lkml.org 
[lkml]   [2009]   [Mar]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 03/10] ide: destroy DMA mappings after ending DMA
Hello.

Bartlomiej Zolnierkiewicz wrote:

> From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Subject: [PATCH] ide: destroy DMA mappings after ending DMA
>
> Move ide_destroy_dmatable() call out from ->dma_end method to
> {ide_pc,cdrom_newpc,ide_dma}_intr(), ide_dma_timeout_retry()
> and sgiioc4_resetproc().
>
> This causes minor/safe behavior changes w.r.t.:
> * cmd64x.c::cmd64{8,x}_dma_end()
> * cs5536.c::cs5536_dma_end()
> * icside.c::icside_dma_end()
> * it821x.c::it821x_dma_end()
> * scc_pata.c::__scc_dma_end()
> * sl82c105.c::sl82c105_dma_end()
> * tx4939ide.c::tx4939ide_dma_end()
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
>

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
> Index: b/drivers/ide/sgiioc4.c
> ===================================================================
> --- a/drivers/ide/sgiioc4.c
> +++ b/drivers/ide/sgiioc4.c
> @@ -259,7 +259,6 @@ static int sgiioc4_dma_end(ide_drive_t *
> }
>
> drive->waiting_for_dma = 0;
> - ide_destroy_dmatable(drive);
>
> return dma_stat;
> }
> @@ -284,6 +283,7 @@ static void
> sgiioc4_resetproc(ide_drive_t * drive)
> {
> sgiioc4_dma_end(drive);
> + ide_destroy_dmatable(drive);
> sgiioc4_clearirq(drive);
> }

I somewhat doubt that resetproc() can be called with DMA still active...

MBR, Sergei




\
 
 \ /
  Last update: 2009-03-09 15:03    [W:0.175 / U:7.144 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site