Re: [git patch] another libata fix

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

 



Jeff Garzik wrote:
NOTE:  This is appended to the previous libata fixes, in a linear
history.  If you pull this, and have not pulled yesterday's submission,
you will get -both-.  If you pulled yesterday's fixes, you will only get
the single changeset below.

Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus

to receive the following updates:

 drivers/ata/pdc_adma.c   |    9 +-
 drivers/ata/sata_mv.c    |   26 +-
 drivers/ata/sata_sil24.c |   11 +-
 drivers/scsi/ipr.c       |   11 +-
 include/linux/libata.h   |   12 -
 11 files changed, 1567 insertions(+), 90 deletions(-)
 create mode 100644 drivers/ata/sata_fsl.c


[libata] kill ata_sg_is_last()

Short term, this works around a bug introduced by early sg-chaining
work.

Long term, removing this function eliminates a branch from a hot
path loop in each scatter/gather table build.  Also, as this code
demonstrates, we don't need to _track_ the end of the s/g list, as
long as we mark it in some way.  And doing so programatically is nice.
So its a useful cleanup, regardless of its short term effects.

Based conceptually on a quick patch by Jens Axboe.

Signed-off-by: Jeff Garzik <jgarzik@xxxxxxxxxx>


And if it wasn't clear from the flurry of emails, this is independent from and parallel to Jens' current work.

So, it should not conflict, and it fixes several do-not-work-at-all drivers broken by sg-chaining.

	Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux