Messages in this thread | | | Date | Thu, 8 Jul 2021 23:21:05 -0700 | From | Yury Norov <> | Subject | Re: [PATCH 2/2] bitmap: introduce for_each_set_bitrange |
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On Thu, Jul 08, 2021 at 08:45:19PM -0700, Yury Norov wrote: > bitmap_list_string() is very ineffective when printing bitmaps with long > ranges of set bits because it calls find_next_bit for each bit. We can do > better by detecting ranges of set bits. > > This patch introduces a macro for_each_set_bitrange and uses it in > bitmap_list_string(). In my environment, before/after is 943008/31008 ns.
Ah, it seems we already have bitmap_for_each_{set,clear}_region() with the same functionality. I'll check everything again and submit v2 soon.
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