Re: [PATCH] xfs: clean up some inconsistent indenting

From: Dave Chinner
Date: Thu Sep 02 2021 - 19:31:49 EST


On Thu, Sep 02, 2021 at 11:52:19PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> There are bunch of statements where the indentation is not correct,
> clean these up.
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> fs/xfs/xfs_log.c | 29 ++++++++++++++---------------
> 1 file changed, 14 insertions(+), 15 deletions(-)

Good idea, but I see no point in only fixing one of the many style
violations this ancient debug code has whilst introducing new ones
(i.e line lengths > 80 columns).

> diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
> index f6cd2d4aa770..9afc58a1a9ee 100644
> --- a/fs/xfs/xfs_log.c
> +++ b/fs/xfs/xfs_log.c
> @@ -3700,21 +3700,20 @@ xlog_verify_tail_lsn(
> xfs_lsn_t tail_lsn = be64_to_cpu(iclog->ic_header.h_tail_lsn);
> int blocks;
>
> - if (CYCLE_LSN(tail_lsn) == log->l_prev_cycle) {
> - blocks =
> - log->l_logBBsize - (log->l_prev_block - BLOCK_LSN(tail_lsn));
> - if (blocks < BTOBB(iclog->ic_offset)+BTOBB(log->l_iclog_hsize))
> - xfs_emerg(log->l_mp, "%s: ran out of log space", __func__);
> - } else {
> - ASSERT(CYCLE_LSN(tail_lsn)+1 == log->l_prev_cycle);
> -
> - if (BLOCK_LSN(tail_lsn) == log->l_prev_block)
> - xfs_emerg(log->l_mp, "%s: tail wrapped", __func__);
> -
> - blocks = BLOCK_LSN(tail_lsn) - log->l_prev_block;
> - if (blocks < BTOBB(iclog->ic_offset) + 1)
> - xfs_emerg(log->l_mp, "%s: ran out of log space", __func__);
> - }
> + if (CYCLE_LSN(tail_lsn) == log->l_prev_cycle) {
> + blocks = log->l_logBBsize - (log->l_prev_block - BLOCK_LSN(tail_lsn));

Line length.

> + if (blocks < BTOBB(iclog->ic_offset)+BTOBB(log->l_iclog_hsize))

Lack of whitespace around "="

> + xfs_emerg(log->l_mp, "%s: ran out of log space", __func__);

Line length.

> + } else {

Return from the if {} block rather than using an else statement, and
the indent of this block doesn't change:

> + ASSERT(CYCLE_LSN(tail_lsn)+1 == log->l_prev_cycle);

Whitespace.
> +
> + if (BLOCK_LSN(tail_lsn) == log->l_prev_block)
> + xfs_emerg(log->l_mp, "%s: tail wrapped", __func__);
> +
> + blocks = BLOCK_LSN(tail_lsn) - log->l_prev_block;
> + if (blocks < BTOBB(iclog->ic_offset) + 1)
> + xfs_emerg(log->l_mp, "%s: ran out of log space", __func__);

And because this doesn't need indent because of the return above, it
won't violate line length limits...

Cheers,

Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx