Re: [PATCH] aacraid: add SCSI SYNCHONIZE_CACHE range checking (take 2)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



It's been a month now, any issues with this patch I am not aware of?

Sincerely -- Mark Salyzyn

From: linux-scsi-owner@xxxxxxxxxxxxxxx
[mailto:linux-scsi-owner@xxxxxxxxxxxxxxx] On Behalf Of Salyzyn, Mark
Sent: Wednesday, June 20, 2007 11:31 AM
To: linux-scsi@xxxxxxxxxxxxxxx
Subject: [PATCH] aacraid: add SCSI SYNCHONIZE_CACHE range checking (take
2)

There was some overlap with another patch (?) this one has not shown in
scsi-pending-2.6. Modernized to apply cleanly and did some extra
cleanup.

This attached patch is against current scsi-misc-2.6

ObligatoryDisclaimer: Please accept my condolences regarding Outlook's
handling of patch attachments.

Signed-off-by: Mark Salyzyn <aacraid@xxxxxxxxxxx>

 drivers/scsi/aacraid/aachba.c |   63
++++++++++++++++++++++++++++++++++++------
 1 file changed, 55 insertions(+), 8 deletions(-)

Sincerely -- Mark Salyzyn

> -----Original Message-----
> From: linux-scsi-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-scsi-owner@xxxxxxxxxxxxxxx] On Behalf Of Salyzyn, Mark
> Sent: Thursday, June 07, 2007 1:21 PM
> To: linux-scsi@xxxxxxxxxxxxxxx
> Subject: [PATCH] aacraid: add SCSI SYNCHONIZE_CACHE range checking. 
> 
> 
> Customer running an application that issues SYNCHRONIZE_CACHE calls
> directly noticed the broad stroke of the current implementation in the
> aacraid driver resulting in multiple applications feeding I/O to the
> storage causing the issuing application to stall for long periods of
> time. By only waiting for the current WRITE commands, rather than all
> commands, to complete; and those that are in range of the
> SYNCHRONIZE_CACHE call that would associate more tightly with the
> issuing application before telling the Firmware to flush it's dirty
> cache, we managed to reduce the stalling. The Firmware itself still
> flushes all the dirty cache associated with the array ignoring the
> range, it just does so in a more timely manner.
> 
> This attached patch is against current scsi-misc-2.6
> 
> ObligatoryDisclaimer: Please accept my condolences regarding Outlook's
> handling of patch attachments.
> 
> Signed-off-by: Mark Salyzyn <aacraid@xxxxxxxxxxx>
> 
> Sincerely -- Mark Salyzyn

Attachment: aacraid_synch_range2.patch
Description: aacraid_synch_range2.patch


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux