Am Freitag, den 26.10.2012, 20:33 +0800 schrieb Yuanhan Liu: > On Fri, Oct 26, 2012 at 11:30:27AM +0200, Stefani Seibold wrote: > > Am Freitag, den 26.10.2012, 15:56 +0800 schrieb Yuanhan Liu: > > > Say, if we want to allocate a filo with size of 6 bytes, it would be safer > > > to allocate 8 bytes instead of 4 bytes. > > > ---- > > > I know it works with rounddown_pow_of_two as well, since size is > > > maintained > > > in the kfifo internal part. But, I'm quite curious why Stefani chose > > > rounddown_pow_of_two. To reduce memory? > > > > > > > Yes, exactly, if a user do the wrong thing, than the user will get also > > a wrong result, and did not waste memory. > > But, isn't it better to 'correct' it? ;-)
Both is wrong. This depends on the view. For me it is better to get less and don't wast space. For example: requesting 1025 will yield in your case to a fifo which 2048 elements, which requires double of the memory as expected. > > > > > But anyway, if the majority like this patch it is okay for me. > > Sorry, do you mean you are OK with this patch? > I depends not on me, ask for a democratic decisions. Greetings, Stefani -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
