On Fri, Apr 08, 2011 at 09:20:49PM -0300, Davidlohr Bueso wrote:
> This functions returns the status of the device's alignment. It will
> be 0 when aligned, otherwise return the offset.
>
> Signed-off-by: Davidlohr Bueso <dave@xxxxxxx>
> ---
> include/blkdev.h | 3 +++
> lib/blkdev.c | 12 ++++++++++++
> 2 files changed, 15 insertions(+), 0 deletions(-)
Applied, thanks.
> +/*
> + * Return the alignment status of a device
> + */
> +int blkdev_is_misaligned(int fd)
> +{
> + int aligned;
> +
> + if (ioctl(fd, BLKALIGNOFF, &aligned) < 0)
> + return -1;
return 0;
The function should not report any problem on old kernels. We have to
print the warning only if we are really sure that the device is
misaligned.
> + return aligned;
> +}
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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