On 01/25/2012 09:42 PM, Boaz Harrosh wrote:
>
> It used to be that minors where 8 bit. But now they
> are actually 20 bit. So the fix is simplicity itself.
>
> I've tested with 300 devices and all user-mode utils
> work just fine. I have also mechanically added 10,000
> to the ida (so devices are /dev/osd10000, /dev/osd10001 ...)
> and was able to mkfs an exofs filesystem and access osds
> from user-mode.
>
> All the open-osd user-mode code uses the same library
> to access devices through their symbolic names in
> /dev/osdX so I'd say it's pretty safe. (Well tested)
>
> This patch is very important because some of the systems
> that will be deploying the 3.2 pnfs-objects code are larger
> than 64 OSDs and will stop to work properly when reaching
> that number.
>
> CC: Stable <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Boaz Harrosh <bharrosh@xxxxxxxxxxx>
James Hi
You never came back to me on this patch. It is very important for the
setups all this osd stuff is intended for. It is a simple bug right in the
middle of the system, which makes it useless. (I'm so embarrassed I made it
in the first place)
I have put it in today's linux-next, so it can collect dust there.
Please tell me if you want to carry this for this rc-fixes or I should
push it through the osd tree.
Thanks
Boaz
> ---
> drivers/scsi/osd/osd_uld.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
> index b31a8e3..d4ed9eb 100644
> --- a/drivers/scsi/osd/osd_uld.c
> +++ b/drivers/scsi/osd/osd_uld.c
> @@ -69,10 +69,10 @@
> #ifndef SCSI_OSD_MAJOR
> # define SCSI_OSD_MAJOR 260
> #endif
> -#define SCSI_OSD_MAX_MINOR 64
> +#define SCSI_OSD_MAX_MINOR MINORMASK
>
> static const char osd_name[] = "osd";
> -static const char *osd_version_string = "open-osd 0.2.0";
> +static const char *osd_version_string = "open-osd 0.2.1";
>
> MODULE_AUTHOR("Boaz Harrosh <bharrosh@xxxxxxxxxxx>");
> MODULE_DESCRIPTION("open-osd Upper-Layer-Driver osd.ko");
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