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authorPhilipp Hahn <phahn-oss@avm.de>2026-03-10 14:48:28 +0300
committerDavid Sterba <dsterba@suse.com>2026-04-07 19:56:02 +0300
commite5267796482fad93ee7948c7cbc37f32046244f7 (patch)
tree49873c743e0efdff1876a00dc4414e417b39b0f5
parent94e445085c7be52c1cc937959fa8254b56cdf672 (diff)
downloadlinux-e5267796482fad93ee7948c7cbc37f32046244f7.tar.xz
btrfs: prefer IS_ERR_OR_NULL() over manual NULL check
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL check. IS_ERR_OR_NULL() already uses likely(!ptr) internally. checkpatch does not like nesting it: > WARNING: nested (un)?likely() calls, IS_ERR_OR_NULL already uses > unlikely() internally Remove the explicit use of likely(). Change generated with coccinelle. Signed-off-by: Philipp Hahn <phahn-oss@avm.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/inode.c2
-rw-r--r--fs/btrfs/transaction.c2
-rw-r--r--fs/btrfs/tree-log.c2
-rw-r--r--fs/btrfs/uuid-tree.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c1abeb72069c..8d97a8ad3858 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4691,7 +4691,7 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
dir_id = btrfs_super_root_dir(fs_info->super_copy);
di = btrfs_lookup_dir_item(NULL, fs_info->tree_root, path,
dir_id, &name, 0);
- if (di && !IS_ERR(di)) {
+ if (!IS_ERR_OR_NULL(di)) {
btrfs_dir_item_key_to_cpu(path->nodes[0], di, &key);
if (key.objectid == btrfs_root_id(root)) {
ret = -EPERM;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 79c488f120b2..4358f4b63057 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1754,7 +1754,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
dir_item = btrfs_lookup_dir_item(NULL, parent_root, path,
btrfs_ino(parent_inode),
&fname.disk_name, 0);
- if (unlikely(dir_item != NULL && !IS_ERR(dir_item))) {
+ if (!IS_ERR_OR_NULL(dir_item)) {
pending->error = -EEXIST;
goto dir_item_existed;
} else if (IS_ERR(dir_item)) {
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index af8de67d1304..a87fdfd465b3 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -5801,7 +5801,7 @@ static int btrfs_check_ref_name_override(struct extent_buffer *eb,
name_str.len = this_name_len;
di = btrfs_lookup_dir_item(NULL, inode->root, search_path,
parent, &name_str, 0);
- if (di && !IS_ERR(di)) {
+ if (!IS_ERR_OR_NULL(di)) {
struct btrfs_key di_key;
btrfs_dir_item_key_to_cpu(search_path->nodes[0],
diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c
index 276f0eb874d4..467dff7212d6 100644
--- a/fs/btrfs/uuid-tree.c
+++ b/fs/btrfs/uuid-tree.c
@@ -513,7 +513,7 @@ skip:
out:
btrfs_free_path(path);
- if (trans && !IS_ERR(trans))
+ if (!IS_ERR_OR_NULL(trans))
btrfs_end_transaction(trans);
if (ret)
btrfs_warn(fs_info, "btrfs_uuid_scan_kthread failed %d", ret);