btrfs: Use IS_ALIGNED in btrfs_truncate_block instead of opencoding it

No functional changes, just makes the code more readable

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d55aef46e8ae24a090bd4d0d80e1d7caedabcc26..c5f31817778bc1fe9dc5027153de3bfcd2cc759a 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4769,8 +4769,8 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
        u64 block_start;
        u64 block_end;
 
-       if ((offset & (blocksize - 1)) == 0 &&
-           (!len || ((len & (blocksize - 1)) == 0)))
+       if (IS_ALIGNED(offset, blocksize) &&
+           (!len || IS_ALIGNED(len, blocksize)))
                goto out;
 
        block_start = round_down(from, blocksize);