At Fri, 15 Sep 2017 01:57:26 +0300,
Timofey Titovets wrote:
>
> Was added in:
> c8b978188c9a0fd3d535c13debd19d522b726f1f
> "Btrfs: Add zlib compression support"
> Survive to near time (from 08.10.2008).
>
> Because 'start' checked for zero before branch, so it's
> safe to remove that subtraction.
>
> Signed-off-by: Timofey Titovets <nefelim4ag@xxxxxxxxx>
Reviewed-by: Satoru Takeuchi <satoru.takeuchi@xxxxxxxxx>
> ---
> fs/btrfs/inode.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index 02ef32149c15..81123408e82e 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -570,7 +570,7 @@ static noinline void compress_file_range(struct inode *inode,
> cont:
> if (start == 0) {
> /* lets try to make an inline extent */
> - if (ret || total_in < (actual_end - start)) {
> + if (ret || total_in < actual_end) {
> /* we didn't compress the entire range, try
> * to make an uncompressed inline extent.
> */
> --
> 2.14.1
>
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