LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Borislav Petkov <petkovbb@googlemail.com>
Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
	Borislav Petkov <petkovbb@gmail.com>
Subject: Re: [PATCH 07/22] ide-tape: struct idetape_tape_t: shorten member names v2
Date: Tue, 5 Feb 2008 02:23:21 +0100	[thread overview]
Message-ID: <200802050223.21176.bzolnier@gmail.com> (raw)
In-Reply-To: <1202132440-26648-8-git-send-email-petkovbb@gmail.com>

On Monday 04 February 2008, Borislav Petkov wrote:
> Shorten some member names not too aggressively since this driver might be gone
> anyway soon.
> 
> Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
> ---
>  drivers/ide/ide-tape.c |  210 ++++++++++++++++++++++++++----------------------
>  1 files changed, 113 insertions(+), 97 deletions(-)
> 
> diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
> index 126e8a9..0b5ccce 100644
> --- a/drivers/ide/ide-tape.c
> +++ b/drivers/ide/ide-tape.c

[...]

> @@ -1583,7 +1579,8 @@ static void idetape_create_read_cmd(idetape_tape_t *tape, idetape_pc_t *pc, unsi
>  	pc->bh = bh;
>  	atomic_set(&bh->b_count, 0);
>  	pc->buffer = NULL;
> -	pc->request_transfer = pc->buffer_size = length * tape->tape_block_size;
> +	pc->buffer_size		= length * tape->blk_size;
> +	pc->request_transfer	= length * tape->blk_size;
>  	if (pc->request_transfer == tape->stage_size)
>  		set_bit(PC_DMA_RECOMMENDED, &pc->flags);
>  }
> @@ -1621,7 +1618,8 @@ static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc, uns
>  	pc->b_data = bh->b_data;
>  	pc->b_count = atomic_read(&bh->b_count);
>  	pc->buffer = NULL;
> -	pc->request_transfer = pc->buffer_size = length * tape->tape_block_size;
> +	pc->request_transfer	= length * tape->blk_size;
> +	pc->buffer_size		= length * tape->blk_size;
>  	if (pc->request_transfer == tape->stage_size)
>  		set_bit(PC_DMA_RECOMMENDED, &pc->flags);
>  }

for some reason gcc doesn't seem to optimize the new code as well as
the old one (=> driver size goes up instead of staying unchanged)

interdiff between original patch and merged version:

diff -u b/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
--- b/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -324,7 +324,7 @@
 	/* Current character device data transfer direction */
 	u8 chrdev_dir;
 
-	/* tape block size, usu. 512 or 1024 bytes */
+	/* tape block size, usually 512 or 1024 bytes */
 	unsigned short blk_size;
 	int user_bs_factor;
 
@@ -1580,8 +1580,8 @@
 	pc->bh = bh;
 	atomic_set(&bh->b_count, 0);
 	pc->buffer = NULL;
-	pc->buffer_size		= length * tape->blk_size;
-	pc->request_transfer	= length * tape->blk_size;
+	pc->buffer_size = length * tape->blk_size;
+	pc->request_transfer = pc->buffer_size;
 	if (pc->request_transfer == tape->stage_size)
 		set_bit(PC_DMA_RECOMMENDED, &pc->flags);
 }
@@ -1619,8 +1619,8 @@
 	pc->b_data = bh->b_data;
 	pc->b_count = atomic_read(&bh->b_count);
 	pc->buffer = NULL;
-	pc->request_transfer	= length * tape->blk_size;
-	pc->buffer_size		= length * tape->blk_size;
+	pc->buffer_size = length * tape->blk_size;
+	pc->request_transfer = pc->buffer_size;
 	if (pc->request_transfer == tape->stage_size)
 		set_bit(PC_DMA_RECOMMENDED, &pc->flags);
 }

