Btrfs: add an assert to btrfs_lookup_csums_range for alignment

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / btrfs / file-item.c

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 4f53159..ae8a513 100644 (file)
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
        u64 csum_end;
        u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
 
+       ASSERT(start == ALIGN(start, root->sectorsize) &&
+              (end + 1) == ALIGN(end + 1, root->sectorsize));
+
        path = btrfs_alloc_path();
        if (!path)
                return -ENOMEM;