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[SCSI] st: raise device limit
The device limit of 128 tape drives was established in 2003 as a significant increase from the 8 tape drives allowed previously. We're seeing customer sites that between a large number of drives and multipath are discovering more than 128 devices and running into problems. Now that we're not stuck having to store a pointer in array and aren't limited by kmalloc failing on higher order allocs we can lift the limit to fill the entire minor range based on the number of modes. Based on the current code, that's 2^17 devices. Reviewed-by: Lee Duncan <firstname.lastname@example.org> Signed-off-by: Jeff Mahoney <email@example.com> Acked-by: Kai Mäkisara <firstname.lastname@example.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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