  reply	other threads:[~2008-02-05  1:16 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-04 13:40 Borislav Petkov
2008-02-04 13:40 ` [PATCH 01/22] ide-tape: refactor the debug logging facility Borislav Petkov
2008-02-04 13:40 ` [PATCH 02/22] ide-tape: remove struct idetape_read_position_result_t Borislav Petkov
2008-02-05  1:23   ` Bartlomiej Zolnierkiewicz
2008-02-04 13:40 ` [PATCH 03/22] ide-tape: remove unreachable code chunk Borislav Petkov
2008-02-04 13:40 ` [PATCH 04/22] ide-tape: simplify code branching in the interrupt handler Borislav Petkov
2008-02-04 13:40 ` [PATCH 05/22] ide-tape: remove typedef idetape_chrdev_direction_t Borislav Petkov
2008-02-04 13:40 ` [PATCH 06/22] ide-tape: struct idetape_tape_t: remove unused members Borislav Petkov
2008-09-22 13:25   ` Sergei Shtylyov
2008-09-22 13:58     ` Boris Petkov
2008-09-22 15:50       ` Sergei Shtylyov
2008-02-04 13:40 ` [PATCH 07/22] ide-tape: struct idetape_tape_t: shorten member names v2 Borislav Petkov
2008-02-05  1:23   ` Bartlomiej Zolnierkiewicz [this message]
2008-02-05  4:47     ` Borislav Petkov
2008-02-04 13:40 ` [PATCH 08/22] ide-tape: remove packet command and struct request memory buffers Borislav Petkov
2008-02-04 13:40 ` [PATCH 09/22] ide-tape: remove idetape_increase_max_pipeline_stages() Borislav Petkov
2008-02-04 13:40 ` [PATCH 10/22] ide-tape: shorten some function names Borislav Petkov
2008-02-04 13:40 ` [PATCH 11/22] ide-tape: remove atomic test/set macros Borislav Petkov
2008-02-04 13:40 ` [PATCH 12/22] ide-tape: dump gcw fields on error in idetape_identify_device() Borislav Petkov
2008-02-04 13:40 ` [PATCH 13/22] ide-tape: remove struct idetape_id_gcw Borislav Petkov
2008-02-04 13:40 ` [PATCH 14/22] ide-tape: cleanup and fix comments Borislav Petkov
2008-02-05  1:27   ` Bartlomiej Zolnierkiewicz
2008-02-04 13:40 ` [PATCH 15/22] ide-tape: remove unused "length" arg from idetape_create_read_buffer_cmd() Borislav Petkov
2008-02-04 13:40 ` [PATCH 16/22] ide-tape: include proper headers Borislav Petkov
2008-02-04 13:40 ` [PATCH 17/22] ide-tape: collect module-related macro calls at the end Borislav Petkov
2008-02-04 13:40 ` [PATCH 18/22] ide-tape: remove leftover OnStream support warning Borislav Petkov
2008-02-04 13:40 ` [PATCH 19/22] ide-tape: fix syntax error in idetape_identify_device() Borislav Petkov
2008-02-04 13:40 ` [PATCH 20/22] ide-tape: cleanup the remaining codestyle issues Borislav Petkov
2008-02-05  1:27   ` Bartlomiej Zolnierkiewicz
2008-02-04 13:40 ` [PATCH 21/22] ide-tape: bump minor driver version Borislav Petkov
2008-02-04 13:40 ` [PATCH 22/22] ide-tape: schedule driver for removal after 6 months in case it turns out Borislav Petkov
2008-02-05  1:20 ` ide-tape redux (was: Bartlomiej Zolnierkiewicz
2008-02-06  5:23   ` Borislav Petkov
2008-02-06  5:27     ` Borislav Petkov
2008-02-09 16:25       ` Bartlomiej Zolnierkiewicz
2008-02-09 19:42         ` [PATCH 1/2] ide-tape: move all struct and other defs at the top Borislav Petkov
2008-02-11 22:12           ` Bartlomiej Zolnierkiewicz
2008-02-09 16:25     ` ide-tape redux (was: Bartlomiej Zolnierkiewicz
2008-02-09 19:43       ` [PATCH 2/2] ide-tape: remove atomic test/set macros for packet commands Borislav Petkov
2008-02-11 22:12         ` Bartlomiej Zolnierkiewicz

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200802050223.21176.bzolnier@gmail.com \
    --to=bzolnier@gmail.com \
    --cc=linux-ide@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=petkovbb@gmail.com \
    --cc=petkovbb@googlemail.com \
    --subject='Re: [PATCH 07/22] ide-tape: struct idetape_tape_t: shorten member names v2' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).