Boaz Harrosh 41f8ad7636 [SCSI] osd_uld: Bump MAX_OSD_DEVICES from 64 to 1,048,576 ... 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@vger.kernel.org> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>		2012-02-25 08:25:09 -06:00
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osd_uld.c	[SCSI] osd_uld: Bump MAX_OSD_DEVICES from 64 to 1,048,576	2012-02-25 08:25:09 -06:00