *op_key = NULL;
- int sgn;
+ int count;
int ret = 0;
if (extent_op && extent_op->update_key) {
@@ -783,15 +783,15 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
WARN_ON(1);
continue;
case BTRFS_ADD_DELAYED_REF:
- sgn = 1;
+ count = node->ref_mod;
break;
case BTRFS_DROP_DELAYED_REF:
- sgn = -1;
+ count = node->ref_mod * -1;
break;
default:
BUG_ON(1);
}
- *total_refs += (node->ref_mod * sgn);
+ *total_refs += count;
switch (node->type) {
case BTRFS_TREE_BLOCK_REF_KEY: {
/* NORMAL INDIRECT METADATA backref */
@@ -800,9 +800,8 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
ref = btrfs_delayed_node_to_tree_ref(node);
ret = add_indirect_ref(fs_info, preftrees, ref->root,
&tmp_op_key, ref->level + 1,
- node->bytenr,
- node->ref_mod * sgn,
- sc, GFP_ATOMIC);
+ node->bytenr, count, sc,
+ GFP_ATOMIC);
break;
}
case BTRFS_SHARED_BLOCK_REF_KEY: {
@@ -811,9 +810,8 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
ref = btrfs_delayed_node_to_tree_ref(node);
- ret = add_direct_ref(fs_info, preftrees,
- ref->level + 1, ref->parent,
- node->bytenr, node->ref_mod * sgn,
+ ret = add_direct_ref(fs_info, preftrees, ref->level + 1,
+ ref->parent, node->bytenr, count,
sc, GFP_ATOMIC);
break;
}
@@ -836,9 +834,8 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
}
ret = add_indirect_ref(fs_info, preftrees, ref->root,
- &key, 0, node->bytenr,
- node->ref_mod * sgn,
- sc, GFP_ATOMIC);
+ &key, 0, node->bytenr, count, sc,
+ GFP_ATOMIC);
break;
}
case BTRFS_SHARED_DATA_REF_KEY: {
@@ -847,10 +844,9 @@ static int add_delayed_refs(const struct btrfs_fs_info
*fs_info,
ref = btrfs_delayed_node_to_data_ref(node);
- ret = add_direct_ref(fs_info, preftrees, 0,
- ref->parent, node->bytenr,
- node->ref_mod * sgn,
- sc, GFP_ATOMIC);
+ ret = add_direct_ref(fs_info, preftrees, 0, ref->parent,
+ node->bytenr, count, sc,
+ GFP_ATOMIC);
break;
}
default:
--
2.10.2
--
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