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-rw-r--r--fs/btrfs/extent-tree.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9bcb3570750e..1aee51a9f3bf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -757,12 +757,14 @@ static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info,
}
static void add_pinned_bytes(struct btrfs_fs_info *fs_info,
- struct btrfs_ref *ref)
+ struct btrfs_ref *ref, int sign)
{
struct btrfs_space_info *space_info;
- s64 num_bytes = -ref->len;
+ s64 num_bytes;
u64 flags;
+ ASSERT(sign == 1 || sign == -1);
+ num_bytes = sign * ref->len;
if (ref->type == BTRFS_REF_METADATA) {
if (ref->tree_ref.root == BTRFS_CHUNK_TREE_OBJECTID)
flags = BTRFS_BLOCK_GROUP_SYSTEM;
@@ -2063,7 +2065,7 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
btrfs_ref_tree_mod(fs_info, generic_ref);
if (ret == 0 && old_ref_mod < 0 && new_ref_mod >= 0)
- add_pinned_bytes(fs_info, generic_ref);
+ add_pinned_bytes(fs_info, generic_ref, -1);
return ret;
}
@@ -7189,7 +7191,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
}
out:
if (pin)
- add_pinned_bytes(fs_info, &generic_ref);
+ add_pinned_bytes(fs_info, &generic_ref, 1);
if (last_ref) {
/*
@@ -7237,7 +7239,7 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref)
btrfs_ref_tree_mod(fs_info, ref);
if (ret == 0 && old_ref_mod >= 0 && new_ref_mod < 0)
- add_pinned_bytes(fs_info, ref);
+ add_pinned_bytes(fs_info, ref, 1);
return ret;
}