On Sat, Feb 02 2013, Tejun Heo wrote:
> idr allocation in blk_alloc_devt() wasn't synchronized against lookup
> and removal, and its limit check was off by one - 1 << MINORBITS is
> the number of minors allowed, not the maximum allowed minor.
> 
> Add locking and rename MAX_EXT_DEVT to NR_EXT_DEVT and fix limit
> checking.
> 
> Signed-off-by: Tejun Heo <[email protected]>
> Cc: Jens Axboe <[email protected]>
> Cc: [email protected]

Acked-by: Jens Axboe <[email protected]>

-- 
Jens Axboe

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