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-rw-r--r--fs/btrfs/dir-item.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/dir-item.h b/fs/btrfs/dir-item.h
index aab4b7cc7f..e40a226373 100644
--- a/fs/btrfs/dir-item.h
+++ b/fs/btrfs/dir-item.h
@@ -3,6 +3,10 @@
#ifndef BTRFS_DIR_ITEM_H
#define BTRFS_DIR_ITEM_H
+#include <linux/crc32c.h>
+
+struct fscrypt_str;
+
int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir,
const struct fscrypt_str *name);
int btrfs_insert_dir_item(struct btrfs_trans_handle *trans,
@@ -39,4 +43,9 @@ struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_fs_info *fs_info,
const char *name,
int name_len);
+static inline u64 btrfs_name_hash(const char *name, int len)
+{
+ return crc32c((u32)~1, name, len);
+}
+
#endif