IDR_ALLOC_CYCLIC(9)               Basic Kernel Library Functions              IDR_ALLOC_CYCLIC(9)



NAME
       idr_alloc_cyclic - allocate new idr entry in a cyclical fashion

SYNOPSIS
       int idr_alloc_cyclic(struct idr * idr, void * ptr, int start, int end, gfp_t gfp_mask);

ARGUMENTS
       idr
           the (initialized) idr

       ptr
           pointer to be associated with the new id

       start
           the minimum id (inclusive)

       end
           the maximum id (exclusive, <= 0 for max)

       gfp_mask
           memory allocation flags

DESCRIPTION
       Essentially the same as idr_alloc, but prefers to allocate progressively higher ids if it
       can. If the “cur” counter wraps, then it will start again at the “start” end of the range
       and allocate one that has already been used.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       IDR_ALLOC_CYCLIC(9)